HomeMy WebLinkAboutBID - 6115 RESOURCE RECOVERY FARM OUTLET PIPE (2)ADDENDUM No. 1
SPECIFICATIONS AND CONTRACT DOCUMENTS
Description of Bid: 6115 Resource Recovery Farm Outlet Pipe
OPENING DATE: 3:00 P.M. (Our Clock) October 17, 2008
To all prospective bidders under the specifications and contract documents described above,
the following changes are hereby made.
CHANGE:
The Bid Opening Date has been changed to 3:00 P.M. (Our Clock) October 17, 2008
CLARIFICATION:
1. The pipe material for the existing 21-inch sanitary sewer is Techite, which is a wound
fiberglass-cement pipe product that is no longer manufactured. A plan for supporting the
sanitary sewer will need to be reviewed and approved by both the City’s engineer, and
Boxelder Sanitation District. The District has also stipulated the following;
• The sewer carries an average daily flow of 1400 gpm;
• The sewer will need to remain operational throughout the project;
• The pipe is to remain intact and may not be cut and replaced with PVC or other
pipe materials;
• The trench width shall be kept as narrow as possible in the vicinity of the sanitary
sewer to minimize the length of sanitary sewer to be supported;
• The 24-inch RCP siphon will be backfilled with CDOT # 67 bedding material to an
elevation 6 inches below the sanitary sewer. The sewer will be encased in
squeegee sand to an elevation 30-inches above the sewer pipe. Above the
squeegee sand, the trench shall be backfilled per Specification Section 02320 –
Trench Excavation and Backfill; and
• The District will camera the pipe both before and after construction to document
the condition of the sewer before and after construction.
2. Staging and stockpile areas are to be located in the grass open area, directly west of the
upstream end of the proposed 24-inch RCP. The revegetation and erosion control for
these areas should be accounted for in the revised Bid Schedule shown below.
3. Two potholes were dug on Tuesday October 7th by CTL Thompson, the City’s
geotechnical consultant. The holes were at Station 5+00, Station 2+00, and at Station
0+50 along the pipe alignment. The results of the test pit excavation are included with
this addendum.
Financial Services
Purchasing Division
215 N. Mason St. 2nd Floor
PO Box 580
Fort Collins, CO 80522
970.221.6775
970.221.6707
fcgov.com/purchasing
4. The bid item for Muck Excavation includes both the removal of the muck material and
supplying and installing the replacement material to stabilize the work area. See Item 8
in “Specification Section 01270 – Measurement and Payment,” “Specification Section
02315 – Excavation and Embankment,” and Section 2.01 of “Specification Section
02320 – Trench Excavation and Backfill” for further clarification.
5. The bedding requirements for the pipe shall be Class B, as shown in Detail 2/6 of the
Construction Drawings, unless unstable subgrade or rock is encountered. If unstable
subgrade or rock is encountered, the alternate bedding details shown will apply.
6. Pumping of water will continue from the pond east of the upstream end of the proposed
pipe inlet. The discharge pipe from the pump will remain in operation during the
construction of the 24-inch CP. However, the pump discharge pipe may be moved to
accommodate construction activities. It is unknown at this time whether the water level in
this pond will be lower than its present level during the construction of the 24-inch RCP.
7. There is no specific leak test required for the pipe; however the requirements for the pipe
and its installation are outlined in “Specification Section 02610 – Reinforced Concrete
Pipe.”
Revised Bid Schedule is attached and changes include additional revegetation (Item 16) and silt
fence (Item 18) for the staging and stockpile areas.
Please contact John D. Stephen, CPPO, CPPB, Senior Buyer at (970) 221-6777 with any
questions regarding this addendum.
RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN STATEMENT
ENCLOSED WITH THE BID/QUOTE STATING THAT THIS ADDENDUM HAS BEEN
RECEIVED.
Project: Resource Recovery Farm Outlet Pipe
Date: Bid Schedule Addendum 1
Item Description Unit Estimated Unit Item
Number Quantity Cost ($)
Cost
($)
1 Mobilization and Field Overhead LS 1
2 Traffic Control LS 1
3 Clearing and Grubbing LS 1
4 Construction Dewatering LS 1
5 Construction Surveying and Staking LS 1
6 Remove, Stockpile, and Replace Existing Riprap on River Bank CY 40
7 Unclassified Excavation CY 140
8 Muck Excavation CY 50
9 Embankment CY 50
10 24-inch Reinforced Concrete Pipe LF 700
11 48-inch Manhole EA 4
12 Sand Cutoff Wall CY 16
13 Concrete Headwall with Slidegate EA 2
14 Riprap (Class 9) CY 14
15 Miscellaneous Metals - Trash Racks LS 1
16 Landscape - Ground Preparation and Seeding AC 2
17 Erosion Control - Temporary Coffer Dam LS 1
18 Erosion Control - Silt Fence LF 1590
19 Erosion Control - Sediment Trap/In Channel BMP EA 1
TOTAL COST
TOTAL COST IN WORDS
Test Pit Excavation
SPECIFICATIONS
AND
CONTRACT DOCUMENTS
FOR
RESOURCE RECOVERY FARM
OUTLET PIPE
BID NO. 6115
PURCHASING DIVISION
215 NORTH MASON STREET, 2ND FLOOR, FORT COLLINS
October 14, 2008 – 3:00 P.M. (OUR CLOCK)
Financial Services
Purchasing Division
215 N. Mason St. 2nd Floor
PO Box 580
Fort Collins, CO 80522
970.221.6775
970.221.6707
fcgov.com/purchasing
CONTRACT DOCUMENTS TABLE OF CONTENTS
Section Pages
BID INFORMATION
00020 Invitation to Bid 00020-1 - 00020-2
00100 Instruction to Bidders 00100-1 - 00100-9
00300 Bid Form 00300-1 - 00300-3
00400 Supplements to Bid Forms 00400-1
00410 Bid Bond 00410-1 - 00410-2
00420 Statements of Bidders Qualifications 00420-1 - 00420-3
00430 Schedule of Major Subcontractors 00430-1
CONTRACT DOCUMENTS
00500 Agreement Forms 00500-1
00510 Notice of Award 00510-0
00520 Agreement 00520-1 - 00520-6
00530 Notice to Proceed 00530-1
00600 Bonds and Certificates 00600-1
00610 Performance Bond 00610-1 - 00610-2
00615 Payment Bond 00615-1 - 00615-2
00630 Certificate of Insurance 00630-1
00635 Certificate of Substantial Completion 00635-1
00640 Certificate of Final Acceptance 00640-1
00650 Lien Waiver Release(Contractor) 00650-1 - 00650-2
00660 Consent of Surety 00660-1
00670 Application for Exemption Certificate 00670-1 - 00670-2
CONDITIONS OF THE CONTRACT
00700 General Conditions 00700-1 - 00700-34
Exhibit GC-A GC-A1 - GC-A2
00800 Supplementary Conditions 00800-1 - 00800-2
00900 Addenda, Modifications, and Payment 00900-1
00950 Contract Change Order 00950-1 - 00950-2
00960 Application for Payment 00960-1 - 00960-4
SPECIFICATIONS
DRAWINGS
Rev 10/20/07 Section 00020 Page 2
SECTION 00020
INVITATION TO BID
Rev 10/20/07 Section 00020 Page 1
SECTION 00020
INVITATION TO BID
Date: September 23, 2008
Sealed Bids will be received by the City of Fort Collins (hereinafter
referred to as OWNER), at the office of the Purchasing Division, 3:00
P.M., our clock, on October 14, 2008, for the Resource Recovery Farm
Outlet Pipe; BID NO. 6115. If delivered, they are to be delivered to
215 North Mason Street, 2nd Floor, Fort Collins, Colorado, 80524. If
mailed, the mailing address is P. O. Box 580, Fort Collins, CO 80522-
0580.
At said place and time, and promptly thereafter, all Bids that have
been duly received will be publicly opened and read aloud.
The Contract Documents provide for the construction of Bid 6115
Resource Recovery Farm Outlet Pipe The contract documents provide for
installation of 700 linear feet of 24-inch RCP, concrete manholes,
concrete headwalls with slidegates, a sand cutoff wall, sanitary sewer
pipe encasement, and rock riprap.
All Bids must be in accordance with the Contract Documents on file
with The City of Fort Collins, 215 North Mason St., 2nd floor, Fort
Collins, Colorado 80524.
A prebid conference and job walk with representatives of prospective
Bidders will be held at 10:00 a.m., on October 2, 2008, at 215 North
Mason, 2nd Floor, Training Room, Fort Collins, CO.
Prospective Bidders are invited to present their questions relative to
this Bid proposal at this meeting.
The Contract Documents and Construction Drawings may be examined
online at:
• www.fcgov.com/eprocurement
Bids will be received as set forth in the Bidding Documents.
The Work is expected to be commenced within the time as required by
Section 2.3 of General Conditions. Substantial Completion of the Work
is required as specified in the Agreement.
The successful Bidder will be required to furnish a Performance Bond
and a Payment Bond guaranteeing faithful performance and the payment
of all bills and obligations arising from the performance of the
Contract.
Rev 10/20/07 Section 00020 Page 2
No Bid may be withdrawn within a period of forty-five (45) days after
the date fixed for opening Bids.
The OWNER reserves the right to reject any and all Bids, and to waive
any informalities and irregularities therein.
Bid security in the amount of not less than 5% of the total Bid must
accompany each Bid in the form specified in the Instructions to
Bidders.
Sales Prohibited/Conflict of Interest: No officer, employee, or member
of City Council, shall have a financial interest in the sale to the
City of any real or personal property, equipment, material, supplies
or services where such officer or employee exercises directly or
indirectly any decision-making authority concerning such sale or any
supervisory authority over the services to be rendered. This rule also
applies to subcontracts with the City. Soliciting or accepting any
gift, gratuity favor, entertainment, kickback or any items of monetary
value from any person who has or is seeking to do business with the
City of Fort Collins is prohibited
City of Fort Collins
By ______________________________________
James B. O'Neill, II, CPPO, FNIGP
Purchasing & Risk Management Director
SECTION 00100
INSTRUCTIONS TO BIDDERS
Rev 10/20/07 Section 00100 Page 1
SECTION 00100
INSTRUCTIONS TO BIDDERS
1.0 DEFINED TERMS
Terms used in these Instructions to Bidders which are defined in
the Standard General Conditions of the Construction Contract (No.
1910-8, 1990 ed.) have the meanings assigned to them in the
General Conditions. The term "Bidder" means one who submits a
Bid to OWNER, as distinct from a sub-bidder, who submits a Bid to
Bidder. The terms "Successful Bidder" means the lowest,
qualified, responsible and responsive Bidder to whom OWNER (on
basis of OWNER's evaluation as hereinafter provided) makes an
award. The term "Bidding Documents" includes the Advertisement
or Invitation to Bid, Instructions to Bidders, the Bid Form, and
the proposed Contract Documents (including all Addenda issued
prior to receipt of Bids).
2.0 COPIES OF BIDDING DOCUMENTS
2.1. Complete sets of Bidding Documents may be obtained as
stated in the Invitation to Bid. No partial sets will be issued.
The Bidding Documents may be examined at the locations identified
in the Invitation to Bid.
2.2. Complete sets of Bidding Documents shall be used in
preparing Bids; neither OWNER nor Engineer assumes any
responsibility for errors or misinterpretations resulting from
the use of incomplete sets of Bidding Documents.
2.3. The submitted Bid proposal shall include Sections 00300,
00410, 00420, and 00430 fully executed.
2.4. OWNER and Engineer, in making copies of Bidding Documents
available on the above terms, do so only for the purpose of
obtaining Bids on the Work and do not confer a license or grant
for any other use.
3.0 QUALIFICATION OF BIDDERS
3.1 To demonstrate qualifications to perform the Work, each
Bidder must submit at the time of the Bid opening, a written
statement of qualifications including financial data, a summary
of previous experience, previous commitments and evidence of
authority to conduct business in the jurisdiction where the
Project is located. Each Bid must contain evidence of Bidder's
qualification to do business in the state where the Project is
located or covenant to obtain such qualification prior to award
of the contract. The Statement of Qualifications shall be
prepared on the form provided in Section 00420.
Rev 10/20/07 Section 00100 Page 2
3.2. In accordance with Section 8-160 of the Code of the City of
Fort Collins in determining whether a bidder is responsible, the
following shall be considered: (1) The ability, capacity and
skill of the bidder to perform the contract or provide the
services required, (2) whether the bidder can perform the
contract or provide the service promptly and within the time
specified without delay or interference, (3) the character,
integrity, reputation, judgment, experience and efficiency of the
bidder, (4) the quality of the bidder's performance of previous
contracts or services, (5) the previous and existing compliance
by the bidder with laws and ordinances relating to the contract
or service, (6) the sufficiency of the financial resources and
ability of the bidder to perform the contract or provide the
service, (7) the quality, availability and adaptability of the
materials and services to the particular use required, (8) the
ability of the bidder to provide future maintenance and service
for the use of the subject of the contract, and (9) any other
circumstances which will affect the bidder's performance of the
contract.
3.3. Each Bidder may be required to show that he has handled
former Work so that no just claims are pending against such Work.
No Bid will be accepted from a Bidder who is engaged on any other
Work which would impair his ability to perform or finance this
Work.
3.4 No Bidder shall be in default on the performance of any
other contract with the City or in the payment of any taxes,
licenses or other monies due to the City.
4.0 EXAMINATION OF CONTRACT DOCUMENTS AND SITE
4.1. It is the responsibility of each Bidder, before submitting
a Bid, to (a) examine the Contract Documents thoroughly, (b)
visit the site to familiarize himself with local conditions that
may in any manner affect cost, progress or performance of the
Work, (c) familiarize himself with federal, state and local laws,
ordinances, rules and regulations that may in any manner affect
cost, progress or performance of the Work, (d) study and
carefully correlate Bidder's observations with the Contract
Documents, and (e) notify Engineer of all conflicts, errors or
discrepancies in the Contract Documents.
4.2. Reference is made to the Supplementary Conditions for
identification of: Subsurface and Physical Conditions SC-4.2.
4.3. The submission of a Bid will constitute an incontrovertible
representation by Bidder that Bidder has complied with every
requirement of this Article 4, that without exception the Bid is
Rev 10/20/07 Section 00100 Page 3
premised upon performing and furnishing the Work required by the
Contract Documents and such means, methods, techniques, sequences
or procedures of construction as may be indicated in or required
by the Contract Documents, and that the Contract Documents are
sufficient in scope and detail to indicate and convey
understanding of all terms and conditions for performance and
furnishing of the Work.
5.0 INTERPRETATIONS AND ADDENDA.
5.1. All questions about the meaning or intent of the Bidding
Documents are to be submitted in writing to the Engineer and the
OWNER. Interpretation or clarifications considered necessary in
response to such questions will be issued only by Addenda.
Questions received less than seven days prior to the date for
opening of the Bids may not be answered. Only questions answered
by formal written Addenda will be binding. Oral and other
interpretations or clarifications will be without legal effect.
5.2. All questions concerning the scope of this project should
be directed to the Engineer. Questions regarding submittal of
bids should be directed to the City of Fort Collins' Purchasing
Division.
5.3. Addenda may also be issued to modify the Bidding Documents
as deemed advisable by OWNER or Engineer.
5.4. Addenda will be mailed or delivered to all parties recorded
by the OWNER as having received the Bidding documents.
6.0 BID SECURITY
6.1. Each Bid must be accompanied by Bid Security made payable
to OWNER in the amount stated in the Invitation to Bid. The
required security must be in the form of a certified or bank
cashier's check payable to OWNER or a Bid Bond on the form
enclosed herewith. The Bid Bond must be executed by a surety
meeting the requirements of the General Conditions for surety
bonds.
6.2. The Bid Security of the successful Bidder will be retained
until such Bidder has executed the Agreement and furnished the
required contract security, whereupon Bid Security will be
returned. If the successful Bidder fails to execute and deliver
the Agreement and furnish the required contract security within
15 days of the Notice of Award, OWNER may annul the Notice of
Award and the Bid Security of that Bidder will be forfeited. The
Bid Security of other Bidders whom OWNER believes to have
reasonable chance receiving the award may be retained by OWNER
until the earlier of the seventh day after the effective date of
the Agreement or the thirty-first day after the Bid Opening,
Rev 10/20/07 Section 00100 Page 4
whereupon Bid Security furnished by such Bidders will be
returned. Bid Security with Bids which are not competitive will
be returned within seven days after the Bid opening.
7.0 CONTRACT TIME.
The number of days within which, or the date by which the Work is
to be substantially complete and also completed and ready for
Final Payment (the Contract Times) are set forth in the
Agreement.
8.0 LIQUIDATED DAMAGES.
Provisions for liquidated damages are set forth in the Agreement.
9.0 SUBSTITUTE ("OR EQUAL") MATERIAL AND EQUIPMENT
The Contract, if awarded, will be on the basis of material and
equipment described on the Drawings or specified in the
Specifications without consideration of possible substitute or
"or equal" items. Whenever it is indicated on the Drawings or
specified in the Specifications that a substitute or "or equal"
item of material or equipment may be furnished or used by
CONTRACTOR if acceptable to Engineer, application for such
acceptance will not be considered by Engineer until after the
"effective date of the Agreement". The procedure for submittal
of any such application by CONTRACTOR and consideration by
Engineer is set forth in the General Conditions which may be
supplemented in the General Requirements.
10.0 SUBCONTRACTORS, SUPPLIERS AND OTHERS
10.1. Each Bidder shall submit at the Bid opening to OWNER a
list of principal subcontractors he proposes to use in the Work.
Refer to Section 00430 contained within these Documents.
10.2. If OWNER or Engineer after due investigation has
reasonable objection to any proposed Subcontractor, either may,
before the Notice of Award is given, request the apparent
successful Bidder to submit an acceptable substitute without an
increase in Bid price. If the apparent successful Bidder
declines to make any substitution, OWNER may award the contract
to the next lowest responsive and responsible Bidder that
proposes to use acceptable subcontractors. Subcontractors,
suppliers, other persons or organization listed and to whom OWNER
or Engineer does not make written objection prior to the giving
of the Notice of Award will be deemed acceptable to OWNER and
ENGINEER subject to revocation of such acceptance after the
effective date of the Agreement as provided in the General
Conditions.
10.3. CONTRACTOR shall not be required to employ any
Rev 10/20/07 Section 00100 Page 5
subcontractor, supplier or other persons or organizations against
whom he has reasonable objection. The use of subcontractors
listed by the Bidder and accepted by OWNER prior to the Notice of
Award will be required in the performance of the Work.
11.0 BID FORM.
11.1. A copy of the Bid Form is bound in the Contract Documents
which may be retained by the Bidder. A separate unbound copy is
enclosed for submission with the Bid.
11.2. Bid Forms must be complete in ink or typed. All lump sum
prices on the form must be stated in words and numerals; in case
of conflict, words will take precedence. Unit prices shall
govern over extensions of sums.
11.3. Bids by corporations must be executed in the corporate
name by the president or a vice-president (or other appropriate
officer accompanied by evidence of authority to sign) and the
corporate seal shall be affixed and attested by the secretary or
an assistant secretary. The corporate address and state of
incorporation shall be shown below the corporate name.
11.4. Bids by partnerships must be executed in the partnership
name and signed by a partner, his title must appear under his
signature and the official address of the partnership must be
shown below the signature.
11.5. Bids by joint venture shall be signed by each participant
in the joint venture or by an authorized agent of each
participant. The full name of each person or company interested
in the Bid shall be listed on the Bid Form.
11.6. The Bid shall contain an acknowledgement of receipt of all
Addenda (the numbers of which must be filled in on the Bid Form).
11.7. No alterations in Bids, or in the printed forms therefore,
by erasures, interpolations, or otherwise will be acceptable
unless each such alteration is signed or initialed by the Bidder;
if initialed, OWNER may require the Bidder to identify any
alteration so initialed.
11.8. The address and telephone number for communications
regarding the Bid shall be shown.
12.0 BID PRICING.
Bids must be priced as set forth in the Bid Schedule or
Schedules.
13.0 SUBMISSION OF BIDS.
Rev 10/20/07 Section 00100 Page 6
13.1. Bids shall be submitted at the time and place indicated in
the Invitation to Bid and shall be enclosed in an opaque sealed
envelope marked with the Project title, Bid No., and name and
address of the Bidder and accompanied by the Bid Security, Bid
Form, Bid Bond, Statement of Bidders Qualifications, and Schedule
of Subcontractors as required in Section 00430. If the Bid is
sent through the mail or other delivery system, the sealed
envelope shall be enclosed in a separate envelope with the
notation "BID ENCLOSED" on the face of it.
13.2. Bids shall be deposited at the designated location prior
to the time and date for receipt of Bids indicated in the
Invitation to Bid, or any extension thereof made by addendum.
Bids received after the time and date for receipt of Bids will be
returned unopened. Bidder shall assume full responsibility for
timely delivery at the location designated for receipt of Bids.
13.3. Oral, telephonic, telegraphic, or facsimile Bids are
invalid and will not receive consideration.
13.4. No Bidder may submit more than one Bid. Multiple Bids
under different names will not be accepted from one firm or
association.
14.0 MODIFICATION AND WITHDRAWAL OF BIDS.
14.1. Bids may be modified or withdrawn by an appropriate
document duly executed (in a manner that a Bid must be executed)
and delivered to the place where Bids are to be submitted at any
time prior to the opening of Bids.
14.2. Bids may also be modified or withdrawn in person by the
Bidder or an authorized representative provided he can prove his
identity and authority at any time prior to the opening of Bids.
14.3. Withdrawn Bids may be resubmitted up to the time
designated for the receipt of Bids provided that they are then
fully in conformance with these Instructions to Bidders.
15.0 OPENINGS OF BIDS.
Bids will be opened and (unless obviously non-responsive) read
aloud publicly as indicated in the Invitation to Bid. An
abstract of the amounts of the Base Bids and major alternates (if
any) will be made available after the opening of Bids.
16.0 BIDS TO REMAIN OPEN SUBJECT TO ACCEPTANCE.
All Bids shall remain open for forty-five (45) days after the day
Rev 10/20/07 Section 00100 Page 7
of the Bid Opening, but OWNER may, in his sole discretion,
release any Bid and return the Bid Security prior to that date.
17.0 AWARD OF CONTRACT.
17.1. OWNER reserves the right to reject any and all Bids, to
waive any and all informalities not involving price, time or
changes in the Work, to negotiate contract terms with the
Successful Bidder, and the right to disregard all nonconforming,
nonresponsive, unbalanced or conditional Bids. Also, OWNER
reserves the right to reject the Bid of any Bidder if OWNER
believes that it would not be in the best interest of the Project
to make an award to that Bidder, whether because the Bid is not
responsive or the Bidder is unqualified or of doubtful financial
ability or fails to meet any other pertinent standard or criteria
established by OWNER. Discrepancies between the indicated sum of
any column of figures and the correct sum thereof will be
resolved in favor of the correct sum.
17.2. In evaluating Bids, OWNER will consider the qualifications
of the Bidders, whether or not the Bids comply with the
prescribed requirements, and such alternates, unit prices and
other data, as may be requested in the Bid Form or prior to the
Notice of Award.
17.3. OWNER may consider the qualification and experience of
Subcontractors, Suppliers, and other persons and organizations
proposed for those portions of the Work as to which the identity
of Subcontractors, Suppliers, and other persons and organizations
is submitted as requested by OWNER. OWNER also may consider the
operating costs, maintenance requirements, performance data and
guarantees of major items of materials and equipment proposed for
incorporation in the Work when such data is required to be
submitted prior to the Notice of Award.
17.4. OWNER may conduct such investigations as OWNER deems
necessary to assist in the evaluation of any Bid and to establish
the responsibility, qualifications and financial ability of the
Bidder's proposed Subcontractors, Suppliers and other persons and
organizations to do the Work in accordance with the Contract
Documents to OWNER's satisfaction within the prescribed time.
17.5. If the Contract is to be awarded, it will be awarded to
the lowest responsive and responsible Bidder whose evaluation by
OWNER indicates to OWNER that the award will be in the best
interest of the OWNER. Award shall be made on the evaluated
lowest base bid excluding alternates. The basis for award shall
be the lowest Bid total for the Schedule or, in the case of more
than one schedule, for sum of all schedules. Only one contract
will be awarded.
Rev 10/20/07 Section 00100 Page 8
17.6. If the Contract is to be awarded, OWNER will give the
Successful Bidder a Notice of Award within forty-five (45) days
after the date of the Bid opening.
18.0 CONTRACT SECURITY.
The General Conditions and the Supplementary Conditions set forth
OWNER's requirements as to performance and other Bonds. When the
Successful Bidder delivers the executed Agreement to the OWNER,
it shall be accompanied by the required Contract Security.
19.0 SIGNING OF AGREEMENT.
When OWNER gives a Notice of Award to the Successful Bidder, it
will be accompanied by the required number of unsigned
counterparts of the Agreement with all other written Contract
Documents attached. Within fifteen (15) days thereafter,
CONTRACTOR shall sign and deliver the required number of
counterparts of the Agreement and attached documents to OWNER
with the required Bonds. Within ten (10) days thereafter, OWNER
shall deliver one fully signed counterpart to CONTRACTOR. Each
counterpart is to be accompanied by a complete set of the
Drawings with appropriate identification.
20.0 TAXES.
OWNER is exempt from Colorado State Sales and Use Taxes on
materials and equipment to be incorporated in the Work. Said
taxes shall not be included in the Contract Price. Reference is
made to the General and Supplementary Conditions.
21.0 RETAINAGE.
Provisions concerning retainage are set forth in the Agreement.
22.0 PURCHASING RESTRICTIONS.
Purchasing restrictions: The Bidder's authorized signature of
this Bid assures the Bidder's compliance with the City's
purchasing restrictions. A copy of the resolutions are available
for review in the Purchasing and Risk Management Division or the
City Clerk's office.
A. Cement Restrictions: City of Fort Collins Resolution 91-
121 requires that suppliers and producers of cement or
products containing cement to certify that the cement was
not made in cement kilns that burn hazardous waste as a
fuel.
23.0 COLLUSIVE OR SHAM BIDS.
Rev 10/20/07 Section 00100 Page 9
Any Bid deemed by the City in its sole discretion to be a
collusive or sham Bid will be rejected and reported to
authorities as such. Your authorized signature of this Bid
assures that such Bid is genuine and is not a collusive or sham
Bid.
24.0 BID RESULTS.
For information regarding results for individual Bids send a
self-addressed, self-stamped envelope and a Bid tally will be
mailed to you. Bid results will be posted in the Purchasing
office seven (7) days after the Bid Opening.
END OF SECTION
SECTION 00300
BID FORM
Rev 10/20/07 Section 00300 Page 1
SECTION 00300
BID FORM
PROJECT: 6115 Resource Recover Farm Outlet Pipe
Place
Date
1. In compliance with your Invitation to Bid dated __, 20__
and subject to all conditions thereof, the undersigned
a (Corporation, Limited Liability Company, Partnership, Joint
Venture, or Sole Proprietor) authorized to do business in the
State of Colorado hereby proposes to furnish and do everything
required by the Contract Documents to which this refers for the
construction of all items listed on the following Bid Schedule or
Bid Schedules.
2. The undersigned Bidder does hereby declare and stipulate that
this proposal is made in good faith, without collusion or
connection with any other person or persons Bidding for the same
Work, and that it is made in pursuance of and subject to all the
terms and conditions of the Invitation to Bid and Instructions to
Bidders, the Agreement, the detailed Specifications, and the
Drawings pertaining to the Work to be done, all of which have
been examined by the undersigned.
3. Accompanying this Bid is a certified or cashier's check or
standard Bid bond in the sum of
______________________________________________________
($ ___) in accordance with the Invitation To Bid and
Instructions to Bidders.
4. The undersigned Bidder agrees to execute the Agreement and a
Performance Bond and a Payment Bond for the amount of the total
of this Bid within fifteen (15) calendar days from the date when
the written notice of the award of the contract is delivered to
him at the address given on this Bid. The name and address of
the corporate surety with which the Bidder proposes to furnish
the specified performance and payment bonds is as follows:
_________________________________________________________.
5. All the various phases of Work enumerated in the Contract
Documents with their individual jobs and overhead, whether
specifically mentioned, included by implication or appurtenant
thereto, are to be performed by the CONTRACTOR under one of the
items listed in the Bid Schedule, irrespective of whether it is
named in said list.
6. Payment for Work performed will be in accordance with the Bid
Schedule or Bid Schedules subject to changes as provided in the
Rev 10/20/07 Section 00300 Page 2
Contract Documents.
7. The undersigned Bidder hereby acknowledges receipt of Addenda No.
_______through .
8. BID SCHEDULE (Base Bid)
Rev 10/20/07 Section 00300 Page 3
9. PRICES
The foregoing prices shall include all labor, materials,
transportation, shoring, removal, dewatering, overhead, profit,
insurance, etc., to cover the complete Work in place of the
several kinds called for.
Bidder acknowledges that the OWNER has the right to delete items
in the Bid or change quantities at his sole discretion without
affecting the Agreement or prices of any item so long as the
deletion or change does not exceed twenty-five percent (25%) of
the total Agreement Price.
RESPECTFULLY SUBMITTED:
______________________________________
_
CONTRACTOR
BY:___________________________________
________________________________ __________________
Signature Date
________________________________
Title
________________________________
License Number (If Applicable)
(Seal - if Bid is by corporation)
Attest:___________________________
Address _____________________________________
_____________________________________
Telephone _____________________________________
Email _____________________________________
Rev 10/20/07 Section 00410 Page 1
SECTION 00400
SUPPLEMENTS TO BID FORMS
00410 Bid Bond
00420 Statement of Bidder's Qualifications
00430 Schedule of Subcontractors
SECTION 00410
Rev 10/20/07 Section 00410 Page 2
BID BOND
KNOW ALL MEN BY THESE PRESENTS: that we, the undersigned
_ as Principal, and as Surety, are hereby held and firmly bound unto
the City of Fort Collins, Colorado, as OWNER, in the sum of $
for the payment of which, well and truly to be made, we hereby jointly
and severally bind ourselves, successors, and assigns.
THE CONDITION of this obligation is such that whereas the Principal
has submitted to the City of Fort Collins, Colorado the accompanying
Bid and hereby made a part hereof to enter into a Construction
Agreement for the construction of Fort Collins Project, 6115 Resource
Recovery Farm Outlet Pipe.
NOW THEREFORE,
(a) If said Bid shall be rejected, or
(b) If said Bid shall be accepted and the Principal shall execute and
deliver a Contract in the form of Contract attached hereto
(properly completed in accordance with said Bid) and shall
furnish a BOND for his faithful performance of said Contract, and
for payment of all persons performing labor or furnishing
materials in connection therewith, and shall in all other
respects perform the Agreement created by the acceptance of said
Bid, then this obligation shall be void; otherwise the same shall
remain in force and effect, it being expressly understood and
agreed that the liability of the Surety for any and all claims
hereunder shall, in no event, exceed the penal amount of this
obligation as herein stated.
The Surety, for value received, hereby stipulates and agrees that the
obligations of said Surety and its BOND shall be in no way impaired or
affected by any extension of the time within which the OWNER may
accept such Bid; and said Surety does hereby waive notice of any such
extension.
Surety Companies executing bonds must be authorized to transact
business in the State of Colorado and be accepted by the OWNER.
Rev 10/20/07 Section 00410 Page 3
IN WITNESS WHEREOF, the Principal and the Surety have hereunto set
their hands and seals this day of , 20__, and such
of them as are corporations have caused their corporate seals to be
hereto affixed and these presents to be signed by their proper
officers, the day and year first set forth above.
PRINCIPAL SURETY
Name:_____________________________ __________________________________
Address:__________________________ __________________________________
__________________________________ __________________________________
By:_______________________________ By: ______________________________
Title: ___________________________ Title:____________________________
ATTEST:
By:_______________________________
(SEAL) (SEAL)
Rev 10/20/07 Section 00420 Page 1
SECTION 00420
STATEMENT OF BIDDER'S QUALIFICATIONS
All questions must be answered and the data given must be clear and
comprehensive. This statement must be notarized. If necessary,
questions may be answered on separate attached sheets. The Bidder may
submit any additional information he desires.
1. Name of Bidder: _________________________________________________
2. Permanent main office address: __________________________________
3. When organized: _________________________________________________
4. If a corporation, where incorporated: ___________________________
5. How many years have you been engaged in the contracting business
under your present firm or trade name?___________________________
6. Contracts on hand: (Schedule these, showing the amount of each
contract and the appropriate anticipated dates of completion.)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
7. General character of Work performed by your company:
_________________________________________________________________
_________________________________________________________________
8. Have you ever failed to complete any Work awarded to you?________
If so, where and why?____________________________________________
_________________________________________________________________
9. Have your ever defaulted on a contract?__________________________
If so, where and why?____________________________________________
_________________________________________________________________
10. Are you debarred by any government agency? ______________________
If yes list agency name._________________________________________
Rev 10/20/07 Section 00420 Page 2
11. List the more important projects recently completed by your
company, stating the approximate cost of each, and the month and year
completed, location and type of construction.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
12. List your major equipment available for this contract.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
13. Experience in construction Work similar in importance to this
project:
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
14. Background and experience of the principal members of your
organization, including officers:
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
15. Credit available: $______________________________________________
16. Bank reference:__________________________________________________
17. Will you, upon request, fill out a detailed financial statement
and furnish any other information that may be required by the
OWNER?
_________________________________________________________________
18. Are you licensed as a General CONTRACTOR?________________________
If yes, in what city, county and state? _____________________
What class, license and numbers?________________________________
19. Do you anticipate subcontracting Work under this Contract?_______
If yes, what percent of total contract?__________________________
and to whom?_____________________________________________________
20. Are any lawsuits pending against you or your firm at this
time?__________
IF yes, DETAIL___________________________________________________
_________________________________________________________________
Rev 10/20/07 Section 00420 Page 3
21. What are the limits of your public liability? DETAIL
_________________________________________________________________
What company?____________________________________________________
22. What are your company's bonding limitations?
23. The undersigned hereby authorizes and requests any person, firm
or corporation to furnish any information requested by the OWNER
in verification of the recital comprising this Statement of
Bidder's Qualifications.
Dated at ________________ this ______ day of __________________, 20__.
_____________________________________________
Name of Bidder
By:__________________________________________
Title:_______________________________________
State of________________________
)
County of_______________________
___________________________________being duly sworn deposes and says
that he is ______________________of_____________________________ and
name of organization)
that the answers to the foregoing questions and all statements therein
contained are true and correct.
Subscribed and sworn to before me this _______ day of____________,
20__.
___________________________________
Notary Public
___________________________________
___________________________________
My commission expires _____________________________.
Section 00430 Page 1
SECTION 00430
SCHEDULE OF SUBCONTRACTORS
List all subcontractors for the work items listed below and all
subcontractors performing over 15% of the contract.
ITEM SUBCONTRACTOR
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
______________________________ _______________________________
SECTION 00500
AGREEMENT FORMS
00510 Notice of Award
00520 Agreement
00530 Notice to Proceed
Section 00510
Page 1
SECTION 00510
NOTICE OF AWARD
Date:
TO:
PROJECT: 6115 Resource Recovery Farm Outlet Pipe
OWNER: CITY OF FORT COLLINS
(hereinafter referred to as "the OWNER")
You are hereby notified that your Bid dated , 20 for
the above project has been considered. You are the apparent successful
Bidder and have been awarded an Agreement for .
The Price of your Agreement is .
Three (3) copies of each of the proposed Contract Documents (except
Drawings) accompany this Notice of Award. Three (3) sets of the
Drawings will be delivered separately or otherwise made available to
you immediately.
You must comply with the following conditions precedent within fifteen
(15) days of the date of this Notice of Award, that is by ,
20 .
1. You must deliver to the OWNER three (3) fully executed
counterparts of the Agreement including all the Contract
Documents. Each of the Contract Documents must bear your
signature on the cover of the page.
2. You must deliver with the executed Agreement the Contract
Security (Bonds) as specified in the Instructions to Bidders,
General Conditions (Article 5.1) and Supplementary Conditions.
Failure to comply with these conditions within the time specified will
entitle OWNER to consider your Bid abandoned, to annul this Notice of
Award and to declare your Bid Security forfeited.
Within ten (10) days after you comply with those conditions, OWNER will
return to you one (1) fully-signed counterpart of the Agreement with
the Contract Documents attached.
City of Fort Collins
OWNER
By:________________________________________
James B. O’Neill, II, CPPO, FNIGP
Director of Purchasing & Risk
Management
Section 00520
Page 1
SECTION 00520
AGREEMENT
THIS AGREEMENT is dated as of the day of in the year of
20 and shall be effective on the date this AGREEMENT is signed by
the City.
The City of Fort Collins (hereinafter called OWNER) and
(hereinafter called CONTRACTOR)
OWNER and CONTRACTOR, in consideration of the mutual covenants
hereinafter set forth, agree as follows:
ARTICLE 1. WORK
CONTRACTOR shall complete all Work as specified or indicated in the
Contract Documents. The Project for which the Work under the Contract
Documents may be the whole or only a part is defined as the
construction of the 6115 Resource Recovery Farm Outlet Pipe and is
generally described in Section 01010.
ARTICLE 2. ENGINEER
The Project has been designed by Anderson Consulting Engineers, Inc.,
who is hereinafter called ENGINEER and who will assume all duties and
responsibilities and will have the rights and authority assigned to
ENGINEER in the Contract Documents in connection with completion of
the Work in accordance with the Contract Documents.
ARTICLE 3. CONTRACT TIMES
3.1 The Work shall be Substantially Complete within sixty (60)
calendar days after the date when the Contract Times commence to run
as provided in the General Conditions and completed and ready for
Final Payment and Acceptance in accordance with the General Conditions
within sixty seven (67) calendar days after the date when the Contract
Times commence to run.
3.2. Liquidated Damages. OWNER and CONTRACTOR recognize that
time is of the essence of this Agreement and that OWNER will suffer
financial loss if the Work is not completed within the times specified
in paragraph 3.1. above, plus any extensions thereof allowed in
accordance with Article 12 of the General Conditions.
They also recognize the delays, expenses and difficulties involved in
proving in a legal proceeding the actual loss suffered by OWNER if the
Work is not completed on time. Accordingly, instead of requiring any
such proof, OWNER and CONTRACTOR agree that as liquidated damages for
delay (but not as penalty) CONTRACTOR shall pay OWNER the amounts set
forth hereafter.
Section 00520
Page 2
1) Substantial Completion:
Seven Hundred Fifty Dollars ($750.00) for each calendar day
or fraction thereof that expires after the sixty (60)
calendar day period for Substantial Completion of the Work
until the Work is Substantially Complete.
2) Final Acceptance:
After Substantial Completion, Five Hundred Dollars
($500.00) for each calendar day or fraction thereof that
expires after the seven (7) calendar day period for Final
Payment and Acceptance until the Work is ready for Final
Payment and Acceptance.
ARTICLE 4. CONTRACT PRICE
4.1. OWNER shall pay CONTRACTOR for performance of the Work in
accordance with the Contract Documents in current funds as follows:
($ ), $ Dollars, in accordance with Section 00300, attached
and incorporated herein by this reference.
ARTICLE 5. PAYMENT PROCEDURES
CONTRACTOR shall submit Applications for Payment in accordance
with Article 14 of the General Conditions. Applications for Payment
will be processed by ENGINEER as provided in the General Conditions.
5.1. PROGRESS PAYMENTS. OWNER shall make progress payments on
account of the Contract Price on the basis of CONTRACTOR's Application
for Payment as recommended by ENGINEER, once each month during
construction as provided below. All progress payments will be on the
basis of the progress of the Work measured by the schedule of values
established in paragraph 2.6 of the General Conditions and in the case
of Unit Price Work based on the number of units completed, and in
accordance with the General Requirements concerning Unit Price Work.
