HomeMy WebLinkAboutBID - 8098 TIMBERLINE & HORSETOOTH INTERSECTION IMPROVEMENTSADDENDUM NO. 1
SPECIFICATIONS AND CONTRACT DOCUMENTS
Description of BID 8098: Horsetooth & Timberline Intersection Improvements
OPENING DATE: 3:00 PM (Our Clock) April 21, 2015
To all prospective bidders under the specifications and contract documents described above,
the following changes/additions are hereby made and detailed in the following sections of this
addendum:
Exhibit 1 – Descriptions of Clarifications & Revisions
Exhibit 2 – Revised Specifications
Exhibit 3 – Revised Plans
Please contact John Stephen, CPPO, LEED AP, 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.
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
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EXHIBIT 1 – DESCRIPTIONS OF CLARIFICATIONS & REVISIONS
I. Project Clarifications:
A. The “No Work Zone” shown in the plan set on the southeast corner of Horsetooth
and Timberline has been cleared (As of April 1, 2015) and the Contractor will be
able to work in this area following a Notice to Proceed from the City.
II. Revisions to the Project Planset:
A. The Traffic Signal Notes and Tabulations sheet showing the removal items
required by the Contractor has been revised. The “Removal of Traffic Signal
Equipment” line item now ONLY includes the following:
Caissons (Top 3 feet) – 4 EA
o This revision adds the removal of the top 3 feet of the existing
concrete caissons for the traffic signals – subsidiary to Item 202
Removal of Traffic Signal Equipment.
All other removals will be done by the City of Fort Collins traffic department.
III. Revisions to the Project Specifications:
Below is a summary of each revision to the Project Specifications. See the attached
Revised Project Specifications for more specific details regarding contract changes.
Revised Project Specifications have been included for the following items:
A. Revision of Section 105 – Control of Work
o This revision adds additional closure information for Horsetooth Road.
Full closure of Horsetooth Road will be allowed in accordance with these
restrictions.
B. Revision of Section 107 – Legal Relations and Responsibility to Public
o This revision adds in language specifying haul vehicles traveling to or
from Martin Marietta Materials in Fort Collins, CO must enter and exit
from the north. It also adds a requirement that all vehicles transporting
aggregate material or asphalt paving material must be covered to prevent
material from escaping the vehicle.
C. Revision of Section 108 – Prosecution and Progress
o This revision requires the Contractor to submit a Traffic Control Plan and
Construction Phasing Schedule prior to the Pre-Construction Conference.
D. Revision of Section 403 – Hot Mix Asphalt (Warranty)
o This revision changes the amount of warranty work at the Contractor’s
expense from $275,000 to $150,000.
E. Revision of Section 630 – Construction Zone Traffic Control
o This revision removes “Flagging” and “Portable Message Sign Panel”
from the “Construction Zone Traffic Control” Lump Sum item. These
items have a separate line item and will be paid accordingly.
F. Revision of Section 630 – Construction Zone Traffic Control
o This revision modifies the “Work Zone Phasing” heading to reflect full
closure options along Horsetooth Road from May 31, 2015 through
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August 15, 2015. The contractor will be required to submit Construction
Phasing Plans and Traffic Control Plans to the city for approval prior to
construction.
IV. Pre-Bid Clarifications Not Resulting in Changes to the Bid Documents:
A. None at this time
V. Pre-Bid Clarifications Resulting in Changes to the Bid Documents:
A. None at this time
VI. Revisions to the Project Bid Tab:
A. None at this time
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EXHIBIT 2 – REVISED SPECIFICATIONS
PROJECT AND STANDARD SPECIAL
PROVISIONS
Horsetooth Road / Timberline Road
Operational Improvement Project
Federal Aid Project No. AQC M455-010 (19307)
Bid No. 8098
Prepared for:
City of Fort Collins
Engineering Department
281 North College Avenue
Fort Collins, CO 80522-0580
(970) 221-6605
April 7, 2015
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PROJECT SPECIAL PROVISIONS
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COLORADO DEPARTMENT OF TRANSPORTATION
CITY OF FORT COLLINS, COLORADO
HORSETOOTH RD/TIMBERLINE ROAD OPERATIONAL IMPROVEMENT PROJECT
FEDERAL AID PROJECT NO. AQC M455-010 (19307)
PROJECT SPECIAL PROVISIONS
The General Conditions of the Construction Contract and the Colorado Department of Transportation’s (CDOT)
Standard Specifications for Road and Bridge Construction, 2011 Edition, control construction of this project. Where
there are conflicts between the two, the more stringent shall control.
The following Special Provisions supplement or modify the CDOT Standard Specifications and take precedence over
the Standard Specifications and plans.
Item Date Page
Index Pages (January 29, 2015) 3
Notice to Bidders (January 29, 2015) 5
Commencement and Completion of Work (January 29, 2015) 6
Contract Goal (Combined) (January 29, 2015) 8
OJT Contract Goal (January 29, 2015) 9
Revision of Section 101 - Definitions of Terms (January 29, 2015) 10
Revision of Section 102 - Project Plans and Other Data (January 29, 2015) 11
Revision of Section 105 - Control of Work (January 29, 2015) 12
Revision of Section 105 – Claims for Contract Adjustment (January 29, 2015) 15
Revision of Section 106 - Control of Material (January 29, 2015) 16
Revision of Section 107 – Insurance (January 29, 2015) 20
Revision of Section 107 - Environmental Controls (January 29, 2015) 21
Revision of Section 107 – Legal Relations and Responsibility
To Public (January 29, 2015) 23
Revision of Section 108 - Prosecution and Progress (January 29, 2015) 24
Revision of Section 108 – Limitation of Operations (January 29, 2015) 27
Revision of Section 201 – Clearing and Grubbing (January 29, 2015) 28
Revision of Section 202 – Removal of Inlet (January 29, 2015) 29
Revision of Section 202 - Removal of Pipe (January 29, 2015) 30
Revision of Section 202 - Removal of Sidewalk (January 29, 2015) 31
Revision of Section 202 - Removal of Curb and Gutter and
Median Cover (January 29, 2015) 32
Revision of Section 202 - Removal of Concrete Pavement (January 29, 2015) 33
Revision of Section 202 - Removal of Asphalt Mat (January 29, 2015) 34
Revision of Section 207 – Topsoil (Special) (January 29, 2015) 35
Revision of Section 208 – Erosion Control (January 29, 2015) 37
Revision of Section 210 – Reset Water Meter (January 29, 2015) 38
Revision of Section 210 – Reset Fire Hydrant (January 29, 2015) 39
Revision of Section 210 – Modify Manhole (January 29, 2015) 40
Revision of Section 210 – Modify Structure (January 29, 2015) 41
Revision of Section 212 – Tree Retention and Protection (January 29, 2015) 42
Revision of Section 304 - Aggregate Base Course (January 29, 2015) 47
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COLORADO DEPARTMENT OF TRANSPORTATION
CITY OF FORT COLLINS, COLORADO
HORSETOOTH RD/TIMBERLINE ROAD OPERATIONAL IMPROVEMENT PROJECT
FEDERAL AID PROJECT NO. AQC M455-010 (19307)
PROJECT SPECIAL PROVISIONS
Item Date Page
Revision of Section 403 - Hot Mix Asphalt (January 29, 2015) 48
Revision of Section 403 – Hot Mix Asphalt (Warranty) (January 29, 2015) 51
Revision of Section 412 Portland Cement Concrete Pavement (January 29, 2015) 59
Revision of Section 412 - Fast Track Portland Cement Concrete
Pavement (January 29, 2015) 60
Revision of Section 412 – Portland Cement Concrete Pavement
(Warranty) (January 29, 2015) 62
Revision of Section 604 – Inlet (Special) (January 29, 2015) 63
Revision of Section 605 – Subsurface Drains (Special) (January 29, 2015) 64
Revision of Section 608 – Sidewalks (January 29, 2015) 65
Revision of Section 608 - Concrete Curb Ramp (January 29, 2015) 67
Revision of Section 609 – Curb and Gutter (January 29, 2015) 69
Revision of Section 610 – Median Cover Material (January 29, 2015) 70
Revision of Section 619 – Water Service (January 29, 2015) 71
Revision of Section 619 – Water Lines (January 29, 2015) 72
Section 621 – Detour Pavement (January 29, 2015) 73
Revision of Section 623 – Plastic Pipe (Irrigation Sleeve) (January 29, 2015) 75
Revision of Section 625 - Construction Surveying (January 29, 2015) 76
Revision of Section 627 - Pavement Marking (January 29, 2015) 78
Revision of Section 630 – Construction Zone Traffic Control (January 29, 2015) 79
Revision of Section 630 – Impact Attenuator (Temporary) (January 29, 2015) 81
Revision of Section 630 – Temporary Traffic Signal (January 29, 2015) 83
Force Account Items (January 29, 2015) 84
Traffic Control Plan-General (January 29, 2015) 85
Utilities (January 29, 2015) 87
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NOTICE TO BIDDERS
Pursuant to subsections 102.04 and 102.05, it is recommended that bidders on this project review the work site and
plan details with an authorized City representative. Prospective bidders shall contact one of the following listed
authorized City representatives at least 12 hours in advance of the time they wish to go over the project.
Project Manager - Tim Kemp, Civil Engineer
Phone: (970) 416-2719
Cell Phone: (970) 219-9762
Project Engineer - Caleb Feaver, Civil Engineer
Cell Phone: (503) 477-0545
Project Inspector - Craig Farver, Senior Construction Inspector
Cell Phone: (970) 222-0854
The above referenced individuals are the only representatives of the City with authority to provide any information,
clarification, or interpretation regarding the plans, specifications, and any other contract documents or requirements.
Questions received from bidders along with City responses will be posted as an addendum online at the City of Fort
Collins Buy Speed Webpage, www.fcgov.com/eprocurement as they become available.
All questions shall be directed to the City contacts listed above no later than 7:00 A.M. one week prior to the bid
opening.
Questions and answers shall be used for reference only and shall not be considered part of the Contract.
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COMMENCEMENT AND COMPLETION OF WORK
The Contractor shall commence work under the Contract on or before the 10th day following the issuance of the
"Notice to Proceed." The Contractor shall complete all work in accordance with the Contract within one hundred-
eighty calendar days.
Section 108 of the Standard Specifications is hereby revised for this project as follows:
Stockpiling of materials before the beginning date is subject to the Engineer's approval. If such approval is given,
stockpiled material will be paid for in accordance with Sections l09 and 626.
Subsection 108.03 shall include the following:
The progress schedule shall consist of a Critical Path Method (CPM) schedule prepared using the Microsoft Project
software and submitted in hard and electronic formats.
The Contractor shall be responsible for planning, scheduling, coordinating, and reporting the progress of the work to
be completed by City of Fort Collins Forces. The City of Fort Collins Forces shall be considered as subcontractor for
the purposes of scheduling the work. The City will comment on the Contractors initial schedule submittal for
coordination of the completion of their work items.
Salient features to be shown on the Contractor's progress schedule are:
Mobilization
Construction Surveying (By City Forces)
Erosion Control
Construction Traffic Control
Removals and Adjustments
Roadway Earthwork
Drainage System
Curb, Gutter and Sidewalk
Asphalt Pavement
Concrete Pavement
Signing and Striping (By City Forces)
Traffic Signals and Controller Reset (By City Forces)
Utility Coordination and Relocations
Subsection 108.08 shall include the following:
Substantial Completion
o Substantial Completion is defined by:
Traffic is following the lane arrangements shown on the plans for finished roadway
All curb and gutter, pavement, joint sealing, median and island construction is complete
Traffic control devices and pavement markings are within their final positions.
Off-peak hour lane closures (9:30 AM to 11:30 AM and 1:30 PM to 3:30 PM) will be
permitted for minor work required to reach final completion.
o Substantial Completion will be completed within one hundred sixty-five (165) calendar days. In
accordance with the “Schedule of Liquidated Damages” in Section 108.09, Liquidated Damages per
Calendar Day will be $3,300.00 per day.
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COMMENCEMENT AND COMPLETION OF WORK
Final Completion
o Final Completion is defined by:
All sidewalks, final grading, , clean up, project record documents shall be turned over to the
owner, all punch list items completed, and all processing of change orders.
The work must be ready for final payment and acceptance.
Off-peak hour lane closures (9:30 AM to 11:30 AM and 1:30 PM to 3:30 PM) will be
permitted for minor work required to reach final completion.
o Final completion will be within fifteen (15) calendar days of substantial completion date. In
accordance with the “Schedule of Liquidated Damages” in Section 108.09, Liquidated Damages per
Calendar Day will be $3,300.00 per day.
