HomeMy WebLinkAboutBID - 10105 Precast Manholes & InletsITB 10105 PRECAST MANHOLES & INLETS
INVITATION TO BID
10105 PRECAST MANHOLES & INLETS
BID DUE: 3:00 PM MT (our clock), January 31, 2025
The City of Fort Collins is requesting bids from qualified Vendors for precast concrete manholes & inlets.
As part of the City’s commitment to Sustainable Purchasing, electronic bid submission is
required. Bids shall be submitted online through the Rocky Mountain E-Purchasing System
(RMEPS) at http://www.bidnetdirect.com/colorado/city-of-fort-collins. Please note: submitting bids
through RMEPS may need additional time for completion. Bids not submitted by the designated Opening
Date and Time will not be accepted by the system.
Any additional questions should be submitted, in writing via email, to JD McCune, Senior Buyer
at jmccune@fcgov.com, no later than 3:00 PM MT (our clock) on January 22, 2025. Please format
your e-mail to include: ITB 10105 Precast Manholes & Inlets in the subject line. Questions received after
this deadline may not be answered. Responses to all questions submitted before the deadline will be
addressed in an addendum and posted on the Rocky Mountain E-Purchasing System webpage.
Rocky Mountain E-Purchasing System hosted by BidNet
A copy of the Bid may be obtained at http://www.bidnetdirect.com/colorado/city-of-fort-collins.
Prohibition of Unlawful Discrimination: The City of Fort Collins, in accordance with the provisions of
Title VI of the Civil Rights Act of 1964 (78 Stat. 252, 42 US.C. §§ 2000d to 2000d-4) and the Regulations,
hereby notifies all bidders that it will affirmatively ensure that any contract entered into pursuant to this
advertisement, disadvantaged business enterprises will be afforded full and fair opportunity to submit
bids in response to this invitation and will not be discriminated against on the grounds of race, color, or
national origin in consideration for an award.
The City strictly prohibits unlawful discrimination based on an individual’s gender (regardless of gender
identity or gender expression), race, color, religion, creed, national origin, ancestry, age 40 years or older,
marital status, disability, sexual orientation, genetic information, or other characteristics protected by law.
For the purpose of this policy “sexual orientation” means a person’s actual or perceived orientation toward
heterosexuality, homosexuality, and bisexuality. The City also strictly prohibits unlawful harassment in
the workplace, including sexual harassment. Further, the City strictly prohibits unlawful retaliation against
a person who engages in protected activity. Protected activity includes an employee complaining that
he or she has been discriminated against in violation of the above policy or participating in an employment
discrimination proceeding.
The City requires its Vendor to comply with the City’s policy for equal employment opportunity and to
prohibit unlawful discrimination, harassment and retaliation. This requirement applies to all third-party
Vendor and their subcontractors/subconsultants at every tier.
Public Viewing Copy: The City is a governmental entity subject to the Colorado Open Records Act,
C.R.S. §§ 24-72-200.1 et seq. (“CORA”). Any proposals submitted hereunder are subject to public
disclosure by the City pursuant to CORA and City ordinances. Vendor may submit one (1) additional
complete proposal clearly marked “FOR PUBLIC VIEWING.” In this version of the proposal, Vendor may
redact text and/or data that it deems confidential or proprietary pursuant to CORA. Failure to provide a
Financial Services
Purchasing Division
215 N. Mason St. 2nd Floor
PO Box 580
Fort Collins, CO 80522
970.221.6775
fcgov.com/purchasing
ITB 10105 PRECAST MANHOLES & INLETS
public viewing copy will be considered a waiver of any claim of confidentiality under CORA without regard
to how the applicant’s proposal or certain pages of the proposal are marked confidential, proprietary, or
similar. Such statement does not necessarily exempt such documentation from public disclosure if
required by CORA, by order of a court of appropriate jurisdiction, or other applicable law. Generally,
under CORA trade secrets, confidential commercial and financial data information is not required to be
disclosed by the City. Proposals may not be marked “Confidential” or ‘Proprietary’ in their entirety. By
responding to this RFP, Vendor hereby waives any and all claims for damages against the City for the
City’s good faith compliance with CORA. All provisions of any contract resulting from this request
for proposal will be public information.