5.1.1. Prior to Substantial Completion, progress payments will
be in the amount equal to the percentage indicated below, but, in each
case, less the aggregate of payments previously made and less such
amounts as ENGINEER shall determine, or OWNER may withhold, in
accordance with paragraph 14.7 of the General Conditions. 90% of the
value of Work completed until the Work has been 50% completed as
determined by ENGINEER, when the retainage equals 5% of the Contract
Price, and if the character and progress of the Work have been
satisfactory to OWNER and ENGINEER, OWNER on recommendation of
ENGINEER, may determine that as long as the character and progress of
the Work remain satisfactory to them, there will be no additional
retainage on account of Work completed in which case the remaining
progress payments prior to Substantial Completion will be in an amount
equal to 100% of the Work completed. 90% of materials and equipment
not incorporated in the Work (but delivered, suitably stored and
Section 00520
Page 3
accompanied by documentation satisfactory to OWNER as provided in
paragraph 14.2 of the General Conditions) may be included in the
application for payment.
5.1.2. Upon Substantial Completion payment will be made in an
amount sufficient to increase total payments to CONTRACTOR to 95% of
the Contract Price, less such amounts as ENGINEER shall determine or
OWNER may withhold in accordance with paragraph 14.7 of the General
Conditions or as provided by law.
5.2. FINAL PAYMENT. Upon Final Completion and Acceptance of the
Work in accordance with paragraph 14.13 of the General Conditions,
OWNER shall pay the remainder of the Contract Price as recommended by
ENGINEER as provided in said paragraph 14.13.
ARTICLE 6. CONTRACTOR'S REPRESENTATION
In order to induce OWNER to enter into this Agreement, CONTRACTOR
makes the following representations:
6.1. CONTRACTOR has familiarized himself with the nature and
extent of the Contract Documents, Work, site, locality, and with all
local conditions and Laws and Regulations that in any manner may
affect cost, progress, performance or furnishing of the Work.
6.2. CONTRACTOR has studied carefully all reports of
explorations and tests of subsurface conditions and drawings of
physical conditions which are identified in the Supplementary
Conditions as provided in paragraph 4.2 of the General Conditions.
6.3. CONTRACTOR has obtained and carefully studied (or assumes
responsibility for obtaining and carefully studying) all such
examinations, investigations, explorations, tests, reports, and
studies (in addition to or to supplement those referred to in
paragraph 6.2 above) which pertain to the subsurface or physical
condition at or contiguous to the site or otherwise may affect the
cost, progress, performance or furnishing of the Work as CONTRACTOR
considers necessary for the performance or furnishing of the Work at
the Contract Price, within the Contract Times and in accordance with
the other terms and conditions of the Contract Documents, including
specifically the provisions of paragraph 4.2 of the General
Conditions; and no additional examinations, investigations,
explorations, tests, reports, studies or similar information or data
are or will be required by CONTRACTOR for such purposes.
6.4. CONTRACTOR has reviewed and checked all information and
data shown or indicated on the Contract Documents with respect to
existing Underground Facilities at or contiguous to the site and
assumes responsibility for the accurate location of said Underground
Facilities. No additional examinations, investigations, explorations,
tests, reports, studies or similar information or data in respect of
Section 00520
Page 4
said Underground Facilities are or will be required by CONTRACTOR in
order to perform and furnish the Work at the Contract Price, within
the Contract Times and in accordance with the other terms and
conditions of the Contract Documents, including specifically the
provision of paragraph 4.3. of the General Conditions.
6.5. CONTRACTOR has correlated the results of all such
observations, examinations, investigations, tests, reports and data
with the terms and conditions of the Contract Documents.
6.6. CONTRACTOR has given ENGINEER written notice of all
conflicts, errors or discrepancies that he has discovered in the
Contract Documents and the written resolution thereof by ENGINEER is
acceptable to CONTRACTOR.
ARTICLE 7. CONTRACT DOCUMENTS
7.1 The Contract Documents which comprise the entire Agreement
between OWNER and CONTRACTOR concerning the Work consist of the
General Conditions, Supplementary Conditions, those items included in
the definition of “Contract Documents” in Article 1.10 of the General
Conditions, and such other items as are referenced in this Article 7,
all of which are incorporated herein by this reference.
7.2 Forms for use by CONTRACTOR in performing the Work and
related actions in carrying out the terms of this Agreement are deemed
Contract Documents and incorporated herein by this reference, and
include, but are not limited to, the following:
7.2.1 Certificate of Substantial Completion
7.2.2 Certificate of Final Acceptance
7.2.3 Lien Waiver Releases
7.2.4 Consent of Surety
7.2.5 Application for Exemption Certificate
7.2.6 Application for Payment
7.3 Drawings, consisting of a cover sheet and sheets numbered as
follows:
Sheet 1 Cover Sheet Index 1
Sheet 2 C1 Project Information Sheet
Sheet 3 C2 Plan and Profile
Sheet 4 C3 Erosion Control and Revegetation Plan
Sheet 5 C4 Detail Sheet Headwall Detail
Sheet 6 C5 Detail Sheet Miscellaneous Detail
The Contract Drawings shall be stamped "Final for Construction" and
dated. Any revisions made shall be clearly identified and dated.
7.4. Addenda Numbers to , inclusive.
Section 00520
Page 5
7.5. The Contract Documents also include all written amendments
and other documents amending, modifying, or supplementing the Contract
Documents pursuant to paragraphs 3.5 and 3.6 of the General
Conditions.
7.6. There are no Contract Documents other than those listed or
incorporated by reference in this Article 7. The Contract Documents
may only be amended, modified or supplemented as provided in
paragraphs 3.5 and 3.6 of the General Conditions.
ARTICLE 8. MISCELLANEOUS
8.1. Terms used in this Agreement which are defined in Article I
of the General Conditions shall have the meanings indicated in the
General Conditions.
8.2. No assignment by a party hereto of any rights under or
interests in the Contract Documents will be binding on another party
hereto without the written consent of the party sought to be bound;
and specifically but not without limitations, moneys that may become
due and moneys that are due may not be assigned without such consent
(except to the extent that the effect of this restriction may be
limited by law), and unless specifically stated to the contrary in any
written consent to an assignment no assignment will release or
discharge that assignor from any duty or responsibility under the
Contract Document.
8.3. OWNER and CONTRACTOR each binds itself, its partners,
successors, assigns and legal representatives to the other party
hereto, its partners, successors, assigns and legal representatives in
respect to all covenants, Agreement and obligations contained in the
Contract Document.
Section 00520
Page 6
OWNER: CITY OF FORT COLLINS CONTRACTOR:
By: ____________________________ By:_____________________________
JAMES B. O’NEILL II, CPPO, FNIGP
DIRECTOR OF PURCHASING ________________________________
AND RISK MANAGEMENT
Title:__________________________
Date:___________________________ Date:___________________________
(CORPORATE SEAL)
Attest: ________________________ Attest:_________________________
City Clerk
Address for giving notices: Address for giving notices:
P. O. Box 580 ________________________________
Fort Collins, CO 80522 ________________________________
LICENSE NO.:____________________
Approved as to Form
_______________________________
Assistant City Attorney
Section 00530 Page 1
SECTION 00530
NOTICE TO PROCEED
Description of Work: 6115 Resource Recovery Farm Outlet Pipe
To:
This notice is to advise you:
That the contract covering the above described Work has been fully
executed by the CONTRACTOR and the OWNER.
That the required CONTRACTOR's Performance Bond and Payment Bond have
been received by the OWNER.
That the OWNER has approved the said Contract Documents.
Therefore, as the CONTRACTOR for the above described Work, you are
hereby authorized and directed to proceed within ( )
calendar days from receipt of this notice as required by the
Agreement.
Dated this day of , 20__.
The dates for Substantial Completion and Final Acceptance shall be
_____ _____, 20_ and , 20__, respectively.
City of Fort Collins
OWNER
By:
Title:
ACKNOWLEDGMENT OF NOTICE
Receipt of the above Notice to Proceed is hereby acknowledged this
day of , 20__.
CONTRACTOR:
By:
Title:
SECTION 00600
BONDS AND CERTIFICATES
00610 Performance Bond
00615 Payment Bond
00630 Certificate of Insurance
00635 Certificate of Substantial Completion
00640 Certificate of Final Acceptance
00650 Lien Waiver Release (CONTRACTOR)
00660 Consent of Surety
00670 Application for Exemption Certificate
Rev 10/20/07 Section 00610 Page
1
SECTION 00610
PERFORMANCE BOND
Bond No.
KNOW ALL MEN BY THESE PRESENTS: that
(Firm)
(Address)
(an Individual), (a Partnership), (a Corporation), hereinafter
referred to as the "Principal" and
(Firm)
(Address)
hereinafter referred to as "the Surety", are held and firmly bound
unto City of Fort Collins, 300 Laporte Ave, Fort Collins, Colorado
80522 a (Municipal Corporation) hereinafter referred to as the
"OWNER", in the penal sum of
____________ in lawful money of the United States, for the payment of
which sum well and truly to be made, we bind ourselves, successors and
assigns, jointly and severally, firmly by these presents.
THE CONDITIONS OF THIS OBLIGATION are such that whereas the Principal
entered into a certain Agreement with the OWNER, dated the day of
__________, 20__, a copy of which is hereto attached and made a part
hereof for the performance of The City of Fort Collins project, 6115
Resource Recovery Farm Outlet Pipe.
NOW, THEREFORE, if the Principal shall well, truly and faithfully
perform its duties, all the undertakings, covenants, terms, conditions
and agreements of said Agreement during the original term thereof, and
any extensions thereof which may be granted by the OWNER, with or
without Notice to the Surety and during the life of the guaranty
period, and if the Principal shall satisfy all claims and demands
incurred under such Agreement, and shall fully indemnify and save
harmless the OWNER from all cost and damages which it may suffer by
reason of failure to do so, and shall reimburse and repay the OWNER
all outlay and expense which the OWNER may incur in making good any
default then this obligation shall be void; otherwise to remain in
full force and effect.
Rev 10/20/07 Section 00610 Page 2
PROVIDED, FURTHER, that the said Surety, for value received, hereby
stipulates and agrees that no change, extension of time, alteration or
addition to the terms of the Agreement or to the Work to be performed
thereunder or the Specifications accompanying the same shall in any
way affect its obligation on this bond; and it does hereby waive
notice of any such change, extension of time, alteration or addition
to the terms of the Agreement or to the Work or to the Specifications.
PROVIDED, FURTHER, that no final settlement between the OWNER and the
CONTRACTOR shall abridge the right of any beneficiary hereunder, whose
claim may be unsatisfied.
PROVIDED, FURTHER, that the Surety Company must be authorized to
transact business in the State of Colorado and be acceptable to the
OWNER.
IN WITNESS WHEREOF, this instrument is executed in three (3)
counterparts, each one of which shall be deemed an original, this __
day of _________, 20__.
IN PRESENCE OF: Principal
______________________________ ______________________________________
______________________________ ______________________________________
(Title)
______________________________________
(Address)
(Corporate Seal)
IN PRESENCE OF: Other Partners
_____________________________ By:___________________________________
_____________________________ By:___________________________________
IN PRESENCE OF: Surety
_____________________________ By:___________________________________
_____________________________ By:___________________________________
(Address)
(Surety Seal)
NOTE: Date of Bond must not be prior to date of Agreement.
If CONTRACTOR is Partnership, all partners should execute Bond.
Rev 10/20/07 Section 00615 Page 1
SECTION 00615
PAYMENT BOND
Bond No.
KNOW ALL MEN BY THESE PRESENTS: that
(Firm)
(Address)
(an Individual), (a Partnership), (a Corporation), hereinafter
referred to as the "Principal" and
(Firm)
(Address)
hereinafter referred to as "the Surety", are held and firmly bound
unto the City of Fort Collins, 300 Laporte Ave., Fort Collins,
Colorado 80522 a (Municipal Corporation) hereinafter referred to as
"the OWNER", in the penal sum of $
in lawful money of the United States, for the payment of which sum
well and truly to be made, we bind ourselves, successors and assigns,
jointly and severally, firmly by these presents.
THE CONDITIONS OF THIS OBLIGATION are such that whereas the Principal
entered into a certain Agreement with the OWNER, dated the day of
, 20__, a copy of which is hereto attached and made a part hereof for
the performance of The City of Fort Collins project, 6115 Resource
Recovery Farm Outlet Pipe.
NOW, THEREFORE, if the Principal shall make payment to all persons,
firms, subcontractors, and corporations furnishing materials for or
performing labor in the prosecution of the Work provided for in such
Agreement and any authorized extension or modification thereof,
including all amounts due for materials, lubricants, repairs on
machinery, equipment and tools, consumed, rented or used in connection
with the construction of such Work, and all insurance premiums on said
Work, and for all labor, performed in such Work whether by
subcontractor or otherwise, then this obligation shall be void;
otherwise to remain in full force and effect.
Rev 10/20/07 Section 00615 Page 2
PROVIDED, FURTHER, that the said Surety, for value received, hereby
stipulates and agrees that no change, extension of time, alteration or
addition to the terms of the Agreement or to the Work to be performed
thereunder or the Specifications accompanying the same shall in any
way affect its obligation on this bond; and it does hereby waive
notice of any such change, extension of time, alteration or addition
to the terms of the Agreement or to the Work or to the Specifications.
PROVIDED, FURTHER, that no final settlement between the OWNER and the
CONTRACTOR shall abridge the right of any beneficiary hereunder, whose
claim may be unsatisfied.
PROVIDED, FURTHER, that the Surety Company must be authorized to
transact business in the State of Colorado and be acceptable to the
OWNER.
IN WITNESS WHEREOF, this instrument is executed in three (3)
counterparts, each one of which shall be deemed an original, this __
day of , 20__.
IN PRESENCE OF: Principal
______________________________ By:___________________________________
______________________________ ______________________________________
(Title)
______________________________________
(Address)
(Corporate Seal)
IN PRESENCE OF: Other Partners
______________________________ ______________________________________
______________________________ ______________________________________
IN PRESENCE OF: Surety
______________________________ By:___________________________________
______________________________ By:___________________________________
(Address)
(Surety Seal)
NOTE: Date of Bond must not be prior to date of Agreement.
If CONTRACTOR is Partnership, all partners should execute Bond.
Rev 10/20/07 Section 00630
Page 1
SECTION 00630
CERTIFICATE OF INSURANCE
CONTRACTOR shall insert his own standard form for Certificate of
Insurance.
Rev 10/20/07 Section 00635 Page 1
SECTION 00635
CERTIFICATE OF SUBSTANTIAL COMPLETION
TO: CITY OF FORT COLLINS
(OWNER)
DATE OF SUBSTANTIAL COMPLETION: PROJECT TITLE:6115 Resource Recovery
Farm Outlet Pipe
_____________________________
PROJECT OR SPECIFIED PART SHALL LOCATION: Fort Collins, Colorado
INCLUDE:
OWNER: City of Fort Collins
____________________________
____________________________ CONTRACTOR:
____________________________
____________________________
CONTRACT
DATE:____________________________
The Work performed under this contract has been inspected by
authorized representatives of the OWNER, CONTRACTOR, and the ENGINEER
and the project (or specified part of the project, as indicated above)
is hereby declared to be substantially completed on the above date.
A tentative list of items to be completed or corrected is appended
hereto. This list may not be exhaustive, and the failure to include
an item on it does not alter the responsibility of the CONTRACTOR to
complete all the Work in accordance with the Contract Documents.
_________________________________ ________________________________
ENGINEER
AUTHORIZED REPRESENTATIVE
DATE
The CONTRACTOR accepts the above Certificate of Substantial Completion
and agrees to complete and correct the items on the tentative list
within the time indicated.
________________________________ By: ________________________________
CONTRACTOR AUTHORIZED REPRESENTATIVE DATE
The OWNER accepts the project or specified area of the project as
substantially complete and will assume full possession of the project
or specified area of the project at 12:01 a.m., on . The
responsibility for heat, utilities, security, and insurance under the
Contract Documents shall be as set forth under "Remarks" below.
CITY OF FORT COLLINS, COLORADO By: ________________________________
OWNER AUTHORIZED REPRESENTATIVE DATE
REMARKS:
Rev 10/20/07 Section 00640 Page 1
SECTION 00640
CERTIFICATE OF FINAL ACCEPTANCE
, 20__
TO:
Gentlemen:
You are hereby notified that on the day of , 20__, the
City of Fort Collins, Colorado, has accepted the Work completed by
for the City of Fort Collins project, 6115 Resource Recovery Farm
Outlet Pipe.
A check is attached hereto in the amount of
$_______________________________ as Final Payment for all Work done,
subject to the terms of the Contract Documents which are dated
_____________ __, 20__.
In conformance with the Contract Documents for this project, your
obligations and guarantees will continue for the specified time from
the following date:____________ __, 20__.
Sincerely,
OWNER: City of Fort Collins
By:
Title:
ATTEST:
Title:
Rev 10/20/07 Section 00650 Page 1
SECTION 00650
LIEN WAIVER RELEASE
(CONTRACTOR)
TO: City of Fort Collins, Colorado (OWNER)
FROM: (CONTRACTOR)
PROJECT:6115 Resource Recovery Farm Outlet Pipe
1. The CONTRACTOR acknowledges having received payment, except
retainage from the OWNER for all work, labor, skill and material
furnished, delivered and performed by the CONTRACTOR for the
OWNER or for anyone in the construction, design, improvement,
alteration, addition or repair of the above described project.
2. In consideration of such payment and other good and valuable
consideration, the receipt and adequacy of which are hereby
acknowledged, the CONTRACTOR voluntarily waives all rights,
claims and liens, including but not limited to, mechanic's liens,
Miller Act claims (40 U.S.C.A. 270 a and b), stop notices,
equitable liens and labor and material bond rights which the
CONTRACTOR may now or may afterward have, claim or assert for all
and any work, labor, skill or materials furnished, delivered or
performed for the construction, design, improvement, alteration,
addition or repair of the above described project, against the
OWNER or its officers, agents, employees or assigns, against any
fund of or in the possession or control of the OWNER, against the
project or against all land and the buildings on and
appurtenances to the land improved by the project.
3. The CONTRACTOR affirms that all work, labor and materials,
furnished, delivered or performed to or for the construction,
design, improvement, alteration, addition or repair of the
project were furnished, delivered or performed by the CONTRACTOR
or its agents, employees, and servants, or by and through the
CONTRACTOR by various Subcontractors or materialmen or their
agents, employees and servants and further affirms the same have
been paid in full and have released in full any and all existing
or possible future mechanic's liens or rights or claims against
the project or any funds in the OWNER'S possession or control
concerning the project or against the OWNER or its officers,
agents, employees or assigns arising out of the project.
4. The CONTRACTOR agrees to defend and hold harmless the OWNER, the
lender, if any, and the Surety on the project against and from
any claim hereinafter made by the CONTRACTOR'S Subcontractors,
materialmen, employees, servants, agents or assigns against the
project or against the OWNER or its officers, employees, agents
Rev 10/20/07 Section 00650 Page 2
or assigns arising out of the project for all loss, damage and
costs, including reasonable attorneys fees, incurred as a result
of such claims.
5. The parties acknowledge that the description of the project set
forth above constitutes and adequate description of the property
and improvements to which this Lien Waiver Release pertains. It
is further acknowledged that this Lien Waiver Release is for the
benefit of and may be relied upon by the OWNER, the lender, if
any, and Surety on any labor and material bonds for the project.
Signed this day of , 20__.
CONTRACTOR
By:
Title:
ATTEST:
Secretary
STATE OF COLORADO )
)ss.
COUNTY OF LARIMER )
Subscribed and sworn to before me this day of
20__, by
Witness my hand and official seal.
My Commission Expires: .
Notary Public
Rev 10/20/07 Section 00660 Page 1
SECTION 00660
CONSENT OF SURETY
TO: City of Fort Collins, Colorado
(hereinafter referred to as the "OWNER")
CONTRACTOR:_________________________________
PROJECT: 6115 Resource Recovery Farm Outlet Pipe
CONTRACT DATE:
In accordance with the provisions of the Contract between the OWNER
and the CONTRACTOR as indicated above, for
(Surety)
on bond of
hereby approves of the Final Payment to the CONTRACTOR, and agrees
that Final Payment to the CONTRACTOR shall not relieve the Surety
Company of any of its obligations to the OWNER, as set forth in the
said Surety Company's Bond.
IN WITNESS WHEREOF, the Surety Company has hereunto set its hand this
day of , ____ .
(Surety Company)
By
ATTACH: Power of Attorney and Certificate of Authority of
Attorney(s)-in-Fact.
Section 00670 Page 1
SECTION 00670
Section 00670 Page 2
DR 0172 (12/98)
COLORADO DEPARTMENT OF REVENUE
DENVER CO 80261
(303) 232-2416
DO NOT WRITE IN THIS SPACE
The exemption certificate for which you are applying must be used only for the purpose of purchasing construction and building materials
for the exempt project described below. This exemption does not include or apply to the purchase or rental of equipment, supplies, and
materials which are purchased, rented, or consumed by the contractor and which do not become part of the structure, highway, road,
street, or other public works owned and used by the exempt organization.
Any unauthorized use of the exemption certificate will result in revocation of your exemption certificate and other penalties provided by
law.
A separate certificate is required for each contract.
Subcontractors will not be issued Certificates of Exemption by the Department of Revenue. It is the responsibility of the prime contractor
to issue certificates to each of the subcontractors. (See reverse side).
FAILURE TO ACCURATELY COMPLETE ALL BOXES WILL CAUSE THE APPLICATION TO BE DENIED.
Registration/Account No. (to be assigned by DOR)
89 -
Period
0170-750 (999) $0.00
CONTRACTOR INFORMATION
Trade name/DBA: Owner, partner, or corporate name:
Mailing address (City, State, Zip): Contact Person
E-Mail address: Federal Employer’s Identification Number: Bid amount for your contract:
$
Fax Number:
( )
Business telephone number:
( )
Colorado withholding tax account number:
EXEMPTION INFORMATION
Copies of contract or agreement pages (1) identifying the contracting parties
and (2) containing signatures of contracting parties must be attached.
Name of exempt organization (as shown on contract):
Exempt organization’s number:
98 -
Address of exempt organization (City, State, Zip):
Principal contact at exempt organization: Principal contact’s telephone number:
Physical location of project site (give actual address when applicable and Cities and/or County (ies) where project is located)
Scheduled
construction start date:
Month Day Year Estimated
completion date:
Month Day Year
I declare under penalty of perjury in the second degree that the statements made in this application are
true and complete to the best of my knowledge.
Signature of owner, partner or corporate officer: Title of corporate officer: Date:
DO NOT WRITE BELOW THIS LINE
CONTRACTOR APPLICATION
FOR
EXEMPTION CERTIFICATE
Pursuant to Statute
Section 39-26.114(1)(a)(XIX)
6
Section 00670 Page 3
Special Notice
Contractors who have completed this application in the past, please note the following changes in
procedure:
The Department will no longer issue individual Certificates of exemption to subcontractors. Only prime
contractors will receive a Contractor’s Exemption Certificate on exempt projects.
Upon receipt of the Certificate, the prime contractor should make a copy for each subcontractor involved in
the project and complete it by filling in the subcontractor’s name and address and signing it.
The original Certificate should always be retained by the prime contractor. Copies of all Certificates that
the prime contractor issued to subcontractors should be kept at the prime contractor’s place of business
for a minimum of three years and be available for inspection in the event of an audit.
Once an 89# has been assigned to you, please use the next five numbers following it for any applications
submitted for future projects. This should be your permanent number. For instance, if you were assigned
89-12345-0001, every application submitted thereafter should contain 89-12345 on the application. The
succeeding numbers will be issued by the Department of Revenue. DO NOT enter what you believe to be
the next in sequence as this may delay processing of your application.
Section 00670 Page 4
SECTION 00700
GENERAL CONDITIONS
SECTION 00800
SUPPLEMENTARY CONDITIONS
Rev 10/20/07 Section 00800 Page 2
SECTION 00800
SUPPLEMENTARY CONDITIONS
Conditions of the Contract
These Supplementary Conditions amend or supplement the General Conditions of the
Construction Contract (EJCDC General Conditions 1910-8, 1990 edition with City of Fort Collins
modifications) and other provisions of the Contract Documents as indicated below.
SC-4.2 Subsurface and Physical Conditions:
A. 4.2.1.2.1 No drawing of physical conditions in or relating to existing surface
or subsurface structures (except Underground Facilities referred to in Paragraph
4.3) which are at or contiguous to the site have been utilized by the Engineer in
preparation of the Contract Documents, except the following:
None
SC-5.4.7 Additional Insureds
A. The City of Fort Collins and Anderson Consulting Engineers, Inc., shall be
included as additionally insured on the Certificate of Insurance.
SC-5.4.8 Limits of Liability
A. Add the following language at the end of paragraph 5.4.8.
The limits of liability for the insurance required by the paragraph numbers of the General
Conditions listed below are as follows:
5.4.1 and 5.4.2
Coverage A - Statutory Limits
Coverage B - $100,000/$100,000/$500,000
5.4.3 and 5.4.5 Commercial General Liability policy will have limits of $1,000,000
combined single limits (CSL). This policy will include coverage for Explosion, Collapse,
and Underground coverage unless waived by the Owner.
5.4.6 The Comprehensive Automobile Liability Insurance policy will have limits of
$1,000,000 combined single limits (CSL).
5.4.9 This policy will include completed operations coverage/product liability coverage
with limits of $1,000,000 combined single limits (CSL).
END OF SECTION
SECTION 00900
ADDENDA, MODIFICATIONS, AND PAYMENT
00950 Contract Change Order
00960 Application for Payment
Section 00950 Page 1
CHANGE ORDER NO.
PROJECT TITLE: 6115 RESOURCE RECOVERY FARM OUTLET PIPE
CONTRACTOR:
PROJECT NUMBER:
DESCRIPTION:
1. Reason for change:
2. Description of Change:
3. Change in Contract Cost:
4. Change in Contract Time:
ORIGINAL CONTRACT COST $ 0.00
TOTAL APPROVED CHANGE ORDER 0.00
TOTAL PENDING CHANGE ORDER 0.00
TOTAL THIS CHANGE ORDER 0.00
TOTAL % OF THIS CHANGE ORDER
TOTAL C.O.% OF ORIGNINAL CONTRACT
ADJUSTED CONTRACT COST $ 0.00
(Assuming all change orders approved)
ACCEPTED BY: DATE:
Contractor's Representative
ACCEPTED BY: DATE:
Project Manager
REVIEWED BY: DATE:
Title:
APPROVED BY: DATE:
Title:
APPROVED BY: DATE:
Purchasing Agent over $15,000
cc: City Clerk Project File Engineer
Contractor Architect Purchasing
Rev 10/20/07 Section 00960 Page 1
SECTION 00960
APPLICATION FOR PAYMENT
In accordance with attached page.
Rev 10/20/07
DIVISION 1 - GENERAL REQUIREMENTS
01010 Summary of Work 01010-1 – 01010-4
01140 Contractor’s Use of Premises 01140-1 – 01140-2
01145 Special Project Procedures 01145-1 – 01145-2
01180 Utility Sources 01180-1 – 01180-2
01270 Measurement and Payment 01270-1 – 01270-8
01310 Project Meetings 01310-1 – 01310-2
01320 Construction Schedules 01320-1 – 01320-2
01330 Submittals 01330-1 – 01330-6
01425 Standard References 01425-1 – 01425-4
01450 Materials Testing 01450-1 – 01450-2
01555 Traffic Regulation 01555-1 – 01555-2
01635 Substitutions and Product Options 01635-1 – 01635-4
01650 Material Delivery, Storage, and Handling 01650-1 – 01650-2
01710 Site Conditions 01710-1 – 01710-4
01715 Tree, Landscape, Vegetation, and Wetland Protection 01715-1 – 01715-2
01720 Field Engineering and Surveying 01720-1
01745 Environmental Controls 01745-1 – 01745-4
01780 Contract Close-Out 01780-1 – 01780-2
DIVISION 2 - SITE WORK
02230 Clearing and Grubbing 02230-1 – 02230-2
02235 Top Soil 02235-1 – 02235-2
02240 Water Control and Dewatering 02240-1 – 02240-4
02315 Excavation and Embankment 02315-1 – 02315-6
02320 Trench Excavation and Backfill 02320-1 – 02320-8
02370 Erosion and Sediment Control 02370-1 – 02370-6
02375 Riprap And Bedding 02375-1 - 02375-6
02610 Reinforced Concrete Pipe 02610-1 – 02610-9
02635 Manhole Structures 02635-1 – 02635-6
02920 Grasses 02920-1 – 02920-10
02921 Ground Preparation for Seeding 02921-1 – 02921-2
DIVISION 3 - CONCRETE
03110 Structural Cast-in-Place Concrete Forms 03110-1 – 03110-10
03210 Reinforcing Steel 03210-1 – 03210-6
03310 Structural Concrete 03310-1 – 03310-10
03320 Construction Joints 03320-1 – 03320-2
03350 Concrete Finishing 03350-1 – 03350-8
03390 Concrete Curing 03390-1 – 03390-4
03615 Grout 03615-1 – 03615-4
DIVISION 5 - METALS
05500 Metal Fabrications 05500-1 – 05500-6
DIVISION 7 - THERMAL AND MOISTURE PROTECTION
07905 Joint Sealers for Pre-cast Concrete Manholes 07905-1 – 07905-2
DIVISION 1 - GENERAL REQUIREMENTS
SECTION 01010 SUMMARY OF WORK
SECTION 01140 CONTRACTOR’S USE OF PREMISES
SECTION 01145 SPECIAL PROJECT PROCEDURES
SECTION 01180 UTILITY SOURCES
SECTION 01270 MEASUREMENT AND PAYMENT
SECTION 01310 PROJECT MEETINGS
SECTION 01320 CONSTRUCTION SCHEDULES
SECTION 01330 SUBMITTALS
SECTION 01425 STANDARD REFERENCES
SECTION 01450 MATERIALS TESTING
SECTION 01555 TRAFFIC REGULATION
SECTION 01635 SUBSTITUTIONS AND PRODUCT
OPTIONS
SECTION 01650 MATERIAL DELIVERY, STORAGE,
AND HANDLING
SECTION 01710 SITE CONDITIONS
SECTION 01715 TREE, LANDSCAPE, VEGETATION,
AND WETLAND PROTECTION
SECTION 01720 FIELD ENGINEERING AND
SURVEYING
SECTION 01745 ENVIRONMENTAL CONTROLS
SECTION 01780 CONTRACT CLOSEOUT
RRF Outlet Pipe 01010-1 Summary of Work
SECTION 01010
SUMMARY OF WORK
PART 1 GENERAL
1.01 SECTION INCLUDES
Furnish all labor and install all materials for the rehabilitation of the Resource Recovery
Farm Outlet Pipe, including but not limited to the following items:
The project includes the installation of 700 linear feet of 24-inch RCP, concrete
manholes, concrete headwalls with slidegates, a sand cutoff wall, sanitary sewer pipe
encasement, and rock riprap.
.
1.02 WORK SEQUENCE
A. The Work Sequence is to be submitted as part of the construction schedule required
in Section 01320. Construction of the project shall begin within seven (7) calendar
days of the date of Notice to Proceed.
The date of beginning and the time for completion of the work are essential
conditions of the Contract Documents and the work embraced shall be commenced
on a date specified in the Notice to Proceed.
The Contractor will proceed with the work at such rate of progress to ensure full
completion within the contract time. It is expressly understood and agreed, by and
between the Contractor and the Owner that the contract time for the completion of
the work described herein is a reasonable time, taking into consideration the climatic
and other factors prevailing in the locality of the work.
Every effort shall be made by the Contractor to complete the project within the
"Contract Time" shown in the proposal. The "Contract Time" anticipates "Normal"
weather and climate conditions in and around the vicinity of the Project site during
the times of year that the construction will be carried out. Extensions of time based
upon weather conditions shall be granted only if the Contractor demonstrates clearly
that such conditions were "unusually severe," would not have been reasonably
anticipated, and that such conditions adversely affected the Contractor’s work and
thus required additional time to complete the work.
The following specifies the procedure for the determination of time extensions for
unusually severe weather. The listing below defines the anticipated number of
calendar days lost to adverse weather for each month and is based upon National
Oceanic and Atmospheric Administration (NOAA) or similar data for the geographic
location of the project.
Monthly Anticipated Calendar Days Lost to Adverse Weather Conditions
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
(7) (4) (4) (4) (6) (3) (4) (2) (3) (3) (2) (5)
RRF Outlet Pipe 01010-2 Summary of Work
The above schedule of anticipated adverse weather will constitute the base line for
monthly (or portion thereof) weather time evaluations. Upon acknowledgment of the
Notice to Proceed and continuing throughout the contract on a monthly basis, actual
adverse weather days and the impact of adverse weather days that delay the work
will be recorded on a day-to-day basis. It is assumed that the work will be carried
out Mondays through Fridays (holidays excepted) unless an approved construction
schedule or written authorization from the Owner indicates otherwise. The number
of days of delayed work due to adverse weather or the impact thereof will then be
compared to the monthly adverse weather schedule above.
An actual adverse weather day must prevent work for 50 percent or more of the
Contractor’s workday, delay work critical to the timely completion of the project,
and be documented by the Contractor. The City Representative observing the
construction shall determine on a daily basis whether or not work can proceed or if
work is delayed due to adverse weather or the effects thereof. The Contractor shall
notify the Engineer in writing of any disagreement as to whether or not work can
proceed on a given date, within 2 calendar days of that date. The Owner will use the
above written notification in determining the number of working days for which
work was delayed during each month.
At the end of each month, if the number of working days for which work was
delayed due to adverse weather exceeds that shown in the above schedule, a Change
Order will be executed which increases the Contract Time. The number of work
days delayed due to adverse weather or the impact thereof will then be converted to
Calendar Days based on the contract completion day and date. This conversion
assumes a 5-day work week, Mondays through Fridays, holidays excepted; should
the Contractor have authorization to work weekends and/or holidays, then the
method of conversion of workdays to calendar days would take this into
consideration. The contract time period will then be increased by the number of
calendar days calculated above and a new contract completion day and date will be
set.
The Contractor’s schedule must reflect the above-anticipated adverse weather delays
on all weather-dependent activities.
While extensions of time shall be granted for "unusually severe" weather or climate
conditions, the Owner shall make no monetary compensation for any costs to the
Contractor arising out of such delays. The Contractor shall comply with the portions
of the Contract Documents relating to his project schedule and amendments thereto
which result from the "unusually severe" weather condition.
Breakdowns in equipment or lack of performance by the Contractor will not be
considered justification for an extension of time. Liquidated damages will be
assessed as delineated elsewhere.
The Contractor shall not be charged with liquidated damages or any excess cost
when the delay in completion of the work is due to the following, and the Contractor
has promptly given written notice of such delay to the Owner or Engineer.
1. To any preference, priority, or allocation order duly issued by the Owner.
RRF Outlet Pipe 01010-3 Summary of Work
2. To unforeseeable causes beyond the control and without the fault or
negligence of the Contractor, including but not restricted to, acts of God, or
of the public enemy, acts of the Owner, acts of another Contractor in the
performance of a contract with the Owner, fires, floods, epidemics,
quarantine restrictions, strikes, freight embargoes, and abnormal and
unforeseeable weather as provided above.
3. To any delays of Subcontractors occasioned by any of the causes specified in
paragraphs 1 and 2, above.
Other than the conditions above, Contractor is permitted to start the work at any
location within the project site.
The Contractor shall adhere to the construction traffic control requirements
delineated in Section 01555 and on the Drawings.
1.03 UNDERGROUND UTILITIES
A. It shall be the responsibility of the CONTRACTOR to verify the existence and
location of all underground utilities along the route of the work and to coordinate the
construction schedules with these utility owners.
B. Known utilities and structures adjacent to or encountered in the work are shown on
the Drawings. The locations shown are taken from existing records and the best
information available from existing utility plans and from field potholing, however,
it is expected that there may be some discrepancies and omissions in the locations
and quantities of utilities and structures shown. Those shown are for the
convenience of the CONTRACTOR only, and no responsibility is assumed by either
the OWNER or the ENGINEER for their accuracy or completeness.
C. The CONTRACTOR shall field verify all utilities and coordinate construction with
utility owners prior to starting construction. The CONTRACTOR shall be
responsible for protecting utilities during construction and scheduling utility
adjustments to eliminate conflict with progress of the work.
D. The CONTRACTOR shall notify the ENGINEER immediately of any field condition
not consistent with the contract documents.
E. The CONTRACTOR will be responsible for repairing or paying for the repairs to
any damaged utilities.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01010-4 Summary of Work
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RRF Outlet Pipe 01140-1 Contractor’s Use of Premises
SECTION 01140
CONTRACTOR’S USE OF PREMISES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The CONTRACTOR may use the OWNER’s property designated within the
construction limits shown on the Drawings for equipment and materials as long as he
confines his operations to those permitted by local laws, ordinance and permits and
meets the following requirements:
1. Do not unreasonably encumber site with materials or equipment.
2. Assume full responsibility for protection and safekeeping of products stored
on premised.
3. Move any stored products which interfere with operations of the OWNER.
4. Obtain and pay for use of additional storage or work areas needed for
operations.
1.02 LIMITS OF CONSTRUCTION
A. The CONTRACTOR must maintain all of his construction activities within the
OWNER’s property and/or construction easements and limits of the project, or other
stated areas, unless permits and/or written permission are obtained by the
CONTRACTOR, from appropriate authorities or private property owners, outside of
these areas. Contractor to fence all easements and work areas. The temporary
permits must be secured and paid for by the CONTRACTOR at no extra cost to the
OWNER. Any temporary permits secured must be in writing and a copy of same
provided to the ENGINEER.
1.03 SECURITY
A. The CONTRACTOR shall at all times be responsible for the security of his facilities
and equipment. The OWNER will not take responsibility for missing or damaged
equipment, tools, or personal belongings of the CONTRACTOR.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01140-2 Contractor’s Use of Premises
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RRF Outlet Pipe 01145-1 Special Project Procedures
SECTION 01145
SPECIAL PROJECT PROCEDURES
PART 1 GENERAL (Not Applicable)
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION
3.01 CONSTRUCTION TRAFFIC CONTROL
A. The CONTRACTOR, with input and cooperation from the OWNER, will prepare the
construction traffic control plans and specifications for construction of the project.
The traffic control plan shall be submitted at least 7 days prior to the start of traffic
control activities. Any changes to the approved traffic control plan will need to be
submitted to the City of Fort Collins and/or the Larimer County Traffic Departments
at least 48 hours prior to instituting the proposed changes.
B. The CONTRACTOR shall provide to the City of Fort Collins and/or Larimer County
Traffic Departments a detailed construction schedule for the work, including
production rates, estimated closure times for streets and intersections, if any, and
material delivery and haul routes.
C. Section 01555 Traffic Regulation is provided as a guide to items of work the
CONTRACTOR will be responsible for, and that may not be specifically referenced
in the construction traffic control plan. Such items include providing access to fire
hydrants, access for emergency services, and provision of warning signs and lights
around the work zone, especially during non-work periods.
3.03 NATURAL AREAS
Due to the project being located entirely within a city designated Natural Area the
CONTRACTOR shall abide by the Natural Areas rules and regulations set forth by the City
of Fort Collins Natural Resources Department.