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CONTRACT GOAL (COMBINED)
The Department has determined that Underutilized Disadvantaged Business Enterprises (UDBEs) will participate by
contracting for a part of the work of this Contract. The contract goal for participation in this Contract by certified
DBEs who have been determined to be underutilized has been established as follows:
UDBE* = 9 Percent
The percentage will be calculated from proposals received for this project according to the following formula:
**Dollar amount of work to be contracted to underutilized DBEs (UDBEs)
Percentage = 100 X ————————————————————————————————
Total dollar amount of the original Contract
* All DBEs will be considered to be UDBEs.
** Based on DBE contract unit prices rather than prime contract unit prices.
NOTE: Specific Good Faith Efforts required to meet the Contract Goal specified above are defined in the Standard
Special Provisions. In addition, the Transportation Commission has determined an overall 12.69 percent
annual goal for the participation of all DBEs.
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OJT CONTRACT GOAL
The Department has determined that on-the-job training shall be provided to trainees with the goal of developing full
journey workers in the types of trade or classification involved. The contract goal for on-the-job trainees working in
an approved training plan in this Contract has been established as follows:
Minimum number of total On-the-Job training hours required 640 hours
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REVISION OF SECTION 101
DEFINITIONS OF TERMS
Technical Specifications related to construction materials and methods for the work embraced under this Contract shall
consist of the “Colorado Department of Transportation, State of Colorado, Standard Specifications for Road and
Bridge Construction” dated 2011.
Certain terms utilized in the Specifications referred to in the paragraph above shall be interpreted to have different
meanings within the scope of this Contract. A summary of redefinitions follows:
Where reference is made in the plans and specifications to Owner, Department, Chief Engineer, Resident
Engineer, Project Engineer, Engineer, and Inspection and Testing Agency it is understood to mean the City of
Fort Collins, Colorado or the City’s representative.
Where reference is made in the plans and specifications to Surveyor it is understood to mean provided by the
City of Fort Collins with City of Fort Collins crews, but acting as a subcontractor to the project.
The sections shown on the following pages are revisions to the Technical Specifications for this project.
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REVISION OF SECTION 102
PROJECT PLANS AND OTHER DATA
Section 102 of the Standard Specifications is hereby revised for this project as follows:
Subsection 102.05 shall include the following:
A copy of the bid may be obtained as follows:
1. Download the Proposal/Bid from the BuySpeed Webpage, www.fcgov.com/eprocurement
2. Come by Purchasing at 215 North Mason St. 2nd floor, Fort Collins, and request a copy of the Bid
The following supporting information is available:
Pavement Design Report, Horsetooth Road and Timberline Road Intersection Improvements, report by
RockSol Consulting Group, Inc., report dated January 2, 2014
Upon receiving Concurrence to Award from Colorado Department of Transportation, the low responsive, responsible
bidder may obtain from the City of Fort Collins at no cost;
3 sets of 11x17 plans, 1 full size set, and 3 sets of special provisions
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REVISION OF SECTION 105
CONTROL OF WORK
Section 105 of the Standard Specifications is hereby revised for this project as follows:
Subsection 105.10 shall include:
Traffic Closures and Operations
The Contractor will submit a Traffic Control Plan as outlined in Section 630 of the project specifications. All
construction phasing and construction traffic control requests shall be coordinated with the City Traffic Department.
Through May 31, 2015 the Contractor will maintain current through lanes and turn lanes, as they exist today, for the
intersection. Between the dates of May 31, 2015 and August 15, 2015, the Contractor may request closures along
Horsetooth Road. The City has identified two proposed closure schedules below for informational puposes only:
Proposed Closure Schedule 1:
- The Contractor may request two, consecutive full closures of Horsetooth Road leaving a “T-intersection”
configuration. The west-leg and east-leg of Horsetooth may NOT be closed at the same time.
- Each closure will be allowed for a maximum of four weeks.
- During these closures, the Contractor will be required to maintain four travel lanes (two northbound and
two southbound) on Timberline Road. Left turns from southbound and northbound Timberline Road can
be eliminated during the east leg and west leg closures on Horsetooth Road.
- After August 15, 2015, at a minimum, the Contractor shall have the following movement open to traffic:
all right turn lanes, two through lanes in each direction of Timberline Road and Horsetooth Road, and at
least one left turn lane in all directions.
Proposed Closure Schedule 2:
- The Contractor may request a full closure of Horsetooth Road (both east and west legs concurrently)
with an eight week duration closure for the west leg and an overlapping four week duration closure for
the east leg.
- During this closure, the Contractor will be required to maintain four travel lanes (two northbound and
two southbound) on Timberline Road.
- If a full closure of Horsetooth (both east and west legs closed concurrently) is requested, for any
duration, the Contractor will be required to have the following items of work complete along Horsetooth
Road and open to full traffic by August 15, 2015:
• All required utility work
• All grading/earthwork outside of the new curbline
• All median work complete including underdrain, curb and gutter and grading
• All Item 403 Hot Mix Asphalt work except the top lift (top two inches)
• All Item 412 Concrete Pavement work within the roadway
• All Item 608 Concrete Sidewalk and Curb Ramp work
• All Item 609 Curb and Gutter work complete
- If a full closure of Horsetooth (both east and west legs closed concurrently) is requested, for any
duration, the Contractor will be required to have the following items of work complete along Timberline
Road by August 15, 2015:
• All required utility/irrigation work outside of the existing curbline
• All grading/earthwork outside of the existing curbline
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• All Item 609 Curb and Gutter work along the east and west side of the roadway
• All Item 608 Concrete Sidewalk and Curb Ramp work
• All Item 412 Concrete Pavement work outside of existing travel way for the southbound and
northbound lane
- After August 15, 2015, at a minimum, the Contractor shall have the following movement open to traffic:
all right turn lanes, two through lanes in each direction of Timberline Road and Horsetooth Road, and at
least one left turn lane in all directions.
- The contract time shall be reduced by 20 (twenty) calendar days if the Contractor uses Proposed Closure
Schedule 2.
The Contractor may request alternate closure schedules in writing for this time period (May 31, 2015 through August
15, 2015) in order to facilitate construction operations. All requests for closures must be made in writing atleast three
weeks in advance and approved by the City. Any request for closure must address the contract schedule and time and
detail a breakdown of work to be completed during the closure.
After August 15, 2015, at a minimum, the Contractor shall have the following movements open to traffic: all right turn
lanes, two through lanes in each direction of Timberline Road and Horsetooth Road, and at least one left turn lane in
all directions. Additional single lane closures and “lane drops” on both Horsetooth and Timberline Road will be
allowed at the approval of the City.
All construction phasing plans, traffic control plans, and requests for closures must be coordinated with the City of
Fort Collins Traffic Department and approved by the City.
Coordination with Property Owners and Tenants
The City of Fort Collins is committed to maintaining a positive working relationship with the businesses and residents
in the project area. Every effort will be made to maintain pedestrian and bicycle flow and to accommodate special
events and holidays for businesses, pedestrians, parking, and vehicle traffic. The Contractor shall be responsible to
coordinate all work activities with private property owners and tenants along the project corridor. Access shall be
maintained at all times. The Contractor shall be responsible for communicating accurate scheduling information to the
project team to assure proper notification of businesses and residents.
In particular, any proposed disruption or closure to an existing access must be communicated to the property Owners
and tenants with as much notice as possible. The minimum notice that will be allowed for any proposed access change
is 48 hours. The Contractor shall ensure that adequate alternate access is in place for vehicles and pedestrians and any
property-specific access needs are addressed prior to any change in existing access. The Contractor shall coordinate
his method of maintaining these accesses with the City of Fort Collins Traffic Operations Department.
Coordination with Traffic Engineer and Traffic Control Supervisor
The Contractor shall coordinate with the Owner’s Traffic Engineer for all traffic control activities. Requests for initial
Setup of the major project phases (road closures) must be made 3 weeks prior to projected set up. Allow up to 5 days
for advanced warning signs. Requests for flaggers must be made and updated at the weekly progress meetings for the
following week. Requests for minor traffic control set ups (lane drops, etc.) must be made 72
hours in advance of set up. Increased Traffic Control costs caused by delays assessed to the Contractor will be the
responsibility of the Contractor.
Delete subsection 105.12 and replace with the following:
The City, County, CDOT, and local utilities including but not limited to Xcel Energy and CenturyLink may contract
for and perform other or additional work on or near the Work of the project. When separate contracts are let within the
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limits of the project, each Contractor shall conduct the Work without interfering or hindering the progress or
completion of the work performed by other contractors. Contractors working on the same project shall cooperate with
each other as directed.
City forces will perform the following work as required by this project:
Permanent Pavement Marking
Permanent Signing
Traffic Signals/Fiber Optic Lines
Street Lights
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REVISION OF SECTION 105
CONTROL OF WORK
Traffic Coordination
1. The Contractor shall coordinate with the City Traffic Engineer for all traffic control activities.
This shall include, but not be limited to, closure of any City Streets, closure of any partial intersection
movements, lane reductions, and detours.
City Traffic Control Contact: Syl Mireles
Phone: (970)221-6815
Email: smireles@fcgov.com
2. The City will remove existing and install all new traffic signal equipment.
City Traffic Signal Contact: Britney Sorenson
Phone: 970-222-5533
Email: bsorenson@fcgov.com
3. The Contractor shall coordinate with the City Traffic Engineer to schedule the traffic signal work/fiber
optic line relocation in conjunction with other project activities taking into account time needed for order
and delivery of materials. The Contractor shall cooperate with the City Traffic Department in their removal
and installation operations so that progress is expedited, duplication of work is minimized, and impacts to
traffic are minimized.
4. The City will remove and install all permanent signing. The City will install all permanent
pavement markings.
City Signing and Striping Contact: Rich Brewbaker
Phone: 970-221-6792
Email: rbrewbaker@fcgov.com
5. The Contractor is responsible for removal of pavement markings and installation and maintenance of
temporary pavement markings necessary to control traffic during construction.
This work will not be paid separately, but shall be included in Construction Traffic Control, Lump
Sum. The Contractor shall coordinate with the City Traffic Engineer to schedule permanent signing and
striping work in conjunction with other project activities. Full-compliance pavement markings in
accordance with Section 627 shall be in place prior to opening the roadway to traffic. The Contractor shall
cooperate with the City Traffic Department in their removal and installation operations so that progress is
expedited, duplication of work is minimized, and impacts to traffic are minimized.
Street Light Coordination
1. City Light and Power Crews will remove and install all permanent street lighting and associated
electric utilities for the project.
City Survey Contact: Justin Fields
Phone: (970) 221-6700
Email: jfields@fcgov.com
2. The Contractor shall cooperate with the City Light and Power Department in their removal and installation
operations so that progress is expedited, duplication of work is minimized, and impacts to traffic are
minimized. Refer to Utility specification for additional information.
Each Contractor involved shall assume all liability, financial or otherwise, in connection with the Contract and shall
protect and save harmless the Owner from any and all damages or claims that may arise because of inconvenience,
delay , or loss because of the presence and operations of Contractors working within the limits of the same or
adjacent project.
Contractor is responsible to coordinate with private utilities. Any work to be performed by private utilities shall be
identified in Contractor’s schedule. Delays due to coordination issues will be the responsibility of the contractor.
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REVISION OF SECTION 105
CONTROL OF WORK
Subsection 105.13 shall include:
Surveying Coordination
A. The Owner will provide construction surveying for the project. City Survey Crews will perform the surveying
required.
B. The Contractor must submit a survey request form to the City Surveyors a minimum of 72 hours prior to needing
surveying.
C. If the requested surveying cannot be accomplished in the time frame requested by the Contractor, the survey
personnel shall notify the Contractor with the date on which the requested work will be completed.
D. Should a sudden change in the Contractor’s operations or schedule require the survey personnel to work overtime,
the Contractor shall pay the additional overtime expense.
E. 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 re-establishing a destroyed monument.
F. 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.
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REVISION OF SECTION 105
CLAIMS FOR CONTRACT ADJUSTMENT
Section 105 of the Standard Specifications is hereby revised for this project as follows:
Subsections 105.22, 105.23 and 105.24 shall be revised as follows:
The Colorado Department of Transportation will not participate in the resolution process for any claims filed by the
Contractor.
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REVISION OF SECTION 106
CONTROL OF MATERIAL
Section 106 of the Standard Specifications is hereby revised for this project as follows:
Subsection 106.01 shall include:
Substitutions and Product Options
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
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 were used date of installation and field
performance data.
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REVISION OF SECTION 106
CONTROL OF MATERIAL
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: Request sufficiently in advance to avoid delay in construction.
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: Substitutions and/or options will not be considered if they are
indicated or implied on shop drawings, or project data submittals, without formal request submitted in
accordance with this section.
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20
REVISION OF SECTION 106
CONTROL OF MATERIAL
Add subsection 106.14 as follows:
106.14 Quality Control For Warranted Hot Mix Asphalt and Concrete Pavements
Quality Control (QC) is the responsibility of the Contractor. The Contractor shall establish and maintain all
necessary inspection and materials testing procedures to assure the quality of work and the completed pavement.