Special Instructions
All bids must be properly signed by an authorized representative of the company with the legal capacity
to bind the company to the agreement. Bids may be withdrawn up to the date and hour set for closing.
Once bids have been accepted by the City and closing has occurred, failure to enter into contract or
honor the purchase order will be cause for removal of supplier's name from the City of Fort Collins' bidders
list for a period of twelve months from the date of the opening. The City may also pursue any remedies
available at law or in equity.
Submission of a bid is deemed as acceptance of all terms, conditions and specifications contained in the
City's specifications initially provided to the Vendor. Any proposed modification must be accepted in
writing by the City prior to award of the bid.
Only bids properly received by the Purchasing Office will be accepted. All bids should be clearly
identified by the bid number and bid name contained in the bid proposal.
No bid will be accepted from, or any purchase order awarded, to any person, firm or corporation in default
on any obligation to the City.
Bids must be furnished exclusive of any federal excise tax, wherever applicable.
Vendors must be properly licensed and secure necessary permits wherever applicable.
The City may elect where applicable to award bids on an individual item/group basis or on a total bid
basis, whichever is most beneficial to the City. The City of Fort Collins reserves the right to split the Bid
award to multiple vendors as deemed by the City to be most advantageous. The City reserves the right
to accept or reject any and all bids, and to waive any irregularities or informalities.
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.
Freight terms: unless otherwise noted, all freight is F.O.B. Destination, Freight Prepaid. All freight
charges must be included in the unit prices submitted.
Collusive or sham bids: any bid deemed to be collusive or a 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.
ITB 10105 PRECAST MANHOLES & INLETS
Utilization of Award by Other Agencies: The City of Fort Collins reserves the right to allow other state
and local governmental agencies, political subdivisions, and/or school districts to utilize the resulting
award under all terms and conditions specified and upon agreement by all parties. Usage by any other
entity shall not have a negative impact on the City of Fort Collins in the current term or in any future terms.
Vendor Registration: The City requires new Vendor receiving awards from the City to submit IRS form
W-9 or W-8BEN/W8-BEN-E (international firms) and requires all Vendor to accept Direct Deposit
(Electronic) payment. If needed, the W-9 form and the Vendor Direct Deposit Authorization Form can be
found on the City’s Purchasing website at www.fcgov.com/purchasing under Vendor Reference
Documents. Please do not submit these documents with your proposal, however, if you take
exception to participating in Direct Deposit (Electronic) payments please clearly note such in your
proposal as an exception. The City may waive the requirement to participate in Direct Deposit
(Electronic) payments at its sole discretion.
Bid results are posted online at http://www.bidnetdirect.com/colorado/city-of-fort-collins.
Gerry Paul
Purchasing Director
ITB 10105 PRECAST MANHOLES & INLETS
CITY OF FORT COLLINS
GENERAL INFORMATION
The City of Fort Collins is requesting bids for precast inlets and manholes per Specification 02605
Manholes, Inlets and Vaults, attached and incorporated hereto as Exhibit 1.
Schedule
The following represents the City’s target schedule for the bid. The City reserves the right to amend the
target schedule at any time.
•Bid issuance:
•Question deadline:
•Final Addendum issued:
•Bid Due Date:
January 10, 2025
3:00 PM MT on January 22, 2025
January 27, 2025
3:00 MT (our clock) on January 31, 2025
Method of Award
The City reserves the right to split the bid award in whatever percentages are most advantageous to the
City. Award may be by line item, group of items or all items.
Awards from this bid will be based primarily on the evaluated bid price. Delivery lead times and exceptions
taken will also be considered.
Agreement
The awarded Vendor will receive a Purchase Order from the City authorizing orders. Vendor should not
begin any Work prior to receipt of the Purchase Order.
Invoices & Payments
Invoices for services should be emailed to invoices@fcgov.com. A separate copy shall be sent to the
Project Manager.
Fees, Licenses, Permits
The successful Vendor shall be responsible for obtaining any necessary licenses, fees or permits without
additional expense to the City. All equipment shall be properly licensed and insured, carry the appropriate
permits and be placarded as required by law.
Laws and Regulations
The Service Provider/Professional agrees to comply fully with all applicable local, State of Colorado and
Federal laws and regulations and municipal ordinances to include American Disabilities Act (ADA).