END OF SECTION
RRF Outlet Pipe 01145-2 Special Project Procedures
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RRF Outlet Pipe 01180-1 Utility Sources
SECTION 01180
UTILITY SOURCES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Names and telephone numbers of affected agencies and utilities in the area are listed
below for the CONTRACTOR’s convenience. The CONTRACTOR assumes all
responsibility of contacting these agencies and verification of telephone numbers.
1. Water
a. City of Fort Collins (970) 221-6700
b. Fort Collins – Loveland Water District (970) 226-3104
c. East Larimer Water District (970) 493-2044
2. Sanitary Sewer - City of Fort Collins (970) 221-6700
- Boxelder Sanitation District (970) 498-0604
- South Fort Collins Sanitation District (970) 226-3104
3. Stormwater - City of Fort Collins (970) 221-6700
Larimer County (970) 498-5700
4. Natural Resources – City of Fort Collins (970) 221-6600
5. Park Planning – City of Fort Collins (970) 221-6360
6. Electrical
a. City of Fort Collins (970) 224-6157
b. Platte River Power Authority (PRPA) (970) 226-4000
c. Western Area Power Administration (WAPA) (970) 461-7298
d. Poudre Valley Rural Electric Association (PVREA) (970) 226-1234
e. Public Service Company (PSC) / Xcel Energy (800) 895-1999
7. Engineering – City of Fort Collins (970) 221-6605
Larimer County (970) 498-5700
8. Traffic – City of Fort Collins (970) 224-6062
Larimer County (970) 498-5700
9. Gas - Xcel Energy (800) 895-2999
10. Telephone - Qwest (970) 222-2414
11. Cable TV - Comcast (970) 484-7166
12. One-Call Utility Locates 811
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
RRF Outlet Pipe 01180-2 Utility Sources
END OF SECTION
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RRF Outlet Pipe 01270-1 Measurement and Payment
SECTION 01270
MEASUREMENT AND PAYMENT
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The work performed under this Agreement shall be paid for on both a Unit Price basis
and Lump Sum basis for individual line items at the rates for the respective items on the
Bid Schedule. The quantities provided on the Bid Schedule are only estimates of the
actual quantities of the work to be performed, and are only included for purposes of
making the award and establishing a basis for estimating the probable cost of the Work.
The actual amounts of work performed and materials furnished for unit price bid items
may differ from the estimated quantities. The basis of payment for work and materials
bid as a unit price will be the actual amount of approved work done and materials
furnished.
Payment shall be made only for those items included in the Bid Schedule. All costs
incurred shall comply with the provisions of these Specifications and shall be included in
the unit price bid for the associated items in the Bid Schedule. Except as may be
otherwise stipulated, no material, labor or equipment will be furnished by the OWNER.
The quantity of work which will be considered for payment is the actual number of units
completed in accordance with all relative Specifications. This basis of measurement and
payment for each proposal item will be described below. The following provides a
general listing of contract bid items along with a brief summary of the work and
materials included, but not limited to, in the unit price or lump sum price for each bid
item. Refer to the Specifications and Drawings for additional information.
1.02 PAY ITEMS
1. Mobilization and Field Overhead
No unit measurement for payment will be made for any of the work, materials
and equipment required for mobilization and field overhead. This work consists
of the mobilization of personnel, equipment and supplies at the project site in
preparation for work on the project. This item shall include the establishment of
the CONTRACTOR’S offices, buildings and other necessary facilities, and all
other costs incurred or labor and operations which must be performed prior to
beginning the other items under the Contract. This item shall also include
temporary fencing around project work and driving areas, and any other
fencing/security items as deemed necessary by the CONTRACTOR. This item
also includes obtaining permits and CONTRACTOR testing. This item may also
include provision of required bonds, insurance and preparation of the project
schedule. The removal of the CONTRACTOR's equipment, supplies, excess
materials, and cleanup of the site are also included in this item.
Payment will be made as the work progresses. Fifty percent (50%) of the lump
sum bid price will be paid at the time of the first monthly progress payment. An
additional thirty percent (30%) will be paid when one-half the original contract
amount is earned. The remaining twenty percent (20%) will be paid upon final
acceptance of the project. The total amount for mobilization shall not exceed
five percent (5%) of the total bid.
RRF Outlet Pipe 01270-2 Measurement and Payment
Pay Item Pay Unit
Mobilization and Field Overhead LS
2. Traffic Control
No unit measurement for payment shall be made for any of the materials, work,
and equipment required. The payment shall be total compensation for all labor,
equipment, materials, maintenance, and all incidentals necessary to prepare,
implement, and maintain the approved Traffic Control Plan in accordance with
the Drawings and accepted Traffic Control Plan. The work also includes but is
not limited to the installation and maintenance of all required barricades and
signs.
Payment will be made as work progresses. Fifty percent (50%) of the lump sum
bid price will be paid when twenty five (25%) of the original contract amount
has been earned; an additional thirty percent (30%) will be paid when fifty
percent (50%) of the original contract amount has been earned; and the
remaining twenty percent (20%) will be paid upon final acceptance of the
project.
Pay Item Pay Unit
Traffic Control LS
3. Clearing and Grubbing
No measurement for payment shall be made for any of the materials, work, and
equipment required. Payment will be made as work progresses on a percentage
lump sum basis.
The payment shall be total compensation for all labor, equipment, materials,
maintenance, and all incidentals necessary to prepare, implement, and conduct
the clearing and grubbing, in accordance with the Drawings and Specifications,
including all costs associated with the disposing of materials off-site.
Pay Item Pay Unit
Clearing and Grubbing LS
4. Construction Dewatering
No unit measurement for payment will be made for this work. Work includes all
equipment, temporary power, labor and materials for implementation of
measures to control surface water and groundwater. Pay item also includes all
work necessary to obtain the required Stormwater Management Permit and the
Construction Dewatering Permit from the Colorado Department of Health. Also
RRF Outlet Pipe 01270-3 Measurement and Payment
included are all equipment, labor and materials for evaluation, design,
construction, and monitoring of dewatering.
Payment shall be made based on the percentage of all work completed at the time
of each Progress Payment.
Pay Item Pay Unit
Construction Dewatering LS
5. Construction Surveying and Staking
No unit measurement shall be made for this item. Work includes providing all
equipment, labor, and materials required to provide Construction Surveying for
construction of all work items for the project including: Staking of horizontal
and vertical alignments; overlot grading; subgrade elevations; off-sets;
temporary control points; re-establishment of land monuments; as-built
surveying; and, all appurtenant features of the work.
The lump sum price bid shall include all of the CONTRACTOR’s costs of
whatsoever nature to perform the Construction Surveying as required for the
construction of the Project in accordance with the Drawings and Specifications.
Payment shall be made based on the percentage of all work completed at the time
of each Progress Payment.
Pay Item Pay Unit
Construction Surveying LS
6. Remove, Stockpile, and Replace Existing Riprap on River Bank
The measurement for payment of the removal, stockpiling of the existing riprap
will be the total number of cubic yards of material removed and replaced. This
item shall include the removal of the existing riprap, bedding, and fabric,
stockpiling of the removed riprap, and the replacement of fabric, bedding, and
riprap to existing grades. The final location of the stockpile site will be at the
direction of the ENGINEER.
Pay Item Pay Unit
Remove, Stockpile, and Replace Existing Riprap on River Bank CY
7. Unclassified Excavation
8. Muck Excavation
9. Embankment (Complete In Place)
RRF Outlet Pipe 01270-4 Measurement and Payment
The measurement for payment of unclassified excavation will be the total
number of cubic yards of material excavated according to the final Drawings.
Unclassified excavation shall consist of excavation of all materials on the site to
final grades, excluding the bid items listed in Section 02220. Excavation of
unsuitable material will only be paid for if it is found to be unsuitable in its
original state. Unclassified excavation shall be measured from the drawings and
cross sections, and the plan quantity will be paid for by the cubic yard.
Muck excavation shall include excavation of unsuitable material and haul and
disposal of unsuitable material. Muck excavation shall also include the cost of
materials used to replace muck excavation. Muck excavation of material from
rain or weather damage will not be paid for and is entirely the
CONTRACTOR’S responsibility. This item will be measured in the field and
will be paid for by the cubic yard.
If unsuitable subgrade is encountered and the ENGINEER directs the
CONTRACTOR to overexcavate the material, the CONTRACTOR shall use
uniformly graded 1 1/2” rock. This item will be measured in the field and will
be paid by the cubic yard per ticket of material used.
Embankment (Complete In Place) shall include all excavated material, which is
placed as embankment and compacted to final grades as specified in Section
02315. This item shall include placement and compaction of excavated material
that has been determined as suitable from the on-site excavations. This item will
be measured from the drawings and cross sections and the plan quantity will be
paid for by the cubic yard.
Pay Item Pay Unit
Unclassified Excavation CY
Muck Excavation CY
Embankment (Complete In Place) CY
10. 24-Inch Reinforced Concrete Pipe
The measurement for payment of pipe will be the actual number of linear feet of
pipe installed, completed in place, measured along the center line of the pipe
from inside the face of manhole to inside face of manhole, from inside face of
manhole to given station, from given station to given station, or from center of
manhole to center of manhole with deductions made of the internal diameter or
dimensions of manholes or structures.
The unit price bid per linear foot of pipe shall include all of the
CONTRACTOR’s costs of whatsoever nature required for constructing the
specific pipeline. The price bid shall include: locating and protection of the
existing utilities in and along the pipe length; removing and disposing of existing
pipeline as required; furnishing, transporting, and installing all pipe and
materials; adjusting location of existing small utilities, and valves; tapping
and/or connecting to pipes or structures, and furnishing and installing fittings or
specials not otherwise provided for elsewhere in the Documents; and jointing
RRF Outlet Pipe 01270-5 Measurement and Payment
materials including: O-rings, gaskets, bolts, concrete collars, connecting bands
and other miscellaneous items as required to construct the specific pipeline;
excavation; constructing the specific bedding including the furnishing, placing,
and compacting of sand, gravel and rock, as required for bedding, protective
coatings or wrapping; pipe casings backfilling including the furnishing,
transporting, and placing; method of backfill and compaction as specified; trench
supporting; protection of aboveground and underground utilities and service
connections; disposal of debris, and damaged materials; testing; inspection; and,
all other related and necessary materials, work, and equipment required to
construct a complete operable pipeline in accordance with the Drawings and
Specifications.
Pay Item Pay Unit
24-inch RCP LF
11. 48-Inch Diameter Manhole
The measurement for payment for the construction of the specified manhole will
be the individual structure, complete, and in place.
The unit price bid per manhole shall include all of the CONTRACTOR’s costs
of whatsoever nature. The price bid shall include: furnishing, transporting, and
installing all materials; sheeting and/or bracing; concrete; reinforcement precast
cones or flattop; brick, mortar, plastic joint sealant and grout; manhole steps,
ring and cover; watertight manhole frame and bolted lid where required;
constructing and shaping of the base invert including all pipe incorporated within
the manhole; construction of required stub-outs and connections including pipe
and plugs; removal of all sod and other surfacing material outside of the
prescribed trench width; backfilling and compaction; furnishing and compacting
imported backfill material if no suitable on-site material is available; and, all
other related and necessary materials, work, and equipment required to install the
manhole complete in accordance with the Drawings and Specifications.
Pay Item Pay Unit
48-Inch Diameter Manhole EA
12. Sand Cutoff Wall
The measurement for payment of the sand cutoff wall will be the total number of
cubic yards of sand required to be placed as specified on the Drawings or as
otherwise directed by the Engineer.
The unit bid price shall include all of the CONTRACTOR’S costs of whatsoever
nature. The price bid shall include: excavation and backfill; furnishing and
placing sand for the cutoff wall; and all other necessary materials, work, and
equipment required to construct the cutoff wall in accordance with the Drawings
and Specifications.
RRF Outlet Pipe 01270-6 Measurement and Payment
Pay Item Pay Unit
Sand Cutoff Wall CY
13. Concrete Headwall and Slidegate
The measurement for payment for the construction of the specified structure will
be the individual structure, complete and in place.
The unit price bid per structure shall include all of the CONTRACTOR’s costs
of whatsoever nature. The unit price bid shall include: furnishing, transporting,
and installing all materials; sheeting and/or bracing; concrete; joint sealant and
grout; reinforcing; irrigation slidegate and rails; removal of all surfacing material
outside of the prescribed trench width; backfilling and compaction; furnishing
and compacting imported backfill material if no suitable on-site material is
available; and, all other related and necessary materials, work, and equipment
required to construct the structure complete in accordance with the Drawings and
Specifications and as implied by the Contract Documents.
Pay Item Pay Unit
Headwall and Slidegate for 24-inch Reinforced Concrete Pipe EA
14. Riprap (Class 9)
The measurement for payment of riprap will be the total number of cubic yards
of riprap required to be placed as specified on the Drawings or as otherwise
directed by the ENGINEER. Measurement does not include the thickness of the
bedding.
The unit price bid per cubic yard of riprap placed shall include all of the
CONTRACTOR’s costs of whatsoever nature. The item shall include:
furnishing, transporting, and placing all riprap; excavation, compaction,
backfilling, removal and disposal of excavations and debris; Type II bedding
material; geotextile fabric; compacted fill required to bury riprap; and all other
related and necessary materials, work, and equipment required to place the riprap
in accordance with the Drawings and Specifications.
Pay Item Pay Unit
Riprap (Class 12) CY
15. Miscellaneous Metals - Trash Racks
The measurement for payment for the construction of the specified trash racks
will be on a lump sum basis for the individual structures, complete, and in place.
The lump sum price bid per trash rack shall include all of the CONTRACTOR’s
costs of whatsoever nature. The price bid shall include: furnishing all materials
RRF Outlet Pipe 01270-7 Measurement and Payment
necessary to fabricate the trash racks; fabrication; coating; and, all other related
and necessary materials, work, and equipment required to install the trash racks
complete in accordance with the Drawings and Specifications.
Pay Item Pay Unit
Miscellaneous Metals - Trash Racks LS
16. Landscape - Ground Preparation and Seeding
Measurement for payment for ground preparation and seeding of the disturbed
areas of the project shall be based on acres or parts thereof which are seeded and
crimped with certified straw in accordance with the project specifications. The
acre unit cost shall include all of the CONTRACTOR’S costs including all labor,
materials and equipment needed to fine grade, drill seed, and crimp straw in
order to reseed all disturbed areas.
Payment for this item shall be made based on the actual quantity of work
complete at the time of each monthly progress payment.
Pay Item Pay Unit
Ground Preparation and Seeding ACRE
17. Erosion Control – Temporary Coffer Dam
No unit measurement for payment will be made for this work. Work includes all
equipment, labor and materials required for the construction and maintenance of
the coffer dam at the pipe outlet. Item includes removal of coffer dam at the
conclusion of work under this contract.
Measurement for payment for the construction of the coffer dam shall be the
entire coffer dam complete and in place.
Pay Item Pay Unit
Coffer Dam EA
18. Erosion Control - Silt Fence
The measurement for payment of silt fence will be the actual number of linear
feet of silt fence installed. The work includes all equipment, labor, materials,
maintenance, and all incidentals necessary to prepare, implement, maintain,
remove the silt fence upon completion of construction, repair and reseed ground
along fence line, in accordance with the Drawings.
Pay Item Pay Unit
Silt Fence LF
RRF Outlet Pipe 01270-8 Measurement and Payment
19. Erosion Control – Sediment Trap/In Channel BMP
The measurement for payment of the sediment trap will be on a unit basis.
Payment will be made for each trap furnished, placed, and maintained. The
work includes all equipment, labor, materials, maintenance and all incidentals
necessary to prepare, implement, maintain, and ultimately remove the trap in
accordance with the Drawings and Specifications.
Pay Item Pay Unit
Sediment Trap/In Channel BMP EA
END OF SECTION
RRF Outlet Pipe 01310-1 Project Meetings
SECTION 01310
PROJECT MEETINGS
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Pre-Construction Conference: A Pre-Construction Conference will be held after the
Notice of Award and before the Notice to Proceed.
The conference shall be attended by:
1. CONTRACTOR and CONTRACTOR’s Superintendent
2. CONTRACTOR’s and Subcontractors
3. ENGINEER
4. OWNER
5. Others as requested by the CONTRACTOR, OWNER, or ENGINEER.
Unless previously submitted to the OWNER, the CONTRACTOR shall bring to the
conference a tentative schedule of the construction project, including the scheduled
shop drawings and other submittals.
The purpose of the conference is to designate responsible personnel and establish a
working relationship. Matters requiring coordination will be discussed and
procedures for handling such matters established. The agenda will include:
1. CONTRACTOR’s tentative Schedule
2. Permit applications and submittals, including 404 Permit (to be obtained by
Owner), 402 Permit, Erosion and Sediment Control Plan, Stormwater
Management Plan (SWMP), and Traffic Control Plan
3. Transmittal, review and distribution of CONTRACTOR’s submittals
4. Processing applications for payment
5. Maintaining record documents
6. Critical work sequencing
7. Field decision and change orders
8. Use of premises, office and storage areas, staging area, security,
housekeeping, and OWNER’s needs
9. CONTRACTOR’s assignment of safety and first aid
RRF Outlet Pipe 01310-2 Project Meetings
B. Construction Progress Meetings: Progress meetings will be conducted weekly or at
some other frequency, if approved by the OWNER, ENGINEER and
CONTRACTOR. These meetings shall be attended by the OWNER, the
ENGINEER, the CONTRACTOR’s representative and any others invited by these
people.
The ENGINEER will conduct the meeting and the ENGINEER will arrange for
keeping the minutes and distributing the minutes to all persons in attendance.
The agenda of these project meetings will include construction progress, the status of
submittal reviews, the status of information requests, critical work sequencing,
review of strategies for connections into existing facilities, status of field orders and
change orders, and any general business.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01320-1 Construction Schedules
SECTION 01320
CONSTRUCTION SCHEDULES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Prepare detailed schedule of all construction operations and procurements to be reviewed
by parties attending the preconstruction conference.
The schedule shall be approved by the OWNER and ENGINEER prior to Notice to
Proceed.
1.02 FORMAT AND SUBMISSIONS
A. Prepare construction and procurement schedules in a graphic format suitable for
displaying scheduled and actual progress. The construction schedule shall clearly identify
the critical path for the project and shall also identify all critical procurement items.
B. Submit four (4) copies of each schedule to the OWNER and ENGINEER for review.
The ENGINEER will return one copy to the CONTRACTOR with revisions suggested or
necessary for coordination of the Work with the needs of the OWNER or others.
1.03 CONTENT
A. Construction Progress Schedule
1. Show the complete work sequence of construction by activity and location.
2. Show the dates for the beginning and completion of major task items. At a
minimum, show the following items:
• Removal of vegetation.
• Installation of the outlet pipe and headwalls.
• Replacement of riprap on river bank
• Revegetation
3. Show projected percentage of completion for each item as of the first day of the
month.
B. Report of delivery of equipment and materials.
1. Show delivery status of critical and major items of equipment and materials.
RRF Outlet Pipe 01320-2 Construction Schedules
2. Include a schedule which includes the critical path for Shop Drawings, tests, and
other submittal requirements for equipment and materials.
1.04 PROGRESS REVISIONS
A. Submit revised schedules and reports when changes are foreseen, when requested by
OWNER or ENGINEER, and with each application for progress payment.
B. Show changes occurring since previous submission.
1. Actual progress of each item to date.
2. Revised projections of progress and completion.
C. Provide a narrative report as needed to define:
1. Anticipated problems, recommended actions, and their effects on the schedule.
2. The effect of changes on schedules of others.
1.05 OWNER'S RESPONSIBILITY
A. OWNER's review is only for the purpose of checking conformity with the Contract
Documents and assisting CONTRACTOR in coordinating the Work with the needs of the
Project.
B. It is not to be construed as relieving CONTRACTOR from any responsibility to
determine the means, methods, techniques, sequences and procedures of construction as
provided in the General Conditions.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01330-1 Submittals
SECTION 01330
SUBMITTALS
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Requirements:
1. Where required by the Specifications, the CONTRACTOR shall submit
descriptive information that will enable the ENGINEER to determine
whether the CONTRACTOR’s proposed materials, equipment, methods of
work are in general conformance to the design concept and in accordance
with the Drawings and Specifications. The information submitted may
consist of drawings, specifications, descriptive data, certificates, samples, test
results, product data, and such other information, all as specifically required
in the Specifications. In some instances, specified submittal information
describes some, but not all features of the material, equipment, or method of
work.
2. The CONTRACTOR shall be responsible for the accuracy and completeness
of the information contained in each submittal and shall assure that the
material, equipment, or method of work shall be as described in the
submittal. The CONTRACTOR shall verify that all features of all products
conform to the requirements of the Drawings and Specifications. The
CONTRACTOR shall ensure that there is no conflict with other submittals
and notify the ENGINEER in each case where its submittal may affect the
work of another CONTRACTOR or the OWNER. The CONTRACTOR
shall ensure coordination of submittals among the related crafts and
subcontractors.
3. Submittals will be reviewed for overall design intent and returned to
CONTRACTOR with action to be indicated by the ENGINEER. It shall be
the CONTRACTOR’s responsibility to assure that previously accepted
documents are destroyed when they are superseded by a resubmittal as such.
4. It shall be the CONTRACTOR’s responsibility to ensure that required items
are corrected and resubmitted. Any work done before approval shall be at
the CONTRACTOR’s own risk.
B. Submittal Procedure:
1. Unless a different number is called for in the individual sections, six (6)
copies of each submittal and sample are required, four (4) of which will be
retained by the ENGINEER. The CONTRACTOR shall receive two (2)
copies in return. Faxed submittals will not be accepted.
2. Submittals that are related to or affect each other shall be forwarded
simultaneously as a package to facilitate coordinated review. Uncoordinated
submittals will be rejected.
RRF Outlet Pipe 01330-2 Submittals
3. If the items or system proposed are acceptable but the major part of the
individual drawings or documents are incomplete or require revision, the
submittal will be returned with requirements for completion.
4. The right is reserved for the ENGINEER to require submittals in addition to
those called for in individual sections.
5. Submittals regarding material and equipment shall be submitted directly to
the ENGINEER and will be accompanied by a transmittal form. A separate
form shall be used for each specific item, class of material, equipment, and
items specified in separate discrete sections for which the submittal is
required. Submittals for various items shall be made with a single form
when the items taken together constitute a manufacturer’s package or are so
functionally related that expediency indicates checking or review of the
group or package as a whole.
6. A unique number, sequentially assigned, shall be noted on the transmittal
form accompanying each item submitted. Original submittal numbers shall
have the following format: “XXX-Y;” where “XXX” is the originally
assigned submittal number and “Y” is a sequential letter assigned for
resubmittals (i.e., A, B, or C being the first, second and third resubmittals,
respectively). Submittal 25B, for example, is the second resubmittal of
Submittal 25.
7. If the CONTRACTOR proposes to provide material, equipment, or method
of work that deviates from the Contract Documents, it shall indicate so under
“deviations” on the transmittal form accompanying the submittal copies.
8. Submittals that do not have all the information required to be submitted,
including deviations, are not acceptable and will be returned without review.
C. Review Procedure:
1. Submittals are specified for those features and characteristics of materials,
equipment, and methods of operation that can be selected based on the
CONTRACTOR’s judgment of their conformance to the requirements of the
Drawing and Specifications. Other features and characteristics are specified
in a matter that enables the CONTRACTOR to determine acceptable options
without submittals. The review procedure is based on the CONTRACTOR’s
guarantee that all features and characteristics not requiring submittals
conform to the Drawings and Specifications. Review shall not extend to
means, methods, techniques, sequences, or procedures of construction or to
verifying quantities, dimensions, weights or gages, or fabrication processes
(except where specifically indicated or required by the Specifications) of
separate items, and as such, will not indicate approval of the assembly in
which the item functions.
2. Unless otherwise specified, within twenty-one (21) calendar days after
receipt of the submittal, the ENGINEER will review the submittal and return
copies. The returned submittal will indicate one of the following actions:
RRF Outlet Pipe 01330-3 Submittals
a. If the review indicates that the material, equipment, or work method
complies with the Specifications, submittal copies will be marked
“NO EXCEPTIONS TAKEN”. In this event, the CONTRACTOR
may begin to implement the work method or incorporate the material
or equipment covered by the submittal.
b. If the review indicates limited corrections are required, copies will be
marked “FURNISH AS NOTED”. The CONTRACTOR may begin
implementing the work method or incorporating the material and
equipment covered by the submittal in accordance with the noted
corrections. Where submittal information will be incorporated in
Operation and Maintenance data, a corrected copy shall be provided.
c. If the review indicates that the submittal is insufficient or contains
incorrect data, copies will be marked “REVISE AND RESUBMIT”.
Except at its own risk, the CONTRACTOR shall not undertake work
covered by this submittal until it has been revised, resubmitted and
returned marked either “NO EXCEPTIONS TAKEN” or “FURNISH
AS NOTED”.
d. If the review indicates that the material, equipment, or work method
do not comply with the Specifications, copies of the submittal will be
marked “REJECTED”. Submittals with deviations that have not
been identified clearly may be rejected. Except at its own risk, the
CONTRACTOR shall not undertake the work covered by such
submittals until a new submittal is made and returned marked either
”NO EXCEPTIONS TAKEN” or “FURNISH AS NOTED”.
D. Drawing:
1. The term “shop drawings” includes drawings, diagrams, layouts, schematic,
descriptive literature, illustrations schedules performance and test data, and
similar materials furnished by CONTRACTOR to explain in detail specific
portions of the work required by the Contract
2. CONTRACTOR shall coordinate all such drawings, and review them for
legibility, accuracy, completeness and compliance with contract requirements
and shall indicate this approval thereon as evidence of such coordination and
review. Shop drawing submitted to the ENGINEER without evidence of
CONTRACTOR’s approval will be returned for resubmission.
3. Shop drawing shall be clearly identified with the name and project number of
this contract, and references to applicable specification paragraphs and
contract drawings. When catalog pages are submitted, applicable items shall
be clearly identified.
4. CONTRACTOR shall stamp his approval on shop drawings prior to
submission to the ENGINEER as indication of his checking and verification
of dimensions and coordination with interrelated items. Stamp shall read:
“(CONTRACTOR’s Name) represents that we have determined and
verified all field dimensions and measurements, field construction
RRF Outlet Pipe 01330-4 Submittals
criteria, materials, catalog numbers and similar data, and that we
have checked with the requirements of the Specifications and
Drawings, the Contract Documents, and General Conditions”.
Marks on drawings by CONTRACTOR shall not be in red. Any marks by
CONTRACTOR shall be duplicated on all copies submitted.
5. If shop drawings show variations from contract requirements,
CONTRACTOR shall describe such variations in writing, separate from the
drawings, at time of submission. All such variations must be approved by
the ENGINEER. If ENGINEER approves any such variations, he shall
issue an appropriate contract modification, except that, if the variation is
minor and does not involve a change in price or in time of performance, a
modification need not be issued.
6. Should the CONTRACTOR propose any item on his shop drawings or
incorporate an item into the work, and that item should subsequently prove to
be defective or otherwise unsatisfactory, (regardless of the ENGINEER’s
preliminary review), the CONTRACTOR shall, at his own expense, replace
the item with another item that will perform satisfactorily.
E. Certificates:
For those items called for in individual sections, furnish six (6) certificates of
compliance from manufacturers or suppliers certifying that materials or equipment
being furnished under the Contract comply with the requirements of these
Specifications.
F. Samples:
Samples shall be sufficient in size to clearly illustrate functional characteristics and
full range of color, texture, and pattern.
G. Effect of Review of CONTRACTOR’s Submittals:
Review of drawings, data, methods of work, or information regarding materials or
equipment the CONTRACTOR proposes to provide, shall not relieve the contractor
of its responsibility for errors therein and shall not be regarded as an assumption of
risks or liability by the ENGINEER or the OWNER, or by any officer or employee
thereof, and the CONTRACTOR shall have no claim under the Contract on account
of the failure or partial failure, of the method of work, material, or equipment so
reviewed. A mark of “NO EXCEPTIONS TAKEN” or “FURNISH AS NOTED”
shall mean that the OWNER has no objection to the CONTRACTOR, upon its own
responsibility, using the plan or method of work proposed, or providing the materials
or equipment proposed.
RRF Outlet Pipe 01330-5 Submittals
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01330-6 Submittals
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 01425-1 Standard References
SECTION 01425
STANDARD REFERENCES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Reference to standards, specifications, manuals, or codes of any technical society,
organization, or association, or to the laws or regulations of any governmental
authority, whether such reference be specific or by implication, shall mean the latest
standard specification, manual, code, or laws or regulations in effect at the time of
opening of Bids, except as may be otherwise specifically stated. However, no
provision of any referenced standard, specifications manual or code (whether or not
specially incorporated by reference in the Contact Documents) shall be effective to
change the duties and responsibilities of OWNER, CONTRACTOR, or ENGINEER,
or any of their consultants, agents or employees from those set forth in the Contract
Documents, nor shall it be effective to assign to ENGINEER, or any of
ENGINEER’s Consultants, agents, or employees, any duty or authority to supervise
or direct the furnishing or performance of the Work.
Whenever used in the Contract Documents, the following abbreviations will have the
meanings listed:
AASHTO American Association of State Highway and Transportation
Officials
444 North Capital Street, N.W., Suite 225
Washington, DC 20001
ACI American Concrete Institute
P. O. Box 19150
Detroit, MI
ACPA American Concrete Pipe Association
AISC American Iron and Steel Institute
150 East 42nd Street
New York, NY 10017
AISI American Iron and Steel Institute
150 East 42nd Street
New York, NY 10017
ANSI American National Standards Institute, Inc.
1430 Broadway
New York, NY 10017
AREMA American Railway Engineering
and Maintenance-of-Way Association
8201 Corporate Drive, Suite 1125
Landover, MD 20785
ASCE American Society of Civil Engineers
345 East 47th Street
RRF Outlet Pipe 01425-2 Standard References
New York, NY 10017
ASTM American Society of Testing and Materials
1916 Race Street
Philadelphia, PA 19103
BOCA Building Officials and Code Administrators
17926 Halstead
Homewood, IL 60430
CISPI Cast Iron Soil Pipe Institute
CRSI Concrete Reinforcing Steel Institute
180 North LaSalle Street
Chicago, IL 60601
CSI Construction Specifications Institute
DIPRA Ductile Iron Pipe Research Associations
EPA Environmental Protection Agency
FEDSPEC Federal Specifications
General Services Administration
Specification and Consumer Information
Distribution Branch
Washington Navy Yard, Building 197
Washington, DC 20407
FEDSTDS Federal Standards (see FEDSPEC)
ICBO International Conference of Building Officials
5360 South Workman Mill Road
Whittier, CA 90601
MILSPEC Military Specifications
Naval Publications and Forms Center
5801 Tabor Avenue
Philadelphia, PA 19120
NIST National Institute of Standards and Technology
NPC National Plumbing Code
NSC National Safety Council
RRF Outlet Pipe 01425-3 Standard References
OSHA Occupational Safety and Health Act
U.S. Department of Labor
Occupational and Health Administration
San Francisco Regional Office
450 Golden Gate Avenue, Box 30617
PCA Portland Cement Association
PCI Prestressed Concrete Institute
PS Products Standards Section - U.S. Depart. of Commerce
SSPC Steel Structures Painting Council
SSPWC Standard Specifications for Public Works Construction
Building News, Inc.
3055 Overhead Avenue
Los Angeles, CA 90034
TCA Title Council of America
UBC Uniform Building Code
Published by ICBO
UL Underwriter’s Laboratory
207 East Ohio Street
Chicago, IL 60611
UMC Uniform Mechanical Code
Published by ICBO
UPC Uniform Plumbing Code
Published by IAPMO
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01425-4 Standard References
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RRF Outlet Pipe 01450-1 Materials Testing
SECTION 01450
MATERIALS TESTING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Provide such equipment and facilities as are required for conducting field tests and
for collecting and forwarding samples. Do not use any materials or equipment
represented by samples until tests, if required, have been made and the materials or
equipment found to be acceptable. Any product which becomes unfit for use after
approval thereof shall not be incorporated into the work.
B. Tests shall be made by an accredited testing laboratory selected by the OWNER.
Except as otherwise provided, sampling and testing of all materials and the laboratory
methods and testing equipment shall be in accordance with the latest standards and
tentative methods of the American Society for Testing Materials (ASTM), and the
American Association of Highway and Transportation Officials (AASHTO).
C. Where additional or specific information concerning testing methods, sample sizes,
etc., is required, such information is included under the applicable sections of the
Specifications. Any modification of, or elaboration on, these test procedures which
may be included for specific materials under their respective sections in the
Specifications shall take precedence over these procedures.
1.02 OWNER’S RESPONSIBILITIES
A. The OWNER shall be responsible for and shall pay all costs in connection with the
following testing:
1. Soils compaction tests.
2. Trench backfill.
3. Tests not called for by the Specifications of materials delivered to the site.
4. Concrete tests.
1.03 CONTRACTOR’S RESPONSIBILITIES
A. In addition to those inspections and tests called for in the General Conditions,
CONTRACTOR shall also be responsible for and shall pay all costs in connection
with testing required for the following:
1. Concrete materials and mix designs.
2. Gradation tests for embedment, fill and backfill materials.
3. All performance and field testing specifically called for by the Specifications.
4. All retesting for work or materials found defective or unsatisfactory, including
tests covered under 1.02 above.
RRF Outlet Pipe 01450-2 Materials Testing
5. Water quality testing required by discharge permits.
1.04 TRANSMITTAL OF TEST REPORTS
Written reports of tests and engineering data furnished by CONTRACTOR for ENGINEER’s
review of materials and equipment proposed to be used in the work shall be submitted as
specified for Shop Drawings.
The testing laboratory retained by the OWNER will furnish three (3) copies of a written
report of each test performed by laboratory personnel in the field or laboratory. Two (2)
copies of each test report will be transmitted to the ENGINEER and one (1) copy to the
CONTRACTOR within seven (7) days after each test is completed.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01555-1 Traffic Regulation
SECTION 01555
TRAFFIC REGULATION
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Conformance: Larimer County Traffic Control Regulations, City of Fort Collins Work Area
Traffic Control Handbook, Manual of Uniform Traffic Control Devices (U.S. Department of
Transportation), or applicable statutory requirements of authority having jurisdiction. Fort
Collins Handbook takes precedence over Manual of Uniform Traffic Control Devices.
B. Operations on or about traffic areas and provisions for regulating traffic will be subject to the
regulation of governmental agencies having jurisdiction over the affected areas.
C. Keep traffic areas free of excavated material, construction equipment, pipe, and other
materials and equipment.
D. Keep fire hydrants and water control valves free from obstruction and available for use at all
times.
E. Conduct operations in a manner to avoid unnecessary interference with public and private
roads and drives.
1.02 TRAFFIC CONTROL PLAN
A. The Traffic Control Plan is to be used as a guideline for the CONTRACTOR. Adjustments to
the approved plan may be required by the OWNER based on actual traffic operation.
B. Traffic control shall be provided by the CONTRACTOR.
1.03 FLAGMEN
A. Required where necessary to provide for public safety, or the regulation of traffic, or by
jurisdictional authorities.
B. Shall be properly equipped and certified by ATSSA.
1.04 WARNING SIGNS AND LIGHTS
A. Provide barricades and warning signs for:
1. Open trenches and other excavations.
2. Obstructions, such as material piles, equipment (moving or parked), piled
embankment.
B. Illuminate by means of warning lights all barricades and obstructions from sunset to
sunrise.
C. Protect roads and driveways by effective barricades on which are placed acceptable
RRF Outlet Pipe 01555-2 Traffic Regulation
warning signs.
D. Barricades and warning signs must be acceptable to the ENGINEER.
1.05 PARKING
A. The CONTRACTOR shall designate parking areas with the approval of the OWNER for
the use of all construction workers and others performing work or furnishing services in
connection with the project so as avoid interference with public traffic, OWNER's
operations, or construction activities.
1.06 ROADWAY USAGE BETWEEN OPERATIONS
A. At all times when work is not actually in progress, CONTRACTOR shall make passable
and shall open to traffic such portions of the project and temporary roadways or portions
thereof as may be agreed upon between CONTRACTOR and OWNER and all authorities
having jurisdiction over any properties involved.
1.07 WORK AREA SAFETY
A. The CONTRACTOR shall maintain a safe work area and protect area residents,
motorists, bicyclists, pedestrians, and children from work area hazards.
B. The CONTRACTOR shall provide all work area safety control devices, such as
barricades and safety fence around all excavations and drop-offs.
C. Work area safety control devices will not be paid for separately. Cost for this equipment
should be included in the unit costs for the work items which will require work area
safety control devices.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01635-1 Substitutions and
Product Options
SECTION 01635
SUBSTITUTIONS AND PRODUCT OPTIONS
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Description:
1. This section describes the procedure required by the CONTRACTOR for
product substitutions.
2. Requests for Substitution:
a. Base all bids on materials, equipment and procedures specified.
b. Certain types of equipment and kinds of material are described in
specifications by means of trade names and catalog numbers, and/or
manufacturer’s names. Where this occurs, it is not intended to
exclude from consideration such types of equipment and kinds of
material bearing other trade names, catalog numbers and/or
manufacturer’s names, capable of accomplishing purpose of types of
equipment or kinds of material specifically indicated.
c. Other types of equipment and kinds of material may be acceptable to
the OWNER and ENGINEER.
d. Types of equipment, kinds of material and methods of construction,
if not specifically indicated must be approved in writing by
ENGINEER and the OWNER.
3. Submission of Requests for Substitution:
a. After Notice to Proceed, the OWNER/ENGINEER will consider
written requests for substitutions of products, materials, systems or
other items.
b. The ENGINEER reserves the right to require substitute items to
comply color and pattern-wise with base specified items, if necessary
to secure “design intent”.
c. Submit six (6) copies of request for substitution. Include in request:
1) Complete data substantiating compliance of proposed
substitute with Contract Documents.
2) For products:
i. Product identification, including manufacturer’s
name.
ii. Manufacturer’s literature, marked to indicate
specific model, type, size, and options to be
RRF Outlet Pipe 01635-2 Substitutions and
Product Options
considered: Product description; performance and
test data; reference standards; difference in power
demand; dimensional differences for specified unit.
iii. Name and address of similar projects on which
product was used, date of installation, and field
performance data.
3) For construction methods:
i. Detailed description of proposed method.
ii. Drawings illustrating methods.
4) Itemized comparison of proposed substitution with product
or method specified.
5) Data relating to changes in construction schedule.
6) Relation to separate contracts.
7) Accurate cost data on proposed substitution in comparison
with product or method specified.
d. In making request for substitution, or in using an approved substitute
item, Supplier/Manufacturer represents:
1) He has personally investigated proposed product or method,
and has determined that it is equal or superior in all respects
to that specified and that it will perform function for which it
is intended.
2) He will provide same guarantee for substitute item as for
product or method specified.
3) He will coordinate installation of accepted substitution into
work, to include building modifications if necessary, making
such changes as may be required for work to be complete in
all aspects.
4) He waives all claims for additional costs related to
substitution, which subsequently become apparent.
4. Substitutions:
a. Request sufficiently in advance to avoid delay in construction.
RRF Outlet Pipe 01635-3 Substitutions and
Product Options
5. CONTRACTOR’s Option:
a. For products specified only by reference standards, select any
product meeting standards by any manufacturer, indicate selected
type in submission.
b. For products specified by naming several products or manufacturers,
select any product and manufacturer named, indicate selected type in
submission.
c. For products specified by naming one or more products, but
indicating option of selecting equivalent products by stating “or
equivalent” after specified product, CONTRACTOR must submit
request, as required for substitution, for any product not specifically
named.