The Contractor's QC Manager is responsible for compliance with the quality requirements specified in the
Contract and the Contractor's approved QC plan (QCP). The QC Manager shall not be the Contractor's
Superintendent.
The Contractor shall make provisions such that the Engineer can inspect QC work in progress, including sampling,
testing, plants, and the Contractor's testing facilities at any time.
A. Quality Control Plan (QCP). The Contractor shall submit a written QCP to the Engineer at least two weeks
prior to the beginning of work that is controlled by the QCP. The QCP shall list all inspection and materials
testing procedures utilized by the Contractor to ensure that the work conforms to contract requirements.
The QCP shall address the following:
1. The name, qualifications, duties, responsibilities and authorities of each person assigned a QC function.
The QC Manager shall be the person responsible for the process control sampling and testing. This person
must possess at least one of the following qualifications:
a. Registration as a Professional Engineer in the State of Colorado.
b. Level II A, B, and C certifications from the Laboratory Certification for Asphalt Technicians
(LABCAT).
Technician Qualifications. Technicians taking samples and performing tests must possess the following
qualifications:
a. Technicians taking samples and conducting compaction tests must have Level II A
certification from the Laboratory Certification for Asphalt Technicians (LABCAT).
b. Technicians conducting process control tests must have Level II B certification from the
Laboratory Certification for Asphalt Technicians (LABCAT).
c. Technicians determining asphalt mixture volumetrics and strength characteristics must have Level II C
certification from the Laboratory Certification for Asphalt Technicians (LABCAT).
2. A description of the responsibilities and authority, and a resume of experience, of the QC Manager.
3. Materials testing schedule, showing sampling and testing procedures and frequencies.
4. The standards to which the pavement is to be constructed, such as: in place density, asphalt content, voids criteria,
gradation, or all other criterion the Contractor intends to use to maintain the quality of the work.
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REVISION OF SECTION 106
CONTROL OF MATERIAL
5. Reporting procedures, including proposed reporting formats for materials sampling, testing, and inspection for all
phases of the work.
6. Names of testing and engineering firms to be used, if any, with licenses as appropriate.
7. Procedures for identifying, evaluating, and reporting non-conformance discovered during QC inspections and
testing.
8. Provisions for increased frequencies of inspection and testing when work does not conform to the standards set for
the construction.
B. Documentation. The Contractor shall maintain current records of quality control operations activities, and tests
performed including the work of vendors and subcontractors. These records shall be in the form shown in the
QCP and shall indicate, as a minimum, the subcontractor, if any, the number of personnel working, the weather
conditions encountered, delays encountered, locations corresponding to project stationing as shown on the
plans, and acknowledgment of deficiencies noted along with the corrective actions taken on deficiencies.
These records shall include factual evidence that required activities or tests have been performed, including but
not limited to the following:
1. Type and number of quality control activities and tests involved.
2. Results of quality control activities or tests.
3. Nature of defects, causes for rejection, etc.
4. Proposed remedial action.
5. Corrective actions taken.
Such records shall cover both conforming and defective or deficient features and shall include a statement
that work and materials incorporated in the project comply with this Contract. Copies of these records shall
be reviewed by the QC Manager and submitted to the Engineer prior to payment for the work.
C. Frequency. QC inspection and testing at all intervals of work shall be performed at the frequencies in the
accepted QCP.
D. Certification. Prior to acceptance of the project, the Contractor's QC Manager shall certify, in writing, that all
work and materials incorporated into the project meet the requirements of the Contract.
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22
REVISION OF SECTION 107
INSURANCE
Section 107.18 is hereby revised to read:
For this project all insurance certificates shall name the City of Fort Collins and the Colorado Department of
Transportation as an additionally insured party.
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23
REVISION OF SECTION 107
ENVIRONMENTAL CONTROLS
Section 107 of the Standard Specifications is hereby modified to include the following:
Environmental Controls
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.
A. Dust Control Application:
1. The Contractor shall execute work by methods to minimize raising dust from construction operations.
2. 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.
3. 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.
B. Preservation of Natural Features: Confine operations as much as possible. Exercise special care to maintain
natural surroundings in an undamaged condition. Within the work limits, barricade trees and natural features to be
preserved.
C. Housekeeping: 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. 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.
D. Disposal
1. 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., shall be borne by the Contractor.
2. Disposal of Garbage and Other Construction Materials: Provide sanitary containers/dumpsters and haul away
contents such that no overflow exists.
3. 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.
4. The Contractor is to immediately inform Engineer of any hazardous materials encountered during
construction. Dispose of waste materials legally at private or public facilities.
E. Burning: No burning of debris will be permitted.
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REVISION OF SECTION 107
ENVIRONMENTAL CONTROLS
F. Noise Control: 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.
Permission from Owner must be obtained prior to the operation of any machinery and/or vehicles between the
hours of 6 p.m. and 7 a.m.
G. Erosion and Sediment Control: It shall be the responsibility of the Contractor to prepare and obtain an approved
Erosion and Sediment Control Plan from the Owner.
H. Permits:
1. All work must be performed in accordance with all applicable regulatory permits.
2. It shall be the responsibility of the Owner to prepare a Stormwater Management Plan (SWMP), and submit
the SWMP to the Colorado Department of Public Health and Environment for review and approval. The
SWMP shall be transferred to the Contractor’s possession prior to beginning the Work. The Contractor shall
also provide inspection reports as required by the SWMP to the Owner upon completion of each inspection.
3. The Contractor shall be responsible for obtaining all other necessary permits associated with the Work.
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25
REVISION OF SECTION 107
LEGAL RELATIONS AND RESPONSIBILITY TO PUBLIC
Section 107 of the Standard Specifications is hereby revised for this project as follows:
Subsection 107.01 shall include the following:
All hauls traveling to or from Martin Marietta Materials, Inc. (MMM) located at 1800 North Taft Hill Road, Fort
Collins, Colorado shall enter and exit the site from the North to CR 54G.
No vehicle shall be driven or moved on any private or public highway, street, road or right of way if the vehicle is
transporting aggregate material or asphalt paving material unless the load is covered by a tarp or other cover in a
manner that prevents the load from escaping the vehicle and which minimizes fumes and emissions. Aggregate
material means any rock, clay, silts, gravel, limestone, dimension stone, marble and shale; except that aggregate
material does not include wet concrete or other materials not susceptible to blowing. Asphalt paving material means
any material formed by mixing aggregate and asphalt cement and includes hot mix asphalt, warm mix asphalt, and
bituminous concrete.
Subsection 107.25 shall include the following:
This work consists of the proper treatment and disposal of ground water collected from dewatering operations during
excavation activities.
The Contractor shall obtain a construction dewatering permit from the Colorado Department of Public Health and
Environment (CDPHE). A completed application must be submitted to CDPHE at least 30 days prior to dewatering
operations. Dewatering operations shall be conducted in a manner that avoids pollution and erosion. Water from
dewatering operations shall not be directly discharged into any state waters including wetlands, irrigation ditches,
canals, or storm sewers, unless allowed by a permit. Discharge into sanitary sewers will not be allowed unless written
permission is obtained from the owner or controlling authority and a copy of this approval is submitted to the
Engineer. Unless prohibited by law or otherwise specified in the Contract, the water from dewatering operations shall
be contained in basins for dissipation by infiltration or evaporation, shall be hauled away from the project for disposal
in accordance with applicable laws and regulations, or shall be land applied to approved non-wetland vegetated areas.
Depending upon the quality of the water, land application of water to vegetated areas may require a written
concurrence or permit from CDPHE and from the owner of the facility. Based on guidelines and criteria from CDPHE,
the Contractor shall determine the quality of the water, obtain applicable concurrences or permits, and furnish copies
of the concurrences or permits obtained to the Engineer.
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26
REVISION OF SECTION 108
PROSECUTION AND PROGRESS
Section 108 of the Standard Specifications is hereby revised as follows:
Subsection 108.03 shall include the following:
Project Meetings
A. Pre-Construction Conference: A Pre-Construction Conference will be held after Notice of Award and before the
Notice to Proceed, the date, time and location will be determined after Notice of Award.
The conference shall be attended by:
1. Contractor and Contractor’s Superintendent
2. Contractor’s Subcontractors (including the city provided Surveyor)
3. Engineer
4. Owner
5. Utility Companies
6. Others as requested by the Contractor, Owner, or Engineer.
Prior to the Pre-Construction Conference, the Contractor will submit a detailed Traffic Control Plan and
Construction Phasing Schedule. Unless previously submitted to the Owner, the Contractor shall bring to the
conference a tentative schedule of the construction project, include in the schedule shop drawings and other
submittals. Any submittals requiring long lead times and therefore must be expedited shall be submitted at the pre-
construction conference, or as soon thereafter as possible.
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 Dewatering Permit, Erosion and Sediment Control Plan, 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
B. Construction Progress Meetings for the Federal Aid Project No. AQC M455-010 (19307): Progress meetings will
be conducted weekly or at some other frequency, if approved by the Engineer. 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, and 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.
The Contractor will prepare a “two week look ahead” schedule to facilitate coordination of work items.
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27
REVISION OF SECTION 108
PROSECUTION AND PROGRESS
Modifications to Time of Completion in the Approved Schedule
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)
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
accepted) 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 calendar days for which work was delayed during each month.
At the end of each month, if the number of work 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, and 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.
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REVISION OF SECTION 108
PROSECUTION AND PROGRESS
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.
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.
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REVISION OF SECTION 108
LIMITATION OF OPERATIONS
Section 108 of the Standard Specifications is hereby revised as follows:
Subsection 108.05 shall include the following:
Work Hours: Work hours are 7 AM to 6 PM, Monday through Friday. Extended hours and weekend work are
anticipated and will be permitted with written approval from the Project Manager. Night time work shall be permitted
with written approval from Project Manager. Work shall be permitted on holidays with written approval from the
Project Manager. Work requests beyond working hours must be submitted to the Project Manager a minimum of (5)
working days prior to the request date.
Night and weekend work will be allowed with 5 days prior notice to the Project Manager. All costs associated with
nighttime work will be incidental to the work.
Demolition work will not be permitted before 7 AM or after 6 PM.
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REVISION OF SECTION 201
CLEARING AND GRUBBING
Section 201 of the Standard Specifications is hereby revised for this project as follows:
Subsection 201.02 shall include the following:
Ralph Zentz, Assistant City Forester (970-221-6302), shall be responsible for identifying the removal of tree branches,
stumps, shrubs and/or other plant materials beyond those trees identified in the removal plans for removal and/or
transplant. Coordinate with the Assistant City Forester to have tree branches, stumps, shrubs, and other plant materials
marked for removal.
Clearing and grubbing shall include the removal of trees less than six (6) inches in diameter, bushes and shrubs as
identified by the Engineer or the Assistant City Forester to be either removed or trimmed. All removed debris shall
become the property of the Contractor and shall be removed from the project site, not buried on-site.
Subsection 201.04 shall include the following:
Pay Item Pay Unit
Clearing and Grubbing Lump Sum
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REVISION OF SECTION 202
REMOVAL OF INLET
Section 202 of the Standard Specifications is hereby revised for this project as follows:
Subsection 202.01 shall include the following:
This work includes removal and disposal of existing concrete inlet within the project limits as shown on the plans or at
locations directed by the Engineer.
In Subsection 202.02 delete the seventh paragraph and replace with the following:
The inlet shall be removed in a manner that minimizes disturbance to the surrounding area. All removed inlet
materials shall become the property of the Contractor and shall be disposed of outside the project site legally.
Subsection 202.11 shall include the following:
The removal of the existing concrete inlet will be measured by the number of inlets removed, and accepted.
Location of sawcutting shall be as directed by the Engineer. Sawcutting, excavation and backfilling will not be paid
separately and shall be included in the cost for removal of inlet.
Subsection 202.12 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Removal of Inlet Each
Work shall include all material, equipment, labor, and disposal of materials to complete the work.
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REVISION OF SECTION 202
REMOVAL OF PIPE
Section 202 of the Standard Specifications is hereby revised for this project as follows:
Subsection 202.01 shall include the following:
This work includes removal and disposal of existing pipe within the project limits as shown on the plans or at locations
directed by the Engineer.
In Subsection 202.02 delete the seventh paragraph and replace with the following:
The removed pipe shall become the property of the Contractor and shall be disposed of outside the project site legally.
Subsection 202.11 shall include the following:
The removal of the existing pipe will be measured by the linear foot of pipe removed, and accepted.
Excavation and backfilling will not be paid separately and shall be included in the cost for removal of pipe.
Subsection 202.12 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Removal of Pipe Linear Foot
Work shall include all material, equipment, labor, and disposal of materials to complete the work.