Warranty
Vendor warrants all equipment, materials, labor and other work, provided under this Agreement, except
City-furnished materials, equipment and labor, against defects and nonconformances in design, materials
and workmanship/workwomanship for a period beginning with delivery and ending twelve (12) months
from and after final acceptance under the Agreement, regardless whether the same were furnished or
performed by Vendor or by any of its subcontractors of any tier. Upon receipt of written notice from City
of any such defect or nonconformances, the affected item or part thereof shall be redesigned, repaired
or replaced by Vendor in a manner and at a time acceptable to City.
ITB 10105 PRECAST MANHOLES & INLETS
CITY OF FORT COLLINS
BID SUBMITTAL INSTRUCTIONS
The following items must be provided in the bid submittal package:
Bid Submittal (The Bid Submittal is provided as a spreadsheet or as a PDF within the
ITB. One version MUST be returned as a part of the Bid within Bidnet.)
Acknowledgement. (Provided as a PDF in the ITB or separate as a Word Document
in BidNet. One version MUST be filled out completely and returned as part of the Bid
within Bidnet.)
Other documents may be submitted in Word or PDF format.
Failure to submit any of the above may result in your bid being considered non-responsive.
ITB 10105 PRECAST MANHOLES & INLETS
10105 PRECAST MANHOLES & INLETS
BID SUBMITTAL
Any surcharges or additional costs shall be noted & included in each line item of the bid submittal.
ITEM # QTY DESCRIPTION UNIT
PRICE
DELIVERY
LEAD TIME
Precast Concrete
Inlets:
1 6 Single Combination
Type 13 Inlet
2 4 Double Combination
Type 13 Inlet
3 2 Triple Combination
Type 13 Inlet
4 1 Quadruple
Combination Type 13
Inlet
5 1 5-foot Type R Inlet
6 1 10-foot Type R Inlet
7 1 15-foot Type R Inlet
8 1 Type C Inlet (CDOT)
9 1 Type D Inlet (CDOT)
Precast Concrete
Manholes:
1 9 4-foot diameter
manhole
2 1 5-foot diameter
manhole
3 7 6-foot diameter
manhole
4 1 7-foot diameter
manhole
ITB 10105 PRECAST MANHOLES & INLETS
ACKNOWLEDGEMENT
Vendor hereby acknowledges receipt of the City of Fort Collins Invitation to Bid and acknowledges
that it has read and agrees to be fully bound by all the terms, conditions and other provisions set
forth in 10105 Precast Manholes & Inlets except as otherwise noted. Additionally, Vendor hereby
makes the following representations to City:
a. All of the statements and representations made in this proposal are true to the best
of the Service Provider/Professional’s knowledge and belief.
b. The undersigned is authorized to do business in the State of Colorado and hereby
proposes to furnish and/or perform the services set forth in the Scope of Work and
Specifications, including all items listed on the Bid Schedule.
c. Vendor commits that it is able to meet the terms set forth in the Invitation to Bid, and
further acknowledges familiarity with all aspects of the project affecting the cost of the
work to be performed.
d. The undersigned does hereby declare and stipulate that this bid proposal is made in
good faith, without collusion or connection with any other person or persons bidding for
the same Work.
e. This bid proposal is a firm and binding offer, for a period of 90 days from the date hereof.
f. Vendor further agrees that the method of award is acceptable.
g. Vendor acknowledge receipt of addenda.
h. Vendor acknowledges no conflict of interest.
i. Failure to provide a public viewing copy will be considered a waiver of any claim of
confidentiality under Colorado Open Records Act (CORA). Vendor hereby waives any
and all claims for damages against the City for the City’s good faith compliance with
CORA.
Legal Firm Name:
Physical Address:
Remit to Address:
Phone:
Name of Authorized Agent of Firm:
Signature of Authorized Agent:
Primary Contact for Project:
Title: Email Address:
Phone: Cell Phone:
NOTE: ALL BID SUBMITTAL FORM PAGES MUST BE COMPLETED, SIGNED WHERE
REQUIRED & RETURNED WITH YOUR BID PROPOSAL PACKAGE.
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-1
SECTION 02605
MANHOLES, VAULTS AND INLETS
PART 1 GENERAL
1.01 DESCRIPTION
A.This section covers the furnishing and placement of all manholes, vaults and inlets
and related materials and other appurtenances for water, sanitary, and stormwater
systems as detailed in the Construction Drawings.