6. Rejection of Substitution or Optional Item:
a. Substitutions and/or options will not be considered if:
1) They are indicated or implied on shop drawings, or project
data submittals, without formal request submitted in
accordance with this section.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01635-4 Substitutions and
Product Options
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RRF Outlet Pipe 01650-1 Material Delivery,
Storage, and Handling
SECTION 01650
MATERIAL DELIVERY, STORAGE,
AND HANDLING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Equipment, products and materials shall be shipped, handled, stored, and installed in
ways which will prevent damage to the items. Damaged items will not be permitted
as part of the work except in cases of minor damage that have been satisfactorily
repaired and are acceptable to the ENGINEER.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe 01650-2 Material Delivery,
Storage, and Handling
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RRF Outlet Pipe 01710-1 Site Conditions
SECTION 01710
SITE CONDITIONS
PART 1 GENERAL
1.01 SECTION INCLUDES
A. General:
1. The CONTRACTOR acknowledges that he has satisfied himself as to the nature
and location of the work, the general and local conditions, particularly those
bearing upon access to the site; handling, storage, and disposal of materials;
availability of water, electricity and roads; uncertainties of weather, river stages,
water flow rates and levels in irrigation ditches and canals or similar physical
conditions at the site; the conformation and conditions of the ground; the
equipment and facilities needed preliminary to and during the execution of the
work; and all other matters which can in any way affect the work or the cost
thereof under this Contract.
2. The CONTRACTOR further acknowledges that he has satisfied himself as to the
character, quality and quantity of surface and subsurface materials to be
encountered from his inspection of the site and from reviewing any available
records of exploratory work furnished by the OWNER or included in these
Documents. Failure by the CONTRACTOR to acquaint himself with the
physical conditions of the site and all the available information will not relieve
him from responsibility for properly estimating the difficulty or cost of
successfully performing the work.
3. The CONTRACTOR warrants that as a result of his examination and
investigation of all the aforesaid data that he can perform the work in a good and
workmanlike manner and to the satisfaction of the OWNER. The OWNER
assumes no responsibility for any representations made by any of its officers or
agents during or prior to the execution of this Contract, unless (1) such
representations are expressly stated in the Contract, and (2) the Contract
expressly provides that the responsibility therefore is assumed by the OWNER.
PART 2 PRODUCTS
2.01 INFORMATION ON SITE CONDITIONS
A. Any information obtained by the ENGINEER regarding site conditions, subsurface
information, groundwater elevations, existing construction of site facilities, and similar
data will be available for inspection, as applicable, at the office of the ENGINEER upon
request. Such information is offered as supplementary information only. Neither the
ENGINEER nor the OWNER assumes any responsibility for the completeness or
interpretation of such supplementary information.
1. Differing Subsurface Conditions:
a. In the event that the subsurface or latent physical conditions are found
materially different from those indicated in these Documents, and
differing materially from those ordinarily encountered and generally
RRF Outlet Pipe 01710-2 Site Conditions
recognized as inherent in the character of work covered in these
Contract Documents, the CONTRACTOR shall promptly, and before
such conditions are disturbed, notify the ENGINEER in writing of such
changed conditions.
b. The ENGINEER will investigate such conditions promptly and
following this investigation, the CONTRACTOR shall proceed with the
work, unless otherwise instructed by the ENGINEER. If the
ENGINEER finds that such conditions do so materially differ and cause
an increase or decrease in the cost of or in the time required for
performing the work, the ENGINEER will recommend to the OWNER
the amount of adjustment in cost and time he considers reasonable. The
OWNER will make the final decision on all Change Orders to the
Contract regarding any adjustment in cost or time for completion.
2. Underground Utilities:
a. Known utilities and structures adjacent to or encountered in the work are
shown on the Drawings. The locations shown are taken from existing
records and the best information available from existing utility plans,
however, it is expected that there may be some discrepancies and
omissions in the locations and quantities of utilities and structures
shown. Those shown are for the convenience of the CONTRACTOR
only, and no responsibility is assumed by either the OWNER or the
ENGINEER for their accuracy or completeness.
PART 3 EXECUTION
3.01 GENERAL
A. Where the CONTRACTOR's operations could cause damage or inconvenience to
railway, telegraph, telephone, television, oil, gas, electricity, water, sewer, or irrigation
systems, the operations shall be suspended until all arrangements necessary for the
protection of these utilities and services have been made by the CONTRACTOR.
B. Notify all utility offices which are affected by the construction operation at least 48 hours
in advance. Under no circumstances expose any utility without first obtaining permission
from the appropriate agency. Once permission has been granted, locate, expose, and
provide temporary support for all existing underground utilities.
C. The CONTRACTOR shall protect all utility poles from damage. If interfering power
poles, telephone poles, guy wires, or anchors are encountered, notify the ENGINEER and
the appropriate utility company at least 48 hours in advance of construction operations to
permit the necessary arrangements for protection or relocation of the interfering structure.
D. The CONTRACTOR shall be solely and directly responsible to the owner and operators
of such properties for any damage, injury, expense, loss, inconvenience, delay, suits,
actions, or claims of any character brought because of any injuries or damage which may
result from the construction operations under this Contract.
E. Neither the OWNER nor its officers or agents shall be responsible to the
CONTRACTOR for damages as a result of the CONTRACTOR's failure to protect
RRF Outlet Pipe 01710-3 Site Conditions
utilities encountered in the work.
F. If the CONTRACTOR while performing the Contract discovers utility facilities not
identified in the Drawings or Specifications, he shall immediately notify the OWNER,
utility, and the ENGINEER in writing.
G. In the event of interruption to domestic water, sewer, storm drain, or other utility services
as a result of accidental breakage due to construction operations, promptly notify the
proper authority. Cooperate with said authority in the restoration of service as promptly
as possible and bear all costs of repair.
H. The CONTRACTOR shall replace, at his own expense, any and all other existing utilities
or structures removed or damaged during construction, unless otherwise provided for in
these Contract Documents or ordered by the ENGINEER.
3.02 INTERFERING STRUCTURES
A. The CONTRACTOR shall take necessary precautions to prevent damage to existing
structures whether on the surface, aboveground, or underground. An attempt has been
made to show major structures on the Drawings. The completeness and accuracy cannot
be guaranteed, and it is presented simply as a guide to avoid known possible difficulties.
3.03 FIELD RELOCATION
A. During the progress of construction, it is expected that minor relocations of the work will
be necessary. Such relocations shall be made only by direction of the ENGINEER. If
existing structures are encountered that prevent the construction, and that are not properly
shown on the Drawings, notify the ENGINEER before continuing with the construction
in order that the ENGINEER may make such field revision as necessary to avoid conflict
with the existing structures. If the CONTRACTOR shall fail to so notify the ENGINEER
when an existing structure is encountered, and shall proceed with the construction despite
the interference, he shall do so at his own risk.
3.04 EASEMENTS
A. Where portions of the work are located on public or private property, easements and
permits will be obtained by the OWNER. Easements will provide for the use of the
property for construction purposes to the extent indicated on the easements. Copies of
these easements and permits are available upon request to the OWNER. It shall be the
CONTRACTOR's responsibility to determine the adequacy of the easement obtained in
every case and to abide by all requirements and provisions of the easement. The
CONTRACTOR shall confine his construction operations to within the easement limits
or make special arrangements with the property owners or appropriate public agency for
the additional area required. Any damage to property, either inside or outside the limits
of the easements provided by the OWNER, shall be the responsibility of the
CONTRACTOR as specified herein. The CONTRACTOR shall remove, protect, and
replace all fences or other items encountered on public or private property. Before final
payment will be authorized by the ENGINEER, the CONTRACTOR will be required to
furnish the OWNER with written releases from property owners or public agencies where
side agreements or special easements have been made by the CONTRACTOR or where
the CONTRACTOR's operations, for any reason, have not been kept within the
construction right-of-way obtained by the OWNER.
RRF Outlet Pipe 01710-4 Site Conditions
B. It is anticipated that the required easements and permits will be obtained before
construction is started. However, should the procurement of any easement or permit be
delayed, the CONTRACTOR shall schedule and perform the work around these areas
until such a time as the easement or permit has been secured.
3.05 LAND MONUMENTS
A. The CONTRACTOR shall notify the ENGINEER of any existing Federal, State, City,
County, and private land monuments encountered. Private monuments shall be
preserved, or replaced by a licensed surveyor at the CONTRACTOR's expense. When
Government monuments are encountered, the CONTRACTOR shall notify the
ENGINEER at least two (2) weeks in advance of the proposed construction in order that
the ENGINEER will have ample opportunity to notify the proper authority and reference
these monuments for later replacement.
END OF SECTION
RRF Outlet Pipe 01715-1 Tree, Landscape, Vegetation,
and Wetland Protection
SECTION 01715
TREE, LANDSCAPE, VEGETATION, AND WETLAND PROTECTION
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The work for this section consists of protecting existing trees, landscape, wetlands and
adjacent vegetation. The CONTRACTOR must take special care to avoid damaging
existing trees and vegetation in areas that do not need to be disturbed to complete
construction.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION
3.01 SUBMITTAL REQUIREMENTS
A. The CONTRACTOR shall submit a plan for on-site haul of materials prior to
construction. The plans shall include points of access to and from the site and shall show
a workable system of on-site haul routes that protect existing landscaped and wetland
areas. This plan shall be submitted to the ENGINEER for his review and comment prior
to the commencement of any work. The plan will be discussed with the CONTRACTOR
to insure protection of existing vegetation, but the ENGINEER shall not dictate haul
routes or construction methods to the CONTRACTOR. Note that the Natural Resources
Department may dictate haul routes within the city designated Natural area.
3.02 CONSTRUCTION REQUIREMENTS
A. Protected areas will be marked in the field, one time, by the OWNER and ENGINEER.
No access of construction vehicles or workers on foot is permitted through protected
areas. No material shall be stockpiled; no equipment shall be parked or repaired within
these areas.
B. Trees and vegetation to be saved that do not fall within the limits of protected areas shall
be marked one time in the field by the OWNER and ENGINEER. The CONTRACTOR
shall erect fencing if there is risk of damage caused by construction operations. Vehicular
and pedestrian traffic shall be limited to performing work in areas marked. Through
traffic, and stock piling of equipment and materials are not permitted within marked
areas.
C. No construction roads are to be created within the drop lines of any trees or other
vegetation designated to be saved without approval of the ENGINEER.
D. All trees which will be preserved, but are within the limits of construction, must be
protected from all damage associated with construction. A sturdy, physical barrier
(florescent orange in color) must be fixed in place around each tree for the duration of
construction. This barrier will be placed no closer than 6 feet from the trunk, or the drip
line, whichever is greater. The barrier itself must be fixed so it cannot be moved easily,
but the material can be flexible, such as orange snow fence attached to T-posts driven into
the ground, and must act as an effective deterrent to deliberate or accidental damage of
each tree. Actual materials and location of barrier must be approved by the OWNER’s
RRF Outlet Pipe 01715-2 Tree, Landscape, Vegetation,
and Wetland Protection
representatives (i.e. Natural Resources and City Forester) and ENGINEER.The cost of
these tree protection measures are to be borne solely by the CONTRACTOR.
E. The movement or storage of equipment, material, debris, or fill within these required
protective barriers is completely prohibited.
F. Any trees damaged during construction shall be immediately repaired by an approved tree
surgeon. Any tree judged by the ENGINEER to be damaged beyond repair shall be
removed at the CONTRACTOR’s expense. For each tree erroneously removed or
damaged beyond repair, an assessment shall be immediately withheld from the
CONTRACTOR’s progress payments. This assessment shall be equal to the value of the
tree prior to damage. This assessment shall be determined by a tree appraiser, selected by
the OWNER and paid for by the CONTRACTOR. The cost for hiring the appraiser shall
also be withheld from the CONTRACTOR’s progress payments.
In addition to the paying of the assessment, the CONTRACTOR shall replace each
damaged tree per OWNER’S standards for tree mitigation.
G. The CONTRACTOR shall pay an assessment if he disturbs any grasses, shrubs and/or
cattails located within the protected areas. The assessment shall not exceed one dollar
($1.00) per square foot of disturbance, and will be immediately withheld from the
CONTRACTOR’s progress payments.
In addition to the paying of the assessment, the damaged vegetation shall be replaced with
an equal value per square foot of damage. Replacements shall be planted in accordance
with the provisions outlined in these Specifications. Damaged wetland areas shall be
replaced and then seeded with a wetland seed mix in accordance with these Specifications
or as directed by the ENGINEER.
END OF SECTION
RRF Outlet Pipe 01720-1 Field Engineering
and Surveying
SECTION 01720
FIELD ENGINEERING AND SURVEYING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Surveying:
1. The CONTRACTOR will provide construction surveying for the project.
2. The CONTRACTOR shall protect all survey monuments and construction
stakes. If it is unavoidable to remove a survey monument or construction
stakes, the CONTRACTOR is responsible for notifying the Surveyor and
allowing enough time for the monuments or stakes to be relocated. The
CONTRACTOR will be responsible for the cost of restaking construction
stakes and for the cost of reestablishing a destroyed monument.
6. The CONTRACTOR shall be responsible for transferring the information
from the construction staked to any necessary forms and for constructing all
pipelines, drainage ways, pavements, inlets, walls, and other structures in
accordance with the information on the stakes and grade sheets supplied by
the OWNER.
B. Supervision: The CONTRACTOR shall have supervision, knowledge of the project
requirements and proper installation, and construction procedures, available in the
field at all times that work is progressing.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
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RRF Outlet Pipe 01745-1 Environmental Controls
SECTION 01745
ENVIRONMENTAL CONTROLS
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The work of this section consists of obtaining permits and providing environmental
controls consistent with regulatory permits through the duration of the work required
under this project.
PART 2 PRODUCTS
2.01 MATERIALS
A. Dust Control: Dust control agents may be necessary in addition to wetting down
with water. Dust control agents may be used only after prior approval by the
OWNER.
PART 3 EXECUTION
3.01 Dust Control Application:
A. The CONTRACTOR shall execute work by methods to minimize raising dust from
construction operations.
B. The CONTRACTOR shall provide and apply dust control at all times, including
evenings, holidays and weekends, as required to abate dust nuisance on and about the
site that is a direct result of construction activities. The use of non-approved
chemicals, oil, or similar palliatives will not be allowed. Dust control agents may be
used only after prior approval of the OWNER. The CONTRACTOR shall be
required to provide sufficient quantities of equipment and personnel for dust control
sufficient to prevent dust nuisance on and about the site.
C. The OWNER will have authority to order dust control work whenever in its opinion
it is required, and there shall be no additional cost to the OWNER. The
CONTRACTOR shall be expected to maintain dust control measures effectively
whether the OWNER or ENGINEER specifically orders such Work.
3.02 PRESERVATION OF NATURAL FEATURES
A. Confine operations as much as possible. Exercise special care to maintain natural
surroundings in an undamaged condition. Within the work limits, barricade trees,
rock outcroppings, and natural features to be preserved.
3.03 HOUSEKEEPING
A. Keep project neat, orderly, and in a safe condition at all times. Store and use
equipment, tools, and materials in a manner that does not present a hazard.
RRF Outlet Pipe 01745-2 Environmental Controls
Immediately remove all rubbish. Do not allow rubbish to accumulate. Provide on-
site containers for collection of rubbish and dispose of it at frequent intervals during
progress of work.
3.04 DISPOSAL
A. Disposal of Waste (Unsuitable) Materials: All material determined by the
ENGINEER to be waste will be disposed of in approved landfill in a manner meeting
all regulations. Dispose of waste materials, legally, at public or private dumping
areas. Do not bury wastes inside of the limits of construction. All costs for dump
fees, permits, etc., to be borne by the CONTRACTOR.
B. Disposal of Garbage and Other Construction Materials: Provide sanitary
containers/dumpsters and haul away contents such that no overflow exists.
C. Excess excavation shall become the property of the CONTRACTOR and shall be
legally disposed of by him outside the limits of construction to an approved disposal
site. Excess excavated material suitable for backfill shall not be disposed of until all
backfill operations are complete.
D. The CONTRACTOR is to immediately inform ENGINEER of any hazardous
materials encountered during construction. Dispose of waste materials legally at
private or public facilities.
3.05 BURNING
A. No burning of debris will be permitted.
3.06 WATER CONTROL
A. The project work is located within a natural drainage course is subject to periodic
flooding due to rainfall and snowmelt, flows for adjacent developed areas and storm
water pipes and ground water flows from saturated soils or other ground water
sources. Refer to Section 02240 for Water Control and Dewatering requirements.
3.07 NOISE CONTROL
A. All mechanical equipment shall be equipped with the best available mufflers to
reduce noise. The CONTRACTOR shall be responsible for obtaining any necessary
permits and shall limit noise to the permitted levels. Noise level monitoring shall be
performed by the CONTRACTOR as necessary to show that the permitted levels are
not being exceeded.
3.08 PERMITS
A. All work must be performed in accordance with all applicable regulatory permits.
It shall be the responsibility of the CONTRACTOR to obtain a Groundwater
Discharge (402) Permit from the Colorado Department of Public Health and
Environment for any dewatering operations that will be discharged into any
RRF Outlet Pipe 01745-3 Environmental Controls
drainageways, open channels, or irrigation ditches. The CONTRACTOR shall be
responsible for any testing required under the 402 Permit.
It shall also be the responsibility of the CONTRACTOR to apply for and obtain a
State of Colorado Stormwater Discharge Permit and to prepare and gain approval of a
Stormwater Management Plan (SWMP). All costs for this permit shall be the
responsibility of the CONTRACTOR.
B. The OWNER will obtain the following permits:
• 404 permit
• City of Fort Collins and/or Larimer County Floodplain Permit
C. It shall be the responsibility of the CONTRACTOR to prepare and obtain an
approved Erosion and Sediment Control Plan from the OWNER. The
CONTRACTOR must obtain all other applicable permits.
END OF SECTION
RRF Outlet Pipe 01745-4 Environmental Controls
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RRF Outlet Pipe 01780-1 Contract Closeout
SECTION 01780
CONTRACT CLOSEOUT
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The following project closeout procedure defines the responsibilities of the
CONTRACTOR, OWNER, and ENGINEER in closing the project:
Step 1: CONTRACTOR advises the ENGINEER in writing that he has reached
"Substantial Completion" and provides a list of items to be completed or corrected.
Closeout may be conducted by areas or portions of the work if requested by the
OWNER.
Step 2: ENGINEER inspects the work to determine if it is substantially complete,
and issues a Certificate of Substantial Completion plus a "Punch List" of items to be
completed or corrected.
Substantial Completion - Definition
1. Reference General Conditions, Substantial Completion
Step 3: CONTRACTOR completes and/or corrects all punch list items and notifies
the ENGINEER in writing that his work is ready for final inspection. At this time, a
final application for payment is submitted.
Step 4: ENGINEER makes final inspection. When the work is found to be
acceptable under the Contract Documents, and the Contract fully performed, the
ENGINEER will issue a final Certificate for Payment.
B. Final Paperwork:
Prior to Final Payment and Acceptance, the CONTRACTOR shall deliver the
following items to the ENGINEER:
1. CONTRACTOR's Two-Year Correction Period.
2. All Guarantees, Warranties and Submittals, as specified.
3. Receipts for Extra Materials Delivered to the OWNER.
4. Final Application for Payment.
5. Consent of Surety to Final Payment.
6. CONTRACTOR's Affidavit of Release of Liens.
7. Releases from Property Owners for Special Easements.
8. Project Record Documents.
RRF Outlet Pipe 01780-2 Contract Closeout
9. Red-lined as-built drawings (a.k.a. “Drawings of Record” or “Record
Drawings”).
C. Definition for Substantial Completion
1. All of the following work must be complete:
a. Pipe and headwalls and gates are complete and in place.
b. All final grading complete over the new pipe.
d. All buried riprap in place, and all ground preparation and seeding
complete.
D. Definition for Final Completion
1. All Work must be complete for Final Completion.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION (Not Applicable)
END OF SECTION
RRF Outlet Pipe
DIVISION 2 – SITE WORK
SECTION 02230 CLEARING AND GRUBBING
SECTION 02235 TOP SOIL
SECTION 02240 WATER CONTROL AND DEWATERING
SECTION 02315 EXCAVATION AND EMBANKMENT
SECTION 02320 TRENCH EXCAVATION AND BACKFILL
SECTION 02370 EROSION AND SEDIMENT CONTROL
SECTION 02375 RIPRAP AND BEDDING
SECTION 02610 REINFORCED CONCRETE PIPE
SECTION 02635 MANHOLE STRUCTURES
SECTION 02920 GRASSES
SECTION 02921 GROUND PREPARATION FOR SEEDING
RRF Outlet Pipe 02230-1 Clearing and Grubbing
SECTION 02230
CLEARING AND GRUBBING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This work consists of clearing, grubbing, removing, and disposing of vegetation and
debris within the limits of the project site as shown on the Drawings and as required
by the Work. Vegetation and objects designated to remain shall be preserved free
from injury or defacement.
1.02 RELATED SECTIONS
A. Section 02315 - Excavation and Embankment
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION
3.01 CONSTRUCTION REQUIREMENTS
A. The OWNER will designate all trees, shrubs, plants, and other objects to remain.
Any object that is designated to remain and is damaged shall be repaired or replaced
as directed by the OWNER, at the CONTRACTOR’s expense.
Clearing and grubbing shall extend to the toe of fill or the top of cut slopes, unless
otherwise designated. All surface objects, trees, stumps, roots, and other protruding
obstructions not designated to remain shall be cleared and grubbed, including
mowing, as required. Undisturbed stumps, roots, and nonperishable solid objects
located two feet or more below subgrade or embankment slope may remain in place.
In areas to be rounded at the tops of backslopes, stumps shall be removed to at least
two feet below the surface of the final slope line.
Except in areas to be excavated, all holes resulting from the removal of obstructions
shall be backfilled with suitable material and compacted in accordance with Section
02315.
No material or debris shall be disposed of within the project limits.
All cleared timber shall be removed from the project and shall become the property
of the CONTRACTOR. All trimming shall be done in accordance with good tree
surgery practices. The maximum tree diameter included for removal in this section
shall be 12 inches.
The CONTRACTOR shall scalp the areas within the excavation or embankment
grading limits. Scalping shall include the removal from the ground surface of
sawdust, and other vegetation matter.
END OF SECTION
RRF Outlet Pipe 02230-2 Clearing and Grubbing
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 02235-1 Topsoil
SECTION 02235
TOPSOIL
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This work consists of stripping, salvaging and stockpiling topsoil, and excavating
suitable topsoil from stockpiles, contractor sources, available sources, or from the
approved natural ground cover to place on designated areas. It shall include the
placing of topsoil upon constructed cut and fill slopes after grading operations are
completed.
1.02 RELATED SECTIONS
A. Section 02230 – Clearing and Grubbing
B. Section 02315 – Excavation and Embankment
PART 2 PRODUCTS
2.01 MATERIALS
A. Topsoil shall consist of loose friable loam free of subsoil, refuse, stumps, roots,
rocks, brush, weeds, heavy clay, hard clods, toxic substances, or other material
which would be detrimental to its use on the project. Topsoil shall consist of
natural on-site ground cover or hauled material from off-site sources.
Wetland topsoil material shall consist of moist organic soil, including any
existing wetland vegetation and seeds, to be excavated from areas as shown on
the plans or as directed by the ENGINEER or OWNER.
PART 3 EXECUTION
3.01 CONSTRUCTION REQUIREMENTS
A. Topsoil within the limits of the project shall be salvaged prior to beginning hauling,
excavating, or fill operations by excavating and stockpiling the material at
designated locations in a manner that will minimize sediment damage, and not
obstruct natural drainage. Topsoil shall be placed directly upon completed cut and
fill slopes whenever conditions and the progress of construction will permit.
B. No soil stockpile shall exceed ten (10) feet in height. All soil stockpiles shall be
protected from sediment transport by surface roughening, watering, and perimeter
silt fencing. Any soil stockpile remaining after 30 days shall be seeded and
mulched.
C. Topsoil shall be placed at locations and to a thickness of not less
than 4 inches and shall be keyed to the underlying material by the
use of harrows, rollers, or other suitable equipment.
RRF Outlet Pipe 02235-2 Topsoil
Water shall be applied to the topsoil as designated in the Contract,
in a fine spray by nozzles or spray bars so the topsoil areas will not
be washed or eroded.
Salvaged topsoil exceeding the quantity required under the
Contract shall be disposed of at the CONTRACTOR’s expense.
END OF SECTION
RRF Outlet Pipe 02240-1 Water Control and Dewatering
SECTION 02240
WATER CONTROL AND DEWATERING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The work of this section consists of controlling groundwater, site drainage, and storm
flows during construction. The CONTRACTOR is cautioned that the work involves
construction in and around drainage channels, local streams or rivers, and areas of local
drainage. These areas are subject to frequent periodic inundation.
1.02 RELATED SECTIONS
A. Section 02315 – Excavation and Embankments
PART 2 PRODUCTS
2.01 MATERIALS
A. On-site materials may be used within the limits of construction to construct temporary
dams and berms. The materials such as plastic sheeting, sand bags, and storm sewer
pipe may also be used if desired by the CONTRACTOR.
PART 3 EXECUTION
3.01 CONSTRUCTION REQUIREMENTS
A. General: For all excavation, the CONTRACTOR shall provide suitable equipment and
labor to remove water, and he shall keep the excavation dewatered so that construction
can be carried on under dewatered conditions where required by the Drawings and
Specifications. Water control shall be accomplished such that no damage is done to
adjacent channel banks or structures. The CONTRACTOR is responsible for
investigating and familiarizing himself with all site conditions that may affect the work
including surface water, level of groundwater and the time of year the work is to be
done. All excavations made as part of dewatering operations shall be backfilled with
the same type material as was removed and compacted to 95% of Maximum Standard
Proctor Density (ASTM D698) except where replacement by other materials and/or
methods are required. The cost for this excavation and backfilling shall be included in
the Construction Dewatering bid item.
The CONTRACTOR shall conduct his operation in such a manner that storm or other
waters may proceed uninterrupted along their existing drainage courses. By submitting
a bid, the CONTRACTOR acknowledges that he has investigated the risk arising from
such waters and has prepared his bid accordingly, and assumes all of said risk.
At no time during construction shall the CONTRACTOR affect existing surface or
subsurface drainage patterns of adjacent property. Any damage to adjacent property
resulting from the CONTRACTOR’s alteration of surface or subsurface drainage
patterns shall be repaired by the CONTRACTOR at no additional cost to the OWNER.
CONTRACTOR shall remove all temporary water control facilities when they are no
longer needed or at the completion of the project.
RRF Outlet Pipe 02240-2 Water Control and Dewatering
Pumps and generators used for dewatering and water control shall be quiet equipment
enclosed in sound deadening devices.
B. Surface Water Control: Surface water control generally falls in to the following
categories:
1. Normal low flows along the channel;
2. Storm/flood flows along the channel;
3. Flows from existing storm drain pipelines; and,
4. Local surface inflows not conveyed by pipelines.
The CONTRACTOR shall coordinate, evaluate, design, construct, and maintain
temporary water conveyance systems. These systems shall not worsen flooding, alter
major flow paths, or worsen flow characteristics during construction. The
CONTRACTOR is responsible to ensure that any such worsening of flooding does
not occur. The CONTRACTOR is solely responsible for determining the methods
and adequacy of water control measures.
At a minimum, the CONTRACTOR will be responsible for diverting the quantity of
surface flow around the construction area so that the excavations will remain free of
surface water for the time it takes to install these materials, and the time required for
curing of any concrete or grout. The CONTRACTOR is cautioned that the minimum
quantity of water to be diverted is for erosion control and construction purposes and
not for general protection of the construction-site. It shall be the CONTRACTOR's
responsibility to determine the quantity of water which shall be diverted to protect his
work from damage caused by storm water.
The CONTRACTOR shall, at all times, maintain a flow path for all channels.
Temporary structures such as berms, sandbags, pipeline diversions, etc., may be
permitted for the control of channel flow, as long as such measures are not a major
obstruction to flood flows, do not worsen flooding, or alter historic flow routes.
C. Groundwater Control: The CONTRACTOR shall install adequate measures to
maintain the level of groundwater below the foundation subgrade elevation and
maintain sufficient bearing capacity for all structures, pipelines, earthwork, and rock
work. Such measures may include, but are not limited to, installation of perimeter
subdrains, pumping from drilled holes or by pumping from sumps excavated below
the subgrade elevation. The foundation bearing surfaces are to be kept dewatered
and stable until the structures or other types of work are complete and backfilled.
Disturbance of foundation subgrade by CONTRACTOR operations shall not be
considered as originally unsuitable foundation subgrade and shall be repaired at
CONTRACTOR’s expense.
Any temporary dewatering trenches or well points shall be restored following
dewatering operations to reduce permeability in those areas as approved by the
ENGINEER.
CONTRACTOR is to restore any areas disturbed by the dewatering operations to
their original condition.
RRF Outlet Pipe 02240-3 Water Control and Dewatering
D. Contaminated Groundwater Control: CONTRACTOR shall not discharge
contaminated water exceeding local, State and/or Federal limits to above ground
channels or watercourses.
END OF SECTION
RRF Outlet Pipe 02240-4 Water Control and Dewatering
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 02315-1 Excavation and Embankment
SECTION 02315
EXCAVATION AND EMBANKMENT
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This work shall consist of excavation, embankment fill, disposal of excess material,
shaping, and compaction of all material encountered within the limits of work,
including excavation and backfill for structures. The excavation shall include, but is
not limited to, the native soils which must be excavated for the project work. All work
shall be completed in accordance with these Specifications and the lines and grades on
the Drawings.
1.02 DEFINITIONS
A. Unclassified Excavation shall consist of the excavation of all materials on site to final
grades, excluding the bid items included in Section 02220. Excavation of unsuitable
material will only be paid for if it is found to be unsuitable in its original state.
B. Muck Excavation shall consist of the removal and disposal of mixtures of soils and
organic matter not suitable for foundation material and replacement with approved
material. Material damaged due to rain or weather will not be paid for as Muck
excavation and is entirely the responsibility of the CONTRACTOR.
C. Rock Excavation shall consist of igneous, metamorphic and sedimentary rock which
cannot be excavated without the use of rippers, and all boulders or other detached
stones each having a volume of 1/2 cubic yard or more, as determined by physical or
visual measurement. It shall also include replacement with approved material as
required.
D. Embankment (Complete in Place): shall consist of placing all excavated material,
except material being hauled and disposed, as embankment and compacted to final
grades as specified in the Contract Documents and on the Drawings.
1.03 DESCRIPTION
A. This work shall consist of excavation, disposal, placement, and compaction of all
material encountered within the limits of the work, and not being completed under
some other item, necessary for the construction of the project in accordance with the
Specifications and the lines, grades, and typical cross-sections shown on the
Drawings. All excavation will be classified, “unclassified excavation”, or “muck
excavation” or “rock excavation”, as hereafter described. All embankment will be
classified “embankment material” as hereafter described.
1.04 RELATED SECTIONS
A. Section 02230 – Clearing and Grubbing
B. Section 02240 – Water Control and Dewatering
RRF Outlet Pipe 02315-2 Excavation and Embankment
1.05 QUALITY ASSURANCE
A. Final topography and/or cross-sections will be surveyed of areas that are to finished
grade and compared to the design section for accuracy. Final grade shall match
design grades within the tolerances discussed in PART 3 EXECUTION.
PART 2 PRODUCTS
2.01 MATERIALS
A. Embankment material may consist of approved material acquired from excavations
or material hauled from outside the project limits. Suitable material identified on-site
shall be used first for embankments and backfill. Excess excavated native soils which
are not used as embankment or backfill shall become the property of the
CONTRACTOR and shall be disposed of off-site by the CONTRACTOR, in a
location acceptable to the ENGINEER.
B. Muck excavation encountered in all areas shall also include the replacement of
excavated muck with uniformly graded rock, riprap, on-site or imported soils, or
other material whichever is most suitable for the specific situation encountered. The
ENGINEER will determine which type of aggregate or other material which shall be
used after observing the specific site conditions.
PART 3 EXECUTION
3.01 GENERAL EXCAVATION/EMBANKMENT
A. General: The excavation and embankment for the project work shall be finished to
reasonably smooth and uniform surfaces. Variation from the subgrade plane shall not
be more than .08 feet in soil or more than .08 feet above or .50 below in rock. Where
bituminous or concrete surfacing materials are to be placed directly on the subgrade,
the subgrade plane shall not vary more than 0.04 feet. Materials shall not be wasted
without permission of the ENGINEER. Excavation operations shall be conducted so
that material outside of the limits of slopes will not be disturbed. Prior to beginning
grading operations in any area, all necessary clearing and grubbing in that area shall
have been performed in accordance with Section 02230 of these Specifications.
When the CONTRACTOR’s excavating operations encounter remains of pre-historic
people’s dwelling sites or artifacts of historical or archaeological significance, the
operations, shall be temporarily discontinued. The ENGINEER will contact
archaeological authorities to determine the disposition thereof. When directed, the
CONTRACTOR shall excavate the site in such a manner as to preserve the artifacts
encountered and shall remove them for delivery to the custody of the proper state
authorities. Such excavation will be considered and paid for as extra work.
B. Excavation:
1. Unclassified: All excess suitable material excavated from the project site
and not used for embankment shall be removed from the project site and
become the property of the CONTRACTOR. Where material encountered
RRF Outlet Pipe 02315-3 Excavation and Embankment
within the limit of the work is considered unsuitable for embankment (fills)
on any portion of this project work, such material shall be excavated as
directed by the ENGINEER and replaced with suitable fill material. All
unsuitable excavated material from excavation consisting of any type of
debris (surface or buried), excavated rock, bedrock or rocks larger than 6
inches in diameter and boulders shall be hauled from the project site and
disposed of. Debris is defined as “anything that is not earth which exists at
the job site”.
2 . Muck: Where excavation to the finished grade section results in a subgrade
or slopes of unsuitable soil, the ENGINEER may require the
CONTRACTOR to remove the unsuitable materials and backfill to the
finished graded section with approved material. Disposal of the material
shall be at the CONTRACTOR’s expense.
Good surface drainage shall be provided around all permanent cuts to direct
surface runoff away from the cut face.
3. Rock: Unless otherwise specified, rock shall be excavated to a minimum
depth of 0.5 feet below subgrade within the limits of the channel area, and
the excavation shall be backfilled with material shown on the Drawings or as
designated by the ENGINEER. Disposal of material and replacement with
suitable approved material shall be at the CONTRACTOR’s expense.
C. Embankment Construction: Embankment construction shall consist of constructing
all fill areas, including preparation of the areas upon which they are to be placed, and
the placing and compacting of embankment material in holes, pits and other
depressions within the project area. Only approved materials shall be used in the
construction of embankments and backfills.
Approved materials shall consist of clean on-site cohesive soils or approved imported
soils. On-site cohesive soils are suitable for use as compacted fill provided the
following recommendations are met:
Percent Finer by Weight
Gradation (ASTM C136)
½-Inch 100
3/8-Inch 70 – 100
No. 4 Sieve 50 – 100
No. 200 Sieve 60 (min)
• Liquid Limit 35 (max)
• Plasticity Index 20 (max)
• In-Situ Coefficient of Permeability 1x10-6 cm/sec
Excavation and Embankment will only be paid when a significant change in grade is
required, as determined by the ENGINEER. Minor cuts and fills will be considered
incidental to the work, and will not be paid for separately under this section.
RRF Outlet Pipe 02315-4 Excavation and Embankment
On-site cohesive soils or imported soils should be placed and compacted in
horizontal lifts, using equipment and procedures that will produce recommended
moisture contents and densities throughout the lift and embankment height. On-site
or imported cohesive soils should be compacted within a moisture content range of
2% below, to 2% above optimum moisture content and compacted to 95% of the
Maximum Standard Proctor Density (ASTM D698).
When embankment is to be placed and compacted on hillsides, or when new
embankment is to be compacted against existing embankments, or when embankment
is built 1/2 width at a time, the slopes that are steeper than 4:1 when measured
longitudinally or at right angles to the adjacent ground shall be continuously benched
over those areas where it is required as the work is brought up in layers. Benching
shall be well keyed and where practical a minimum of 8 feet. Each horizontal cut
shall begin at the intersection of the original ground and the vertical sides of the
previous cuts. Material thus cut out shall be recompacted along with the new
embankment material at the CONTRACTOR’s expense.
The ground surface underlying all fills shall be carefully prepared by removing all
organic matter, scarification to a depth of 8 inches and recompacting to 95% of the
Maximum Standard Proctor Density (ASTM D698) at optimum moisture content +
or - 2% prior to fill placement.
Embankment material shall be placed in horizontal layers not exceeding 8 inches
(loose measurement) and shall be compacted to 95% of the Maximum Standard
Proctor Density (ASTM D698) at optimum moisture content + or - 2%. Effective
spreading equipment shall be used on each lift to obtain uniform thickness prior to
compacting. As the compaction of each layer progresses, continuous leveling and
manipulating will be required to assure uniform density.
For embankments which serve as berms, the downstream portion shall be “keyed”
into the subsurface soils a minimum of 3 feet to enhance the stability of the slope.
Materials which are removed from excavations beneath the water table may be over
the optimum moisture content and will require that they be dried out prior to reusing
them.
Cross hauling or other action as appropriate will be ordered when necessary to insure
that the best available material is placed in critical areas of embankments, including
the top 2 feet of all embankments. No additional payment will be made for cross
hauling ordered by the ENGINEER.
Frozen materials shall not be used in construction of embankments.
During the construction of channels, the channel bottom shall be maintained in such
condition that it will be well drained at all times.
Excavation or Embankment (Fill), and Structural Backfill work either completed or
in a stage of completion that is either eroded or washed away or becomes unstable
due to either rains, snow, snow melt, channel flows or lack of proper water control
shall be either removed and replaced, recompacted or reshaped as directed by the
RRF Outlet Pipe 02315-5 Excavation and Embankment
ENGINEER and in accordance with the Drawings and Specifications at the
CONTRACTOR’s sole expense. Removed unsuitable materials shall be hauled away
and disposed of at the CONTRACTOR’s expense. Placing of replacement materials
for removed unsuitable materials shall be purchased, placed and compacted at the
CONTRACTOR’ expense.
D. Proof rolling with a heavy rubber tired roller will be required, if designated on the
Drawings or when ordered by the ENGINEER. Proof rolling shall be done after
specified compaction has been obtained. Areas found to be weak and those areas
which failed shall be ripped, scarified, wetted if necessary, and recompacted to the
requirements for density and moisture at the CONTRACTOR’s expense.
Proof rolling shall be done with equipment and in a manner acceptable to the
ENGINEER. Proof rolling as shown on the Drawings or as ordered by the
ENGINEER shall not be measured and paid for separately, but shall be included in
the unit prices bid for the work.
3.02 EXCAVATION AND BACKFILL FOR STRUCTURES
A. Poor foundation material for any of the work shall be removed, by the
CONTRACTOR, as directed by the ENGINEER. The CONTRACTOR will be
compensated for removal and replacement of such materials in accordance with
Muck Excavation.
The CONTRACTOR is cautioned that construction equipment may cause the natural
soils to pump or deform while performing excavation work inside and on footings,
structural floor slabs, or other structure foundation areas.
Foundation materials which are: a) saturated by either surface or subsurface flows
due to the lack of adequate water control or dewatering work by the
CONTRACTOR; b) frozen for any reason; or, c) that are disturbed by the
CONTRACTOR’s work or caused to become unacceptable for foundation material
purposes by means of the CONTRACTOR’s equipment, manpower, or methods of
work shall be removed and replaced by the CONTRACTOR at his expense.
Dewatering should not be conducted by pumping from inside footing, structural floor
slab, or other structure foundation limits. This may decrease the supporting capacity
of the soils.