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REVISION OF SECTION 202
REMOVAL OF SIDEWALK
Section 202 of the Standard Specifications is hereby revised for this project as follows:
Subsection 202.01 shall include the following:
This work includes removal and disposal of existing sidewalk within the project limits as shown on the plans or at
locations directed by the Engineer. This item includes the removal of the existing concrete drain and sidewalk drain as
shown on the plans.
In subsection 202.02 delete the seventh paragraph and replace with the following:
The existing sidewalk (assumed 4-6 inches thick) shall be removed in a manner that minimizes contamination of the
removed sidewalk with underlying material. The removed sidewalk shall become the property of the Contractor and
shall be disposed of outside the project site legally. The Contractor may dispose the removed sidewalk at the City of
Fort Collins Recycling Center at 1380 Hoffman Mill Road. It is the responsibility of the Contractor to be familiar with
acceptable disposal specifications of the City Recycling Center.
Subsection 202.11 shall include the following:
The removal of the existing sidewalk will be measured by the square yard of sidewalk removed to the required depth,
and accepted.
Sawcutting will not be paid separately and shall be included in the cost for removal of sidewalk.
Subsection 202.12 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Removal of Sidewalk Square Yard
Work shall include all material, equipment, labor, and disposal of materials, including hauling, to complete the work.
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REVISION OF SECTION 202
REMOVAL OF CURB AND GUTTER AND MEDIAN COVER
Section 202 of the Standard Specifications is hereby revised for this project as follows:
Subsection 202.01 shall include the following:
This work includes removal and disposal of existing curb and gutter and median cover within the project limits as
shown on the plans or at locations directed by the Engineer.
In subsection 202.02 delete the seventh paragraph and replace with the following:
The removed curb and gutter shall become the property of the Contractor and shall be disposed of outside the project
site legally. The Contractor may dispose the removed curb and median cover at the City of Fort Collins Recycling
Center at 1380 Hoffman Mill Road. It is the responsibility of the Contractor to be familiar with acceptable disposal
specifications of the City Recycling Center.
Subsection 202.11 shall include the following:
The removal of the existing curb and gutter will be measured by the linear foot of curb and gutter removed, and
accepted. The removal of existing median cover will be measured by the square yard removed and accepted.
Sawcutting will not be paid separately and shall be included in the cost for removal of curb and median cover.
Subsection 202.12 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Removal of Curb and Gutter Linear Foot
Removal of Median Cover Square Yard
Work shall include all material, equipment, labor, and disposal of materials, including hauling, to complete the work.
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REVISION OF SECTION 202
REMOVAL OF CONCRETE PAVEMENT
Section 202 of the Standard Specifications is hereby revised for this project as follows:
Subsection 202.01 shall include the following:
This work includes removal and disposal of existing concrete pavement within the project limits as shown on the plans
or at locations directed by the Engineer.
In Subsection 202.02 delete the seventh paragraph and replace with the following:
The existing concrete pavement (assumed 9 inches thick) shall be removed in a manner that minimizes contamination
of the removed pavement with underlying material. The removed pavement shall become the property of the
Contractor and shall be disposed of outside the project site legally. The Contractor may dispose the removed
pavement at the City of Fort Collins Recycling Center at 1380 Hoffman Mill Road. It is the responsibility of the
Contractor to be familiar with acceptable disposal specifications of the City Recycling Center.
Subsection 202.11 shall include the following:
The removal of the existing concrete pavement will be measured by the square yard of pavement removed to the
required depth, and accepted.
Location of sawcutting shall be as directed by the Engineer. Sawcutting will not be paid separately and shall be
included in the cost for removal of concrete pavement.
Subsection 202.12 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Removal of Concrete Pavement Square Yard
Work shall include all material, equipment, labor, and disposal of materials, including hauling, to complete the work.
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REVISION OF SECTION 202
REMOVAL OF ASPHALT MAT
Section 202 of the Standard Specifications is hereby revised for this project as follows:
Subsection 202.01 shall include the following:
This work includes removal and disposal of existing asphalt mat within the project limits as shown on the plans or at
locations directed by the Engineer.
In Subsection 202.02 delete the seventh paragraph and replace with the following:
The existing asphalt mat (assumed 10 inches thick) shall be removed in a manner that minimizes contamination of the
removed asphalt with underlying material. The removed mat shall become the property of the City and be disposed of
by any one or more of the following described methods:
1. Place material in bottom of fills as approved by the Engineer.
2. Haul offsite to City of Fort Collins Recycling Center at:
1380 Hoffman Mill Road
Fort Collins, Colorado
(970)482-1249
It is the responsibility of the Contractor to be familiar with acceptable disposal specifications of the City Recycling
Center.
Subsection 202.09 shall include the following:
Removal of Asphalt Mat will be full depth asphalt removal.
Asphalt planing will be variable depth milling from 0 to 3 inches in depth.
Subsection 202.11 shall include the following:
The removal of the existing asphalt mat will be measured by the square yard of mat removed, and accepted.
Location of sawcutting shall be as directed by the Engineer. Sawcutting will not be paid separately and shall be
included in the cost for removal of asphalt mat.
Subsection 202.12 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Removal of Asphalt Mat Square Yard
Removal of Asphalt Mat (Planing) Square Yard
Work shall include all material, equipment, labor, and disposal of materials, including hauling, to complete the work.
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REVISION OF SECTION 207
TOPSOIL (SPECIAL)
Section 207 of the Standard Specifications is hereby revised for this project as follows:
Subsection 207.01 shall be revised to include the following:
The Contractor will have the option to either purchase amended topsoil that meets the following requirements or mix
the existing material on-site to meet the requirements. If mixed on site, this work shall consist of using the onsite
stockpiled topsoil and mixing with the required imported soil amending material to produce the standard 75/25 topsoil
mix material. This material shall be placed in the designated landscape medians and parkway areas indicated on the
plans.
Subsection 207.02 shall include the following:
Topsoil for this project shall consist of loose friable loam amended with organic enhancements.
A. Amended Topsoil Onsite shall have the following characteristics:
Shall have a range of three to four percent organic matter as determined by the ignition of moisture free sample
dried to determine loss in accordance with current methods of the Association of Official Agriculture Chemists.
Shall have a pH between 6.5 to 8.0.
Sodium Absorption Rate (SAR) and Electrical Conductivity (EC) readings are not to exceed three mmhos/cm.
Particle Sizes: Topsoil shall be loam to sandy loam.
Must be weed free at the time of spreading operations. This can be achieved by following subsection 217.03
B. Soil Amendment:
Onsite amended topsoil - Material brought to the site for amendment process shall meet the amendments at the
following rate:
3 cubic yards per 1,000 square feet of organic amendment
The organic amendment shall include the following:
An organic product containing a mixture of composted cow or sheep manure and wood residue that has been
aerobically and naturally processed in such a manner as to maintain a consistent temperature of 60 degrees
Celsius (140 degrees Fahrenheit) or greater for a period of time that is long enough to accomplish the following
specifications:
1. The windrows of composted organic amendment (cow or sheep manure) have to be composted for 70 to 90
days. Certification must be provided to prove the product has gone through this process.
2. Eradicate harmful pathogens, including coliform bacteria.
3. Create a carbon to nitrogen ratio of no less than 15/1 to 25/1
4. Contain no solid particle greater than ½ inch in diameter.
5. Have a non-offensive smell similar to fresh turned soil.
6. Contain no significant level of dirt or soil and contain a maximum of 30 percent composted wood residue (pine
or aspen wood).
The ph after composting shall be between 5.0 and 7.5 with an organic matter content of no less than 30 percent.
The Contractor shall submit a 2 lb. Sample of the product four weeks before its use on the project site revision for
the Engineer’s approval. A Certificate of Compliance shall be provided to the Engineer to verify the organic
matter content, pH and carbon matter to nitrogen ratio.
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38
REVISION OF SECTION 207
TOPSOIL (SPECIAL)
The Contractor shall submit two samples of topsoil to a soils laboratory for analysis. The cost of the test shall be
at the Contractor’s expense. The results will be submitted to the Engineer for review at least 60 days prior to
placement. Based on the results, the Engineer can request soil amendments appropriate to have topsoil conform to
these specifications at no cost to the project. The organic amendment shall be an organic product containing a
mixture of composted cow or sheep manure and wood residue that has been aerobically and naturally processed in
such a manner as to maintain a consistent temperature of 140 degrees. Fahrenheit or greater for a period of time of
70 to 90 days, and be approved by the Engineer.
Subsection 207.03 shall include the following:
All areas planted behind the curb (parkway area) shall have the top 8 inches of soil tilled. Upon completion of
tilling, the Contractor shall disk soil so as to break up all dirt clods to a size of two inches or smaller.
Topsoil placement shall occur immediately after disking is complete. All areas shall be seeded or temporarily
stabilized within seven calendar days after topsoil placement is completed.
Spread topsoil over all areas to be planted with shrubs, to a depth of three inches. Begin placement after all rough
grading, tilling, and disking operations are complete.
Ten days before notice to proceed, Contractor shall submit a weed mitigation plan t the Engineer for approval.
This plan shall include a graphic time line showing milestone and completion dates of herbicide treatment, topsoil
stockpiling, topsoil spreading and all seeding and planting times.
Delete Subsection 207.04 and replace with the following:
Topsoil salvaged from the roadway placed in stockpile shall paid by the cubic yard per plan quantity as Stockpile
Topsoil.
Topsoil special shall be measured in place by measuring random depths of topsoil, and computing the volume by
multiplying the area times the average depth. Topsoil special includes the amended material secured from a source
outside the right-of-way, mixing the stockpiled topsoil material with the amended material to meet the requirements
for an approved 75/25 mix, and placing in the designated areas.
Subsection 207.05 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Topsoil (Special) Cubic Yard
Tilling and disking operations will not be paid for separately, but shall be included in the work. Organic amendment
will not be paid for separately but shall also be included in the work.
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39
REVISION OF SECTION 208
EROSION CONTROL
Section 208 of the Standard Specifications is hereby revised for this project as follows:
Section 208.01 of the Standard Specifications is hereby revised for this project to include the following:
Any loss of time or materials related to erosion shall be the sole responsibility of the Contractor. Any damage to
surrounding properties or facilities (either on site or off site) related to erosion caused by construction of this project,
will be the sole responsibility of the Contractor.
Subsection 208.05 shall include the following:
It shall be the responsibility of the Contractor to ensure that all roadways near the project are kept clean of construction
debris.
Section 208.12 shall include the following:
All erosion control measures identified in the Contract and as directed by the Project Manager will not be measured
and paid for separately but will be the plan quantities. The unit cost price bid will be full compensation for all work
required to complete the item.
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40
REVISION OF SECTION 210
RESET WATER METER
Section 210 of the Standard Specifications is hereby revised for this project as follows:
Subsection 210.02 shall include the following:
Reseet Water Meter consists of removing the existing water meter pit, curb stop, and other necessary water
improvements and resetting to a new location as shown on the plans or as directed by the City of Fort Collins project
representative. Contractor shall plan to replace existing water service improvements with new materials meeting the
requirements of the current City of Fort Collins Water Utility Standard Construction Specifications. Contractor shall
coordinate with the City’s Meter Shop on relocation work. Cavities left by the removal of the structure shall be filled
to the level of the surrounding ground with suitable material and shall be compacted in accordance with subsection
203.06. The Contractor shall cooperate and coordinate with the property owner and the City of Fort Collins Water
Utility Department when shutting off water to minimize downtime to customers.
Subsection 210.12 shall include the following:
Reset Water Meter will be measured by the actual number reset and shall include all work and materials necessary to
remove items from their existing location and reset them at the new location and to install the new water meter.
Subsection 210.13 shall include the following:
Pay Item Pay Unit
Reset Water Meter Each
All work necessary to reset the water meter, curb stop, and other water service improvements, including materials,
labor, backfill, sawcutting of existing improvements, shall be incidental to the line item.
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41
REVISION OF SECTION 210
RESET FIRE HYDRANT
Section 210 of the Standard Specifications is hereby revised for this project as follows:
Subsection 210.02 shall include the following:
Reset Fire Hydrant consists of removing the existing fire hydrant assembly and installing a new fire hydrant assembly
at the location shown on the plans or as directed by the City of Fort Collins project representative. Contractor shall
plan to replace existing hydrant materials with new materials meeting the requirements of the current City of Fort
Collins Water Utility Standard Construction Specifications. Work includes removing the watervalve and installing a
blind flange at the existing tee. Work includes installing a new 6” stainless steel taping saddle to the existing 8” pvc
main, installing a 6” pvc (C-900) to the new hydrant location, installing a new hydrant assembly, and backfilling with
flowable fill concrete.
The Contractor shall cooperate and coordinate with the property owner and the City of Fort Collins Water Utility
Department when shutting off water to minimize downtime to customers.
Subsection 210.12 shall include the following:
Reset Fire Hydrant will be measured by the actual number reset and shall include all work and materials necessary to
remove items from their existing location and reset them at the new location and to install the new water meter.