B.Manholes shall be built according to the details shown on the Construction
Drawings. Where invert elevations prohibit the use of a standard manhole, a
shallow manhole with a flat top shall be used.
1.02 QUALITY ASSURANCE
A.Lay pipe and set manhole inverts true to line and grade shown on Construction
Drawings. Under no circumstances shall pipe be laid which results in a level invert,
reverse sloping invert, or a grade flatter than shown on the Construction Drawings.
1.03 JOB CONDITIONS
A.Use effective measures to prevent foreign material from entering the pipes into
manholes, vaults, or inlets.
B.Use effective measures to prevent the uplift or floating of manholes, vaults or inlets
prior to completion of the backfilling operation.
PART 2 PRODUCTS
2.01 CAST-IN-PLACE STRUCTURES
A.Manholes, Vaults, and Inlets
1.Concrete shall meet the requirements of Division 3.
2.Pipe penetration gaskets.
a.Reference Section 01000 – Approved Product Listing
b.Or An Approved Equal.
3.Reference Construction Drawings for type of base required.
EXHIBIT 1
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-2
2.02 PRECAST STRUCTURES
A. Manholes, Vaults, and Inlets
1. Precast base and first barrel section monolithic, conformance ASTM C478,
Type II cement and shall be marked by the manufacturer.
2. Shall meet HS 25 traffic loading specifications and 300 PSF surcharge load.
3. Pipe penetration gaskets.
a. Reference Section 01000 – Approved Product Listing
b. Or An Approved Equal.
4. Invert
a. Material: reference Division
b. Compressive Strength: 4000 psi at 28 days.
c. Invert shall be poured in conformance with Section 02605.3.02.B of
these Standards.
5. Reference Construction Drawings for type of base required.
B. Precast concrete sections shall be produced using Type II cement and fabricated in
accordance with ASTM C-478.
2.03 Barrels, Cones, and Grade Rings
A. Material: Precast Concrete, ASTM C478.
B. Cement: Type II.
C. Manhole joints shall be made using male and female ends so that when assembled
they make a continuous, uniform, and watertight manhole.
2.04 MANHOLE FRAMES AND COVERS
A. Manhole frames and covers shall be minimum 400 lb. cast iron, 24-inch I.D. (clear
opening).,
B. The cover shall fit the ring in accordance with the manufacturer's dimensions.
Manhole covers for water, sanitary sewer, or storm sewer structures shall have a
concealed pick hole.
C. Covers with more than one lifting hole will not be accepted.
D. Bearing Surfaces: Machined, required for pavement and pedestrian locations,
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-3
knobby (type K) pattern.
E. Castings shall be free from holidays.
F. Aluminum covers are required on all meter vaults placed within non-traffic areas and
shall be locking type.
G. Manufacturers
1. Reference Section 01000 – Approved Product Listing
2. Or An Approved Equal.
H. Frost proof covers for water system appurtenances, if required, shall be grey iron
conforming to ASTM A48-83 Class 35B, and shall have a minimum clear opening of
22”.
2.05 MANHOLE STEPS
A. Manhole steps shall be polypropylene, and shall be either cast into the manhole wall
or drilled into the manhole wall at the same time the manhole section is installed.
The manhole steps shall be approximately 9 inches wide by 13 inches long, shall
weigh approximately 2 pounds and shall be no more than 28 inches from the top of
the manhole nor more than 18 inches from the floor of the manhole, vault, or inlet
and shall be spaced no more than 12 inches apart.
B. Manufacturers
1. Reference Section 01000 – Approved Product Listing
2. Or An Approved Equal.
2.06 JOINTS
A. Mortar
1. Mortar used in jointing precast adjustment rings and pointing the inside of all
joints between barrels 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 C150, 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. The
fine aggregate shall be thoroughly washed and shall be uniformly graded
form coarse to fine with a minimum of 95% passing a #4 sieve and a
maximum of 7% passing a #100 sieve. All mortar shall be fresh for the work
at hand. Mortar that has begun to set shall not be used.
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-4
B. Sealants
1. The Contractor shall use preformed rope type plastic gaskets between
precast sections.