Care should be taken when excavating the foundations to avoid disturbing the
supporting materials. Excavation by either hand or careful backhoe soil removal,
may be required in excavating the last few inches of material to obtain the subgrade
of any item of the concrete work.
Any over-excavated subgrades that are due to the CONTRACTOR’s actions, shall be
brought back to subgrade elevations by the CONTRACTOR and at his expense in the
following manner:
RRF Outlet Pipe 02315-6 Excavation and Embankment
1. For over-excavations of 2 inches or less, either: Backfill and compact with
an approved granular materials; backfill with 1/2 inch crushed rock; or fill
within concrete at the time of the appurtenant structure concrete pour.
2. For over-excavations greater than 2 inches, backfill and compact with an
approved granular material.
All granular footings, structural floor slabs, or other structure areas shall be
compacted with a vibratory plate compactor prior to placement of concrete,
reinforcing, or bedding materials.
B. Backfill, and fill within 2 feet of and adjacent to all structures and for full height of
the walls, shall be selected non-swelling material. It shall be granular, well graded,
and free from stones larger than 3 inches. Material may be job excavated, but
selectivity will be required as determined by the ENGINEER. Refer to the Drawings
for job specific requirements. Stockpiled material, other than topsoil from the
excavation shall be used for backfilling unless an impervious structural backfill is
specified. The backfill material shall consist of either clean on-site granular materials
free of stones larger than 3 inches in diameter with no more than 20% passing the No.
200 sieve, or equivalent imported materials. All backfill around the structures shall
be consolidated by mechanical tamping. The material shall be placed in 8-inch loose
lifts within a range of 2% above to 2% below the optimum moisture content and
compacted to 95% of Maximum Standard Proctor Density (ASTM D698) for
cohesive soils, or to 70% relative density for pervious material as determined by the
relative density of cohesionless soils test, ASTM D4253.
When specified on the Drawings or as required by the ENGINEER, Class I structural
backfill shall meet the following gradation requirements:
% by Weight Passing
Sieve Size Square Mesh Sieves
2-Inch 100
No. 4 30 - 100
No. 50 10 – 60
No. 200 5 – 20
In addition, this material shall have a liquid limit not exceeding 35 and a plasticity
index of not over 6.
END OF SECTION
RRF Outlet Pipe 02320-1 Trench Excavation
and Backfill
SECTION 02320
TRENCH EXCAVATION AND BACKFILL
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This work shall consist of all labor, equipment and materials necessary for
excavation, trenching, and backfilling for utility lines and other related work.
1.02 RELATED WORK
A. Section 02240 – Water Control and Dewatering
B. Section 02315 - Excavation and Embankment
1.03 QUALITY ASSURANCE
A. In-place moisture density tests will be performed to ensure trench backfill
complies with specified requirements. The following minimum tests should be
expected to be performed.
1. Trench bedding - 1 per 200 feet
2. Backfill - 1 per 200 feet
B. Backfill compaction tests will be performed until compaction meets or exceeds
requirements. The cost of “passing” tests will be paid by the OWNER. Costs
associated with “failing” tests shall be paid by the CONTRACTOR.
Pipe bedding shall be tested prior to placement of backfill.
Testing of all bedding and backfill material shall be done in compliance with
OSHA - Excavations.
1.04 PROTECTION
A. Sheeting and Shoring:
The CONTRACTOR shall protect excavations by shoring, bracing, sheet piling,
underpinning, or other methods required to prevent any excessive widening or
sloughing of the trench which may be detrimental to human safety, to the pipe
or appurtenances being installed, or to existing facilities or structures. The latest
requirements of OSHA shall be complied with at all times including trenching
and confined space entry requirements.
RRF Outlet Pipe 02320-2 Trench Excavation
and Backfill
The CONTRACTOR shall be responsible for underpinning adjacent structures
which may be damaged by excavation work, including service utilities and pipe
chases.
B. Weather and Frost:
The CONTRACTOR shall protect bottom of excavations and soil adjacent to
and beneath foundations from frost.
1. Do not place backfill, fill, or embankment on frozen surfaces.
2. Do not place frozen materials, snow, or ice in backfill, fill, or
embankments.
3. Do not deposit, tamp, roll, or otherwise mechanically compact backfill in
water.
C. Drainage and Groundwater:
The excavation shall be graded to prevent surface water run-off into trench or
excavation.
1. Maintain excavations and trench free from water during construction.
2. Remove water encountered in the trench to the extent necessary to
provide a firm subgrade, to permit joints to be made in the dry, and to
prevent the entrance of water into the pipeline.
3. Divert surface runoff and use sumps, gravel blankets, well points, drain
lines, or other means necessary to accomplish the above.
4. Maintain the excavation or trench free from water until the structure, or
pipe to be installed therein, is completed to the extent that no damage
from hydrostatic pressure, flotation, or other cause will result.
5. Water shall be prevented from entering into previously constructed
pipe.
6. The storm pipe under construction shall not be used for dewatering.
PART 2 PRODUCTS
2.01 MATERIALS
A. Material used as stabilization in locations where the CONTRACTOR has been
directed to muck excavate shall conform to the following “Foundation Material”
gradation(s). The material shall be uniformly graded ¾” or 1 ½” rock.
RRF Outlet Pipe 02320-3 Trench Excavation
and Backfill
CDOT #467
Total Percent Passing
Sieve Size by Weight
2 1/2-Inch -
2-Inch 100
1 1/2-Inch 90 - 100
1-Inch -
¾-Inch 35 - 70
3/8-Inch 10 - 30
No. 4 0 - 5
CDOT #67
Total Percent Passing
Sieve Size by Weight
1-Inch 100
¾-Inch 90 – 100
3/8-Inch 20 – 55
No. 4 0 – 10
No. 8 0 - 5
B. Bedding and Pipe Zone Materials:
Well-Graded Sand
Total Percent Passing
Sieve Size by Weight
3/8 inch 100
No. 4 95 - 100
No. 8 80 - 100
No. 16 50 - 85
No. 30 25 - 60
No. 50 10 - 30
No. 100 2 - 10
Squeegee Sand
Total Percent Passing
Sieve Size by Weight____
3/8-Inch 100
No. 200 0 – 5
RRF Outlet Pipe 02320-4 Trench Excavation
and Backfill
CDOT #67
Total Percent Passing
Sieve Size by Weight
1-Inch 100
¾-Inch 90 – 100
3/8-Inch 20 – 55
No. 4 0 – 10
No. 8 0 - 5
Note: It will be the responsibility of the CONTRACTOR to locate material
meeting the Specifications, to test its ability to consolidate to at least
70% relative density, and to secure approval of the ENGINEER before
such material is delivered to the project. Relative density shall be
determined as stipulated in ASTM D4253.
C. Backfill:
Backfill shall meet the following requirements:
Use only backfill for trenches which is free from rocks, large roots, other
vegetation or organic matter, and frozen material. No rocks greater than 3 inches
in diameter shall be allowed. Backfill material shall be suitable for future
pavement construction over all trenches.
D. Cut-Off Walls:
1. Sand Cut-Off Walls: Sand shall meet the requirements of ASTM C33.
PART 3 EXECUTION
3.01 GENERAL
The following procedures shall be followed by the CONTRACTOR in sequencing his
work.
A. No more than 150 feet of trench shall be left open at any time. The entire trench
shall be backfilled to within 50 feet of the open trench upon conclusion of each
day’s work. The trench shall not be backfilled until the pipe installation is
reviewed by the ENGINEER.
B. Trench shall be backfilled within 100 feet of the pipe installation at all times.
C. Clean-up shall be maintained within 400 feet of the trench excavation.
Prior to placement in the trench, all pipe, fittings, and appurtenances shall be cleaned and
examined for defects by the CONTRACTOR. If found defective, the CONTRACTOR
RRF Outlet Pipe 02320-5 Trench Excavation
and Backfill
shall reject the defective pipe, fitting, or appurtenance. The CONTRACTOR shall advise
the ENGINEER of all defective materials.
All surplus excavation shall be placed, in an orderly manner. If material is stockpiled on
private property, written permission must be obtained from the property owner and
provided to the ENGINEER.
All muck excavation, bedding, and pipe zone material shall be imported unless otherwise
designated by the OWNER’s geotechnical engineer.
Upon completion of the work, all plants, rubbish, unused materials, concrete forms, and
other like material shall be removed from the job site. The site shall be left in a state of
order and cleanliness.
3.02 MAINTENANCE AND CORRECTION
A. Scarify surface, reshape, and compact to required density completed or partially
completed areas of work disturbed by subsequent construction operations or by
adverse weather.
B. Maintain and correct backfill, fill, and embankment settlement and make necessary
repairs to pavement structures, seeding, and sodding which may be damaged as a
result of settlement for the guarantee period.
C. The CONTRACTOR may perform such maintenance and correction by subcontract.
3.03 OBSTRUCTIONS AND DISPOSAL OF WASTE MATERIAL
The CONTRACTOR shall remove obstructions that do not require replacement from
within the trench or adjacent areas such as tree roots, stumps, abandoned piling, buildings
and concrete structures, frozen material, logs, and debris of all types without additional
compensation. The ENGINEER may, if requested, make changes in the trench alignment
to avoid major obstructions, if such alignment changes can be made within the work
limits without adversely affecting the intended function of the facility. Excavated
materials unsuitable for backfill or not required for backfill shall be disposed of in
accordance with local regulations.
3.04 TRENCH EXCAVATION
All existing asphalt or concrete surfacing shall be saw cut vertically in a straight line, and
removed from the job site prior to starting the trench excavation. This material shall not
be used in any fill or backfill.
The trench shall be excavated so that a minimum clearance of 6 inches is maintained on
each side of the pipe for proper placement and densification of the bedding or backfill
material. The maximum clearance measured at the spring line of the pipe shall be 18
inches regardless of the type of pipe, type of soil, depth of excavation, or the method of
densifying the bedding and backfill.
Except as otherwise dictated by construction conditions, the excavation shall be of such
dimensions as to allow for the proper pipe installation and to permit the construction of
RRF Outlet Pipe 02320-6 Trench Excavation
and Backfill
the necessary pipe connections. Care shall be taken to insure that the excavation does not
extend below established grades. If the excavation is made below such grades, the excess
excavation shall be filled in with sand or graded gravel deposited in horizontal layers not
more than 6 inches in thickness after being compacted and shall be moistened as required
to within 2% of the optimum moisture content required for compaction of that soil. After
being conditioned to have the required moisture content, the layers shall be compacted to
the required density.
The CONTRACTOR shall stockpile excavated materials in a safe manner. Stockpiles
shall be graded for proper drainage.
The CONTRACTOR shall place and grade the trench base to the proper grade ahead of
pipe laying. The invert of the trench shall be compacted to provide a firm unyielding
support along entire pipe length.
3.05 SURPLUS EXCAVATION MATERIAL
Surplus excavation shall be disposed of by the CONTRACTOR at his expense.
3.06 FOUNDATIONS ON UNSTABLE SOILS
If the bottom of the excavation is soft or unstable, and in the opinion of the ENGINEER,
cannot satisfactorily support the pipe or structure, a further depth and width shall be
excavated and refilled to 6 inches below grade with material specified in Section 02320
2.01-A as Foundation Material. This material shall provide a firm foundation for the pipe
or structure. From 6 inches below grade to grade, the appropriate bedding material shall
be placed to provide support for the pipe or structure.
3.07 PIPE BEDDING
After completion of the trench excavation and proper preparation of the foundation, a
minimum of six (6) inches of bedding material shall be placed on the trench bottom for
support under the pipe (See construction details). Bell holes shall be dug deep enough to
provide a minimum of 2 inches of clearance between the bell and the bedding material.
All pipe shall be installed in such a manner as to insure full support of the pipe barrel
over its entire length. After the pipe is adjusted for line and grade and the joint is made,
the bedding material shall be carefully placed and tamped under the haunches of the pipe.
For all types of pipe, the limits of bedding shall be as shown on the trench section details
on the Drawings.
Bedding shall be compacted to 70% relative density in accordance with ASTM D4253.
Care shall be exercised to assure sufficient tamping under the pipe to achieve uniform
support.
RRF Outlet Pipe 02320-7 Trench Excavation
and Backfill
3.08 BACKFILL AND COMPACTION
A. Pipes:
The pipe trench shall be backfilled to the limits as shown on the Drawings. The
backfill in all areas shall be compacted by vibrating, tamping, or a combination
thereof to 70% relative density for sand material as determined by the relative
density of cohesionless soils test, ASTM D4253, or to 95% of the Maximum
Standard Proctor Density for cohesive soils as determined by ASTM D698.
All backfill shall be brought up to equal height along each side of the pipe in
such a manner as to avoid displacement. Bedding shall be distributed in 6-inch
maximum lifts over the full width of the trench. Wet, soft or frozen material,
asphalt chunks, or other deleterious substances shall not be used for backfill. If
the excavated material is not suitable for backfill, as determined by the
ENGINEER, suitable material shall be hauled in and utilized and the rejected
material hauled away and disposed of.
Backfilling shall be conducted at all times in a manner to prevent damage to the
pipe or its coating and shall be kept as close to the pipe laying operation as
practical.
Backfilling procedures shall conform to the additional requirements, if any, of
appropriate agencies or private right-of-way agreements.
3.09 RESTORATION
A. Unsurfaced Areas:
All surface cuts shall be, as a minimum, restored to a condition equal to that prior
to construction.
B. Surfaced Areas:
All surface cuts shall be, as a minimum, restored to a condition equal to that prior
to construction. All gravel or paved streets shall be restored in accordance with
the regulations and requirements of the agency having control or jurisdiction over
the street, roadway, or right-of-way.
C. Grassed or Landscaped Areas:
In landscaped or agricultural areas, topsoil, to a depth of 12 inches, shall be
removed from the area of general disturbance and stockpiled. After installation
of all pipelines, appurtenances and structures and completion of all backfill and
compaction, the stockpiled topsoil shall be redistributed evenly over all disturbed
areas. Care should be taken to conform to the original ground contour or final
grading plans.
END OF SECTION
RRF Outlet Pipe 02320-8 Trench Excavation
and Backfill
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 02370-1 Erosion and Sediment Control
SECTION 02370
EROSION AND SEDIMENT CONTROL
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This work shall consist of temporary measures needed to control erosion and water
pollution. These temporary measures shall include, but not be limited to, berms,
dikes, dams, sediment basins, fiber mats, netting, gravel, mulches, grasses, slope
drains and other erosion control devices or methods. These temporary measures shall
be installed at the locations where needed to control erosion and water pollution
during the construction of the project, and as directed by the ENGINEER, and as
shown on the Drawings.
B. The erosion control measures presented in the Drawings serves as a minimum for the
requirements of erosion control during construction. The CONTRACTOR has the
ultimate responsibility for providing adequate erosion control and water quality
throughout the duration of the project. Therefore, if the provided plan is not working
sufficiently to protect the project areas, then the CONTRACTOR shall provide
additional measures as required to obtain the required protection. The
CONTRACTOR shall include in his bid price for erosion control a minimum of all
items shown on the Erosion Control Plan and any additional items that may be
needed to control erosion and water pollution.
1.02 RELATED SECTIONS
A. Section 02240 – Water Control and Dewatering
1.03 SUBMITTALS
A. Construction schedule for Erosion Control per subsection 3.01
B. Sequencing Plan per subsection 3.12
PART 2 PRODUCTS
2.01 MATERIALS
A. Materials may include hay bales, straw, fiber mats, fiber netting, wood cellulose,
fiber fabric, gravel and other suitable materials, and shall be reasonably clean, free of
deleterious materials, and certified weed free. All materials shall be submitted for
approval prior to installation.
B. Temporary grass cover (if required) shall be a quick growing species suitable to the
area, which will provide temporary cover and will not later compete with the grasses
sown for permanent cover. All grass seed shall be approved by the ENGINEER prior
to installation.
C. Fertilizer and soil conditioners shall be approved by the ENGINEER prior to
installation.
RRF Outlet Pipe 02370-2 Erosion and Sediment Control
PART 3 EXECUTION
3.01 CONSTRUCTION REQUIREMENTS
A. When so indicated in the Contract Documents, or when directed by the ENGINEER,
the CONTRACTOR shall prepare construction schedules for accomplishing
temporary erosion control work. These schedules shall be applicable to clearing and
grubbing, grading, structural work, construction, etc. He shall also submit for
acceptance his proposed method of erosion control on haul roads and borrow pits and
his plan for disposal of waste material. Work shall not be started until the erosion
control schedules and methods of operations have been accepted.
B. The CONTRACTOR will be required to incorporate all permanent erosion control
features into the project at the earliest practicable time as outlined in his accepted
schedule. Temporary erosion control measures will then be used to correct
conditions that develop during construction.
C. The erosion control features installed by the CONTRACTOR shall be adequately
maintained by him until the project is accepted.
D. In the event of conflict between these requirements and erosion and pollution control
laws, rules, or regulations of other Federal, State or local agencies, the more
restrictive laws, rules, or regulations shall apply.
3.02 PERMITS AND COMPLIANCE
A. The CONTRACTOR must apply for and obtain a Construction Dewatering Permit
402 from and prepare a Stormwater Management Plan (SWMP) for the Colorado
Department of Public Health and Environment. All costs for these permits shall be
the responsibility of the CONTRACTOR. This permit requires that specific actions
be performed at designated times. The CONTRACTOR is legally obligated to
comply with all terms and conditions of the permit including testing for effluent
limitations.
The CONTRACTOR shall allow the Colorado Department of Public Health and
Environment or other representatives to enter the site to test for compliance with the
permit. Non compliance with the permit can result in stoppage of all work.
The CONTRACTOR must apply for and obtain a State of Colorado Stormwater
Discharge Permit. All costs for this permit shall be the responsibility of the
CONTRACTOR. This permit requires that specific actions be performed at
designated times. The CONTRACTOR is legally obligated to comply with all terms
and conditions of the permit. Non compliance with the permit can result in stoppage
of all work.
In addition to permit requirements, the OWNER shall also monitor the
CONTRACTOR’s erosion control and work methods. If the overall function and
RRF Outlet Pipe 02370-3 Erosion and Sediment Control
intent of erosion control is not being met, then the OWNER shall require the
CONTRACTOR to provide additional measures as required to obtain the desired
results. Costs for any additional erosion control measures shall be the responsibility
of the CONTRACTOR, since he has the ultimate responsibility for providing
adequate erosion control and water quality for the duration of the project.
3.03 STABILIZATION OF DISTURBED AREAS
A. Temporary sediment control measures shall be established within 5 days from time of
exposure/disturbance. Permanent erosion protection measures shall be established
within 5 days after final grading of areas.
3.04 PROTECTION OF ADJACENT PROPERTIES
A. Properties adjacent to the site of a land disturbance shall be protected from sediment
deposition. In addition to the erosion control measures required on the Drawings,
perimeter controls may be required if damage to adjacent properties is likely.
Perimeter controls include, but are not limited to, a vegetated buffer strip around the
lower perimeter of the land disturbance, sediment barriers such as straw bales and silt
fences; sediment basins; or a combination of such measures. Vegetated buffer strips
may be used only where runoff in sheet flow is expected and should be at least 20
feet in width.
3.05 TIMING AND STABILIZATION OF SEDMENT AND EROSION CONTROL
MEASURES
A. Sediment barriers, perimeter dikes, and other measures intended to either trap
sediment or prevent runoff from flowing over disturbed areas must be constructed as
a first step in grading and be made functional before land disturbance takes place.
Earthen structures such as dams, dikes, and diversions must be stabilized within 5
days of installation. Stormwater outlets must also be stabilized prior to any upstream
land disturbing activities.
3.06 STABILIZATION OF WATERWAYS AND OUTLETS
A. All on-site stormwater conveyance channels used by the CONTRACTOR for
temporary erosion control purposes shall be designed and constructed with adequate
capacity and protection to prevent erosion during storm and runoff events.
Stabilization adequate to prevent erosion shall also be provided at the outlets of all
pipes and channels.
3.07 STORM SEWER INLET PROTECTION
A. All storm sewer inlets which are made operable during construction or which drain
stormwater runoff from a construction site shall be protected from sediment
deposition by the use of filters.
RRF Outlet Pipe 02370-4 Erosion and Sediment Control
3.08 WORKING IN OR CROSSING WATERCOURSES AND WETLANDS
A. Construction vehicles should be kept out of watercourses to the extent possible.
Where in-channel work is necessary, precautions must be taken to stabilize the work
area during construction to minimize erosion. The channel (including bed and banks)
must always be restabilized immediately after in-channel work is completed.
B. Where a live (wet) watercourse must be crossed by construction vehicles during
construction, a temporary crossing must be provided for this purpose. If the crossing
involves a pipe or other type of conduit placed in the watercourse, the pipe shall be
sized to allow unrestricted passage of all flows anticipated to be carried by the
watercourse. Likewise, installation of a span-type crossing across the watercourse
shall be placed so no restriction of anticipated flows occur.
3.09 CONSTRUCTION ACCESS ROUTES
A. Wherever construction vehicles enter or leave a construction site, a stabilized
construction entrance and Tracking Pad are required. Where sediment is transported
onto a public road surface, the roads shall be cleaned thoroughly at the end of each
day. Sediment shall be removed from roads by shoveling or sweeping and be
transported to a sediment controlled disposal area. Street washing shall be allowed
only after sediment is removed in this manner.
3.10 DISPOSITION OF TEMPORARY MEASURES
A. All temporary erosion and sediment control measures shall be disposed of within 30
days after final site stabilization is achieved or after the temporary measures are no
longer needed as determined by the OWNER. Trapped sediment and other disturbed
soil areas resulting from the disposition of temporary measures shall be permanently
stabilized to prevent further erosion.
3.11 MAINTENANCE
A. All temporary and permanent erosion and sediment control practices must be
maintained and repaired as needed to assure continued performance of their intended
function.
3.12 SEQUENCING
A. The CONTRACTOR shall submit a sequencing plan for approval for erosion control
in conformance with his overall Construction Plan for approval by the OWNER.
Changes to the Erosion Control Sequencing Plan may be considered by the OWNER
only if presented in writing by the CONTRACTOR.
3.13 SUBSTANTIAL COMPLETION OF EROSION CONTROL MEASURES
A. At the time specified in the Contract Documents, and subject to compliance with
specified materials and installation requirements, the CONTRACTOR will receive a
Substantial Completion Certificate for temporary erosion control measures.
3.14 MAINTENANCE OF EROSION CONTROL MEASURES AFTER SUBSTANTIAL
COMPLETION
RRF Outlet Pipe 02370-5 Erosion and Sediment Control
A. The CONTRACTOR will be responsible for maintaining temporary erosion control
measures as specified in the Drawings and Contract Documents until such time as the
disturbed drainage area has stabilized as determined by the ENGINEER and the
OWNER.
3.15 FINAL COMPLETION AND ACCEPTANCE OF EROSION CONTROL MEASURES
A. After the ENGINEER and OWNER have determined that the drainage area has
stabilized, the CONTRACTOR shall remove all remaining temporary erosion control
measures. Any damage to the site shall be repaired to the satisfaction of the
ENGINEER and at no cost to the OWNER.
END OF SECTION
RRF Outlet Pipe 02370-6 Erosion and Sediment Control
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 02375-1 Riprap
SECTION 02375
RIPRAP AND BEDDING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The work of this section shall include excavation, grading and installation of all
riprap, and bedding placed at the locations shown on the Drawings. The materials to
be used for the construction of such structures shall be as specified herein.
1.02 RELATED SECTIONS
A. Section 02240 – Water Control and Dewatering
B. Section 02315 – Excavation and Embankment
1.03 SUBMITTALS
A. The CONTRACTOR shall cooperate with the ENGINEER in obtaining and
providing samples of all specified materials. The CONTRACTOR shall submit
certified laboratory test certificates for all items required in this section.
PART 2 PRODUCTS
2.01 MATERIALS
A. Riprap:
Riprap used shall be the type designated on the Drawings and shall conform to the
following:
Riprap Designation
% Smaller Than Given
Size By Weight
Intermediate Rock
Dimension (Inches)
d50
*
(Inches)
Type VL (Class 6)
70 - 100
50 - 70
35 - 50
2 - 10
12
9
6
2
6
Type L (Class 9)
70 - 100
50 - 70
35 - 50
2 - 10
15
12
9
3
9
Type M (Class 12)
70 - 100
50 - 70
35 - 50
2 - 10
21
18
12
4
12
RRF Outlet Pipe 02375-2 Riprap
Type H (Class 18)
70 - 100
50 - 70
35 - 50
2 - 10
30
24
18
6
18
Type VH (Class 24) 70 - 100
50 - 70
35 - 50
2 - 10
42
33
24
9
24
* d50
= Mean Particle Size
1. The riprap designation and total thickness of riprap shall be as shown on the
Drawings. The maximum stone size shall not be larger than the thickness of
the riprap.
2. The specific gravity of the riprap shall be 2.65 or greater.
3. Neither width nor thickness of a single stone of riprap shall be less than 1/3
of its length.
4. Broken concrete or asphalt pavement shall not be acceptable for use in the
work. Rounded riprap (river rock) is not acceptable unless specifically
designated on the Drawings.
5. The color of the riprap shall be as approved by the OWNER prior to delivery
to the project site. Color shall be consistent on the entire project and shall
match the color of rock to be used for all other portions of the work. Color
required for this project shall be green-gray rock.
6. Minimum density for acceptable riprap shall be 165 pounds per cubic foot.
The specific gravity shall be according to the bulk-saturated, surface-dry
basis, AASHTO T85.
7. The riprap shall have a percentage loss of not more than 40 percent after 500
revolutions when tested in the Los Angeles machine in accordance with
AASHTO Test T96.
8. The riprap shall have a percentage loss of not more than 10 percent after 5
cycles when tested in accordance with AASHTO Test T104 for ledge rock
using sodium sulfate.
9. The riprap shall have a percentage loss of not more than 10 percent after 12
cycles of freezing and thawing when tested in accordance with AASHTO
Test T103 for ledge rock, procedure A.
10. Rock shall be free of calcite intrusions.
11. Each load of riprap shall be reasonably well graded from the smallest to the
largest size specified. Stones smaller than the 2-10 percent size will not be
permitted in an amount exceeding 10 percent by weight of each load.
Control of gradation will be by visual inspection. However in the event the
ENGINEER determines the riprap to be unacceptable, the ENGINEER will
RRF Outlet Pipe 02375-3 Riprap
pick 2 random truck loads to be dumped and checked for gradation.
Mechanical equipment and labor needed to assist in checking gradation shall
be provided by the CONTRACTOR at no additional cost.
B. Bedding:
1. Gradation for Granular Bedding
U.S. Standard Percent by Weight Passing Square Mesh Sieves
Sieve Size Type I Type II
3 Inch 90 - 100
1-½ Inch
¾ Inch 20 - 90
3/8 Inch 100
No. 4 95 – 100 0 - 20
No. 16 45 - 80
No. 50 10 - 30
No. 100 2 - 10
No. 200 0 - 2 0 - 3
Granular bedding designation and total thickness of bedding shall be as shown on the
Drawings. Granular bedding shall meet the same requirements for specific gravity,
absorption, abrasion, sodium sulfate soundness, and freeze-thaw durability as
required for riprap and specified above.
C. Geotextile Fabric:
Where soil conditions dictate, geotextile fabric shall be placed directly on excavated
slopes, channel beds, etc. prior to the placement of any riprap bedding or riprap. The
extent and location of geotextile placement will be shown on the Drawings.
Geotextile fabric shall be Trevira S1120 or approved equal under all riprap.
PART 3 EXECUTION
3.01 CONSTRUCTION REQUIREMENTS
A. Channel slopes, bottoms, or other areas that are to be protected with riprap shall be
free of brush, trees, stumps, and other objectionable material and be graded to a
smooth compacted surface. The CONTRACTOR shall excavate areas to receive
RRF Outlet Pipe 02375-4 Riprap
riprap to the subgrade for granular bedding. The subgrade for bedding materials shall
be stable. If unsuitable materials are encountered, they shall be removed and
replaced as Muck Excavation in accordance with Section 02315 of the Specifications.
Unsuitable materials shall be disposed of from the site by the CONTRACTOR at his
expense. After an acceptable subgrade for granular bedding material is established,
the bedding shall be immediately placed and leveled to the subgrade elevation.
Immediately following this, the riprap shall be placed. If bedding material is
disturbed for any reason, it shall be replaced and graded at the CONTRACTOR’s
expense. In-place bedding materials shall not be contaminated with soils, debris or
vegetation before the riprap is placed. If contaminated, the bedding material shall be
removed and replaced at the CONTRACTOR’s expense.
3.02 PLACEMENT
A. Following acceptable placement of geotextile fabric, granular bedding, riprap
placement shall commence as follows:
1. Machine Placed Riprap: Riprap shall be placed on the prepared slope or
channel bottom areas in a manner which will produce a reasonably well-
graded mass of stone with the minimum practicable percentage of voids.
Riprap shall be machine placed, unless otherwise stipulated in the Drawings
or Specifications.
When riprap is placed on slopes, placement shall commence at the bottom of
the slopes working up the slope. Place the riprap in a stepped fashion with
the bottom of the uphill riprap below the top of the downhill riprap by half of
the height of the riprap minimum.
The entire mass of riprap shall be placed on either channel slopes or bottoms
so as to be in conformance with the required gradation mixtures and to lines,
grades, and thickness shown on the Drawings. Riprap shall be placed to its
full course thickness at one operation and in such a manner as to avoid
displacing the underlying bedding material. Placing of riprap in layers, or by
dumping into chutes, or by similar methods shall not be permitted.
All material going into riprap protection for channel slopes or bottoms shall
be so placed and distributed that there will be no large accumulations of
either the larger or smaller sizes of stone. Some hand placement may be
required to achieve this distribution.
It is the intent of these Specifications to produce a fairly compact riprap
protection in which all sizes of material are placed in their proper
proportions. Unless otherwise authorized by the ENGINEER, the riprap
protection shall be placed in conjunction with the construction of
embankments or channel bottoms with only sufficient delay in construction
of the riprap protection, as may be necessary, to allow for proper
construction of the portion of the embankment and channel bottom which is
to be protected. The CONTRACTOR shall maintain the riprap protection
RRF Outlet Pipe 02375-5 Riprap
until accepted. Any material displaced for any reason shall be replaced to the
lines and grades shown on the Drawings at no additional cost to the
OWNER. If the bedding materials are removed or disturbed, such material
shall be replaced prior to replacing the displaced riprap.
2. Hand Placed Riprap: Hand placed riprap shall be performed during machine
placement of riprap and shall conform to all the requirements of Section
02375 PART 1 above. Hand placed riprap shall also be required when the
depth of riprap is less than 2 times the nominal stone size, or when required
by the Drawings or Specifications.
After the riprap has been placed, hand placing or rearranging of individual
stones by mechanical equipment shall be required to the extent necessary to
secure a flat uniform surface and the specified depth of riprap, to the lines
and grades as shown on the Drawings.
3. Soil Replacement In and Over Riprap: Where riprap is designated to be
buried, place onsite excavated material that is free from trash and organic
matter in riprap voids by washing and rodding. Prevent excessive washing of
material into stream. When voids are filled and the surface accepted by the
ENGINEER, place a nominal 6 inches of soil over the area, or as designated
on the Drawings. Fine grade, seed, and mulch per the Specifications.
4. Rejection of Work and Materials: The ENGINEER shall reject placed riprap
which does not conform to this Section and the CONTRACTOR shall
immediately remove and relay the riprap to conform with said sections.
Riprap shall be rejected, which is either delivered to the job site or placed,
that does not conform to this Section. Rejected riprap shall be removed from
the project site by the CONTRACTOR and at his expense.
5. Geotextile fabric shall be installed according to the manufacturer’s
specifications. Material proposed for use shall be submitted and approved by
the ENGINEER prior to installation.
END OF SECTION
RRF Outlet Pipe 02375-6 Riprap
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RRF Outlet Pipe 02610-1 Reinforced Concrete Pipe
SECTION 02610
REINFORCED CONCRETE PIPE
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This section includes construction of reinforced concrete pipe for storm drainage
and culverts, including appurtenances normally installed as a part of these systems.
Construction may include surface preparation; trench excavation; shoring;
dewatering; lay, align and join pipe, installation of appurtenances; bedding and
backfilling; surface restoration; and, other related work.
1.02 RELATED SECTIONS
A. Section 02240 – Water Control and Dewatering
B. Section 02320 – Trench Excavation and Backfilling
1.03 SUBMITTALS
A. The CONTRACTOR shall cooperate with the ENGINEER in obtaining and
providing samples of all specified materials. The CONTRACTOR shall submit
certified laboratory test certificates for all items required in this section.
1.04 QUALITY CONTROL
A. All pipe shall be inspected by the ENGINEER prior to installation.
All pipe which does not meet the requirements of Part 2 of this section will be
rejected and replaced at the CONTRACTOR’s expense.
PART 2 PRODUCTS
The CONTRACTOR shall install storm sewer pipe of the type, diameter, load class, wall thickness
and protective coating that is shown on the Drawings. All pipe and appurtenances used shall
conform to the following requirements:
2.01 MATERIALS
A. Precast Concrete Pipe
1. General: Precast concrete pipe which does not conform to the applicable
ASTM Standard Specifications listed below or to any other requirement
specified herein will not be approved for storm sewer, culvert, or sanitary
sewer installations.
2. Allowable ASTM Specifications: All material, manufacturing operations,
testing, inspection, and making of concrete pipe shall conform to the
RRF Outlet Pipe 02610-2 Reinforced Concrete Pipe
requirements of the appropriate allowable ASTM Standard Specifications,
latest revision thereof, listed below:
ASTM C-14 - Concrete Sewer, Storm Drain, and Culvert Pipe
ASTM C-76 - Reinforced Concrete Culvert, Storm Drain and Sewer Pipe
ASTM C-361 - Reinforced Concrete Low-Head Pressure Pipe
ASTM C-506 - Reinforced Concrete Arch Culvert, Storm Drain and
Sewer Pipe
ASTM C-507 - Reinforced Concrete Elliptical Culvert, Storm Drain and
Sewer Pipe
3. Diameter of Pipe: The diameter indicated on the Drawings shall mean the
inside diameter of the pipe.
4. Wall Thickness and Class of Pipe: The wall thickness and reinforcing steel,
if any, shall comply with the appropriate ASTM Specification and the class
of pipe designated on the Drawings. No elliptical reinforcing will be
allowed in any circular pipe. All jacking pipe shall be specifically designed
by the pipe manufacturer to withstand all forces that the pipe may be
subjected to during the jacking operations.
5. Fittings and Specials: Details of all fittings and specials shall be furnished
for approval by the ENGINEER. Fittings and specials shall be made up of
pipe segments having the same structural qualities as the adjoining pipe and
shall have the interior treated the same as the pipe.
6. Lifting Holes: Lifting holes will be allowed for storm sewer pipe provided,
however, only two lifting holes per pipe length will be allowed and all pipe
shall be installed such that the lifting holes are in the crown of the pipe. All
lifting holes shall be properly grouted with cement mortar immediately
after the pipe is installed prior to commencement of any backfilling.
7. Cement: Unless otherwise required by the ENGINEER, or specified
otherwise on the Drawings, Type II Modified Portland Cement complying
with the requirements of ASTM Designation C-150 will normally be
acceptable in the manufacture of concrete pipe.
8. Acceptance: In addition to any deficiencies not covered by the applicable
ASTM Specifications, concrete pipe which has any of the following visual
defects will not be accepted:
a. Porous spots on either the inside or the outside surface of a pipe
having an area of more than 10 square inches and a depth of more
than 1/2 inch.
b. Pipe which has been patched to repair porous spots, cracks, or
other defects, when such patching was not approved by the
ENGINEER.
RRF Outlet Pipe 02610-3 Reinforced Concrete Pipe
c. Exposure of the reinforcement when such exposure would indicate
that the reinforcement is misplaced.
d. Pipe that has been damaged during shipment or handling even
previously approved before shipment.
e. Concrete pipe, at delivery to the job site, will be at least 5 days
(120 hours) old.
Acceptance of the pipe at point of delivery will not relieve the
CONTRACTOR of full responsibility for any defects in materials
due to workmanship.
9. Marking: The following shall be clearly marked on both the interior and
exterior surface of the pipe:
a. ASTM Specifications
b. Class and Size
c. Date of Manufacture
d. Name or Trademark of Manufacturer
10. Joints: The joint design for concrete pipe shall be bell and spigot or tongue
and groove. Where rubber gaskets are required or specified, the bell or
tongue shall be grooved to properly contain and seat the rubber gasket. The
joint assemblies shall be accurately formed so that when each pipe section
is forced together in the trench the assembled pipe shall form a continuous
watertight conduit with smooth and uniform interior surface, and shall
provide for slight movement of any piece of the pipeline due to expansion,
contraction, settlement or lateral displacement. If a gasketed joint is used,
the gasket shall be the sole element of the joint providing water tightness.
The ends of the pipe shall be in planes at right angles to the longitudinal
centerline of the pipe, except where bevel-end pipe is required. The ends
shall be furnished to regular smooth surfaces.
All joints and jointing material shall conform to the following minimum
requirements. Jointing material used shall be indicated on the drawings.
a. Rubber Gasketed Joints: Rubber gasket joints for tongue and
groove or bell and spigot pipe shall consist of an O-ring rubber
gasket or other approved gasket configuration and shall conform to
the requirements of the appropriate ASTM Specification of the
pipe designated. Unless otherwise approved by the ENGINEER,
the standard joint configuration shall be similar and equal to the
Bureau of Reclamation’s “R-4” joint designation.
1) Gaskets: Gaskets may be either natural rubber or neoprene
conforming to ASTM Designation C-443. All gaskets
shall be stored in a cool place, preferably at a temperature
of less than 70 degrees Fahrenheit (F.), and in no case shall
the gaskets be stored in the open, or exposed to the direct
RRF Outlet Pipe 02610-4 Reinforced Concrete Pipe
rays of the sun. No gaskets that show signs of
deterioration, such as surface cracking or checking, shall
be installed in a pipe joint. The neoprene gaskets used
when the air temperature is 10F or lower, shall be warmed
to temperature of 60F for a period of 30 minutes before
being placed on the pipe.
b. Mortared Joints: Mortared joints shall only be used in special
circumstances and only where specifically authorized by the
ENGINEER. It is the intent of these Specifications to limit the use
of mortared joints to the minimum extent possible except where
unusual field conditions require deviation from the jointing
material specified.
c. Flexible Plastic Joint Sealing Compound: Preformed plastic
gaskets conforming to the minimum and application requirements
set forth below may be used as a joint sealant for storm sewer
installations in lieu of rubber gaskets. Flexible joint sealing
material shall be ‘RAMNEK’ or approved equal.
1) The flexible plastic gasket shall be in conformance with
Federal Specification SS-S-00210, “Sealing Compound,
Preformed Plastic for Expansion Joints and Pipe Joints”.
2) The plastic sealing compound shall be packaged in
extruded preformed rope-like shape of proper size to
completely fill the joint when fully compressed. The
material shall be protected in a suitable, removable, two-
piece wrapper so that no wrapper may be removed as the
compound is applied to the joint surface without disturbing
the other wrapper, which remains attached to the
compound for protection. The sealing compound shall be
impermeable to water, have immediate bonding strength to
the primed concrete surface and shall maintain permanent
plasticity, resistance to water, acids, and alkalis.
3) All surfaces of the tongue and groove or bell and spigot
shall be primed with an approved priming compound prior
to the installation of the sealing compound. The
installation of the priming compound and the sealing
compound shall be accomplished in strict accordance with
the manufacturer’s instructions, as to the method of
application, quantity of material, the grade of the materials,
and the application temperatures.
.