Subsection 210.13 shall include the following:
Pay Item Pay Unit
Reset Fire Hydrant Each
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42
REVISION OF SECTION 210
MODIFY MANHOLE
Section 210 of the Standard Specifications is hereby revised for this project as follows:
Subsection 210.02 shall include the following:
Modify Manhole shall include all work necessary to remove the existing pipe connection and connect the proposed
pipe.
Subsection 210.12 shall include the following:
Modify Manhole will be measured by the actual number modified and shall include all work and materials necessary to
modify the manhole.
Subsection 210.13 shall include the following:
Pay Item Pay Unit
Modify Manhole Each
Structure excavation and structure backfill required for "Modify Manhole" will not be measured and paid for
separately but shall be included in the work. Reinforcing steel, structural concrete, manhole rings and covers, as well
as all other materials required to complete the item shall be included in the work.
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43
REVISION OF SECTION 210
MODIFY STRUCTURE
Section 210 of the Standard Specifications is hereby revised for this project as follows:
Subsection 210.02 shall include the following:
Modify Structure consists of modifying the manhole and lid for the existing vault as shown on the plans according to
the requirements of the current Fort Collins Light & Power Construction Specifications.
Subsection 210.12 shall include the following:
Modify Structure will be measured by the actual number modified and shall include all work and materials necessary
to modify the vault.
Subsection 210.13 shall include the following:
Pay Item Pay Unit
Modify Structure Each
Reinforcing steel, structural concrete, manhole rings and covers, as well as all other materials required to complete the
item shall be included in the work.
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44
REVISION OF SECTION 212
TREE RETENTION AND PROTECTION
Section 212 of the Standard Specifications is hereby revised for this project as follows:
Subsection 212.01 shall include the following:
Tree Retention and protection includes general protection and pruning of existing trees and plants that are affected by
execution of the Work, whether temporary or permanent construction. The following definitions apply:
1) Caliper: Diameter of a trunk measured by a diameter tape or the average of the smallest and largest
diameters at 6 inches above the ground for trees up to, and including, 4-inch size; and 12 inches above the
ground for trees larger than 4-inch size.
2) Plant-Protection Zone: Area surrounding individual trees, groups of trees, shrubs, or other vegetation
to be protected during construction, and indicated on Drawings.
3) Tree-Protection Zone: Area surrounding individual trees or groups of trees to be protected during
construction, and defined by a circle concentric with each tree with a radius 1.5 times the diameter of the drip
line unless otherwise indicated.
4) Vegetation: Trees, shrubs, groundcovers, grass, and other plants.
Subsection 212.02 shall include the following:
(d) Protection-Zone Fencing: Fencing fixed in position and meeting the following requirements.
Previously used materials may be used when approved by Engineer. Protection-Zone fencing will
be considered incidental to the “Tree Retention and Protection” line item and will not be paid for
separately.
1. Plastic Protection-Zone Fencing: Plastic construction fencing constructed of high-density extruded
and stretched polyethylene fabric with 2-inch maximum opening in pattern and weighing a
minimum of 0.4 lb/ft.; remaining flexible from minus 60 to plus 200 deg F; inert to most chemicals
and acids; minimum tensile yield strength of 2000 psi and ultimate tensile strength of 2680 psi;
secured with plastic bands or galvanized-steel or stainless- steel wire ties; and supported by
tubular or T-shape galvanized-steel posts spaced not more than 8 feet apart.
a. Height: 5 feet
b. Color: High-visibility orange, nonfading.
Add Subsection 212.061 immediately following Subsection 212.06
212.61 Tree Retention and Protection
A. SUBMITTALS
1) Samples for Verification: For each type of the following:
a. Protection-Zone Fencing: Assembled Samples of manufacturer's standard size made from
full-size components.
2) Existing Conditions: Documentation of existing trees and plantings indicated to remain, which establishes
preconstruction conditions that might be misconstrued as damage caused by construction activities.
a. Use sufficiently detailed photographs or videotape.
b. Include plans and notations to indicate specific wounds and damage conditions of each
tree or other plants designated to remain.
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45
REVISION OF SECTION 212
TREE RETENTION AND PROTECTION
B. QUALITY ASSURANCE
1) Preinstallation Conference: Conduct conference at Project site.
a. Review methods and procedures related to temporary tree and plant protection including,
but not limited to, the following:
i. Construction schedule. Verify availability of materials, personnel, and equipment
needed to make progress and avoid delays.
ii. Enforcing requirements for protection zones.
iii. Field quality control.
C. PROJECT CONDITIONS
1) The following practices are prohibited within protection zones:
a. Storage of construction materials, debris, or excavated material.
b. Parking vehicles or equipment.
c. Foot traffic.
d. Erection of sheds or structures.
e. Impoundment of water.
f. Excavation or other digging unless otherwise indicated.
g. Attachment of signs to or wrapping materials around trees or plants unless otherwise indicated.
2) Do not direct vehicle or equipment exhaust toward protection zones.
3) Prohibit heat sources, flames, ignition sources, and smoking within or near protection zones and
organic mulch.
D. PREPARATION
Locate and clearly identify trees, shrubs, and other vegetation to remain or to be relocated. Tie a 1- inch blue-
vinyl tape around each tree trunk at 54 inches above the ground.
Protect tree root systems from damage caused by runoff or spillage of noxious materials while mixing,
placing, or storing construction materials. Protect root systems from ponding, eroding, or excessive wetting
caused by dewatering operations.
Within the drip line of any protected existing tree, there shall be no cut or fill over a four-inch depth unless a
qualified arborist or forester has evaluated and approved the disturbance.
Prior and during construction, barriers shall be erected around all protected existing trees with such barriers to
be of orange fencing a minimum of (5) feet in height, secured with metal T-Posts, no closer than six (6) feet
from the trunk or at the drip line, whichever is greater. There shall be no storage or movement of
equipment, material, debris or fill within the fenced tree protection zone. Modification of protective fence
locations to accommodate construction shall be approved by the City Forester prior to moving or erecting a
protective fence. Where the drip line of trees touch or overlap, place fence around groups of trees.
During construction there shall be no cleaning of equipment or materials or the storage and disposal of waste
material such as paints, oils, solvents, asphalt, concrete, motor oil or any other material harmful to the life of a
tree within the drip line of any protected tree or group of trees.
No damaging attachments, wires, signs or permits may be fastened to any protected tree.
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46
REVISION OF SECTION 212
TREE RETENTION AND PROTECTION
The installation of utilities, irrigation lines or any underground fixture requiring excavation deeper than six
(6) inches shall be accomplished by boring under the root system of protected existing trees at a minimum depth
of twenty-four (24) inches. The auger distance is established from the face of the tree (outer bark) and is
scaled from the tree diameter at breast height as described in the tree protection chart of the Fort Collins Land
use Code Section 3.2.1.
Construction shall be performed in a manner to not damage any existing tree. Clearance pruning of any tree on
site shall only be by a Fort Collins Licensed Arborist under the direction of the City Forester.
Equipment access/drives shall be positioned to minimize travel over the root system of any existing tree.
Equipment drive locations over the root system of any significant tree shall be approved by the City Forester
with requirements to protect the compaction of exposed soil.
Prior to construction the contractor shall meet the City Forester on site to verify protected existing trees and
the application of tree protection specifications.
The Contractor shall wrap protected trees with concrete blankets or equivalent treatment whenever directed by
the owner’s representative.
E. TREE- AND PLANT-PROTECTION ZONES
Protection-Zone Fencing: Install protection-zone fencing along edges of protection zones before materials or
equipment are brought on the site and construction operations begin in a manner that will prevent people from
easily entering protected. Construct fencing so as not to obstruct safe passage or visibility at vehicle
intersections where fencing is located adjacent to pedestrian walkways or in close proximity to street
intersections, drives, or other vehicular circulation.
Maintain protection zones free of weeds and trash.
Repair or replace trees, shrubs, and other vegetation indicated to remain or be relocated that are damaged by
construction operations, in a manner approved by Architect.
Maintain protection-zone fencing and signage in good condition as acceptable to Architect and remove
when construction operations are complete and equipment has been removed from the site.
1) Do not remove protection-zone fencing, even temporarily, to allow deliveries or equipment access
through the protection zone.
F. EXCAVATION
General: Excavate at edge of protection zones and for trenches indicated within protection zones according to
requirements in Section 200 Earth Work.
Trenching near Trees: Where utility trenches are required within protection zones, hand excavate under or
around tree roots or tunnel under the roots by drilling, auger boring, or pipe jacking. Do not cut main lateral tree
roots or taproots; cut only smaller roots that interfere with installation of utilities. Cut roots as required for root
pruning.
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47
REVISION OF SECTION 212
TREE RETENTION AND PROTECTION
Redirect roots in backfill areas where possible. If encountering large, main lateral roots, expose roots beyond
excavation limits as required to bend and redirect them without breaking. If encountered immediately adjacent
to location of new construction and redirection is not practical, cut roots approximately 3 inches back from new
construction and as required for root pruning.
Do not allow exposed roots to dry out before placing permanent backfill. Provide temporary earth cover or
pack with peat moss and wrap with burlap. Water and maintain in a moist condition. Temporarily support
and protect roots from damage until they are permanently relocated and covered with soil.
G. ROOT PRUNING
Prune roots that are affected by temporary and permanent construction. Pruning roots 2” in diameter or
greater must be reviewed by City Forester prior to pruning. Prune roots as shown on Drawings and as
follows:
1) Cut roots manually by digging a trench and cutting exposed roots with sharp pruning instruments; do
not break, tear, chop, or slant the cuts. Do not use a backhoe or other equipment that rips, tears, or
pulls roots.
2) Temporarily support and protect roots from damage until they are permanently redirected and
covered with soil.
3) Cover exposed roots with burlap and water regularly.
4) Backfill as soon as possible according to requirements in Section 203 Excavation and Embankment.
Root Pruning at Edge of Protection Zone: Prune roots 12 inches outside of the protection zone, by cleanly
cutting all roots impacted to the depth of the required excavation.
H. CROWN PRUNING
Prune all existing trees retained on City property by cleaning and thinning the canopy. Prune branches
that are affected by temporary and permanent construction. Prune branches as shown on the Drawings and as
follows:
1) Pruning Standards: Prune trees according to the City of Fort Collins Tree Management Standards
I. REGRADING
Lowering Grade: Where new finish grade is indicated below existing grade around trees, slope grade beyond
the protection zone. Maintain existing grades within the protection zone.
Raising Grade: Where new finish grade is indicated above existing grade around trees, slope grade beyond
the protection zone. Maintain existing grades within the protection zone.
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48
REVISION OF SECTION 212
TREE RETENTION AND PROTECTION
J. REPAIR AND REPLACEMENT
General: Repair or replace trees, shrubs, and other vegetation indicated to remain or be relocated that are
damaged by construction operations, in a manner approved by Architect/Owner’s Rep.
1) Submit details of proposed root cutting and tree and shrub repairs.
2) Treat damaged trunks, limbs, and roots according to an ISA certified arborist's written instructions.
3) Perform repairs within 24 hours.
4) Replace vegetation that cannot be repaired and restored to full-growth status, as determined by
Landscape Architect/Owner’s Rep.
Protected trees that are damaged during construction will be appraised by a qualified arborist, and the amount
of damage appraised will be billed to the Contractor.
Trees: Remove and replace trees indicated to remain that are more than 25 percent dead or in an unhealthy
condition before the end of the corrections period or are damaged during construction operations that
Landscape Architect/Owner’s Rep determines are incapable of restoring to normal growth pattern.
1) Provide new trees of same size and species as those being replaced for each tree that measures 6 inches
or smaller in caliper size.
K. DISPOSAL OF SURPLUS AND WASTE MATERIALS
Disposal: Remove excess excavated material, displaced trees, trash and debris, and legally dispose of them
off Owner's property.
Subsection 212.07 shall include the following:
Tree retention and protection will not be measured, but will be paid for on a lump sum basis. The lump sum price
bid will be full compensation for all work required to complete the item, including installation and maintenance of
protection-zone fencing.
Subsection 212.08 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Tree Retention and Protection Lump Sum
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49
REVISION OF SECTION 304
AGGREGATE BASE COURSE
Section 304 of the Standard Specifications is hereby revised for this project as follows:
Subsection 304.02 shall include the following:
Materials for the base course shall be Aggregate Base Course (Class 6) as shown in Subsection 703.03.
Subsection 304.04 shall include the following:
Any excavation and fill required to place the aggregate base course and the preparation of the subgrade will not be
measured and paid for separately, but shall be included in the work. Any excess excavated material not used on site
shall become the property of the Contractor and shall be disposed of at the City of Fort Collins Recycling Center at
Hoffman Mill Road. Materials not accepted at the City Recycling Center shall be disposed of outside the project site.