2. Acceptable Manufacturers.
a. Reference Section 01000 – Approved Product Listing
b. Or An Approved Equal.
c. "Ram-Nek" is not acceptable.
3. Two gaskets are required per joint.
4. Manufacturers approved primer required on both surfaces of joints.
5. Diameter:
a. 1-1/2 inch for up to five (5) inch wall thicknesses.
b. 2 inch for six (6) inch and greater wall thicknesses.
6. Gasket shall meet the requirements of ASTM C 443 or AASHTO M 198.
2.07 INSULATION
A. Insulation shall be installed on all air relief vaults.
B. Ridged board insulation shall be minimum 1” thick closed-cell insulation board
suitable for use in contact with soil or water.
C. Sprayed foam insulation shall be minimum 1” thick closed-cell insulation suitable for
use in contact with soil or water.
2.08 GROUT
A. Reference Section 01000 – Approved Product Listing
B. Or An Approved Equal.
PART 3 EXECUTION
3.01 PREPARATION
A. Perform excavation in accordance with Section 02225, Trenching, Bedding And
Backfill.
3.02 CONSTRUCTION
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-5
A. Construct structures at locations and elevations indicated on the Construction
Drawings or otherwise designated by Engineer/Utility to accommodate field
conditions. Size is indicated on the Construction Drawings.
B. Invert channels shall be smooth and conform to the details shown on the
Construction Drawings. Changes in direction of flow shall be made with a smooth
curve having as large a radius as the manhole will permit (See City Standard Detail).
Terminate pipe flush with interior wall and construct transitions smooth and of proper
radius for uninterrupted flow. In no case shall the invert flow section through the
structure be greater than that of the outgoing pipe. Finish invert prior to adding any
riser sections. Construct top of bench in manholes to match highest pipe crown or
as shown on the Construction Drawings.
C. Set each section plumb. Use sections of various heights to bring ring and cover or
top of vault or inlet to grade shown on the Construction Drawings. Where standard
manholes are used, the internal diameter of manhole barrels shall be maintained to
a distance of not more than 4 feet below finished grade. From that point the
manhole barrel shall be tapered to a 24 inch internal diameter. The manhole barrels
shall be tight at all joints. All manholes shall be watertight.
D. Cones shall not be less than 8 inches nor more than 16 inches from the top of the
manhole ring. Precast adjustment rings shall be used on top of the cone to support
and adjust the manhole frame to the required final grade. The outside of the adjust
rings shall be covered by mortar, 5/8 inch thick and troweled smooth.
E. Join sections using preformed flexible plastic gaskets on both interior and exterior
shiplaps unless otherwise noted on Construction Drawings. All joint surfaces shall
be clean, dry, and warm during installation.
F. Fill all lifting holes and other imperfections with grout.
G. Neatly mortar the inside and outside of all horizontal joints. The mortar shall not be
less than 5/8 inch thick over the joint, and shall extend at least 4 inches either side
of the joint.
H. The joint between a cast-in-place base and the lowest precast section shall be
grouted, inside and outside.
I. Install rings and covers above cone of the manhole. Set ring in a full bed of mortar,
and encase in mortar around the entire perimeter, except in pavement areas.
Mortar shall be fresh for the work at hand. Mortar that has begun to set shall not be
used.
J. Do not preheat pre-formed plastic gasket material with a direct flame. Preheat the
material by other means until it is pliable.
K. Where shown on the Construction Drawings a piece of pipe of the proper size shall
be built into the manhole where future laterals may be connected. This pipe shall be
sealed with a plug at its outer end and an invert shall be built into each manhole for
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-6
such lateral connections.
L. The physical connection to the existing sewer system shall be plugged until the
sewer has been completed to the satisfaction of the Engineer/Utility.
M. Sanitary sewer services shall not be connected to manholes. All services shall be
tapped into the sewer main.
N. The minimum thickness of a cast-in-place base shall not be less than 8 inches under
the invert of the manhole channel.
O. The storm sewer may be laid continuously through manhole locations wherever
grade and alignment permit, and the manhole built later. In such cases, the base
shall be laid and carried up approximately 2 inches above the top of the pipe. After
manholes are built, the upper half of the pipe shall be cut out and the bottom
finished.