4) Gaskets installed on both male and female joint surfaces
(double gasketing) will be required for all deflected pipe
joints, as well as arch or elliptical pipe joints.
d. Shop Drawings: Unless otherwise specified, the CONTRACTOR
shall submit to the ENGINEER for approval shop drawings
showing the exact dimension of the joints including the permissible
tolerances for each size of pipe being furnished and the size, type
RRF Outlet Pipe 02610-5 Reinforced Concrete Pipe
and locations of gasket materials. Approval of the joint detail
drawings will not relieve the CONTRACTOR of any
responsibilities to meet all of the requirements of these
Specifications, or of the responsibility for correctness of the
CONTRACTOR’s details.
e. Acceptable Joint for Concrete Storm Sewer Installations: Except
where a specified type of pipe joint or jointing material is noted on
the Drawings, joints and jointing material for concrete sewer
installations shall be in conformance with the following table.
Allowable Type of Joints
Application Tongue & Groove Bell & Spigot Bell & Spigot
w/flexible plastic w/B.O.R. w/B.O.R.
sealing compound Type R-4 Joint Type R-2
(ASTM C-361) Joint
1. Non-Pressurized Storm Sewers
a. Open Cut 36” & larger X X
b. Open Cut 15” to 33” X X X
2. Pressurized Storm Sewers
a. Open Cut X X
NOTE:
1) Where more than one type of joint is acceptable, the CONTRACTOR may
use either type at his option subject to the physical characteristics and
manufacturing method of the pipe.
2) All elliptical pipe or arch pipe shall be double gasketed with a flexible plastic
joint sealing compound.
3) In addition to the gasket requirements, if the average joint gap in 36-inch
diameter pipe or larger pipe exceeds 3/4-inch, the void shall be filled and
troweled smooth with an approved non-metallic, non-shrink grout
conforming to ASTM C-827 or a flexible plastic sealant conforming to
Federal Specification SS-S-00210 so to provide a smooth interior surface at
the joint.
4) For pipe sizes 18-, 24-, 27-, 30-, and 36-inch in diameter, the reinforcement in
the bell and spigot shall conform to ASTM C-76 for the class of pipe
specified or to ASTM C-361 for a minimum pressure head of 25 foot,
whichever is greater.
11. Protective Coatings: Normally, no additional exterior or interior protective coatings
will be required for concrete pipe. However, whenever adverse corrosive conditions
warrant additional interior protection, those pipe segments will be noted on the
Drawings.
RRF Outlet Pipe 02610-6 Reinforced Concrete Pipe
PART 3 EXECUTION
3.0.1 SURFACE PREPARATION
A. Within Easements, Cultivated, Landscaped, or Agricultural Area: All vegetation,
such as brush, sod, heavy growth of grass or weeds, decayed vegetable matter,
rubbish and other unsuitable material within the area of excavation and trenchside
storage shall be stripped and disposed of in accordance with the requirements of
Section 02230.
Topsoil shall be removed from the area to be excavated and stockpiled, or, the
CONTRACTOR may elect to import topsoil to replace that lost during excavation.
Topsoil shall be removed to a depth of 8 inches or the full depth of the topsoil,
whichever is less.
B. Within Unpaved Roadway Areas: The CONTRACTOR shall strip the cover
material from graveled roadways or other developed, but unpaved traffic surfaces to
the full depth of the existing surfacing. The surfacing shall be stockpiled to the
extent that it is acceptable and useable for restoration purposes.
C. Within Paved Areas: The removal of pavement, sidewalks, driveways, or curb and
gutter shall be performed in a neat and workmanlike manner.
Pavement, sidewalks, driveways, or curb and gutter shall be cut with a power saw,
pavement breaker, or other approved method of scoring, to a minimum depth of 2”,
prior to breaking or excavation. The pavement shall be cut vertically, in straight
lines and avoiding acute angles.
Any overbreak, separation, or other damage to the existing bituminous or concrete
outside the designated cut lines shall be replaced at the CONTRACTOR’s expense.
Excavated paving materials shall be removed from the job site and shall not be used
as fill or backfill.
3.02 DEWATERING
A. All pipe trenches and excavation for structures and appurtenances shall be kept free
of water during pipe laying and other related work. The method of dewatering shall
provide for a dry foundation at the final grades of excavation in accordance with
Section 02240. Water shall be disposed of in a manner that does not inconvenience
the public or result in a menace to public health. Pipe trenches shall contain enough
backfill to prevent pipe flotation before dewatering is discontinued. Dewatering
shall continue until such time as it is safe to allow the water to rise in the excavation.
3.03 LAYING, ALIGNING, AND JOINING PIPE
A. Storm sewer pipe shall be installed in accordance with the manufacturer’s
recommendations for installing the type of pipe used, unless otherwise shown on the
Drawings.
RRF Outlet Pipe 02610-7 Reinforced Concrete Pipe
Proper equipment, implements, tools and facilities shall be provided and used by the
CONTRACTOR for safe and convenient installation of the type of pipe being
installed.
1. Responsibility for Material: The CONTRACTOR shall be responsible for
all materials intended for the work that are delivered to the construction-site
and accepted by him. Payment shall not be made for materials found to be
defective or damaged in handling after delivery and acceptance. Defective
or damaged materials shall be removed and replaced with acceptable
materials at the CONTRACTOR’s expense.
The CONTRACTOR shall be responsible for the safe and proper storage of
such materials.
2. Handling: Pipe and accessories furnished by the CONTRACTOR shall be
delivered to, unloaded and distributed at the site by the CONTRACTOR.
Pipe and accessories furnished by the Contracting Agency shall be
unloaded and distributed at the site by the CONTRACTOR. Each pipe
shall be unloaded adjacent to or near the intended laying location.
Pipe fittings, specials, valves and appurtenances shall be unloaded and
stored in a manner that precludes shock or damage. Such materials shall
not be dropped.
Pipe shall be handled so as to prevent damage to the pipe ends or to any
coating or lining. Pipe shall not be skidded or rolled against adjacent pipe.
Damaged coatings or lining shall be repaired by the CONTRACTOR, at his
expense in accordance with the recommendations of the manufacturer and
in a manner satisfactory to the ENGINEER. Physical damage to the pipe or
accessory shall be repaired by the CONTRACTOR at his expense, and in a
manner satisfactory to the ENGINEER.
3. Laying Pipe: The pipe and pipe coatings shall be inspected for damage or
defects before being placed in the trench. Damaged or defective pipe shall
not be installed.
Pipe lines shall be laid to the grades and alignment shown on the Drawings
or staked by the ENGINEER. Variation from the prescribed grade and
alignment shall not exceed 0.10 feet, and the rate of departure from, or
return to, the established grade or alignment shall be not more than 1 inch
in 10 feet, unless approved by the ENGINEER. No deviation from grade
shall cause a depression in the sewer invert that could retain fluids or solids.
Pipe fittings shall be laid so as to form a close concentric joint with the
adjoining pipe to avoid sudden off-sets of the flowline. Pipe sections shall
be joined together in accordance with the manufacturer’s recommendations.
Pipe fittings and appurtenances shall be carefully lowered into the trench
with suitable tools or equipment to prevent damage to the pipe and
protective coatings and linings; pipe and accessory materials shall not be
dropped or dumped into the trench.
RRF Outlet Pipe 02610-8 Reinforced Concrete Pipe
Obstructions not shown on the Drawings may be encountered during the
progress of the work. Should such an obstruction require an alteration to
the pipe alignment or grade, the ENGINEER shall have authority to order a
deviation from the Drawings, or the ENGINEER may arrange for the
removal, relocation, or reconstruction of any structures which obstruct the
pipeline.
Precautions shall be taken to prevent foreign material from entering the
pipe before or while it is being placed in the line. During laying operations,
no debris, tools, clothing or other materials shall be placed in the pipe. The
open ends of pipe shall be closed with a watertight plug, or with other
devices approved by the ENGINEER, at times when pipe laying is not in
progress.
Joints of precast concrete boxes and precast concrete pipe shall be grouted
in accordance with the manufacturer’s recommendations.
3.04 BEDDING AND BACKFILLING
A. Select bedding and backfill material may be required and shall be so shown on the
Drawings. Select bedding materials shall conform to the designated gradation
requirements in Section 02320.
Bedding material shall be placed under and around all pipe as shown on the
Drawings. Bedding shall be placed in a manner that will minimize separation or
change in its uniform gradation. Bedding shall be distributed in 6 inch maximum
layers over the full width of the trench and simultaneously on both sides of the pipe.
Special care shall be taken to assure full compaction under the haunches and joints
of the pipe.
Backfill compaction shall not be attained by inundation or jetting unless approved in
writing by the ENGINEER. Backfill material shall be uniformly compacted the full
depth of the trench.
3.05 SURFACE RESTORATION
A. All streets, alleys, driveways, sidewalks, curbs or other surfaces broken, cut or
damaged by the CONTRACTOR shall be replaced in kind or as shown on the
Drawings.
3.06 CONCRETE CUTOFF COLLARS
A. Concrete shall meet the requirements of Section 03310.
3.07 CLEAN UP
A. All rubbish, unused materials and other non-native materials shall be removed
from the job site. All excess excavation shall be disposed of as specified, and the
right-of-way shall be left in a state or order and cleanliness.
END OF SECTION
RRF Outlet Pipe 02610-9 Reinforced Concrete Pipe
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RRF Outlet Pipe 02635-1 Manhole Structures
SECTION 02635
MANHOLE STRUCTURES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Furnish and install precast concrete manhole base, sections, adjusting rings,
steps, and manhole ring and cover, complete.
1.02 RELATED SECTIONS
A. Section 02240 – Water Control and Dewatering
B. Section 02315 – Excavation and Embankment
C. Section 02320 – Trench Excavation and Backfill
1.03 SUBMITTALS
A. The CONTRACTOR shall submit manufacturer's technical descriptions of
manhole sections, steps, rings and covers.
PART 2 PRODUCTS
2.01 MATERIALS
A. Precast Manhole Sections: Precast reinforced concrete manhole sections shall be
produced using Type II Portland cement and be fabricated in accordance with
ASTM C 478.
Flexible plastic sealant, RUB-R-NEK, or equivalent, shall be required for all
horizontal mating surfaces between precast sections.
Manhole sections shall be clearly marked with the information specified for
product marking in ASTM C 478.
B. Manhole Frames and Covers: Manhole frames and covers shall be 400 pound or
greater, 22-inch clear opening, as manufactured by Neenah, Deeter Foundry,
Castings Inc., J Mark Corp, with closed pick hole or approved equal. Manhole
covers shall be labelled for the appropriate utility (e.g. storm, water, sewer,
electric). Covers with more than one lifting hole will not be accepted.
Watertight frames and covers if required shall be NEENAH R-1915/R-1916
series (as applicable) or approved equal.
RRF Outlet Pipe 02635-2 Manhole Structures
C. Manhole Steps: Manhole steps shall be polypropylene. The manhole steps shall
be approximately nine inches wide and 13 inches long and weigh approximately
two pounds. The steps shall located no more than 28 inches from the top of the
finished manhole nor more than 18 inches from the floor and be spaced no
greater than 12 inches apart. The step shall have a skid-resistant surface and be
designed mechanically to prevent sideslip.
D. Joints: All precast concrete joints shall be made with a preformed joint sealer or
grout. All joints that are made with the joint sealer shall also be pointed with
mortar on the inside of the section.
1. Mortar:
Mortar used in jointing precast concrete manhole sections shall be composed
of one part Portland cement and not more than three nor less than two parts
of fine aggregate. Portland cement shall meet the requirements of ASTM C
150, Type II. Hydrated lime or masonry cement shall not be used. Fine
aggregate shall consist of well-graded natural sand having clean, hard,
durable, uncoated grains, free from organic matter, soft or flaky fragments or
other deleterious substances such as calcium chloride. The fine aggregate
shall be thoroughly washed and shall be uniformly graded from coarse to
fine with a minimum of 95% passing the #4 sieve and a maximum of 7%
passing the #100 sieve. All mortar shall be fresh for the work at hand.
Mortar that has begun to set shall not be used.
2. Joint Seals:
Precast concrete manhole section joint seals shall meet the requirements of
Section 07905. If Section 07905 is absent from this specification, joint seal
material shall be “RUB-R-NEK” or approved equal. Apply a manufacture’s
approved primer to manhole joints prior to installation of seals.
PART 3 EXECUTION
3.01 GENERAL
A. The manhole shall be constructed on a properly compacted subgrade and in such
a manner that the center of the manhole coincides with the intersection of the
projected centerlines of the inlet and discharge pipelines. The surface shall be
level to permit proper construction of the riser sections.
Changes in size and grade of channels for gravity pipelines, shall be made
gradually and evenly using concrete made with ASTM C 150, Type II Portland
cement. The invert channels may be formed directly in the concrete manhole
base or may be constructed by laying sewer pipe through the manhole and
cutting out the top half of the pipe after the concrete has cured and reached
design strength.
RRF Outlet Pipe 02635-3 Manhole Structures
The floor of the manhole outside of the channels shall slope upward from the
springline of the pipeline to the wall of the manhole at not less than one inch per
foot nor more than two inches per foot.
3.02 PLACEMENT OF PRECAST CONCRETE BASE AND RISER SECTIONS:
A. Sections: Set the base and each manhole riser section such that the manhole will
be plumb. Use sections of various heights to bring the ring and cover to the
proper grade. The last riser section prior to placement of an eccentric cone or
flat top shall be the shortest available but in no case greater than 24 inches in
height.
B. Joints: Sections shall be clean and dry. Mortar joints shall not be used when
temperature of the air or section will be below 35° F when placing and curing
unless supplemental heat is used to keep the sections warm and mortar from
freezing. In addition, Mortar shall not be used when manhole is within 50’ of
the centerline of the Larimer County Canal No. 2 or the New Mercer Ditch.
1. Using Joint Sealer:
The mating surfaces of the two sections to be joined shall be thoroughly
cleaned. Apply the joint sealer to the seat of the base or riser section that is
already in place. Only one joint is permitted in the sealer. Carefully lower
the second precast concrete section onto the first section so that the joint
sealer compresses forming a uniform seal. Each succeeding precast section
shall be jointed in a similar manner.
2. Using Mortar:
The mating surfaces of the two sections to be joined shall be thoroughly
cleaned. Apply a one-inch minimum bed of freshly mixed mortar to the joint
of the section already in place. The mortar shall be uniform in thickness and
cover the entire perimeter of the section. Carefully lower the second precast
concrete section onto the first section so that the mortar compresses forming
a uniform seal. Tool the mortar for a uniform appearing joint. Each
succeeding precast section shall be jointed in a similar manner.
B. Lifting Holes: Fill all lifting holes with mortar.
3.03 REPAIR OF IMPERFECTIONS IN SECTIONS
A. Imperfections in the precast concrete manhole base or sections shall be reviewed
by the ENGINEER prior to repair. The CONTRACTOR shall submit repair
materials and methods to the Engineering for review and approval.
3.04 ADJUSTING RINGS, RING AND COVER INSTALLATION
RRF Outlet Pipe 02635-4 Manhole Structures
A. Install ring and cover on one or maximum of two precast concrete adjusting
rings. Each adjusting ring shall be a maximum of 8-inches high. Adjusting rings
shall be placed similar to the precast concrete manhole rings, i.e., thoroughly
cleaned and placed with mortar or joint sealer. The total allowable height of
adjusting rings, ring and cover shall be one inch less than the manufacturer’s
shortest precast concrete riser section. Unless otherwise indicated in the
Drawings, set the top of the adjusting rings such that no part of the cast iron ring
and cover will project above a point ¼ inch below the finish surface of
pavement.
3.05 PIPE CONNECTIONS
A. The manhole shall be thoroughly bonded to the barrel of the pipe and all
connections with pipe shall be made without projections or voids. All pipe shall
have a Hamilton Kent (or approved equal) water stop gasket applied around the
pipe. The joint between the PVC pipe and manhole wall shall be sealed with a
non-shrink, non-metallic grout.
3.06 ACCEPTANCE
A. The sewers and manholes shall meet the requirements of the following tests.
The CONTRACTOR shall furnish all equipment, labor and incedentals
necessary and conduct tests in the presence of the ENGINEER.
B. Alignment tests
1. The ENGINEER may lamp each section of sewer between manholes to
determine whether any displacement of the pipe has occurred. The
CONTRACTOR shall provide suitable assistance to perform tests.
2. The CONTRACTOR shall repair poor alignment, displaced pipe or other
defects discovered.
C. Television Inspection
1. Owner may perform television inspection upon Substantial Completion
and prior to Final Inspection and Acceptance.
2. Inform Owner one (1) week prior to requiring his services.
3. Supply Owner with unobstructed access to all manholes.
4. Owner will supply traffic control relevant to this operation.
D. Vacuum Testing
1. Vacuum testing is not required on storm sewer manholes.
E. Manholes and pipe lines shall not have any visible leaks for damp spots.
RRF Outlet Pipe 02635-5 Manhole Structures
F. Repair and retest lines and manholes that fail tests until satisfactory results are
obtained.
G. Cleaning
1. Prior to Substantial Completion remove all accumulated construction
debris, rocks, gravel, sand, silt and other foreign material from the sewer
system. Use mechanical rodding or bucketing equipment as required.
2. Upon final inspection if any foreign material is present in the system,
flush and clean the sections of the line as required.
3.07 ABANDONMENT
A. Manholes to be abandoned in place shall have all pipes entering or exiting the
structure plugged with lean concrete or controlled low strength material backfill
(Flo-Fill). For manholes with existing pipes too large to plug with fill, the
CONTRACTOR shall construct a bulkhead on the inside of the manhole to
prevent the fill from entering the pipes. Material and procedure must be
approved by the ENGINEER.
B. Manhole tops or cone section shall be removed to the top of the full barrel
diameter section or to a point not less than 36 inches below final grade. The
structure shall then be backfilled with lean concrete or Flo-Fill. Surface
restoration shall be completed to match the surrounding areas.
C. Manhole rings and covers, inlet grates and frames, precast flat top or cone
sections, or any other salvageable items shall be salvaged, stored, and delivered
to such location as prescribed by the ENGINEER.
END OF SECTION
RRF Outlet Pipe 02635-6 Manhole Structures
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RRF Outlet Pipe 02920-1 Grasses
SECTION 02920
GRASSES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This section covers soil preparation, fertilizing, mulching, installation of erosion
control fabrics, watering and initial care, final inspection and approval, and the
guarantee period for permanently revegetated areas.
B. This section addresses work within the limits of disturbance as shown on the
Drawings. However, if disturbance does occur outside of this designated area, this
section will also pertain to those areas which have been disturbed.
1.02 SUBMITTALS
A. Submit the seed vendor's guaranteed statements of composition of mixtures, and
percentage of purity, germination and minimum weed content of each species used in
mixtures.
B. Submit the following manufacturer’s certifications to verify that materials meet
specification requirements.
1. Fertilizer analysis
2. Organic mulch tackifier/binder
3. Erosion control and revegetation material
4. Herbicide
1.03 MAINTENANCE AND ACCEPTANCE
A. Initial Inspection:
1. Revegetation: The CONTRACTOR will inspect existing site conditions
and note irregularities affecting work of this section. Verify that grading
operations have been satisfactorily completed and that topsoil of adequate
quantity and quality has been replaced in all disturbed areas as specified.
Verify that the area to be revegetated is protected from concentrated runoff
and sediment from adjacent areas. Note any previous treatments to the area
such as temporary seeding or mulching and discuss how these treatments
will effect permanent revegetation with the ENGINEER. Report all
irregularities affecting work of this section to the ENGINEER before
beginning work. Beginning work of this section implies acceptance of
existing conditions.
RRF Outlet Pipe 02920-2 Grasses
B. Condition Acceptance:
1. Upon completion of the seeding operations, the CONTRACTOR shall notify
the ENGINEER to review the work. If all work is acceptable, the
ENGINEER shall record that date and issue a "Conditional Acceptance"
certificate.
2. Seeded areas shall receive "Final Acceptance" provided all requirements,
including two (2) years maintenance have been complied with and a healthy,
even colored, viable turf is established, free of weeds and undesirable grass
species, disease and insects. Seeded areas shall meet the required coverage
for seed establishment.
C. Seed Establishment Period:
1. Seed establishment period shall begin upon notice of "Conditional
Acceptance" given by the ENGINEER in writing.
2. Areas seeded in the Spring shall be inspected for required coverage the
following Fall not later than October 1st. Required coverage for grass seed
areas shall be ten (10) viable live seedlings of the species specified per
square foot, or 50% foliage cover as measured from 5' directly over head,
with no bare spots larger than one square foot. Determination of required
coverage will be based on a random sampling of the entire project area, and
shall consist of a minimum of five samples, each two square feet in area.
Bare spots are defined as those areas larger than one square foot which do
not meet the required coverage. The following Spring prior to May 15th the
seeded areas shall be reinspected for the required coverage. At this time
75% foliage cover, or fifteen (15) viable live seedlings of the species
specified per square foot, as measured from 5' directly overhead shall be
required. The same random sampling method will be used to determine
coverage.
3. Once the maintenance periods are completed and seed establishment is
accepted, the ENGINEER shall issue a "Final Acceptance of Seeding Work".
D. Maintenance Period:
1. Maintain all seeded areas for two growing seasons from the date of
"Conditional Acceptance". CONTRACTOR shall perform necessary
maintenance to ensure establishment per Section 1.03 C.
E. Maintenance (CONTRACTOR May Choose to Perform the Following):
1. Mowing and Weed Control:
a) Mow seeded areas leaving a five to six inch stubble, three times per
RRF Outlet Pipe 02920-3 Grasses
growing season during the maintenance period.
b) Apply appropriate herbicide(s) in accordance with manufacturers
suggested rate(s) to control weeds. Herbicide application must
comply with all requirements of herbicide/pesticide applicators
license, including suitable warning/signing following application.
2. Disease and Insect Control: Apply fungicides and insecticides as required to
control diseases and insects by a licensed applicator in accordance with state
law requirements.
3. Watering: The CONTRACTOR shall be responsible for watering of seeded
areas if he deems it necessary to insure performance under this Section.
Apply only the amount of water necessary to maintain seeded areas in a
healthy condition until the end of the warranty period. Reduce amount of
water after seed is established. Avoid standing water, surface wash, or
erosion from over-watering.
4. Protection:
a) Provide sufficient barriers and signage notifying the public to keep
off newly seeded areas.
b) Repair: Re-seed areas that have washed out or are eroded.
5. Inspection:
a) The CONTRACTOR shall notify the ENGINEER prior to watering,
mowing, fertilizing, and spraying operations.
b) After the first six months the ENGINEER and the City Forester shall
perform an intermediate inspection of the site with the
CONTRACTOR to determine that maintenance is sufficient to
insure a healthy condition of the seeding work at the end of the two
growing seasons.
1.04 CLEANING
A. Perform cleaning daily during installation of the work, and upon completion the
work. Remove and haul from the site all excess materials, debris, and equipment.
Repair damage resulting from seeding and maintenance operations. Clean mulch
from paved surfaces.
1.05 WARRANTY
A. For a period of two years after the date of "Conditional Acceptance of Seeding
Work", the CONTRACTOR shall maintain and guarantee all seeded areas to be in a
vigorous, healthy growing condition. The CONTRACTOR shall re-seed any areas
RRF Outlet Pipe 02920-4 Grasses
that are dead, diseased, or in the opinion of the ENGINEER in an unhealthy
condition at no additional cost to the OWNER. Reseeding operations shall be
performed by the CONTRACTOR within ten days of notification from the
ENGINEER.
PART 2 PRODUCTS
2.01 QUALITY
A. All materials used for revegetation shall be new and without flaws or defects of any
type, and shall be the best of their class and kind.
2.02 DELIVERY, STORAGE, AND HANDLING
A. Seed:
1. All seed shall be furnished in bags or containers clearly labeled to show the
name and address of the supplier, the seed name, the lot number, net weight,
the percent of weed seed content, and the guaranteed percentage of purity
and germination. All brands furnished shall be free from noxious seeds.
The CONTRACTOR shall furnish to the ENGINEER a signed statement
certifying that the seed furnished is from a lot that has been tested by a
recognized laboratory for seed testing within six months prior to the date of
delivery. Seed which has become wet, moldy, or otherwise damaged in
transit or in storage will not be accepted.
B. Seed shall conform to all current State and Federal regulations and will be subject to
the testing provisions of the Association of Official Seed Analysis.
C. The seed shall have a minimum germination of 85% and a minimum purity of 90%.
Seed shall not exceed 1% weed content by weight. If seed available on the market
does not meet the minimum purity and germination percentages specified, the
CONTRACTOR must compensate for a lesser percentage of purity or germination
by furnishing sufficient additional seed to equal the specified product. Product
comparison shall be made on the basis of pure live seed in pounds. This formula
used for determining the quantity of pure live seed (PLS) shall be: Pounds of Seed x
(Purity x Germination) = Pounds of Pure Live Seed (PLS).
2.03 FERTILIZER
A. Commercial product of uniform composition, free flowing and conforming to
applicable State and Federal laws. Deliver in original, unopened containers. Submit
manufacturer's guaranteed analysis. No Cyanamid compounds will be permitted in
mixed fertilizers.
2.04 SEED
RRF Outlet Pipe 02920-5 Grasses
A. Furnish in bags or containers clearly labeled to show that name and address of the
supplier, the seed name, the lot number, net weight, percent of weed seed content
and the guaranteed percent of purity and germination. All seed shall be free from
noxious weed as defined by the OWNER. Do not use seed which has become wet,
moldy or otherwise damaged in transit or storage. All seed shall be mixed by the
wholesale dealer. The seed shall be mixed in proportions necessary to obtain the
application rate specified.
1. Dryland Seed PLS Seeding Rate
(#/acre drilled)
Western wheatgrass, Barton 5.50
Bluebunch wheatgrass, Secar 2.50
Slender Wheat, Primar (Revenue) 2.00
Blue Grama, Lovington 2.00
Sheep Fescue, Covar (Bighorn) 2.00
Switchgrass, Blackwell 1.50
2. Wetland Seed PLS Seeding Rate
(#/acre drilled)
Nebraska Sedle (Carex nebraskensis) 1.00
Least Spikerush (Eleocharis asicularis) 1.00
Torrey Rush (Juncus torreyi) 1.00
Three Square (Scirpus americanus) 1.00
Blue Vervain (Verbena Hastata) 1.00
2.05 MULCH
A. Mulch will not be required in the seeded areas that have received temporary mulch
or temporary vegetation prior to November 1st.
B. Seeded Areas:
1. Hydraulic Mulch:
a) Hydraulic mulch material shall consist of at least ninety (90%)
percent virgin wood cellulose fiber and be free of any substance or
factor which might inhibit germination or growth of grass seed. The
wood cellulose fibers shall have the property of becoming evenly
dispersed and suspended when agitated in water.
b) Hydraulic mulch shall be clean and shall not contain the seeds of
noxious weeds or unspecified grasses. It shall be dyed a color to
allow visual metering of its application. When sprayed uniformly
on the surface of the soil, the fibers shall form a blotter-like ground
cover which readily absorbs water, and allows infiltration to the
underlying soil.
RRF Outlet Pipe 02920-6 Grasses
c) Weight specifications for hydraulic mulch from suppliers and for all
applications shall refer only to air dry weight of the fiber, a standard
equivalent to ten (10%) percent moisture. The hydraulic mulch
material shall be supplied in packages having a gross weight not in
excess of one hundred (100 lbs.) pounds, and shall be marked by the
manufacturer to show the air dry weight content.
d) The CONTRACTOR shall obtain and submit to the ENGINEER
certifications from suppliers of hydraulic mulch that laboratory and
field testing of their product has been accomplished, and that it
meets all of the foregoing requirements pertaining to wood cellulose
fiber mulch.
2.06 WATER
A. The CONTRACTOR will be required to provide all water necessary for planting and
establishment of vegetation.
All water used on projects under this Contract shall be free of any substances
harmful to plant germination and growth, and of the environment in general. The
CONTRACTOR shall be responsible for furnishing and applying water which meets
these requirements.
2.07 CARE OF DELIVERED MATERIALS
A. Commercially purchased wetland plants will be delivered to the construction site as
close to the time of planting as possible. Upon receipt of the shipment, plants will be
inspected for moisture status and condition. All plants will be watered upon arrival.
Watering should be repeated every four days as needed following this date until
planting. No fertilizer materials will be applied to stored plants. Plants will be
stored in such a manner as to:
1. Avoid or reduce moisture stress.
2. Avoid excessive heat or cold.
3. Protect plants from wind and mechanical damage.
4. Provide a staging area for subsequent planting activities.
B. All fertilizer, seed, and mulch materials will be retained in shipping bags until they
are to be used. These materials will be stored in a manner to prevent them from
coming in contact with precipitation of surface water.
PART 3 EXECUTION
RRF Outlet Pipe 02920-7 Grasses
3.01 SOIL PREPARATION
A. Apply a minimum of 6 inches of topsoil to all areas to be seeded. Thoroughly till all
areas which are to be seeded that previously supported vehicular traffic to a depth of
12". Till all remaining areas to a depth of 6". Channel bottom areas are to be ripped
to a depth of at least 2 feet on approximately 2- to 4-foot centers. Work the soil only
when moisture conditions are suitable. Remove rocks and other objects 3" or greater
in any dimension.
B. Correct irregularities in the ground surface resulting from soil preparation operations
and slope to drain.
3.02 SEEDING
A. Seed all areas that have been disturbed as a result of construction operations after
ENGINEER has inspected and approved the seedbed. All areas disturbed by the
CONTRACTOR (i.e. staging areas, etc.) shall be seeded by the CONTRACTOR at
no cost to the OWNER.
B. Seeding shall occur immediately after soil preparation has been approved by
ENGINEER.
C. Do not seed during windy weather or when the ground is frozen, muddy, or
untillable.
D. Seed at the rates specified in "PART 2 - MATERIALS".
E. Seeded Areas: Seed all areas with a mechanical power-drawn drill when possible.
When access is not possible, broadcast seeding may be allowable, if approved by the
ENGINEER.
1. Drill Seeding: All seed is to be drilled 0.25 inch to 0.50 inch into the soil at
the specified PLS/acre rate with a mechanical, power-drawn drill or Brillion
seeder. Rows shall be spaced not more than 7 inches apart. If using a range
drill, the CONTRACTOR shall drill one-half of the required PLS/acre in one
compass direction, and then drill the remaining half of the required PLS/acre
in a direction 90 degrees to the first half.
2. Broadcast seeding will be accomplished using hand-operated "cyclone-type"
seeders or rotary broadcast equipment attached to construction or
revegetation machinery. All machinery will be equipped with metering
devices. Broadcasting by hand will be acceptable on small, isolated sites.
When broadcast seeding, passes will be made over each site to be seeded in a
manner to ensure an even distribution of seed. When using hopper type
equipment, seed shall be frequently mixed within the hopper to discourage
seed settling and uneven planting distribution of species.
RRF Outlet Pipe 02920-8 Grasses
Broadcast seeding will take place immediately following the completion of
final seedbed preparation techniques and upon inspection and approval of
the ENGINEER. Broadcast seeding should not be conducted when wind
velocities would prohibit even seed distribution. The broadcast seeding rate
for herbaceous species will be twice the rate of drill seeding. Woody species
will be established by broadcast seeding methods only.
F. Revegetation shall occur based on the following tables:
PREFERRED (FALL) REVEGETATION SCHEDULE
Reclamation Technique Month
Grading/Ripping Any month
Resoiling Sept., Oct., Nov.
Seedbed Material Sampling Sept., Oct., Nov.
Fertilization Sept., Oct., Nov.
Seedbed Preparation Sept., Oct., Nov.
Seeding Apr., May, Oct., Nov., Dec.
Wetland Pod planting Apr., May, Oct., Nov., Dec.
Mulching (if Specified) Sept., Oct., Nov., Dec.
ALTERNATE (SPRING) REVEGETATION SCHEDULE
Reclamation Technique Month
Grading/Ripping Any month
Resoiling Feb., Mar., Apr., May
Seedbed Material Sampling Mar., Apr., May
Fertilization Mar., Apr., May
Seedbed Preparation Mar., Apr., May
Seeding Mar., Apr., May
Wetland Pod planting Apr., May
Mulching (if Specified) Feb., Mar., Apr., May
3.03 MULCH APPLICATION
A. Mulch will not be required in the seeded areas that have received temporary mulch
or temporary vegetation prior to November 1st. Mulch shall be applied immediately
following seeding operations.
B. Seeded areas: Hydraulic Mulch - Immediately after seeding has been completed,
hydraulic mulch, if required, shall be applied as a homogeneous slurry of water,
cellulose fiber mulch, and tackifier at the rate of two thousand (2,000) pounds per
acre. Mulch mixture shall be applied uniformly over all seeded areas with
equipment capable of operating at one hundred (100) gallons per minute at one
hundred (100) pounds per square inch.
RRF Outlet Pipe 02920-9 Grasses
3.04 PROTECTION OF SEEDED AREAS
A. Protect seeded areas from unnecessary pedestrian or vehicular traffic until well
established through the use of fences, barricade and signage. Provide any additional
erosion control measures which are necessary for the successful establishment of
vegetation.
3.05 RESEEDING AND REPAIR
A. The CONTRACTOR shall be responsible for reseeding and mulching areas which do
not meet the acceptance criteria set forth in paragraph 1.03 of this Section.
3.06 MAINTENANCE
A. The CONTRACTOR shall ensure successful seed growth per Section 1.03 C.
CONTRACTOR may choose the following methods to achieve successful seed
growth.
1. Periodic Inspections
2. Weed Control
3. Disease and Insect Control
4. Watering:
a) Seeded areas may be watered if deemed necessary by the
CONTRACTOR to ensure performance under his Section.
5. Protection
B. Refer to maintenance requirements in Paragraph 1.03, E.
END OF SECTION
RRF Outlet Pipe 02920-10
Grasses
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 02921-1 Ground Preparation
for Seeding
SECTION 02921
GROUND PREPARATION FOR SEEDING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. This section covers soil preparation for areas to be reseeded.
B. This section addresses work within the limits of disturbance as shown on the
Drawings. However, if disturbance does occur outside of this designated area, this
section will also pertain to those areas, which have been disturbed.
1.02 INITIAL INSPECTION
The CONTRACTOR will inspect existing site conditions and note irregularities affecting
work of this section. Verify that grading operations have been satisfactorily completed and
that topsoil of adequate quantity and quality has been replaced in all areas as specified.
Verify that the area to be revegetated is protected from concentrated runoff and sediment
from adjacent areas. Note any previous treatments to the area such as temporary seeding or
mulching and discuss how these treatments will effect permanent revegetation with the
ENGINEER. Report all irregularities affecting work of this section to the ENGINEER
before beginning work. Beginning work of this section implies acceptance of existing
conditions.
1.03 CLEANING
Perform cleaning daily during installation of the work, and upon completion the work.
Remove and haul from the site all excess materials, debris, and equipment. Repair damage
resulting from ground preparation operations.
PART 2 EXECUTION
2.01 GENERAL SOIL PREPARATION
A. Inspection: Examine the substrate in which the work is to be performed. Do not
proceed until unsatisfactory conditions have been corrected.
B. Grades: Grades have been established under work of another Section to within 1
inch, plus or minus, of required finished grades. Verify that grades are within 1 inch,
plus or minus, of required finished grades. Notify the ENGINEER prior to
commencing soil preparation work if existing grades are not satisfactory, or assume
responsibility for conditions as they exist.
C. Weed and Debris Removal: All ground areas to be planted shall be cleaned of all
weeds and debris prior to any soil preparation or grading work. Weeds and debris
shall be disposed of off the site.
RRF Outlet Pipe 02921-2 Ground Preparation
for Seeding
D. Contaminated Soil: Do not perform any soil preparation work in areas where soil is
contaminated with cement, plaster, paint or other construction debris. Bring such
areas to the attention of the ENGINEER and do not proceed until the contaminated
soil is removed and replaced.
E. Moisture Content: Soil shall not be worked when moisture content is so great that
excessive compaction will occur, nor when it is so dry that dust will form in the air
or that clods will not break readily. Water shall be applied, if necessary, to bring soil
to an optimum moisture content for tilling and planting.
F. Ripping & Scarification: Rip, scarify, or otherwise loosen all areas to a depth of 6
inches, removing all obstructions encountered in excavating, such as loose rock, con-
struction debris, etc. Thoroughly till all areas which are to be seeded that previously
supported vehicular traffic to a depth of 12". Till all remaining areas to a depth of
6". Channel bottom areas are to be ripped to a depth of at least 2 feet on
approximately 2- to 4-foot centers. Work the soil only when moisture conditions are
suitable. Remove rocks and other objects 3" or greater in any dimension.
END OF SECTION
RRF Outlet Pipe
DIVISION 3 - CONCRETE
SECTION 03110 STRUCTURAL CAST-IN-PLACE CONCRETE
FORMS
SECTION 03210 REINFORCING STEEL
SECTION 03310 STRUCTURAL CONCRETE
SECTION 03320 CONSTRUCTION JOINTS
SECTION 03350 CONCRETE FINISHING
SECTION 03390 CONCRETE CURING
SECTION 03615 GROUT
RRF Outlet Pipe 03110-1 Structural Cast-In-Place
Concrete Forms
SECTION 03110
STRUCTURAL CAST-IN-PLACE CONCRETE FORMS
PART 1 GENERAL
1.01 SECTION INCLUDES
The CONTRACTOR shall supply all labor, tools, equipment and materials to set forms for
the proper placement of concrete for structures. It is the CONTRACTOR’s responsibility to
design and build adequate forms and to leave them in-place until the forms can be safely re-
moved. The CONTRACTOR is responsible for damage and injury caused by removing
forms carelessly or before the concrete has gained sufficient strength. Means and methods of
repair shall be reviewed by the ENGINEER prior to performing the work.
1.02 RELATED SECTIONS
A. Section 03310 – Structural Concrete
B. Section 03320 – Construction Joints
C. Section 03350 - Concrete Finishing
D. Section 03615 - Grout
1.03 QUALITY STANDARDS
A. American Concrete Institute
1. ACI 318 - Building Code Requirements for Structural Concrete
2. ACI SP-4 - Formwork for Concrete
B. American Plywood Association
1. PS 1 - US Product Standard for Construction and Industrial Plywood
2. J20 - Grades and Specifications
3. V345 - Concrete Forming
1.04 SUBMITTALS
A. General
Design, placement and maintenance of formwork and form systems is the responsi-
bility of the CONTRACTOR. Submittals other than listed herein are not required
nor will they be reviewed.
B. Product Technical Data
1. Manufacturer and type of form materials
RRF Outlet Pipe 03110-2 Structural Cast-In-Place
Concrete Forms
2. Manufacturer and type of form ties
3. Manufacturer and type of void form including compressive strength
4. Manufacturer of form release agent
C. Formwork Design
A copy of a transmittal letter from the designing engineer to the CONTRACTOR in-
dicating that the design of the formwork for the project was prepared by or under his
supervision. The letter shall be stamped with the seal of the designing engineer and
signed in accordance with the professional engineering registration laws where the
project is located. The designing engineer’s qualifications shall be attached to the
transmittal letter.
1.05 QUALITY ASSURANCE
Formwork, and if required shoring and reshoring, shall be designed by a Professional Engi-
neer licensed to practice in the state where the project is located and having a minimum of
five years’ experience in the design of concrete formwork or form systems.
PART 2 PRODUCTS
2.01 GENERAL
For the purposes of this specification exposure shall be defined as a surface, interior or exte-
rior, of a structure that will be exposed to view during its use. For example, the interior wall
of a buried water retaining structure is a surface exposed to view.