Subsection 304.08 shall include the following:
Payment will be made under:
Pay Item Pay Unit
Aggregate Base Course (Class 6) Ton
Work shall include all material, equipment, labor, and disposal of any excess excavated materials, including hauling, to
complete the work.
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50
REVISION OF SECTION 403
HOT MIX ASPHALT
Section 403 of the Standard Specifications is hereby revised for this project as follows:
Subsection 403.02 shall include the following:
The design mix for hot mix asphalt shall conform to the following:
TABLE 403-1
Property Test
Method
Value For Grading
SX (100) S (75)
Air Voids, percent at:
N (design) CPL 5115
3.5 – 4.5
3.5 – 4.5
Lab Compaction (Revolutions):
N (design) CPL 5115
100
75
Stability, minimum CPL 5106 28 28
Minimum % of the aggregate
retained on the 4.75 mm (No. 4)
sieve having at least 2 mechanically
induced fractured faces
CP 45 60 60
Accelerated Moisture Susceptibility
Tensile Strength Ratio (Lottman),
minimum
CPL 5109
Method B
80
80
Minimum Dry Split Tensile
Strength, kPa (psi)
CPL 5109
Method B 205 (30) 205 (30)
Grade of Asphalt Cement, Top
Layer PG 64-22
Grade of Asphalt Cement, Layers
below Top PG 64-22
Voids in the Mineral Aggregate
(VMA) % minimum CP 48
See Table
403-2
See Table
403-2
Voids Filled with Asphalt (VFA), % AI MS-2 65-80 65-80
Dust to Asphalt Ratio
Fine Gradation
Coarse Gradation
CP 50
0.6 - 1.2
0.8 - 1.6
0.6 - 1.2
0.8 - 1.6
Note: AI MS-2 = Asphalt Institute Manual Series 2
Note: The current version of CPL 5115 is available from the Region Materials Engineer.
Note: Mixes with gradations having less than 40% passing the 4.75 mm (No. 4) sieve shall be
approached with caution because of constructability problems.
Note: Gradations for mixes with a nominal maximum aggregate size of one-inch or larger are
51
REVISION OF SECTION 403
HOT MIX ASPHALT
All mix designs shall be run with a gyratory compaction angle of 1.25 degrees and properties must satisfy Table 403-1.
Form 43 will establish construction targets for Asphalt Cement and all mix properties at Air Voids up to 1.0 percent
below the mix design optimum
Table 403-2
Minimum Voids in the Mineral Aggregate (VMA)
Nominal
Maximum Size*,
mm (inches)
***Design Air Voids **
3.5% 4.0% 4.5% 5.0%
37.5 (1½) 11.6 11.7 11.8
N/A
25.0 (1) 12.6 12.7 12.8
19.0 (¾) 13.6 13.7 13.8
12.5 (½) 14.6 14.7 14.8
9.5 (⅜) 15.6 15.7 15.8
4.75 (No. 4) 16.6 16.7 16.8 16.9
* The Nominal Maximum Size is defined as one sieve
larger than the first sieve to retain more than 10%.
** Interpolate specified VMA values for design air voids
between those listed.
*** Extrapolate specified VMA values for production air
voids beyond those listed.
The Contractor shall prepare a quality control plan outlining the steps taken to minimize segregation of HMA. This
plan shall be submitted to the Engineer and approved prior to beginning the paving operations. When the Engineer
determines that segregation is unacceptable, the paving shall stop and the cause of segregation shall be corrected
before paving operations will be allowed to resume.
The hot mix asphalt top layer shall not contain any reclaimed or recycled asphalt pavement.
Hot mix asphalt for patching shall conform to the gradation requirements for Hot Mix Asphalt (Grading S) (100).
To prevent stripping, a minimum of 1 percent hydrated lime by weight of the combined aggregate shall be added to the
aggregate for all hot mix asphalt.
Acceptance samples shall be taken at the location specified in Method B of CP-41.
Subsection 403.03 shall include the following:
The Contractor shall construct the work such that all roadway pavement placed prior to the time paving operations end
for the year, shall be completed to the full thickness required by the plans. The Contractor's Progress Schedule shall
show the methods to be used to comply with this requirement.
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52
REVISION OF SECTION 403
HOT MIX ASPHALT
Delete subsection 403.05 and replace with the following:
403.05 The accepted quantities of hot mix asphalt will be paid for in accordance with subsection 401.22, at the contract
unit price per ton for the bituminous mixture.
Payment will be made under:
Pay Item Pay Unit
Hot Mix Asphalt (Patching) (Asphalt) Ton
Hot Mix Asphalt (Grading S) (75) (PG 64-22) Ton
Hot Mix Asphalt (Grading SX) (100) (PG 64-22) Ton
Aggregate, asphalt recycling agent, additives, hydrated lime, and all other work necessary to complete each hot mix
asphalt item will not be paid for separately, but shall be included in the unit price bid. When the pay item includes the
PG binder grade, the asphalt cement will not be measured and paid for separately, but shall be included in the work.
When the pay item does not include the PG binder grade, asphalt cement will be measured and paid for in accordance
with Section 411. Asphalt cement used in Hot Mix Asphalt (Patching) will not be measured and paid for separately,
but shall be included in the work.
Excavation, preparation, and tack coat of areas to be patched will not be measured and paid for separately, but shall be
included in the work.
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53
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
Section 403 of the Standard Specifications is hereby revised for this project to include the following:
DESCRIPTION
This work consists of the construction of warranted hot mix asphalt in accordance with these specifications, and in
conformity with the lines and grades shown on the plans or established.
MATERIALS AND CONSTRUCTION REQUIREMENTS
The provisions of Section 401 do not apply to warranted hot mix asphalt except for the following: Longitudinal
joints shall conform to the requirements of subsection 401.16. Roadway smoothness shall conform to the
requirements of subsection 401.20. Paving limitations shall conform to the requirements of subsection 401.07.
The Contractor shall be responsible for the hot mix asphalt mix design, production, placement, performance, process
and thickness control testing, and warranty work for a period of 2 years from the date of pavement acceptance.
The warranted hot mix asphalt shall be a mixture of aggregate, filler or additives if used, bituminous material,
hydrated lime, and reclaimed material if used. A minimum of one percent hydrated lime by weight of the
combined aggregate shall be added to the aggregate for all warranted hot mix asphalt.
The Contractor shall establish the materials mix design (MMD) for the hot mix asphalt. The MMD consists of an
aggregate gradation based on percentages of the material passing various sieve sizes, a percentage by weight of
bituminous material to be added to the aggregate, and a temperature for the mixture at discharge from the mixing
plant. The Contractor shall select all materials to be used in the mixture including the asphalt cement. Transverse
cracking shall not be included in the performance warranty if the asphalt cement meets or exceeds the low
temperature required for Superpave performance grade PG 64-28 conforming to subsection 702.01.
The minimum thickness placed shall be as shown on the plans.
Two weeks before starting paving, the Contractor shall provide the Engineer the MMD, the method of developing
the MMD, all MMD testing, a list of materials, and all thickness testing methods.
The hot mix asphalt shall be warranted for 2 years against the types of distress listed in (d) below.
(a) Warranty and Warranty Bond. By submission of its bid in response to this specification, the Contractor
warrants that all of the hot mix asphalt placed on the project shall be free of defective materials and
workmanship for a period of 2 years from the date of pavement acceptance as defined in the Revision of
Section Acceptance.
The Contractor further warrants that it will ensure proper and prompt performance and completion of warranty
work in accordance with this specification. Warranty work shall be performed when any defect occurs in the
hot mix asphalt materials or workmanship within that 2 year period and warranty work is required or needed
on that pavement. Prompt performance and completion of warranty work includes payment for all labor
performed and for all equipment and materials used.
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54
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
All such warranty work shall be solely at the Contractor’s expense up to $150,000. The City may elect to have
additional work performed and will be responsible for payment of actual expenses incurred by the Contractor.
Additional work shall be authorized in writing by the Engineer. All documentation of actual costs incurred in
the performance of warranty work shall be made available for audit by the City.
The Contractor shall provide a warranty performance bond ("warranty bond") to guarantee the full performance
of the warranty work described in this specification. The warranty bond shall be in the amount of $150,000.
The warranty bond shall be a single term 2 year (plus an additional nine months in certain circumstances)
warranty bond that will be in effect for the entire warranty period. The warranty bond shall be in effect upon
pavement acceptance, and it shall remain in effect for the total of 2 years from that date. The Contractor shall
provide a 2 year warranty bond that fully complies with this specification to the Department at the time of
execution of the Contract.
The need for warranty work, and the performance of that warranty work, shall be determined in accordance
with (d) below. The Contractor will be released from further warranty work at the end of the warranty period
or upon completion of any delay warranty work, as described above, whichever is later, provided all required
warranty work has been satisfactorily completed.
(b) Pavement Evaluation Team (PET). The PET shall have the final decision authority for all warranty work. The
PET shall consist of three subject matter experts not affiliated with the project. One member will be a City of
Fort Collins staff person, the second member will represent the asphalt paving industry, and the third will be
mutually agreed upon by the other two members. Each member of the PET shall have a minimum 15 years
experience in one or a combination of the following disciplines: pavement management, asphalt pavement
design, asphalt pavement construction, maintenance management or asphalt pavement maintenance. The City
will cover expenses associated with performing the duties of the PET for the City member and the mutually
agreed upon third party. The Contractor shall cover expenses associated with performing the duties of the PET
for the asphalt paving industry member
Members will be replaced as necessary based upon the criteria above.
The City representative on the PET shall be responsible for scheduling distress surveys, preparing the reports,
and notifying the Engineer when warranty work is required.
(c) Warranty Work. During the warranty period the warranty work shall be performed at no cost to the City and
shall be based on the results of the pavement distress survey. Warranty work to be performed and materials to
be used shall be in accordance with the remedial actions and other requirements in (d). The Contractor may
propose alternative actions for warranty work to the Engineer who will submit the proposal to the PET. All
warranty work to repair distresses shall be done in accordance with the project specifications and plans and
current City of Fort Collins and CDOT standards and coordinated with the Engineer. Innovative materials and
techniques may be considered. The PET will render a final decision by majority vote.
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55
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
During the warranty period, the Contractor may monitor the pavement in question using nondestructive
procedures. All proposed remedial actions shall be coordinated with the Engineer. Coring, milling or other
destructive procedures shall not be performed by the Contractor without prior written consent of the Engineer.
The Contractor is not responsible for damages that are a result of coring, milling or other destructive
procedures conducted by the City, utility companies or other entities not under the control of the Contractor.
When notified by the PET that warranty work is required, the Engineer will notify the Contractor and Surety, in
writing. If the Contractor or Surety fails to respond in writing within fifteen days after receiving written notice
from the Engineer, the City may make repairs or contract to have the repairs made and the Contractor and
surety shall be responsible for the total cost of these repairs including lane rental fees.
At least 30 days before the expiration of the warranty, and at any other time during the warranty period as
deemed necessary by the Engineer, the PET shall conduct a pavement distress survey. If the Engineer is
notified by the PET that warranty work is required in accordance with the distress indicators, the Engineer will
notify the Contractor and surety in writing. If the Contractor or the Surety fails to respond in writing within 15
days after receiving written notice from the Engineer, the City will complete the repairs or contract to have the
repairs completed and the Contractor and Surety shall be responsible for the total cost of these repairs including
the lane rental fees. If it is necessary to delay performance of the final warranty work due to weather
limitations or other reasons in the public interest, the Contractor and City shall agree to the extent of work to be
performed. Any additional distress resulting from the delay will be the responsibility of the Department.
Warranty work that requires a resurfacing of the pavement shall be performed only when weather conditions
are in accordance with subsection 401.07.
The Contractor shall maintain traffic at all times as detailed in the Traffic Control Plan. Warranty work shall be
performed during the times of day and days of week specified for the original contract work.
(d) Pavement Distress Indicators, Thresholds and Remedial Action. Pavement distress indicators shown below
shall be used as the basis for determining the distress types to be considered for repair under the warranty and
as the basis for determining the methods for measuring distresses.
The pavement distress surveys are conducted by dividing the roadway into nominal one-mile sections. A one-
tenth mile segment in each mile will be evaluated for pavement distress. The segment evaluated shall be from 0.3
to 0.4 miles from the start of the section. In addition, in each section, a random one-tenth mile segment will be
surveyed. The random one-tenth mile segments will be determined by the PET each time a survey is conducted.
The PET will conduct intermediate surveys if requested in writing by the Engineer. The PET will notify the
Engineer in writing of the survey results within 15 days. The Engineer will immediately notify the Contractor
in writing. Traffic control for conducting the surveys will be the responsibility of the Department.