P. Any curb opening greater than six (6) inches in height must have a metal bar
welded horizontally across the inlet for public safety purposes such that no
opening height is greater than 6 inches.
Q. All inlet covers must be stenciled or stamped with the following designation: NO
DUMPING - DRAINS TO RIVER
3.03 CONNECTION TO EXISTING MANHOLES
A. Storm sewer connections to existing manholes, where there is no existing pipe
stubbed out shall conform as nearly as possible to the essential requirements
specified for new manholes. The Contractor shall break out as small an opening in
the existing manhole as necessary to insert the new pipe. The existing concrete
foundation bench shall be reshaped in order to form a smooth, rounded base similar
to what should be formed in a new concrete base. Cement grout shall be used as
necessary to smoothly finish the new base and to seal the new line so the junction is
water-tight. New deflectors shall be installed to create a manhole consistent with
the Construction Drawings.
B. Sanitary sewer connections to existing manholes, where there is no existing pipe
stubbed out shall conform as nearly as possible to the essential requirements
specified for new manholes. The Contractor shall core drill as small an opening in
the existing manhole as necessary to insert the new pipe. The existing concrete
foundation bench shall be reshaped in order to form a smooth, rounded base similar
to what should be formed in a new concrete base. Cement grout shall be used as
necessary to smoothly finish the new base. A penetration gasket shall be used to
seal the new line so the manhole for a water-tight connection. Sanitary sewer
services shall not be connected to manholes. All services shall be tapped into the
sewer main.
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-7
3.04 MARKING COMPLETED MANHOLES IN NEW DEVELOPMENTS
A. Upon completion of backfill around manhole, a 4” x 4” timber shall be placed next to
each manhole, the exposed portion of which shall be no less than 4 feet above the
finished elevation of the subgrade.
3.05 FIELD QUALITY CONTROL
A. Sewer shall meet the requirements of the following tests. Furnish all equipment,
labor and incidentals necessary and conduct tests in the presence of Engineer.
1. Vacuum tests and leakage tests shall be used to test the sanitary sewer
manholes.
B. Vacuum Testing of Sanitary Sewer Manholes
1. Manholes shall be vacuum tested after assembly and prior to backfilling.
a. Care shall be taken to affect a seal between the vacuum base and
the manhole rim. Pipe plugs shall be secured to prevent movement
while the vacuum is drawn.
b. A vacuum of 10 inches of mercury shall be drawn. The time for the
vacuum to drop to 9 inches of mercury shall be recorded.
c. Acceptance shall be defined as when the time to drop to 9 inches
meets or exceeds the following:
Diameter Time to Drop 1" Hg
4 ft. 60 seconds
5 ft. 75 seconds
6 ft. 90 seconds
8 ft. 120 seconds
d. If the manhole fails the test, make necessary repairs. Repairs and
repair procedures must be acceptable to Engineer.
e. If preformed plastic gaskets are pulled out during the vacuum test,
the manhole shall be disassembled and the gaskets shall be
replaced.
C. Each manhole shall be watertight and shall not have any visible leaks or damp
spots.
D. Repair and retest manholes that fail tests until satisfactory results are obtained.
3.06 CLEANING
A. Prior to completion of the Work, remove all accumulated construction debris, rocks,
gravel, sand, silt and other foreign material from the manhole.
DEVELOPMENT STANDARDS Manholes, Vaults, and Inlets
UPDATED: 06/02/2017
02605-8
B. Upon final inspection if any foreign matter is present in the system, re-clean the
manhole as required.
Install ring and covers on one or a maximum of two precast adjusting rings of
varying heights, not to exceed 4 inches in height each. The total allowable height of
adjusting rings and the ring and cover shall be as shown on the Construction
Drawings. Set rings in a full bed of mortar and encase in mortar around the entire
perimeter. Unless otherwise indicated, set the top of the rings such that no part of
the ring or cover will project above a point 1/4 inch below the finish surface of
pavement in paved areas subject to cleaning by snowplows.
At air valve and access manhole locations the concrete manhole barrel sections and
flat lid shall be insulated with rigid insulation on the exterior or sprayed foam
insulation on the interior, to a minimum depth of 4 feet below ground level.
Fill all lifting holes and other imperfections with mortar. Neatly point inside of joints
no matter what joint material is used.
END OF SECTION