2.02 FORMS FOR SURFACES EXPOSED TO VIEW
A. Walls
1. APA B-B Plyform Class I, Exterior, PS-1-83. The plywood shall be mill
oiled and edge sealed.
2. Symons hand set steel-ply forms, or equal.
B. Beams
1. APA B-B Plyform Class I, Exterior, PS-1-83. The plywood shall be mill
oiled and edge sealed.
2. Symons hand set steel-ply forms, or equal.
C. Sides of Column Footings
1. APA B-B Plyform Class I, Exterior, PS-1-83. The plywood shall be mill
oiled and edge sealed.
2. Symons hand set steel-ply forms, or equal.
RRF Outlet Pipe 03110-3 Structural Cast-In-Place
Concrete Forms
3. Steel of sufficient thickness that the form will remain true to shape after nu-
merous repetitive uses.
D. Sides of Curved or Straight Continuous Wall Footings
1. APA High Density Overlay Plyform Class I Exterior.
2. APA B-B Plyform Class I, Exterior, PS-1-83.
For curved surfaces, plywood of sufficient thickness, free from knots and other im-
perfections, which can be cut and bent and held in place accurately to the required
curvature without splintering or splitting shall be used.
E. Floor and Roof Slabs
1. APA B-B Plyform Class I, Exterior, PS-1-83. The plywood shall be mill
oiled and edge sealed.
F. Columns
Regardless of materials of construction the forms shall be such to permit bracing in
two directions at half-height and full height at a minimum. Two braces at 90° are re-
quired at half and full height.
1. Steel of sufficient thickness that the form will remain true to shape after nu-
merous repetitive uses.
2. Fiberglass of sufficient thickness that the form will remain true to shape.
G. Column Capitals
1. Steel, 16 gage or thicker, so that the form will remain true to shape after nu-
merous repetitive uses.
2.03 FORMS FOR SURFACES NOT EXPOSED TO VIEW
Wood or steel sufficiently tight to prevent mortar leakage.
2.04 ANCHORAGE IN SLABS FOR BRACES FOR WALL AND COLUMN FORMS
Braces shall be anchored to deadmen of sufficient size and weight to maintain the proper
wall/column alignment under all load conditions including wind.
Wedge anchors of any type, inserts or concrete nails are specifically not permitted for an-
chorage of wall or column braces in water retaining structures. Wedge anchors or nails may
be used in other structures when in the opinion of the ENGINEER the resulting concrete fin-
ish patch will be acceptable. The CONTRACTOR shall make a submittal including informa-
tion about the type of wedge anchor or nail and the means of patching the surface for review
and acceptance by the ENGINEER.
RRF Outlet Pipe 03110-4 Structural Cast-In-Place
Concrete Forms
2.05 ANCHORAGE IN SLABS FOR UPTURNED COLUMN FOOTING FORMS
Braces shall be anchored to deadmen of sufficient size and weight to maintain the proper
wall/column configuration and diameter. Wedge anchors of any type, inserts or concrete
nails are specifically not permitted for anchorage of column footing forms.
2.06 FORM TIES
A. Water Retaining Structures and Below Grade Structures:
Symons, S-Panel Ties, or equal, with water seal and one-inch break back cones on
both tie ends, shall be used on all wall forms.
B. Other Structures:
Symons, S-Panel Ties, or equal, with one-inch break back cones on both tie ends
unless otherwise called out or shown in the Drawings or approved by the ENGI-
NEER, shall be used on all wall forms.
C. Twisted Wire Ties:
Twisted wire ties with loops to hold forms in position are not permitted.
2.07 CHAMFER STRIP
Chamfer strips (3/4 inch) shall be placed in the corners of forms and at the tops of walls or
up-turned footings, to produce beveled edges on permanently exposed concrete surfaces. In-
terior angles of intersecting concrete surfaces and edges of construction joints shall not be
beveled unless otherwise indicated in the Drawings. The chamfer strip may be made of
wood or polyvinyl chloride (PVC).
2.08 STIFFBACKS
Stiffbacks for wall forms shall be constructed of lumber or Glulams, uniform in width and
thickness, free from knots and other surface defects. Only one joint is permitted in the board
of a stiffback and joints shall be offset so as to not occur at the same point. Stiffbacks shall
extend to a point not less than six inches above the top of forms.
2.09 GANG WHALER PLATES FOR THE TOP OF CURVED WALLS
Gang whaler plates shall be constructed of plywood as described below cut to the radius of
the wall curve. The gang whaler plate shall be of sufficient depth to permit notching for
stiffbacks.
A. APA High Density Overlay Plyform Class I Exterior.
B. APA B-B Plyform Class I, Exterior, PS-1-83.
2.10 WEDGE INSERTS
When permitted by the ENGINEER at the tops of walls or columns, wedge inserts may be
RRF Outlet Pipe 03110-5 Structural Cast-In-Place
Concrete Forms
used to support future formwork or catwalks. The inserts shall be Richmond Screw Anchor,
or equal.
2.11 FORM RELEASE AGENT
Magic Kote by Symons Corp. or equal.
PART 3 EXECUTION
3.01 GENERAL
Forms shall be used, wherever necessary, to confine the concrete and shape it to the specified
lines and grades as shown on the Drawings. The CONTRACTOR shall set and maintain
concrete forms so as to ensure completed work is within all applicable tolerance limits. If a
type of form does not, in the opinion of the ENGINEER, consistently perform in an accept-
able manner, the type of form shall be changed and the method of erection shall be modified
by the CONTRACTOR, subject to the review of the ENGINEER.
Forms shall have sufficient strength to withstand the pressure resulting from placement and
vibration of concrete, and shall be maintained rigidly in position. The design of formwork
and placing rate of concrete with medium and high-range water reducing agents shall be ad-
justed to compensate for the greater hydraulic pressures exerted on the forms by concrete of
high fluidity.
Forms shall be clean and free from mortar and other foreign material from previous use prior
to being placed.
The CONTRACTOR shall demonstrate that forms are vertical, proper alignment, grade or
radius when requested by the ENGINEER.
3.02 FORM SURFACE TREATMENT
A. General
Prior to placing reinforcing steel coat the forms with a non-staining release agent that
will effectively prevent the absorption of moisture and prevent bond of the concrete
to the form. Contact with hardened concrete against which fresh concrete is to be
placed is prohibited. All bond breaking materials or processes shall be used only af-
ter acceptance by the ENGINEER. Care shall be taken in applying form oil to avoid
contact with reinforcement steel. Embedded material which becomes coated with
form oil shall be thoroughly cleaned or replaced at the expense of the CONTRAC-
TOR.
B. For Potable Water Facilities
Form release agents for potable water facilities, such as treated water storage reser-
voirs or water treatment plants, shall be non-toxic 30 days after application.
3.03 TOLERANCES
Tolerances are defined as allowable variations from specified alignments, grades and dimen
RRF Outlet Pipe 03110-6 Structural Cast-In-Place
Concrete Forms
sions. Allowable variations from specified alignments, grades and dimensions are prescribed
in the following sub-section. Descriptions of these criteria can be found in Part 2 of the ACI
Manual of Concrete Practice 1995, Commentary of Standard Specifications for Tolerances
for Concrete Construction and Materials (ACI 117-90).
A. Footings and Foundations
1. Drilled Piers
Vertical alignment ≤ 2 % of the shaft length
Lateral alignment ≤ 1/24 of shaft diameter, 3 inch maximum
Level alignment to cut-off elevation: +1 inch, -3 inch
2. Continuous Wall Footings (Circular and Non-circular)
Lateral alignment: ≤ 2% of the footing width, 2 inches maximum
Relative alignment: Variation ≤ 1 inch in 10 feet (variation between speci-
fied plane and as built surface)
Cross-sectional dimension:
Horizontal dimension: Variation +2 inch, -1/2 inch
Vertical dimension (thickness): Variation ± 1/2 inch
Circular Wall Footing Only
Variation in Radius in any 20 feet of wall length: ≤ 1/2 inch
Variation in Radius in entire wall length: ≤ 1 inch
3. Column footings
Lateral alignment: Variation ≤ 2 inch
Level alignment: Variation from specified elevation +1/2 inch, - 2 inch
Relative alignment: Variation ≤ 1 inch in 10 feet (variation between speci-
fied plane and as built surface)
Cross-sectional dimension:
Horizontal dimension: Variation +2 inch, -1/2 inch
Vertical dimension (thickness): Variation ± 1/2 inch
B. Cast-in-Place Concrete for Buildings and other Structures
RRF Outlet Pipe 03110-7 Structural Cast-In-Place
Concrete Forms
1. Member (such as a beam, column, wall, slab, or pier)
Vertical alignment:
Variation from specified plumb ≤ 3/8 inch (full height)
1/4 inch (one form sec-
tion)
Lateral alignment:
Maximum in any bay: Variation ≤ 1/2 inch
Maximum in any 20 feet of length: Variation ≤ 1/2 inch
Maximum for entire wall length: Variation ≤ 1 inch
Floor and wall opening locations: Variation ≤ 1/2 inch
Sawcuts and joints: Variation ≤ 3/4 inch
Level alignment:
Top elevation of slabs: Variation ≤ 3/4 inch
Lintels, other lines exposed to view: Variation ≤ 3/4 inch
Cross sectional dimensions:
Walls and slabs (thickness): Variation ±1/4 inch
Columns and Beams: Variation +1/2 inch, -1/4 inch
Size of wall and floor openings: Variation ± 1/4 inch
Relative alignment:
Offset between adjacent formwork: Variation ±1/4 inch
Variation in Specified Grade:
For any distance less than 10 feet: Variation ≤ 1/4 inch
For entire structure: Variation ± 1/2 inch
For manholes and outlet structures: Variation ≤ 1 inch
2. Stairways
Relative alignment:
RRF Outlet Pipe 03110-8 Structural Cast-In-Place
Concrete Forms
Difference in height between adjacent risers: 1/8 inch
Difference in width between adjacent treads: 1/4 inch
3.04 PLUMB AND STRING LINES
Plumb and string lines shall be installed on wall and column forms before, and maintained,
during concrete placement. There shall be sufficient number of plumb or string lines in walls,
for example at every other stiffback, properly installed to permit continuous monitoring. Dur-
ing concrete placement, the CONTRACTOR shall continually monitor plumb and string line
positions and immediately correct deficiencies. The plumb and string lines shall extend to a
point at least six inches above the top of wall or column.
3.05 FORMWORK CAMBER
In order to maintain specified tolerances of joists, beams or slabs subject to dead load deflec-
tion, the CONTRACTOR shall camber formwork to compensate for dead load deflection
prior to hardening of the concrete.
3.06 GANG WHALER PLATES FOR CIRCULAR WALLS
The CONTRACTOR shall place a gang whaler plate cut to the curvature of the wall, such as
a circular reservoir wall, at the top of the wall forms. The gang whaler plate shall be at-
tached to the forms with a gang whaler rod at appropriately designed intervals. The gang
whaler plate may be notched to permit the stiffback to extend above the top of the wall
forms. The gang whaler plate shall be sufficiently stiff to maintain the required curvature.
3.07 HAND SET MODULAR FORMS
Hand set modular forms, such as Symons hand set steel-ply forms, shall be placed with no
more than two intersecting joints occur at one level in the formwork above the bottom modu-
lar form level. The following figure illustrates the required form pattern.
Figure 1
RRF Outlet Pipe 03110-9 Structural Cast-In-Place
Concrete Forms
The above form configuration is one way recommended by Simons Corp. to eliminate verti-
cal, in plane, bending of the forming system. The CONTRACTOR may develop alternate
means of maintaining vertical alignment. Alternate form system configurations require
preparation by a licensed Professional Engineer in Colorado and submittal to the ENGI-
NEER for review and approval.
3.08 FORMWORK CLOSURE
Forms which will prohibit visual review of items such as reinforcing steel, waterstops and
bearing pads by the ENGINEER, shall not be placed until the ENGINEER has performed a
final review of the reinforcing steel.
The CONTRACTOR shall use compressed air from an air-compressor to blow-out construc-
tion debris and dirt at the bottom of sections or members to be placed such as walls, slabs,
beams and columns, prior to placing forms or concrete. The CONTRACTOR shall demon-
strate to the ENGINEER that all debris, such as loose concrete particles, saw dust, loose tie
wire, bar tags, tape, trash and dirt, have been thoroughly removed.
3.09 HOT OR COLD WEATHER PLACEMENT AND STEEL FORMS
Prior to placing concrete when steel forms are used, the forms shall be heated when the sur-
face temperature of the form is below 40° F or cooled when the surface temperature of the
form is above 90° F. If water is used to cool forms where ponding of water may occur, i.e.,
at the bottom of a column, the water shall be permitted to drain prior to placing concrete.
3.10 REMOVAL OF FORMS
The forms for any portion of a structure shall not be removed until the concrete has reach
sufficient strength with a factor of safety of 2.0, to withstand applied loads such as self
weight and wind loads or withstand damage when the forms are removed.
For post-tensioned concrete slabs and beams, formwork shall not be removed until the entire
slab or member has been stressed and stressing records accepted.
3.11 RESHORES
When a reshore plan is to be performed, it shall comply with Section 1.04 of this Specifica-
tion.
END OF SECTION
RRF Outlet Pipe 03110-10 Structural Cast-In-Place
Concrete Forms
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 03210-1 Reinforcing Steel
SECTION 03210
REINFORCING STEEL
PART 1 GENERAL
1.01 SECTION INCLUDES
This work shall consist of furnishing and placing reinforcing steel in accordance with these
Specifications and in conformity with the Drawings.
1.02 RELATED SECTIONS
A. Section 03310 – Structural Concrete
1.03 QUALITY STANDARDS
A. American Concrete Institute
1. ACI 318 - Building Code Requirements for Reinforced Concrete
2. ACI Detailing Manual - (SP-66)
3. ACI 117 - Standard Tolerance for Concrete Construction and Materials
B. American Society for Testing and Materials
1. ASTM A 615, A 616 including supplementary requirement S1, A 617, A 706
2. ASTM A 767, Zinc-coated (galvanized) reinforcing bars
3. ASTM A 775 Epoxy-coated reinforcing bars
C. Concrete Reinforcing Steel Institute (CRSI)
1. Manual of Standard Practice
2. Placing Reinforcing Bars
D. American Welding Society (AWS)
1. AWS D1.4 - Structural Welding Code - Reinforcing Steel
PART 2 PRODUCTS
2.01 REINFORCING STEEL
A. Deformed Bars:
All bar steel reinforcement shall be of the deformed type, ASTM A 615, (AASHTO
M31) and grade (40 or 60) as specified in the Drawings.
RRF Outlet Pipe 03210-2 Reinforcing Steel
B. Spirals:
Spirals, hot-rolled plain or deformed bars per ASTM A 615, Grade 60 or cold drawn
wire per ASTM A 82 as specified in the Drawings.
Spirals for columns shall have two “spacers” with a section modulus > 0.008in3 in
order to maintain the proper pitch and spacing.
C. Epoxy-Coated Reinforcing Bars:
Epoxy-coated reinforcing bars shall conform to ASTM A 775. When required, dam-
aged epoxy coating shall be repaired with patching material conforming to ASTM A
775 in accordance with the material manufacturer's recommendations.
D. Zinc-coated (Galvanized Reinforcing Bars):
Zinc-coated reinforcing bars shall conform to ASTM A 767. When required, dam-
aged zinc coating shall be repaired with a zinc-rich formulation conforming to
ASTM A 767.
2.02 TIE WIRE
16 gauge wire ties, manufactured by American Wire Tie, Inc., or equal. When epoxy coated
reinforcing steel is shown in the Drawings, PVC coated wire ties shall be used. The mini-
mum PVC coating is 0.7 mils.
2.03 IDENTIFICATION
Bundles of reinforcing bars and wire spirals shall be tagged, with a metal tag, showing speci-
fication, grade, size, quantity and suitable identification to permit checking, sorting and plac-
ing. When bar marks are used to identify reinforcing bars in the Drawings, the bar mark
shall be shown on the tag. Tags shall be removed prior to concrete placement.
Bundles of flat sheets and rolls of welded wire fabric shall be tagged similar to reinforcing
bars.
2.04 STORAGE AND PROTECTION
Reinforcing steel shall be stored off of the ground and protected from oil or other materials
detrimental to the steel or bonding capability of the reinforcing bar. Epoxy-coated reinforc-
ing bars shall be stored on protective cribbing.
Rust, seams, surface irregularities, or mill scale, shall not be cause for rejection provided that
the weight and height of deformations of a hand-wire-brushed test specimen are not less than
the applicable ASTM Specification.
When placed in the work, the reinforcing bars shall be free from dirt, loose mill scale, paint,
oil, loose rust or other foreign substance.
RRF Outlet Pipe 03210-3 Reinforcing Steel
2.05 BAR SUPPORTS
A. General:
Bar supports and spacing shall be in accordance with the CRSI Manual of Standard
Practice, Chapter 3, a maximum of four feet or as required by the Drawings.
B. Floor Slabs:
Uncoated steel or non-metallic composite chairs shall be used unless otherwise
shown in the Drawings. If required by the ENGINEER, the chair shall be stapled on
a bearing pad to prevent chair displacement. The bearing pad shall be made of exte-
rior grade plywood and be approximately five inches square.
C. Soffits:
Steel wire bar supports in concrete areas where soffits are exposed to view or are
painted shall be Class 1 or Class 2, Types A or B: Class 3 is acceptable in other ar-
eas.
D. Water and Wastewater Vaults, Tank and Basin Walls, and Roof Slabs:
Only plastic clip, non-metallic composite or 100% epoxy coated steel chair bar and
bolster supports are acceptable for use in walls and roof slabs. Supports shall be se-
curely stapled to formwork.
E. Columns:
Plastic "space wheels" manufactured by Aztec (Model DO 12/40), or equal, are re-
quired.
F. Epoxy-Coated and Zinc-Coated Bar Supports:
Epoxy-coated reinforcing bars supported from formwork shall rest on coated wire
bar supports made of dielectric or other acceptable materials. Wire supports shall be
fully coated with dielectric material, compatible with concrete. Reinforcing bars
used as support bars shall be epoxy-coated. In walls reinforced with epoxy-coated
bars, spreader bars shall be epoxy coated. Proprietary combination bar clips and
spreaders used in walls with epoxy-coated reinforcing shall be made of corrosion-
resistant material or coated with dielectric material.
PART 3 EXECUTION
3.01 BAR LIST
Eight copies of a list of all reinforcing steel and bending diagrams shall be furnished to the
ENGINEER at the site of the work at least two weeks before the placing of reinforcing steel
is begun. The CONTRACTOR shall be responsible for the accuracy of the lists and for fur-
nishing and placing all reinforcing steel in accordance with the details shown on the Draw-
ings.
RRF Outlet Pipe 03210-4 Reinforcing Steel
Bar lists and bending diagrams for structures, which are included in the Drawings, do not
have to be furnished by the CONTRACTOR. When bar lists and bending diagrams are in-
cluded in the Drawings, they are intended for estimating approximate quantities. The
CONTRACTOR shall verify the quantity, size and shape of the bar reinforcement against
those shown on the Drawings and make any necessary corrections before ordering.
3.02 FABRICATION
Fabrication tolerances for straight and bent bars shall be in accordance with the requirements
of Subsection 4.3, Tolerance, of the American Concrete Institute Standard 315 and the CRSI
Manual of Standard Practice.
3.03 BENDING
All reinforcing bars shall be bent cold. Bars partially embedded in concrete shall not be field
bent except as shown on the Drawings or as permitted by the ENGINEER. Bars shall not be
bent or straightened in a manner that will injure the material.
3.04 SPIRALS
One and one-half finishing bends are required at the top and bottom of the spiral. Spacers
shall be provided in accordance with Chapter 5, Section 9 of the CRSI Manual of Standard
Practice. Welding as an aid to fabrication and/or installation is not permitted.
3.05 PLACING AND FASTENING
The placing, fastening, splicing and supporting of reinforcing steel and wire mesh or bar mat
reinforcement shall be in accordance with the Drawings and the latest edition of "CRSI Rec-
ommended Practice for Placing Reinforcing Bars". In case of discrepancy between the
Drawings and the CRSI publication stated above, the Drawings shall govern. Reinforcement
shall be placed within the tolerances provided in ACI 117.
Steel reinforcement shall be accurately placed in the positions shown on the Drawings and
firmly held during the placing and setting of concrete by means of spacer strips, stays, metal
chairs or other approved devices or supports. Chair and bolster supports for slabs and walls
shall be spaced at a maximum of four foot centers unless otherwise shown in the Drawings.
Staples used to attach bar supports to wall and roof forms shall have the staple "tails" clipped
after form removal. For Columns, three wheels, spaced 120 degree apart, shall be placed
every four feet of column height. The CONTRACTOR may increase the column spiral pitch
if a conflict occurs with the wheel. Pre-tied column reinforcing steel lowered into column
forms shall be lowered vertically to prevent damage to the space wheels.
Bars shall be securely tied at 50% of all intersections except where spacing is less than one
foot in each direction, when alternate intersections shall be tied unless otherwise called out
in the Drawings or in applicable specifications. Tying of steel by spot welding will not be
permitted unless specifically authorized by the ENGINEER. The placing and securing of the
reinforcement in any unit or section shall be accepted by the ENGINEER before any con-
crete is placed in any such unit or section.
Bundle bars shall be tied together at not more than 6-foot centers.
RRF Outlet Pipe 03210-5 Reinforcing Steel
3.06 SPLICING
Bar steel reinforcement shall be furnished in the full lengths indicated on the Drawings.
Splicing of bars, except where shown on the Drawings, will not be permitted without the
written acceptance of the ENGINEER. Splices shall be staggered. In cases where permis-
sion is granted to splice bars, other than those shown on the Drawings, the additional mate-
rial required for the lap shall be furnished by the CONTRACTOR at his own expense. The
minimum distance between staggered splices for reinforcing bars shall be the length required
for a lapped splice in the bar. All splices shall be full contact splices.
Splices will not be permitted at points where the section is not sufficient to provide a mini-
mum distance of two inches between the splice and the nearest adjacent bar or the surface of
the concrete.
Welding of reinforcement shall be done only if detailed on the Drawings or if authorized by
the ENGINEER in writing. Welding shall be done by a certified welder. The welding shall
conform to AWS D 12.1, Recommended Practices for Welding Reinforcing Steel, Metal In-
serts and Connections in Reinforced Concrete Construction, with the modifications and addi-
tions specified hereinafter. Where AWS D 2.0 Specifications for Welded Highway and
Railway Bridges is referenced, the reference shall be construed to be for AWS D 1.1. Where
the term AWS D1.1 is used it shall mean the American Welding Society Structural Welding
Code, D 1.1 as modified and amended by the AASHTO Standard Specifications for Welding
of Structural Steel Highway Bridges. After completion of welding, coating damage to coated
reinforcing steel bars shall be repaired.
When required or permitted, a mechanical connection may be used to splice reinforcing steel
bars or as substitution for dowel bars. The mechanical connection shall be capable of devel-
oping a minimum of 125% of the yield strength of the reinforcing bar in both tension and
compression. All parts of mechanical connections used on coated bars, including steel splice
sleeves, bolts, and nuts shall be coated with the same material used for repair of coating
damage.
3.07 CUTTING
When coated reinforcing bars are cut in the field, the ends of the bars shall be coated with the
same material used for repair of coating damage. All rebar cut in the field shall be cut with a
cut-off saw, any other method must be approved by the ENGINEER.
END OF SECTION
RRF Outlet Pipe 03210-6 Reinforcing Steel
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 03310-1 Structural Concrete
SECTION 03310
STRUCTURAL CONCRETE
PART 1 GENERAL
1.01 SECTION INCLUDES
The CONTRACTOR shall furnish all labor, tools and equipment for the construction of
reinforced cast-in-place concrete for sills as shown on the Drawings and herein specified.
This section includes basic finishing and curing methods, accessory control, and expansion
and contraction joint devices.
1.02 CONCRETE PRODUCER QUALIFICATIONS
The ready-mixed concrete supplier to the CONTRACTOR shall have the capability to
produce and deliver concrete, meeting the requirements of the Drawings and Specifications.
The supplier shall have a contingency plan for a back-up plant in the event of a mechanical
malfunction of one of the primary plant(s). This plan shall be submitted in accordance with
Section 01330.
1.03 RELATED SECTION
A. Section 03110 - Structural Cast-In-Place Concrete Forms
B. Section 03210 – Reinforcing Steel
C. Section 03320 - Construction Joints
D. Section 03350 - Concrete Finishing
E. Section 03900 - Concrete Curing
1.04 QUALITY STANDARDS
A. American Society for Testing Materials (ASTM)
1. ASTM C 33 - Concrete Aggregates
2. ASTM C 94 - Ready Mixed Concrete
3. ASTM C 150 - Portland Cement
4. ASTM C 260 - Air-entraining Admixtures for Concrete
5. ASTM C 494 - Chemical Admixtures for Concrete
6. ASTM C 618 - Fly Ash in Portland Cement Concrete
7. ASTM C 979 - Pigments for Colored Concrete
RRF Outlet Pipe 03310-2 Structural Concrete
8. ANSI/ASTM D 994 - Preformed Expansion Joint Fillers
9. ASTM D 1751 - Preformed Non-Extruding and Resilient Expansion Joint
Fillers
10. ASTM D 3575 - Test Methods for Flexible Cellular Materials made from
Olefin Polymers
B. American Concrete Institute (ACI)
1. ACI 211 - Standard Practice for Selecting Proportions for Concrete
2. ACI 212 - Guide for Use of Concrete Admixtures
3. ACI 221 - Guide for Use of Normal Weight Aggregates
4. ACI 301 - Structural Concrete for Buildings
5. ACI 304 - Guide for Measuring, Mixing, Transporting and Placing Concrete
6. ACI 305 - Hot Weather Concreting
7. ACI 306 - Cold Weather Concreting
8. ACI 309 - Standard Practice for Consolidating Concrete
9. ACI 318 - Building Code Requirements for Structural Concrete
10. ACI 503 - Use of Epoxy Compounds
11. ACI 504 - Guide to Joint Sealants
1.05 SUBMITTALS
A. Product Data:
1. Admixtures (such as air-entraining and water-reducing admixtures)
2. Fly Ash
3. Form Release Agents
4. Ready Mixed Concrete Mix Designs
5. Form Ties
6. Bonding Agents
7. Grouts
8. Vibrator Specifications
RRF Outlet Pipe 03310-3 Structural Concrete
9. Ready-Mixed Concrete Plant Production Contingency Plan
1.06 QUALITY ASSURANCE
A. Acquire cement and aggregate from the same source for all work.
B. Conform to ACI 305 for hot weather concrete placement
C. Conform to ACI 306 for cold weather concrete placement
D. Conform to ACI 309 for concrete consolidation
1.07 CONTRACTOR ASSISTANCE
The CONTRACTOR shall assist the OWNER or his concrete testing consultant as requested
during the performance of quality control testing. When concrete is placed using a concrete
pumper, concrete for testing will be taken from the pumper discharge hose.
1.08 DELIVERY, STORAGE, AND HANDLING
A. Ready-Mixed Concrete Delivery Ticket:
The ready-mixed concrete truck driver shall provide the batch ticket to the
ENGINEER at the time of concrete delivery. The ticket shall summarize the
following information legibly in an easily discernible table:
1. Weight in pounds of all materials, excepting the water reducing and air-
entraining agents which shall be in ounces.
2. Cubic yards batched
3. The ratio of water to cementitious (W / C) materials ratio
4. Temperature of the concrete at the time it was batched
5. Time of batching.
6. Free moisture in the fine and coarse aggregates in percent of weight of
aggregate.
7. Gallons of water that may be added at the site without exceeding the
permissible W / C ratio.
B. Delivery:
Delivery shall conform to the recommendations of ACI 304 as determined by the
ENGINEER.
RRF Outlet Pipe 03310-4 Structural Concrete
PART 2 PRODUCTS
2.01 CEMENT
Cement shall be Portland Cement Type II, unless otherwise indicated on the Drawings.
2.02 AGGREGATE
A. Fine Aggregate:
Fine aggregate shall consist of hard, strong, durable particles to the provisions of
ASTM C 33.
B. Coarse Aggregate:
Coarse aggregate shall conform to the provisions of ASTM C 33 except that all
aggregate shall be crushed aggregate. Screened aggregate is unacceptable.
2.03 WATER
Water shall be clean and free from injurious amounts of oils, acids, alkalis, salts, organic
materials, or other substances that may be deleterious to concrete or steel. Mixing water for
prestressed pretensioned and prestressed post-tensioned concrete or for concrete which will
contain aluminum embedments, shall not contain deleterious amounts of chloride ion.
Unless otherwise permitted or specified in the Drawings, the concrete shall be proportioned
and produced to have a slump not to exceed four inches or less than two and one-half inches.
Concrete not consolidated by internal vibration shall be proportioned to have a slump not to
exceed five and one-half inches or less than four inches. The slump shall be determined by
the "Test for Slump of Portland Cement" ASTM C 143.
2.04 ADMIXTURES
Admixtures to be used in concrete shall be subject to prior acceptance by the ENGINEER.
The admixture shall maintain the same composition and performance throughout the work as
the product used in the concrete proportions established in accordance with ACI 211.
Admixtures containing chloride ions shall not be used.
A. Air Entrainment:
An air-entraining agent shall be used in all concrete. The agent used shall conform
to ASTM C 260.
Unless otherwise shown in the Drawings, the amount of air entraining agent used in
each concrete mix shall be such as will effect the entrainment of the percentage of air
shown in the following tabulation in the concrete as discharged from the mixer. This
table is applicable for concrete strengths less than 5000 psi.
RRF Outlet Pipe 03310-5 Structural Concrete
Table 1
Nominal
max.
aggregate
size, in.
Average air content, percent
Severe exposure Moderate
exposure
3/8 7 1/2 ± 1 1/2 6 ± 1 1/2
¾ 6 ± 1 1/2 5 ± 1 1/2
1 1/2 5 1/2 ± 1 1/2 4 1/2 ± 1 1/2
The level of exposure will be determined by the ENGINEER.
B. Water Reducing, Set-Controlling Admixture:
The CONTRACTOR shall use a “mid-range” water reducing, set controlling
admixture, Polyheed 997, or equal. The water-reducing admixture shall be used in
all concrete and shall conform to ASTM C 494, specifically Types A, B, C, D and E.
C. Finely Divided Mineral Admixtures:
Mineral admixtures shall be limited to fly ash conforming to ASTM C 618, Class C.
2.05 BATCHING
Measuring and batching of materials shall be done at a batching plant.
A. Portland Cement:
Either sacked or bulk cement may be used. No fraction of a sack of cement shall be
used in a batch of concrete unless the cement is weighed. Bulk cement shall be
weighed on scales separate and distinct from the aggregate hopper or hoppers.
Batching shall be such that the accuracy of batching shall be plus or minus one
percent of the required weight.
B. Water:
Unless water is to be weighed, the water-measuring equipment shall include an
auxiliary tank from which the measuring tank shall be filled. In lieu of the volume
method, the CONTRACTOR will be permitted to use a water-metering device.
C. Aggregates:
Aggregates shall be handled from stockpiles or other sources to the batching plant in
such a manner as to secure a uniform grading of the material. Aggregates that have
become segregated, or mixed with earth or foreign material, shall not be used.
Batching shall be so conducted as to result in the weights of material required for
each type aggregate within a tolerance of two percent.
Free water contents of the coarse and fine aggregates shall be continuously tested
RRF Outlet Pipe 03310-6 Structural Concrete
and concrete mixture adjusted for moisture conditions of the aggregate in order to
meet the designated water/cement ratio.
D. Fine Aggregate:
The proportion of fine aggregate shall be between 36 and 44 percent by volume of
the total aggregates in the concrete.
2.06 MIXING
Ready-mixed concrete shall be either “central mixed” or “shrink mixed” concrete as defined
in ASTM C 94. “Truck mixed” concrete as defined in ASTM C 94 shall not be permitted.
Mixing time shall be measured from the time water is added to the mix, or cement contracts
the aggregate. All concrete shall be homogeneous and thoroughly mixed, and there shall be
no lumps or evidence of undispersed cement. Mixers and agitators, which have an
accumulation of hard concrete or mortar, shall not be used. Ready-mixed concrete shall be
mixed and transported in accordance with ASTM C 94.
The temperature of mixed concrete, immediately before placing shall not be less than 50°F or
more than 80°F for slabs larger than 10,000 square feet and not be less than 50°F or more
than 85°F for walls. Aggregates and water shall be heated or cooled as necessary to produce
concrete within these temperature limits. Neither aggregates nor mixing water shall be
heated to exceed 150°F.
The time elapsing from the time water is added to the mix (or the cement comes in contact
with aggregate) until the concrete is deposited in place at the site of the work shall not
exceed 45 minutes when the concrete is hauled in non-agitating trucks, nor more than 90
minutes when hauled in truck mixers or truck agitators.
The batch shall be so charged into the drum that a portion of the mixing water shall enter in
advance of the cement and aggregates. The flow of water shall be uniform and all water shall
be in the drum by the end of the first 1/4 of the specified mixing time.
Cement shall be charged into the mixer by means that will not result in loss of cement due to
the effect of wind, or in accumulation of cement on surfaces of hoppers or in other
conditions which reduce or vary the required quantity of cement in the concrete mixture.
2.07 TRANSPORTING MIXED CONCRETE - MIXED CONCRETE OR TRUCK MIXERS
Transporting of mixed concrete shall conform to ASTM C 94.
Truck agitators shall be loaded not to exceed the manufacturer's guaranteed capacity. They
shall maintain the mixed concrete in a thoroughly mixed and uniform mass during hauling.
No additional mixing water shall be incorporated into the concrete during hauling or after
arrival at the delivery point, unless approved. If additional water is to be incorporated into
the concrete at the site, the drum shall be revolved not less than 30 revolutions at mixing
speed after the water is added and before discharge is commenced. One addition of water at
the site to adjust mix workability is permitted but the maximum water cement ratio shall not
be exceeded.
RRF Outlet Pipe 03310-7 Structural Concrete
The CONTRACTOR shall furnish a water-measuring device in good working condition,
mounted on each transit mix truck, for measuring the water added to the mix on the site. All
water tanks on transit mix trucks shall be filled prior to being batched and arrive at the
construction site 100% full.
Each load of ready mixed concrete delivered at the job shall be accompanied by the ticket
referencing design mix and showing volume of concrete, the weight of cement in pounds,
percent of free water in coarse and dry aggregates, and the total weight of all ingredients in
pounds. The ticket shall also show the time of day at which the materials were batched and
the reading of the revolution counter at the time the truck mixer is charged. See Paragraph
1.08.
2.08 COMPRESSIVE STRENGTH
Concrete compressive strength requirements consist of a minimum strength that must be
obtained before various loads of stresses are applied to the concrete and, for concrete
designated by strength, a minimum strength at the age of 28 days. Unless otherwise shown
on the Drawings the 28-day compressive strength of structural concrete shall be a minimum
of 4,000 psi.
The mix shall be designed for required strengths in accordance with ACI 301. The ratio of
water to the sum of concrete + pozzolan shall not exceed 0.41 by weight for durable,
watertight, concrete. The amount of fly ash in the mix shall be between 15 and 20 percent by
weight of the total cementitious materials.
2.09 CONCRETE VIBRATORS
Concrete vibrators for consolidating concrete shall be 2 1/2 inch diameter "high cycle"
vibrators with a frequency under load of 8,000 - 10,400 vibrations per minute (vpm).
Concrete vibrators of lesser capacity are unacceptable for use in any part of the construction.
The CONTRACTOR shall have at least one standby concrete vibrator ready for use for every
two concrete vibrators in use during a concrete placement.
PART 3 EXECUTION
3.01 PRIOR TO PLACEMENT
Prior to placing concrete the CONTRACTOR shall remove all debris and thoroughly dampen
the surfaces that will be in contact with the concrete to be placed.
The CONTRACTOR shall use compressed air from an air-compressor to blow-out
construction debris and dirt at the bottom of members to be placed such as walls, beams and
columns, prior to final placement of forms that will obscure any joint. The CONTRACTOR
shall demonstrate to the ENGINEER that all debris, such as concrete particles, saw dust,
loose tie wire, bar tags, tape, trash and dirt, have been thoroughly removed.
No concrete shall be placed when form surfaces that will be in contact with the concrete,
RRF Outlet Pipe 03310-8 Structural Concrete
reinforcement, embedded items or sub-base is less than 32°F. When the mean daily outdoor
temperature is less than 40°F, the temperature of the concrete shall be maintained between
50°F and 70°F for the required curing period. When necessary, arrangements for heating,
covering, insulating, or housing the concrete work shall be made in advance of placement
and shall be adequate to maintain the required temperature without injury due to
concentration of heat. Combustion heaters shall not be used during the first 24 hours unless
precautions are taken to prevent exposure of the concrete to exhaust gases which contain
carbon dioxide.
Concrete shall not be placed against forms exposed to heating by the unless the temperature
of the forms is first cooled to ≤ 90°F.
3.02 PLACEMENT
Placement shall conform to ACI 301, Chapter 8 "Placing", ACI 304R, "Guide of Measuring,
Mixing, Transporting and Placing Concrete," ACI 306 "Recommended Practice for Cold
Weather Concreting", ACI 305 "Recommended Practice for Hot Weather Concreting" and
ACI 309, "Standard Practice for Consolidation of Concrete". No concrete shall be placed
until all formwork, reinforcement, installation of parts to be embedded, bracing of forms, and
preparation of surfaces involved in the placing have been reviewed by the ENGINEER. No
concrete shall be placed in water except with the written permission of the ENGINEER. All
surfaces of forms and embedded materials that have become encrusted with dried mortar or
grout from concrete previously placed shall be cleaned of all such mortar or grout before the
surrounding or adjacent concrete is placed. Immediately before placing concrete, all surfaces
upon or against which the concrete is to be placed shall be free from standing water, mud,
debris or loose materials. The surfaces of absorptive materials against or upon which
concrete is to be placed shall be moistened thoroughly so that moisture will not be drawn
from the freshly placed concrete. The concrete shall be placed by equipment that will
prevent segregation or loss of ingredients. The stream of concrete shall not be allowed to
separate by permitting it to fall freely over rods, spacers or other embedded materials.
No wetting of concrete surfaces during slab finishing operations shall be permitted. Further,
no concrete finishing operation shall be permitted while there is water on the surface of slabs
and other flatwork.
Unless otherwise called out in these Specifications or shown in the Drawings, the placement
lift depth of concrete in walls shall be limited to two feet or less to minimize surface defects
such as air voids that can form on concrete surfaces. Lift depths will be limited to one foot
if, in the opinion of the ENGINEER, the quality of the finish is unacceptable at the 2-foot lift
depth.
3.03 CONSOLIDATION
All concrete shall be thoroughly consolidated with internal vibrators as recommended in ACI
309 immediately after deposition. The concrete shall be thoroughly worked around the
reinforcing steel, around embedded items and into corners of forms. Vibration shall be
supplemented by spading, rodding or forking to eliminate all honeycomb and voids around
embedded items.
The vibrator shall be inserted vertically, allowing it to penetrate rapidly to the bottom of the
lift and at least six inches into the previous lift. The vibrator shall be held at the bottom of
RRF Outlet Pipe 03310-9 Structural Concrete
lift for 5 to 15 seconds. The vibrator shall be pulled up at a rate of about three inches per
second.
The vibrator shall be inserted so that the fields of action overlap. The field of action is
approximately eight times the vibrator’s head diameter. Thus for a 2 1/2 inch diameter
vibrator, the spacing of each insertion will be approximately 20 inches.
Vibration shall be stopped when the concrete surface takes a sheen and large air bubbles no
longer escape.
Do not use a vibrator to move concrete horizontally.