If any survey requires remedial action and the Contractor does not dispute the survey results, the Contractor
shall remedy the distress. If the survey requires remedial action and the Contractor disputes the survey results,
the Contractor shall notify the Engineer in writing within 15 days of receiving notice. The notification shall
describe the contractual and legal basis for the disagreement with the survey results. The Engineer will transmit
the Contractor's notification to the PET which will render a final decision and notify the Engineer in writing
within 30 days of the Contractor's notification.
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56
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
The PET shall determine the remedial action to be performed in all segments in the project where the threshold
level is met or exceeded. If areas outside the survey segments are suspected of meeting or exceeding a threshold
level, the PET will divide the entire project into 0.1 mile segments and conduct the distress survey in any, or all,
segments to see if a threshold level has been met or exceeded. Unless otherwise directed by the Engineer
remedial action shall be performed in the same calendar year as the survey that indicated the threshold level is
met or exceeded. Remedial action shall be applied to each entire segment in which the threshold level is met or
exceeded unless otherwise noted under remedial action. When the remedial action required includes an overlay,
the action shall also be performed on the hot mix asphalt shoulders and adjacent lanes.
If remedial action necessitates a corrective action to the pavement markings, adjacent lanes or roadway
shoulders, then such corrective action to the pavement markings, adjacent lanes and shoulders shall be
performed at the expense of the Contractor.
When remedial action requires the removal of pavement, the pavement shall be replaced with a mix approved
by the PET. The mix shall be placed according to the Contractor's QCP. Pavement shall be removed by
cutting neat lines vertically for the full depth of the affected layer unless otherwise specified. Removal areas
shall be rectangular, and the sides and bottoms shall be thoroughly coated with an approved tack coat prior to
pavement replacement.
If, anytime during the warranty period, 30 percent or more of the project segments require or have received
remedial action, then the entire project shall receive a remedial action as determined by the PET.
The Contractor will not be held responsible for distresses which are caused by factors beyond the control of the
Contractor. A finding that the distress is due to factors outside the control of the Contractor shall be based on
evidence submitted by the Contractor to the Engineer. The PET will make the final determination.
Distress types to be warranted, the threshold levels requiring remedial action, and the remedial
action to be performed by the Contractor shall be according to the following pavement distress
indicators:
1. Permanent Deformation - Rutting and Shoving. Rutting is longitudinal surface depression in the
wheel path. Shoving is longitudinal displacement of a localized area of the pavement surface
caused by traffic pushing against the pavement. Rutting shall be measured at 50 foot intervals
using a 6 foot straight edge, and taking several measurements transversely across the pavement to
determine the maximum rut depth. Rut depths shall be rounded to the nearest
0.10 inch.
Severity
Quantity
Preferred Actions
(Actual action to be approved by PET)
Low
> 0.3 to 0.5 inch
Micromill or diamond grind to remove ruts, chip
seal, microsurface or remove and replace.
Moderate
> 0.5 to 1 inch
Micromill or diamond grind to remove ruts then
microsurface or remove and replace.
High
> 1 inch
Evaluate the cause and then remove and replace.
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57
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
The Permanent Deformation - Correction of rutting and shoving will not be required when the
accumulated design lane Equivalent Single Axle Loads (ESAL's) exceed "w" at time intervals
shown below:
Table A: 2 year Warranty Rutting Rate of Loading
Table
Time after Pavement Acceptance
(sampling intervals)
Maximum Accumulated ESAL's
(where D = 3 year projection design lane
ESAL's) "w"
6 months 0.25 x D
12 months 0.50 x D
18 months 0.75 x D
24 months D
If the rutting is suspected to be caused by the base or subgrade, coring (or cross sectional
sampling) will be conducted by the Department to determine the cause of the rutting. The
Contractor shall have the option to obtain cores and cross-section samples at his own expense,
including repair of the sampled areas, and traffic control.
2. Pot Holes. Pot holes are bowl shaped depressions of various sizes in the pavement surface
caused by loss of pavement mix.
Severity
Quantity Preferred Actions
(Actual action to be approved by PET)
Low < 1 inch deep and > 0.2 feet
2
Seal coat or crack / joint seal
Moderate 1 inch to 2 in. deep and > 0.2 feet
2
Patch
High > 2 inch deep and > 0.2 feet
2
Remove and replace to 2 feet beyond
apparent distress.
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58
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
3. Longitudinal Joint Separation. Longitudinal joint separation is loss of the pavement surface or
depressions within 18 inches of a longitudinal joint.
Severity
Quantity
(Mean
Width)
Preferred Actions
(Actual action to be approved by PET)
Low
≤ 0.25 inch Seal cracks with hot poured joint and crack
sealant materials that meet the requirements of
ASTM D 3405.
Moderate
> 0.25 inch and ≤ 0.75 inch Seal cracks with hot poured joint and crack
sealant materials which meet the requirments
of ASTM D 3405, ASTM D 5078 or ASTM D
5078 with 22% scrap rubber
High
> 0.75 in. Remove and replace a minimum of 6 inches
beyond distress laterally and 2 feet beyond
distress longitudinally. In no instance shall
resulting joints be placed in the wheelpath.
4. Raveling and Weathering. Raveling and weathering are the wearing away of the pavement surface
caused by the dislodging of aggregate particles (raveling) and the loss of asphalt binder
(weathering). Affected area shall be repaired to 24” beyond apparent distress. Preferred actions
include slurry seal, chip seal, Novachip, ultra-thin overlay or remove and replace. The actual action
shall be approved by the PET.
5. Bleeding. Bleeding is a film of bituminous material on the pavement surface which creates a
shiny, glass-like, reflective surface.
Severity
Quantity Preferred Actions
(Actual action to be approved by PET)
Low
Coloring of surface visible Observe more frequently
Moderate
Asphalt free on surface Microsurface or SMA overlay
High
Asphalt free on surface
and tire tracks
Remove and replace full width of lane or
shoulder to two feet longitudinally beyond
affected area.
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59
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
6. Delamination of Pavement Layers. Delamination of pavement is the separation of one layer from the
layer below it.
Remedial action for delamination: affected area shall be removed and replaced to one foot beyond the
apparent distress.
7. Transverse Cracking. Transverse cracks are cracks relatively perpendicular to the pavement centerline. The
highest severity level present for at least 10% of the total length of the crack shall be assigned. Random
cracks with transverse cracks are cracks that occur randomly and are within two feet of the transverse crack.
Since the top mat of asphalt pavement will be placed over Portland Cement Concrete Pavement, transverse
cracks determined to be caused by existing joints in the concrete pavement will not be included as part of
the warranty. Spalling with transverse cracks is the cracking, breaking or chipping of the pavement surface
within two feet of the transverse crack.
Severity
Quantity Preferred Action
(actual action to be approved by
PET)
Low
< 0.25 inch wide Seal cracks with hot poured joint
and crack sealant materials that
meet the requirements of ASTM D
3405.
Moderate
< 0.75 inch wide
< 0.25 inch wide with spalling or
random cracking
Seal cracks with hot poured joint
and crack sealant materials which
meet the requirments of ASTM D
3405, ASTM D 5078 or
ASTM D 5078 with 22% scrap
rubber.
High
≥ 0.75 in. wide
< 0.75 in. wide with spalling and
random cracking
Remove and replace full width of
lane or shoulder to one foot
longitudinally beyond the
apparent distress.
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60
REVISION OF SECTION 403
HOT MIX ASPHALT (WARRANTY)
(e) Elective or Preventive Action. Elective or Preventive action shall be a Contractor or Surety option, at the
Contractor or Surety expense, subject to the approval of the Engineer. The Contractor or Surety shall notify the
Engineer in writing if it proposes to perform elective or preventive work. Elective or Preventive work shall be
done during times set forth in the Contract for original contract work. Lane rental fees will be assessed.
(f) Emergency Work. For warranted distresses, the Engineer may request, in writing, immediate action of the
Contractor and Surety for the safety of the traveling public. The Contractor or Surety shall have the first option
to perform the emergency work. If the Contractor or Surety cannot perform the emergency work within 24
hours, the Engineer may have the emergency work done by other forces and seek reimbursement from the
Contractor or Surety accordingly. Emergency work performed by other forces shall not alter the requirements,
responsibilities, or obligations of the warranty.
(g) Traffic Control. Construction Traffic control for warranty work shall be performed in accordance with Section
630 at the Contractor's expense.
(h) Process Control Testing: The Contractor shall perform process control testing in accordance with the
Revision of Section 106, Quality Control for Warranted Hot mix asphalt.
Cost of the two year warranty will be incidental to the placement of all hot mix asphalt pavement.
Addendum 1 - 8098 Horsetooth & Timberline Intersection Improvemetns Page 63 of 97
61
REVISION OF SECTION 412
PORTLAND CEMENT CONCRETE PAVEMENT
Section 412 of the Standard Specifications is hereby revised for this project as follows:
Subsection 412.03 shall include the following:
Concrete (9 Inch): Concrete shall be Class “P” concrete. The unit price shall include the entire cost of the
installation. Price will include saw cutting, furnishing and installing dowel bars and keyways; supplying, forming,
placing, finishing, and edging the concrete surface; curring and sealing materials, joint materials and sealers.
Concrete Pavement (9 Inch) (Special): Concrete crosswalks shall be Class “P” concrete. The concrete shall be
integrally colored with the required lbs. of Davis Color “Tile Red” per sack of cement. The texture will be
Brickform Texture Mats FM-3500 Cal Weave, 24”x24” (or approved equal). The surface of the concrete
crosswalk shall be sealed and protected from drying with Davis W-1000 Clear Cure and Seal (or approved equal).
The unit price shall include the entire cost of the installation. Price will include saw cutting, furnishing and
installing dowel bars and keyways; supplying, forming, placing, finishing, stamping and edging the concrete
surface; curring and sealing materials, joint materials and sealers; texturing equipment.
Contractor shall provide up to three mock-up slabs of each colored concrete paving. Finished products that do not
match the approved test slab shall be removed and replaced by the Contractor at no cost to the Owner.
Subsection 412.03 shall include the following:
Driveway approaches shall be class P concrete in accordance with Section 601 and shall be installed in accordance
with details 706 and 707 as shown on the plans.
Subsection 412.18 shall include the following:
The Contractor shall cut the transverse and longitudinal joints to the width and depth required. The cut shall be made
with a power drive saw equipped with diamond blades. The residue from sawing shall be removed from the pavement
by the Contractor. The material shall be removed at the time of the sawing operation using equipment designed for
that purpose. Any damage to the concrete pavement such as spalling or fracturing shall be repaired by the Contractor
as directed by the Engineer at no cost to the project. The joints shall be immediately flushed with water to remove any
sawing residue.
Cleaning, repairing, and proper curing of any spills, fractures, breaks, or voids in the concrete surface of the joints shall
be accomplished prior to installing the backer rod material or joint sealant.
The backer rod shall be placed in such a manner that the grade for the proper depth of the seal material is maintained.
Subsection 412.24(a) shall include the following:
Pay Item Pay Unit
Concrete Pavement (9 Inch) Square Yard
Concrete Pavement (9 Inch) (Special) Square Yard
The price of all pay items shall be full compensation for furnishing and placing all materials including test slabs, and
demolition of test slabs, excavation, concrete, color additives, stamp mold, forms, joint materials, reinforcement,
tooling and finishing.
Addendum 1 - 8098 Horsetooth & Timberline Intersection Improvemetns Page 64 of 97
62
REVISION OF SECTION 412
FAST TRACK PORTLAND CEMENT CONCRETE PAVEMENT
Section 412 of the Standard Specifications is hereby revised for this project as follows:
Subsection 412.03 shall include the following:
Where Concrete Pavement (Fast Track) is specified by the Engineer, the concrete shall be Concrete Class E and shall
conform to the requirements for Concrete Class E as described in Section 601. Substitution of other classes of
concrete will not be allowed. Use of Fast Track Concrete Pavement without the direction of the Engineer shall be paid
as 412-00900 Concrete Pavement (9 Inch).
Subsection 412.04 shall include the following:
For Concrete Class E, the Contractor shall develop maturity relationships in accordance with ASTM C 1074 with the
following additions or modifications:
1. The cylinders used to establish the compressive strength vs. maturity relationship shall be cast and cured in the
field in conditions similar to the project.
2. These cylinders shall be tested in pairs at times which yield compressive strengths three sets of which are at or
below 17 Mpa (2500 psi) and one of which is above 17 Mpa (2500 psi).
3. Testing to determine datum temperature or activation energy will not be required.
4. A test slab shall be cast at the same time and location as the cylinders. The test slab shall have a length and
width of 2 m x 2 m (6 feet x 6 feet) and a thickness equal to the pavement design thickness. The maturity of
the test slab, when used in the compressive strength vs. maturity relationship from the cylinders, shall indicate
that a compressive strength of 17 Mpa (2500 psi) is achieved in the required time. Slab maturity will be
determined with two probes located in the slab approximately 300 mm and 600 mm (1 and 2 feet) from the
edge. The test slab shall be covered with a blanket similar to the one to be used on the pavement.