3.04 OPENINGS AND INSERTS
Pipe sleeves, inserts for pipe connections, anchors and forms for pipe holes must be
accurately placed and securely fastened to the forms in such a manner that the placing of
concrete will not alter their alignment or location. In the event that openings are
inadvertently omitted or improperly placed, the ENGINEER may require the concrete to be
cored at the proper location. Filling of improperly placed openings shall be done with
expansive grout or dry pack or mortar applied with an accepted epoxy adhesive. The
surfaces of the opening shall be roughened prior to filling.
3.05 EMBEDDED ITEMS
At the time of concrete placement, embedded items should be clean and free from mud, oil
and other coatings that may adversely affect bonding capacity. Aluminum embedments shall
be coated with a bituminous material to prevent electrolytic action between the embedded
item and reinforcing steel that results in concrete deterioration. Embedment items shall be
accurately placed and securely fastened to the forms in such a manner that the placing of
concrete will not alter their alignment or location. Contact between embedded items and
reinforcing steel or tendon ducts is unacceptable and is not permitted.
3.06 CONSTRUCTION JOINTS
The location of all construction joints will be subject to the acceptance of the ENGINEER.
The surface of all construction joints shall be thoroughly cleaned and all laitance and
standing water removed. Clean aggregate shall be exposed by abrasive blast cleaning. Wire
brushing and air water jets may be used while concrete is fresh provided results are equal to
abrasive blast cleaning. Construction joints shall be keyed at right angle to the direction of
shear. Except where otherwise shown on the Drawings, keyways shall be at least 1-1/2" in
depth over at least 25% of the area of the section.
3.07 EVAPORATIVE RETARDANT
The use of an evaporative retardant is required to assist in proper placement of concrete. See
Section 03390. When an evaporative retardant is used, it shall be applied two times: after
screeding and after the first floating operation. The retardant should be applied at a rate of
one gallon of sprayable solution per 200 - 400 square feet by spraying with an industrial type
sprayer. If the nozzle of the sprayer becomes plugged, the CONTRACTOR shall clean, or
replace, the nozzle. Under no circumstances shall the retardant be used except by spraying a
RRF Outlet Pipe 03310-10 Structural Concrete
mist with a nozzle. The retardant shall be applied in strict conformance with the
manufacturer’s recommendations and precautions. In no case shall the retardant be used as a
finishing agent. The use of an evaporative retardant requires review and approval by the
ENGINEER.
END OF SECTION
RRF Outlet Pipe 03320-1 Construction Joints
SECTION 03320
CONSTRUCTION JOINTS
PART 1 GENERAL
1.01 SECTION INCLUDES
The CONTRACTOR shall supply all labor, tools, equipment and material for the preparation
of construction joints in concrete in accordance with these specifications and as shown in the
Drawings. This includes joints such as column-footing joints, wall construction joints, col-
umn capital-slab joints, grout closures around pipe-slab penetrations and footing-slab joints.
1.02 RELATED SECTIONS
A. Section 03110 - Structural Cast-In-Place Concrete Forms
B. Section 03210 - Reinforcing Steel
C. Section 03310 - Structural Concrete
D. Section 03615 - Grout
1.03 QUALITY STANDARDS
A. American Concrete Institute (ACI)
1. ACI 117 - Standard Tolerance for Concrete Construction and Materials
2. ACI 301 - Specifications for Structural Concrete for Buildings
3. ACI 302 - Guide for Concrete Floor and Slab Construction
4. ACI 318 - Building Code Requirements for Structural Concrete
1.04 CONSTRUCTION REVIEW
The ENGINEER shall review the preparation of all construction joints prior to concrete and
grout closure placements. It is the responsibility of the CONTRACTOR to notify and pro-
vide a minimum of 24 hours notice to the ENGINEER of these activities. If joint placement
is performed without the ENGINEER’s presence, the work will be deemed unacceptable and
non-conforming to these specifications. If the ENGINEER determines that construction re-
view of a particular activity is unnecessary, he will provide written direction to the
CONTRACTOR to proceed with that particular activity without his construction review.
PART 2 PRODUCTS (Not Applicable)
PART 3 EXECUTION
3.01 SURFACE PREPARATION
RRF Outlet Pipe 03320-2 Construction Joints
The surface of concrete construction joints shall be clean and all materials that inhibit bond,
such as curing compounds, laitance, saw dust, wood, dirt, polyethylene, pipe tape coating
and paper shall be removed. Concrete shall be roughened to produce a rough, plus or minus
1/16 inch, surface texture. Concrete surfaces shall be wetted with clean potable water and
standing water removed immediately before new concrete or closure grout is placed. Unless
otherwise called out in the Drawings, a bonding agent shall be used prior to placing the con-
crete or grout.
3.02 PIPE GROUT CLOSURE SECTIONS
A. Pipe Surface Preparation
Unless otherwise detailed in Drawings, all pipes penetrating concrete sections such
as wall and floor slabs shall have all coatings and other materials that can inhibit
bond completely removed from the portion of the pipe to be in contact with the con-
crete or slab closure grout.
B. Ground Surface Preparation
The ground surface at joints such as pipe / slab closures shall be smooth and properly
graded and compacted. All debris such as Styrofoam, paper, polyethylene and
wood shall be removed. The ground surface shall be dampened and prepared to pre-
vent the inclusion of dirt, pieces of aggregate or balls of soil in the concrete or grout.
3.03 CONCRETE AND CLOSURE GROUT PLACEMENT
Mixing, surface preparation in addition to that prescribed above, placement, and curing of
grout at pipe closure joints shall be performed in strict accordance with Specification Section
03615 and when a proprietary grout is specified, with the grout manufacturer’s directions.
Special care shall be taken to insure that the grout is thoroughly and properly consolidated at
waterstops, pipe weep rings, and existing concrete surfaces. An appropriate capacity vibrator
shall be used when necessary or required by the manufacturer to properly consolidate the
grout.
END OF SECTION
RRF Outlet Pipe 03350-1 Concrete Finishing
SECTION 03350
CONCRETE FINISHING
PART 1 GENERAL
1.01 SECTION INCLUDES
The CONTRACTOR shall supply all labor, tools, equipment and materials to finish properly
placed concrete for structures such as box culverts, vaults, foundations, hydraulic and water
retaining structures.
The means and methods of repair of improperly placed or finished concrete shall be reviewed
by the ENGINEER prior to performing the work. Regardless of prior approval of the means
and methods of concrete finish repair, no concrete finish shall be repaired until the
ENGINEER has reviewed the existing finish. This includes defects caused by ineffective
and improper vibration such as honeycomb, excessive air voids on formed surfaces,
placement “pour” lines (cold joints) and sand streaking. It also includes defects caused by
excessive form deflections, form damage or form failure.
Unless otherwise called out in the Drawings tie holes shall be finished as specified herein.
1.02 RELATED SECTIONS
A. Section 03110 - Structural Cast-In-Place Concrete Forms
B. Section 03310 - Structural Concrete
C. Section 03615 - Grout
1.03 QUALITY STANDARDS
A. American Concrete Institute
1. ACI 116 - Cement and Concrete Terminology
2. ACI 121 - Quality Assurance Systems for Concrete Construction
3. ACI 301 - Specifications for Structural Concrete for Buildings
4. ACI SP-15 - ACI 301 Field Reference Manual
5. ACI 304 - Placing Concrete by Pumping Methods
6. ACI 309 - Identification and Control of Consolidation-Related Surface
Defects in Formed Concrete
7. ACI 311 - Guide for Inspection of Concrete
RRF Outlet Pipe 03350-2 Concrete Finishing
B. American Society for Testing and Materials
1. ASTM STP 169C - Significance of Tests and Properties of Concrete and
Concrete-Making Materials
2. ASTM C 150 - Standard Specification for Portland Cement
3. ASTM C 33 - Concrete Aggregates
C. US Department of Interior - Bureau of Reclamation
1. M-47 Standard Specifications for Repair of Concrete
1.04 SUBMITTALS
A. General
Submittals shall be made in accordance with Section 01330.
B. Product Data
1. Grouts
2. Bonding agents
3. Means and methods of repairing defects unless otherwise called out herein.
C. Manufacturer’s safety data sheets
1.05 DELIVERY, STORAGE AND HANDLING
Deliver the materials to the project site in the manufacturer’s containers with all labels intact
and legible at the time of use. Materials shall be stored in a secure, indoor, dry area.
Maintain grouts and aggregates in a dry condition during delivery, storage, and handling.
PART 2 PRODUCTS
2.01 PREMIXED PRE-PACKAGED GROUTS
A. Master Builders EMACO R320
B. Master Builders EMACO S66-CR
2.02 EPOXY BONDING AGENTS
A. Master Builders Concresive Liquid (LPL)
B. Master Builders Concresive Standard Liquid
RRF Outlet Pipe 03350-3 Concrete Finishing
2.03 CEMENT
ASTM C 150, Type 1
2.04 AGGREGATE
ASTM C 33, 100% passing the No. 30 mesh sieve
2.05 BOND COAT MORTAR
Mortar used to bond patching mortar shall be made of the same materials and of
approximately the same proportions as used for the concrete, except that the coarse aggregate
shall be omitted and the mortar shall consist of 1 part cement to not more than 1 part sand by
damp loose volume.
2.06 PATCHING MORTAR
Patching mixture shall be made of the same materials and of approximately the same
proportions as used for the concrete, except that the coarse aggregate shall be omitted and the
mortar shall consist of 1 part cement to not more than 2-1/2 parts sand by damp loose
volume. White Portland Cement shall be substituted for a part of the gray Portland Cement
on exposed concrete in order to produce a color matching the color of the surrounding
concrete, as determined by a trial patch. The quantity of mixing water shall be no more than
necessary for handling and placing. The patching mortar shall be mixed in advance and
allowed to stand with frequent manipulation with a trowel, without addition of water, until it
has reached the stiffest consistency that will permit placing.
2.07 WATER
Only clean potable water shall be used. A calibrated measuring device is required for
measuring the proper amount of water to be added to pre-packaged grouts and mortars.
PART 3 EXECUTION
3.01 REPAIR OF SURFACE DEFECTS
Surface defects, unless otherwise specified by the Contract Documents, shall be repaired
immediately after form removal but not before review by the ENGINEER. The surface
temperature of the concrete shall be 50° F and rising. The CONTRACTOR shall measure
surface temperatures when requested by the ENGINEER. If necessary the CONTRACTOR
shall enclose and heat the area to be repaired to bring the surface temperature of the concrete
and air temperature to acceptable levels and to permit proper curing.
All honeycombed and other defective concrete shall be removed down to sound concrete. If
chipping is necessary, the edges shall be perpendicular to the surface or slightly undercut.
Feathered edges will not be permitted. The area to be patched and an area at least six inches
wide surrounding it shall be dampened to prevent absorption of water from the patching
mortar. A bonding grout shall be prepared, mixed to the consistency of thick cream, and
after surface water has evaporated from the area to be patched, well brushed into the surface.
RRF Outlet Pipe 03350-4 Concrete Finishing
When the bond coat begins to lose the water sheen, the premixed patching mortar shall be
applied. The mortar shall be thoroughly consolidated into place and struck off so as to leave
the patch slightly higher than the surrounding surface. To permit initial shrinkage, it shall be
left undisturbed for at least one hour before being finally finished. The patched area shall be
kept damp for seven days. Metal tools shall not be used in finishing a patch in a formed wall
that will be exposed.
3.02 TIE HOLES
A. Water Retaining Structures and Below Grade Vaults with Breakback Cone Ties
Fill tie holes solid as specified in Section 03615.
B. Other Structures
After being cleaned and thoroughly dampened, fill tie holes solid as specified in
Section 03615.
3.03 PROPRIETARY MATERIALS
Certain types of defects may require the use proprietary compounds for adhesion or as
patching ingredients. The ENGINEER will review these defects and request means and
methods for these repairs from the CONTRACTOR.
In lieu of, or in addition to, the foregoing patching procedures using bond coat and patching
mortars, epoxy bonding agents and premixed pre-packaged grouts may be used for repair of
defective areas. Such compounds shall be used in accordance with the manufacturer's
written recommendations and directions. The ENGINEER shall review and provide written
acceptance of these procedures.
3.04 FINISHING OF FORMED AND UNFORMED SURFACES
Finishes shall be performed as called out in the Drawings and in referenced Specifications.
A. Formed Surfaces
1. Smooth Form Finish
The form facing material shall produce a smooth, hard, uniform texture on
the concrete. The arrangement of the facing material shall be orderly and
symmetrical, with the number of seams kept to the practical minimum.
Surface textures that result from forms with raised grain, torn surfaces, worn
edges, patches, dents, or other defects shall be ground smooth or otherwise
repaired.
a. Air Voids on Formed Surfaces
Air voids on formed surfaces deeper than 1/4 inch shall be filled
with patching mortar. The frequency and size of air voids shall be
equal to or better than shown in Figure 1. The total void area is 1%
of the surface area, or 0.36 sq. in. This 6-inch x 6-inch figure is the
RRF Outlet Pipe 03350-5 Concrete Finishing
visual standard for acceptance of the finish that does not require
filling of air voids.
b. Tie Holes
Tie holes shall be filled as specified in section 03615.
c. Form Fins
Chip or rub-off form fins exceeding 1/16 inch in height.
Figure 1
RRF Outlet Pipe 03350-6 Concrete Finishing
d. Rock Pockets
Poorly consolidated concrete shall be removed to sound concrete
and the defect repaired. The ENGINEER shall outline the area to be
repaired.
2. As-Cast Finish
For as-cast concrete finish form materials shall produced a sound surface.
a. Air Voids
Fill air voids deeper than 1/4 inch. and larger than 0.50 sq. in. The
total area of acceptable air voids is 0.72 sq. in. in a 6 inch by 6-inch
square.
b. Tie Holes
Tie holes shall be filled as specified in section 03615.
c. Form Fins
Chip or rub-off form fins exceeding 1/8 inch in height.
3. Rubbed Finish
Immediately after removing the forms, form ties shall be broken back a
minimum of 3/4 inch from the surface, honeycomb, voids and other surface
defects grouted. The surfaces shall then be thoroughly dampened and
rubbed with a No. 16 carborundum stone or equal abrasive to create a
uniform surface paste. The rubbing shall be continued to remove all form
marks and surface irregularities producing a smooth, dense surface. After
setting, the surface shall then be rubbed with a No. 30 carborundum stone
until the surface is smooth in texture and uniform in color. Unless otherwise
shown in the Drawings only exposed surfaces shall have a rubbed finish.
4. Grout Finish
Prepare surface as described in Rubbed Finishes above. Mix one part
Portland cement and one-half parts fine sand with sufficient water to
produce a grout with the consistency of thick paint. Wet surface of concrete
to prevent absorption of water from grout and apply grout uniformly with
brushes. Immediately after applying grout mix, scrub the surface with a cork
float or stone to coat surface and fill remaining air voids and other remaining
surface defects. Remove excess grout by working the surface with rubber
float. After the surface whitens from drying, rub with clean burlap. Cure
surface for a period of 72 hours
RRF Outlet Pipe 03350-7 Concrete Finishing
B. Unformed Surface
Unless otherwise shown in the Drawings unformed surfaces shall be finished as
follows.
1. Slabs
Screed with straightedge to remove low and high spots bringing the surface
to the required finish elevation of slope and float with a steel float at least 3
feet in width. When the concrete has reached its initial set, finish with a
steel (power) trowel. Leave finish essentially free of trowel marks, uniform
in texture and appearance and plane to the correct tolerance. Dusting the
surface with dry cement, sand or sprinkling with water is prohibited.
Finishes that are exposed and subject to foot traffic shall receive a broom
finish with a texture of ± 1/16 inch.
2. Tops of Walls with Bearings
Strike smooth tops of walls and similar unformed surfaces that will have
bearings or bearing pads, and finish with a steel trowel.
3. Tops of Exposed Footings in Reservoirs
Strike smooth tops of footings and finish with a light broom providing a
texture of ± 1/16 inch.
4. Stairways and Sidewalks
Strike smooth tops of stairs and sidewalks and finish with a light broom
providing a texture of ± 1/16 inch.
5. Slabs with Waterproofing Membranes
Strike smooth and float finish.
6. Construction Joint Surfaces
Surface shall be broom or raked finished. Surface shall be water or grit
blasted prior to placing additional concrete, such as columns on column
footings and column footings on reservoir slabs.
END OF SECTION
RRF Outlet Pipe 03350-8 Concrete Finishing
THIS PAGE INTENTIONALLY LEFT BLANK.
RRF Outlet Pipe 03390-1 Concrete Curing
SECTION 03390
CONCRETE CURING
PART 1 GENERAL
1.01 WORK INCLUDED
The CONTRACTOR shall furnish all labor, tools and equipment for curing plain and
reinforced cast-in-place concrete.
1.02 RELATED WORK
A. Section 03310 – Structural Concrete
B. Section 03320 – Construction Joints
C. Section 03350 – Concrete Finishing
1.03 QUALITY STANDARDS
A. American Concrete Institute (ACI)
1. ACI 305 - Hot Weather Concreting
2. ACI 306 - Cold Weather Concreting
3. ACI 308 - Standard Practice for Curing Concrete
B. American Society for Testing Materials (ASTM)
1. ASTM C 171 – Sheet Materials for Curing Concrete
2. ASTM C 309 – Liquid Membrane-Forming Compounds for Curing Concrete
3. ASTM D 2103 – Polyethylene Film and Sheeting
1.04 SUBMITTALS
Provide data on curing compounds sheet materials and methods of securing sheet materials in
place.
1.05 QUALITY CONTROL
Perform the work in accordance with this Specification and in accordance with applicable
ACI standards. When a conflict occurs between this Specification and ACI occurs, the ACI
standard shall control. The CONTRACTOR shall have a copy of the current applicable ACI
standards on site. All materials shall be used in accordance with the manufacturer’s printed
instructions, a copy of which shall be on site.
1.06 DELIVERY, STORAGE AND HANDLING
RRF Outlet Pipe 03390-2 Concrete Curing
Deliver, store and handle products under the provisions of Section 01650.
Deliver curing materials in manufacturer’s original packaging including applicable
instructions and manufacturer’s safety data sheets (MSDS).
PART 2 PRODUCTS
2.01 SHEET MATERIALS FOR CURING CONCRETE
White burlap-polyethylene sheeting weighing not less than 10 oz/linear yard, 40 inches wide,
impregnated on one side with white opaque polyethylene 0.004 inches thick as specified in
ASTM C 171 shall be used when called out in the Drawings or in other applicable
specifications. The polyethylene shall be securely bonded to the burlap so that there will be
no separation.
2.02 LIQUID MEMBRANE-FORMING COMPOUNDS FOR CURING CONCRETE
Liquid membrane-forming compounds for curing concrete shall and conform to ASTM C
309, Type 1-D with a red or white fugitive dye. Use a white dye unless otherwise directed by
the ENGINEER.
2.03 POLYETHYLENE FILM
Polyethylene film shall conform to ASTM D 2103. The film shall have a thickness of 6 mils
and be a white opaque color.
2.04 LIQUID MEMBRANE FORMING COMPOUND AND EVAPORATIVE RETARDANT
APPLICATORS/ SPRAYERS
Membrane curing and evaporative retardant compounds shall be applied with a sprayer
manufactured by Allen Engineering, Inc., or equal, capable of maintaining a constant
pressure. (Allen Engineering, Inc., P.O. Box 819, Paragould, Arizona 74450, telephone (800)
643-0095.) Unless otherwise accepted in writing by the ENGINEER, spraying membrane
curing compounds or evaporative retardants by other methods, such as hand pressurized
sprayers, is unacceptable.
2.05 EVAPORATIVE RETARDANT
Confilm manufactured by Master Builders, Inc. or approved equal.
2.06 WATER
Water shall only be used when prior approval is granted by the ENGINEER. Only water that
has been determined to be non-detrimental to concrete shall be used.
RRF Outlet Pipe 03390-3 Concrete Curing
PART 3 EXECUTION
3.01 GENERAL
Beginning immediately after placement, concrete shall be protected from premature drying,
excessively hot or cold temperatures, and mechanical injury, and shall be maintained with
minimal moisture loss at a relatively constant temperature for the period necessary for
hydration of the cement and hardening of the concrete in accordance with ACI 308,
"Standard Practice for Curing Concrete". The materials and method of curing shall be subject
to review and acceptance by the ENGINEER. Specific curing requirements may be called
out on the Drawings or other Technical Specifications.
Curing shall be continued for at least seven days. Alternatively, if tests are made of cylinders
kept adjacent to the structure and cured by the same methods, moisture retention measures
may be terminated when the average compressive strength has reached 70% of the specified
concrete strength.
When a spray applied membrane-curing compound is used, it shall be applied in two coats
with the second coat applied at right angles to the first coat.
3.02 EVAPORATIVE RETARDANT
An evaporative retardant shall be used during concrete placement for water retaining
structure floor and roof slabs and other slabs larger than 2,500 square feet in size. The
retardant shall be sprayed using a power sprayer at a rate of 10 gallons per 2,000 square feet
after screeding and repeated after the first floating operation. The evaporative retardant shall
not be applied during the final steel troweling operations or after the water sheen has
disappeared from the concrete surface.
3.03 SLABS
For concrete surfaces not in contact with forms, a procedure determined by the ENGINEER
shall be applied immediately after completion of placement and finishing.
3.04 WALLS AND COLUMNS
Moisture loss from surfaces placed against wooden or metal forms exposed to heating by the
sun shall be minimized by keeping the forms wet until they can be safely removed. After
form removal, the concrete shall be cured until the end of the curing time by one of the
previously described curing methods. Concrete shall not be placed against forms that have
been exposed to air below freezing temperatures until the forms have been heated so that the
surface temperature of the form is ≥ 40° F.
The top of walls and columns not covered by forms shall be cured using a membrane-curing
compound conforming to ASTM C 309 immediately after placement
3.05 OTHER SURFACES
Unless otherwise shown in the Drawings all other surfaces shall be cured using two
applications of a membrane-curing compound conforming to ASTM C 309. The second
application shall be applied at 90° to the first application.
3.06 COLD WEATHER
RRF Outlet Pipe 03390-4 Concrete Curing
Curing during cold weather conditions shall include the above methods except for water cure
unless measures are taken to prevent freezing of the water.
3.07 HOT WEATHER
If the rate of evaporation approaches 0.2 lb/ft2
/hr, as estimated by ACI 305, precautions
against plastic shrinkage cracking are required. The CONTRACTOR shall have a recording
thermometer, hygrometer and wind gage on site seven days prior to first concrete placement.
When necessary, provision for windbreaks, shading, fog spraying, sprinkling, ponding, or wet
covering with a light colored material shall be made in advance of placement, and such
protective measures shall be taken as quickly as concrete hardening and finishing operations
will allow. Precautions against plastic shrinkage cracks may be required in conditions other
than what is normally considered hot weather conditions.
3.08 RATE OF TEMPERATURE CHANGE
Changes in temperature of the air immediately adjacent to the concrete during and
immediately following the curing period shall be kept as uniform as possible and shall not
exceed 5° F in any one hour or 50° F in any 24-hour period.
3.09 PROTECTION FROM MECHANICAL INJURY
During the curing period, the concrete shall be protected from damaging mechanical
disturbances, such as load stresses, heavy shock, and excessive vibration. All finished
concrete surfaces shall be protected from damage by construction equipment, materials, or
methods, by application of curing procedures, and by rain or running water. Self-supporting
structures shall not be loaded in such a way as to overstress the concrete.
END OF SECTION
RRF Outlet Pipe 03615-1 Grout
SECTION 03615
GROUT
PART 1 GENERAL
1.01 SECTION INCLUDES
The Contractor shall furnish all labor, tools and equipment for the placement of grout in tie
holes and other locations as shown on the Drawings and specified herein.
This section includes basic mixing, application, and curing methods for grout.
Contractor shall have a printed set of manufacturer’s recommendations for product use on
site for review during preparation, mixing and application of grouts.
1.02 RELATED SECTIONS
A. Section 03110 - Structural Cast-In-Place Concrete Forms
B. Section 03310 - Structural Concrete
C. Section 03320 - Construction Joints
D. Section 03350 - Concrete Finishing
E. Section 03900 - Concrete Curing
1.03 QUALITY STANDARDS
A. ASTM C 78 - Test Method for Flexural Strength of Concrete (Using Simple Beam
with Third-Point Loading
B. ASTM C 109 - Test Method for Compressive Strength of Hydraulic Cement Mortars
- Modified
C. ASTM C 469 - Test Method for Static Modulus of Elasticity and Poisson’s Ratio of
Concrete in Compression
D. ASTM C 666 - Test Method for Resistance of Concrete to Rapid Freezing and
Thawing
E. ASTM C 882 - Test Method for Bond Strength of Epoxy Resin Systems used with
Concrete - Modified
F. ASTM C 1012 - Test Method for Length Change of Hydraulic Cement Mortars Ex-
posed to Sulfate Solution - Modified
G. ASTM C 1202 - Electrical Indication of Resistance to Chloride Ion Penetration
RRF Outlet Pipe 03615-2 Grout
1.04 SUBMITTALS
A. Grout
B. Bonding Agent
C. Curing Compound
1.05 QUALITY ASSURANCE
A. Field Tests
1. When the Owner is to perform grout testing, the Contractor shall assist the
Owner or his concrete testing consultant as requested during the perform-
ance of quality control testing.
2. When prescribed in the Drawings or by these Specifications, length change
test specimens will be taken during construction from the first placement of
each type of mortar, and at intervals thereafter as selected by the Engineer to
insure continued compliance with these specifications. Unless otherwise
specified on the Drawings or Specifications the testing will be performed by
the Owner or testing representative.
3. When required length change tests and fabrication of specimens for cement
based mortar will be performed as specified in ASTM C 1012 at intervals
during construction as selected by the Engineer. A set of three specimens
will be made for testing at 7 and 28 days.
4. All mortar, already placed, that fails to meet the requirements of this Speci-
fication, is subject to removal and replacement at the cost of the Contractor.
5. Unless otherwise specified in the Drawings or Specifications, the cost of all
laboratory tests on grout will be borne by the Owner, but the Contractor shall
assist the Engineer in obtaining specimens for testing. However, the Con-
tractor shall be charged for the cost of any additional tests and investigation
on work performed which does not meet the Specifications.
B. Construction Tolerances
Construction tolerances shall be as specified in the Section 03110 except as modified
herein and elsewhere in the Contract Documents.
1.06 ACCEPTABLE MANUFACTURERS/PRODUCTS
Master Builders Technologies
EMACO R320 - Polymer-Modified Vertical/Overhead Patching Mortar
MB 429, Masterkure CR, Masterkure 200W or Masterkure 100W - curing com-
pounds
RRF Outlet Pipe 03615-3 Grout
1.07 DELIVERY, STORAGE AND HANDLING
Cement based mortar shall be delivered and stored in manufacturer’s packaging until it is
ready to be mixed and placed. Mortar bags shall be stored off the ground and protected from
water and all other substances that will penetrate packaging.
PART 2 PRODUCTS
2.01 MORTAR FOR TIE HOLES
EMACO R320 or approved equal.
2.02 BONDING ADHESIVES
Concresive Liquid LPL, Concresive Standard Liquid or approved equal.
2.03 WATER
Only clean potable water shall be used. A calibrated measuring device is required for meas-
uring the proper amount of water to be added to grouts and mortars.
2.04 CURING COMPOUND
MB 429, Masterkure 100W, Masterkure 200Wor approved equal.
2.05 (EXPOSED) REINFORCING STEEL COATING
EMACO P22 or approved equal.
PART 3 EXECUTION
3.01 GENERAL
These grouts contain admixtures that increase grout strength and workability. The strength
and performance of the grout is dependent on proper surface preparation, grout mixing and
curing. The Contractor shall be required to use a calibrated measuring device to add clean
potable water to the grout mix. Water added to a grout mix without a calibrated device is
cause for grout rejection, removal and re-placement.
Curing is critical to prevent shrinkage cracks that can develop with grouts containing some
admixtures. Curing shall begin immediately after placement.
All mixing, surface preparation, handling, placing, consolidation, and other means of execu-
tion for pre-packaged mortars shall be done according to the instructions and recommenda-
tions of the manufacturer and this Specification. In the event that a conflict occurs between
this Specification and manufacturer’s instructions, the manufacturer’s instructions shall pre-
vail in all cases.
RRF Outlet Pipe 03615-4 Grout
3.02 GROUT FOR TIE HOLES
A. Preparation:
Thoroughly clean the roughened surface and any exposed reinforcement of rust, dirt,
loose chips, and dust. Maintain substrate in a saturated, surface-dry condition.
Where applicable, exposed reinforcing steel shall be coated with EMACO P22 rein-
forcing steel bar protection coating prior to patching.
B. Mixing:
Comply with mortar manufacturer’s recommendations for water quantity. Mechani-
cally mix with a slow speed drill (400 to 600 RPM) and Jiffler-type paddle. Pour
approximately 90% of the mix water into the mixing container; then add the bagged
material while continuing to mix. Add remaining water as needed. Mix time shall
not exceed 5 minutes.
C. Application:
Apply bonding adhesive such as Concresive Liquid LPL or Concresive Standard
Liquid.
Place and finish with trowel or screed. In hot, windy, or dry conditions, where rapid
surface evaporation may occur, use Confilm Evaporation Reducer.
D. Curing:
Apply Masterkure 200 W curing compound in accordance with label instructions.
END OF SECTION
RRF Outlet Pipe
DIVISION 5 - METALS
SECTION 05500 METAL FABRICATIONS
Robert Benson Dam 05500 - 1 Metal Fabrications
SECTION 05500
METAL FABRICATIONS
PART 1 GENERAL
1.01 DESCRIPTION
A. This section covers items fabricated from metal shapes, plates, sheets, pipe, or cast
metal.
1.02 QUALITY ASSURANCE
A. All materials and Work to conform with applicable provisions of AISC "Steel
Construction Manual", AISC "Specifications for the Design, Fabrication and Erection
of Structural Steel for Buildings" and AISC "Specifications for Structural Joints Using
ASTM A325 or A490 Bolts".
B. Welding procedures, welders and welding operators shall be qualified and certified in
accordance with AWS, maintain welders certification on file at site.
C. Grating and grating treads: Comply with the recommendations in "Metal Bar Grating
Manual" of National Association of Architectural Metal Manufacturers.
1.03 SUBMITTALS
A. Submit Shop Drawings in accordance with Section 01340.
1. Include the following additional items:
a. Shop coating manufacturer with film thickness.
b. Include proper identification of all welds.
c. Complete information regarding locations, type, size and length of
field welds in accordance with "Standard Welding Symbol", A2.4 of
the American Welding Society.
B. Before shipment submit inspection and test reports on welding and high-strength bolted
connections.
1.04 PRODUCT DELIVERY, STORAGE AND HANDLING
A. Delivery.
1. Deliver embedded items in time to permit installation prior to placing concrete
and masonry.
2. Wrap aluminum railings prior to shipment.
3. Prepare all items to avoid damage in transit.
B. Handling.
1. Protect against bending.
2. Protect shop coating.
Robert Benson Dam 05500 - 2 Metal Fabrications
3. Use suitable equipment.
C. Storage.
1. Place on blocks above ground or water.
2. Support to prevent bending.
3. Prevent collection of water in items.
PART 2 PRODUCTS
2.01 GENERAL
A. Bolts, Anchor Bolts and Expansion Anchors to be suitable for the service conditions.
1. Use hot-dip galvanized or corrosion resistant fasteners where buried,
immersed, in saturated air and in splash zones.
2. Use stainless steel fasteners where noted on Drawings and where specified
with items to be fastened.
3. Use unfinished bolts in all other locations.
4. Use self-locking nuts or lock washers on all bolts.
5. Use stainless steel bolts on aluminum fabrications and all expansion anchors.
2.02 STEEL
A. Plates, shapes and bars.
1. Steel, ASTM A36, except as otherwise indicated.
2. Stainless, ASTM A165, 18-8.
3. Galvanize after fabrication all frames to be set in concrete for gratings and
checked plates.
B. Pipe; ASTM A53.
C. Structural tubing: ASTM A500 or A501, hot-formed structural quality carbon steel,
welded or seamless.
D. Bolts and nuts.
1. High Strength: ASTM A325, Type 1 or 2.
2. Unfinished: ASTM A307.
3. Stainless Steel: IFI-104, Grade 303 or 305.
4. Galvanized: ASTM A307, bolts with oversized nuts, hot-dip ASTM A153 or
A385.
5. Corrosion resistant: high strength, low alloy steel, ASTM A 325, Type 3. (Cor-
Ten, Usalloy, or equal)
6. Self-locking nuts: IFI-100, Grade A, torque type.
7. Flat Washers: ANSI B27.2, same material as nuts.
8. Lock Washers: ANSI B27.1, spring type.
9. Beveled Washers: AISC, Table 1.
2.03 CAST IRON
Robert Benson Dam 05500 - 3 Metal Fabrications
A. Material: ASTM A48, Class 25.
2.04 ALUMINUM
A. Sheet and Plates: ASTM B209, alloy 6061-T6.
B. Pipe: ASTM B429, alloy 6061-T6, or 6063-T6.
C. Castings: ASTM B26, ASTM B85 or Fed. Spec. QQ-A-200/A.
D. Checkered plate: alloy 6061-T6.
2.05 ACCESSORIES
A. Handrail Setting Cement: Hallemite "Por-Rok Cement".
B. Expansion Anchors: Fed. Spec. FF-S-325; wedge type, Group II, Type 4, Class 1 or 2;
or self-drilling type, Group III, Type I.
C. Anchor Studs: Headed end deformed anchors shall be by Nelson Stud Welding Co.,
KSM Stud Welding Systems, or equal.
2.06 CONSTRUCTION
A. Bolt.
1. Use unfinished bolts except where otherwise noted on Drawings.
2. Use self-locking nuts or lock washers on all bolts.
3. Use stainless steel bolts on aluminum fabrications.
B. Weld.
1. Weld continuously all butt and miter joints.
2. Grind smooth all exposed welds.
3. Provide at least 2-inch effective length not more than 6 inches apart for
intermittent welds.
4. Comply with AWS D1.1.
C. Finishing.
1. Where finishing is indicated, complete the assembly including welding before
finishing.
D. Check holes and connection in shop for proper fit.
E. Provide holes required for fastening other items to structural members and for the
passage of other items through structural members.
F. Mark each separate piece as indicated on fabrication and erection drawings.
G. Mark and match-mark members for field assembly.
H. Provide all field connection bolts, nuts and washers.
Robert Benson Dam 05500 - 4 Metal Fabrications
I. Grind sharp corners and shear edges. Close exposed ends of steel pipe or tubing with
welded caps.
J. Clean steel surfaces by power brushing or blasting; remove weld splatter, flux and slag.
K. Galvanizing.
1. Pickle before galvanizing.
2. Hot-dip after fabrication, ASTM A123, A153 and A385.
L. Expansion Anchors.
1. Install in conformity with manufacturer's recommendations for maximum
pull-out force.
2. Provide minimum embedment of not less than four bolt diameters.
3. Provide minimum clear space between holes of not less than 2 times
embedment depth.
4. Provide minimum edge distance to face of concrete of not less than
embedment depth.
M. Anchor bolts.
1. Provide thread length to allow nut on concrete side of forms or template.
2. Provide extra nut for concrete side of forms or template.
N. Substitutions.
1. Where exact sizes and weights called for are not available secure the Engineers
approval of suitable sizes prior to proceeding.
2.07 SHOP COATING
A. Materials.
1. Rust inhibitive shop primer for steel: Cook "391-R-259 Clorocon Barrier
Coat", Mobil "13-R-50 Chromox Q.D. Primer", or Tnemec "77 Chem-Prime".
2. Coal tar paint: Koppers "Bitumastic Super Service Black", Porter "Tarmastic
103", or Tnemec "450 Heavy Tnemecol".
B. Applications.
1. Dry and have proper surface temperature.
2. Remove all grease, oil, dirt, rust, loose mill scale and other objectionable
materials.
3. Coat castings with hot-dipped asphalt varnish or coal tar paint.
4. Coat ungalvanized steel with rust inhibitive primer.
5. Coat aluminum with coal tar paint at surfaces that will be in contact with
concrete mortar, or dissimilar metals other than stainless steel.
6. Do not coat zinc coated steel, stainless steel or non-ferrous surfaces.
7. Provide film thickness of 1 1/2 mils for rust inhibitive primer and 6 mils for
coal tar paint.
PART 3 - INSTALLATION
Robert Benson Dam 05500 - 5 Metal Fabrications
3.01 CONNECTIONS
A. Clean joint contact surfaces.
B. Assemble as shown on Shop Drawings.
C. Drifting to match unfair holes shall not be permitted.
D. Enlarge holes by reaming with twist drills.
E. Weld or bolt all items securely in place or otherwise fasten as indicated on the
Drawings or reviewed Shop Drawings. Include all items indicated, scheduled or listed
in Part 2. Grind field welds smooth and touch up with primer.
3.02 GRATING
A. Shall lie flat without rocking.
B. Within 3/16 inch of length and 1/8 inch of width shown on the Shop Drawings.
C. Opposite diagonals less than 1/4 inch difference.
D. Less than 1/4 inch clear space between panels.
E. Anchor securely in place, as recommended in NAAMM manual.
F. Use stainless steel for grating and all accessories.
G. Provide fastening devices to hold grating down.
3.03 ANCHOR BOLTS
A. Set firmly in place by bolting to forms or template.
END OF SECTION
Robert Benson Dam 05500 - 6 Metal Fabrications
PAGE INTENTIONALLY LEFT BLANK.
DIVISION 7 - THERMAL AND MOISTURE PROTECTION
SECTION 07905 JOINT SEALERS FOR PRECAST
CONCRETE MANHOLES
RRF Outlet Pipe 07905-1 Joint Sealers for
Precast Concrete Manholes
SECTION 07905
JOINT SEALERS FOR PRECAST CONCRETE MANHOLES
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The CONTRACTOR shall furnish all labor, tools, equipment and install joint sealer
for precast concrete manholes and roof slabs where shown in the Drawings and as
specified herein.
1.02 RELATED SECTIONS
A. Section 02635 - Manhole Structures
1.03 QUALITY STANDARDS:
A. AASHTO M198 - Joints for Circular Concrete Sewer and Culvert Pipe Using
Flexible Watertight Gaskets
1.04 SUBMITTALS:
A. The CONTRACTOR shall submit product specifications for all items pertaining
to the work covered in this section.
PART 2 PRODUCTS
2.01 MATERIALS
A. General: Joint sealer shall be preformed, plastic gasket with hydrocarbon resins
and inert mineral filler, in accordance with AASHTO M198, Type B.
B. Primers: Primers shall be used when recommended by the joint sealer
manufacturer.
C. Acceptable Manufacturers:
1. K. T. Snyder - Ram-Nek
2. Hamilton-Kent - Kent-Seal No. 2
3. Sheller-Globe - Tac-Tite
RRF Outlet Pipe 07905-2 Joint Sealers for
Precast Concrete Manholes
PART 3 EXECUTION
3.01 PREPARATION
A. The CONTRACTOR shall clean the concrete surfaces in accordance with the
manufacturer’s recommendations. Mask edges, if required, to protect adjoining
surfaces and produce a straight finish line. If required by the manufacturer,
prime concrete surfaces with the recommended primer. Install bond breaker tape
as required by the manufacturer to ensure that the sealant will perform properly.
3.02 APPLICATION
A. Apply the sealant in continuous beads without open joints, voids or air pockets.
Remove excess sealer promptly as work progresses and clean adjacent surfaces.
Apply the sealer in accordance with the manufacturer’s printed instructions and
specifications.
END OF SECTION