The development of the maturity relationship and maturity determination of the test slab is part of the trial mix and
shall thus be documented in the Concrete Mix Design Report.
The Contractor shall provide a multi-channel maturity meter and all necessary wire and connectors. The Contractor
shall be responsible for the placement and maintenance of the maturity meter and wire. Placement shall be as directed
by the Engineer.
Calcium chloride will not be allowed.
Admixtures which conform to AASHTO M 194 Type F (water reducing, high range) and Type G (water reducing,
high range and retarding) will be permitted for Concrete Class E.
Subsection 412.18 shall include the following:
The transverse and untied longitudinal joints of Concrete Pavement (Fast Track) shall be cleaned and sealed with
preformed compression joint seals prior to opening of the pavement to traffic.
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63
REVISION OF SECTION 412
FAST TRACK PORTLAND CEMENT CONCRETE PAVEMENT
Subsection 412.23 shall include the following:
The quantities for Concrete Pavement (9 Inch) (Fast Track) will be paid only when required by the Project Engineer in
critical locations. All other uses of high early concrete in order to meet paving and/or schedule requirements will be
considered incidental to the work covered in pay item “Concrete Pavement (9 Inch)”.
Subsection 412.24(a) shall include the following:
Pay Item Pay Unit
Concrete Pavement (9 Inch) (Fast Track) Square Yard
Furnishing, calibrating and use of the maturity meter, wire, and other appurtenances including the molding, curing and
breaking of cylinders for calibration, and placement of the slab will not be measured and paid for separately, but shall
be included in the work.
Addendum 1 - 8098 Horsetooth & Timberline Intersection Improvemetns Page 66 of 97
64
REVISION OF SECTION 412
PORTLAND CEMENT CONCRETE PAVEMENT (WARRANTY)
Section 412 of the Standard Specifications is hereby revised for this project as follows: Subsection
412.16 shall include the following:
A two year warranty period will be apparent for all Portland Cement Concrete Pavement placed as part of the
construction project. The warranty period will begin the date the project has reached final acceptance. All
improvements which do not meet the project’s contract specifications, be it through substandard materials or
workmanship, shall be removed and replaced at the Contractor’s expense.
The project will be inspected by City representatives on a quarterly basis throughout the duration of the two year
warranty period. The City will develop a list of improvements which will need to be removed and replaced and
deliver this to the Contractor. The City and Contractor will meet to finalize the list of improvements to be
addressed along with determining the timing of the work to be completed. The following failures will result in
removal of the Portland Cement Concrete Pavement, adjustment of the underlying material (if necessary), and the
replacement with material meeting the project’s contract specifications:
Pavement slabs containing one or more cracks through the full depth of the slab that separate the slab into
two or more parts
Pavement slabs containing honeycombed areas
Pavement slabs containing an extreme void as defined above
Pavement slabs containing more than one void greater in depth than half the pavement thickness
Pavement slabs containing a cumulative surface area of moderate and severe voids greater than one
percent of the slab’s total area
Pavement slabs containing 20 or more severe voids
Joints that are spalled over 50% their length
Concrete improvements constructed which do not meet specified grades in the plans. If water pools
greater than 0.5” after a storm event, concrete improvements will need to be removed to
nearest grades that meet the contract’s intent and replaced, enabling proper drainage
All pavement slabs to be removed shall be removed in a manner that minimizes contamination of the removed
pavement with underlying material. The removals shall be performed in accordance with the removal specifications
for Portland Cement Concrete Pavement as are defined in the contract. The damaged pavement slab shall be cut in a
straight, true line with a vertical face and shall be cut with a concrete saw. If the damage to the slab does not extend
past the mid point of the slab, half the panel can be removed and replaced. If the damage extends past the mid point
of the slab, the pavement shall be removed to the nearest joint. The removed concrete pavement shall become the
property of the Contractor and disposed of outside the project site legally. All concrete pavement removed shall be
replaced with concrete meeting the specifications for either Class P concrete, and shall match the thickness and
finish of the existing pavement. For repairs on arterial and collector streets, concrete placed shall meet 3000 psi
strength within 48 hours of placement. A minimum compressive strength of 3000 psi or .80 Fc, whichever is
greater, and a minimum flexural compressive strength of 450 psi are required prior to opening the roadway to traffic.
Prior to removing and replacing the damaged slab, a concrete mix design shall be submitted and approved.
The Contractor shall provide all traffic control necessary to reroute traffic during the removal, replacement, and
curing for all concrete pavement not meeting the project’s contract specifications. All traffic control plans shall be
submitted to the City’s Traffic Operations Department for approval. The Contractor shall notify the City’s project
manager at least 48 hours prior to beginning any removals. If any striping or stenciling is necessary after the work
has been completed, the City will perform the striping. All costs incurred for the striping will be the responsibility
of the Contractor.
Cost of the two year warranty will be incidental to the placement of all concrete pavement.
Addendum 1 - 8098 Horsetooth & Timberline Intersection Improvemetns Page 67 of 97
65
REVISION OF SECTION 604
INLET (SPECIAL)
Section 604 of the Standard Specifications is hereby revised to include the following:
Subsection 604.01 shall include the following:
This work consists of construction of a standard City of Fort Collins Inlet (either a curb opening inlet or a grate inlet)
with Vertical Curb and Gutter with the addition of a Snout (or approved equal).
Subsection 604.02 shall include the following:
All concrete products and construction shall be sulfate-resistant products in accordance with the sulfate exposure class
shown on the General Notes sheet of the plans.
All metals shall meet the requirements of subsection 712.06.
Subsection 604.04 shall be retitled as follows:
604.04 Manholes, Inlets, Inlet (Special) and Meter Vaults
Subsection 604.04 shall include the following:
(f) Inlet (Special)
Where inlets are placed in or adjacent to existing curbs or gutters, the Contractor shall carefully remove sections of
present curb, gutter, or curb and gutter. All damage to sections to remain in place shall be repaired at the
Contractor’s expense. The top portion of inlets shall be constructed concurrently with the adjacent curb and gutter
to insure proper alignment of grades unless otherwise permitted in writing. The inlet shall have a Snout (or
approved other) water quality structure installed as part of the cost of the inlet.
Subsection 604.06 shall include the following:
Inlet (Special) will be measured by the unit.
Structure excavation, structure backfill, filter material, concrete, reinforcing steel, inlet grates and frames, other
miscellaneous metals, connecting devices, Snout appurtenances and all other labor, equipment, materials and
incidentals required to construct the inlet (special) will not be measured and paid for separately, but shall be included
in the work.
Subsection 604.07 shall include the following:
Pay Item Pay Unit
Inlet (Special) Each
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66
REVISION OF SECTION 605
SUBSURFACE DRAINS (SPECIAL)
Section 605 of the Standard Specifications is hereby revised for this project as follows:
Subsection 605.01 shall include the following:
This work consists of furnishing all materials and workmanship necessary to construct the underdrain, including
fittings and underdrain cleanouts per the details shown in the Construction Plans. The underdrain cleanouts (on 100’
center to center spacing) consist of a 4-Inch riser pipe, tee and screw-on cap. The underdrains will daylight as shown
in the construction plans.
Pay Item Pay Unit
4 Inch Perforated Pipe Underdrain (Special) Linear Foot
4 Inch Pipe Underdrain (Special) Linear Foot
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67
REVISION OF SECTION 608
SIDEWALKS
Section 608 of the Standard Specifications is hereby revised for this project as follows:
Subsection 608.03 shall include the following:
Finished products that do not match the approved test slab shall be removed and replaced by the Contractor at no cost
to the Owner.
Record date, location, and quantity of pour, as well as air temperature at time of pour.
Subsection 608.03(b) shall include the following:
For Surfaces Exposed to View: Form faces must be free from raised grain, tears, worn edges, patches, dents, or other
defects which would impair texture of the concrete surfaces. Minimize number of seams in form material, and arrange
seams in an orderly fashion.
To minimize potential cracking, no section of concrete shall have any angle less than 90 degrees.
After stripping of the forms, if any concrete is found to be not formed as shown on the drawings, is out of alignment of
level, or shows a defective surface, it will be considered as not conforming with the intent of these standards and
specifications, and shall be removed and replaced at the Contractor’s expense, unless the Engineer gives permission to
patch the defective area.
Delete subsection 608.03(d) and replace with the following:
Sidewalk: Concrete sidewalks shall be medium broom finished.
All outside edges of the slab and all joints shall be edged with a 1/4-inch radius edging tool.
Thoroughly wash the surface with water prior to acceptance.
Surface Planeness for Concrete Paving. Unless otherwise specified, produce slabs with the following tolerance.
Finishes shall be true planes within 1/4-inch in 10 feet, as determined by a 10 foot straight edge placed anywhere on
the slab in any direction.
Subsection 608.03(e) shall include the following:
A. Expansion joints/construction joints/ for concrete paving:
1. Expansion joints to be spaced no greater than every 300 feet.
2. Extend joint filler the full depth of the slab. Hold back filler 1/2-inch from top of slab.
3. Joint sealant or caulk shall match color of concrete; caulking shall not extend above level of pavement.
Addendum 1 - 8098 Horsetooth & Timberline Intersection Improvemetns Page 70 of 97
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REVISION OF SECTION 608
SIDEWALKS
B. Score Joints.
1. Construct sawcut and tooled score joints as detailed on the plans.
2. Score joints shall be ¼ of paving depth.
3. Tooled joints to have a 1/4-inch radius and shall not incorporate a trowelled edge except where indicated
on the drawings. Score joints into plastic concrete during finishing operations.
Subsection 608.06 shall include the following:
Pay Item Pay Unit
Concrete Sidewalk (6 Inch) SY
Concrete Sidewalk (Special) SY
The price all pay items shall be full compensation for furnishing and placing all materials including excavation,
concrete, forms, joint materials, reinforcement, tooling and finishing.
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REVISION OF SECTION 608
CONCRETE CURB RAMP
Section 608 of the Standard Specifications is hereby revised for this project as follows:
Subsection 608.01 shall include the following:
This work includes the installation of detectable warnings on concrete curb ramps at the locations shown on the plans
and in accordance with the plans.
Subsection 608.02 shall include the following:
Detectable warnings on curb ramps shall be truncated domes of the dimensions shown on the plans. Domes shall be
prefabricated by the manufacturer as a pattern on cast steel pavers.
Pavers shall meet all Americans with Disabilities Act (ADA) requirements for truncated domes, and when installed,
shall be capable of producing the pattern of domes as shown on the plans.
Pavers shall meet the requirements of ASTM C 902 or ASTM C 936.
Alternate materials may be used, if pre-approved by the Engineer. The Contractor shall submit a sample of the
product, the name of the selected supplier, and documentation that the product meets all contrast requirements and will
be fully compatible with the curb ramp surface to the Engineer for approval prior to start of work. Known vendors of
alternate products include but are not limited to the following:
Vendor Name Product Phone Numbers
TMA Construction Supply CAST in TACT Warning
Panels
303-295-6050
East Jordan Iron Works, Inc. Truncated Dome Plates 800-626-4653
Neenah Foundry Detectable Warning Plate 800-558-5075
The domes and the underlying surface shall have a minimum of 70% contrast with the light reflectivity of the
adjoining surface. The contrast shall be verified using the following equation:
100
1
1 2
B
Contrast B B
Where B1 = Light Reflectance Value (LRV) of the lighter area
B2 = LRV of the darker area
Absolute black and white will not be permitted.
The contrast shall be achieved by adding pigment during the fabrication of the paver. Prior to start of work, the
Contractor shall submit appropriate documentation from the manufacturer verifying that the contrast has been met,
along with a sample paver, to the Engineer for approval.
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REVISION OF SECTION 608
CONCRETE CURB RAMP
Bedding and joint sand shall be free of deleterious or foreign matter. The sand shall be natural or manufactured from
crushed rock. Limestone screenings or stone dust shall not be used. Sand for bedding material shall conform to
ASTM C 33. Sand that is to be placed between joints shall conform to ASTM C 144.
Subsection 608.03 shall include the following:
(g) Detectable Warnings. Pre-fabricated pavers for detectable warnings shall be brought to the site in steel banded,
plastic banded or plastic wrapped cubes capable of being transported by a fork lift or clamp lift. Pavers shall be
carefully removed and stacked in a manner which results in the least amount of damage. All pavers that are
damaged during transport or delivery will be rejected and shall be replaced at the Contractor’s expense. Minor
cracks or chipping due to transport and handling that do not interfere with the structural integrity of the paver or
the overall pattern of truncated domes will not be deemed as grounds for rejection.
The Contractor shall spread the bedding sand evenly in the area defined and shall screed the sand to an appropriate
embedment depth as shown on the plans or as directed by the Engineer. Sufficient sand should be placed to stay
ahead of laid pavers
Pavers shall be placed in a running bond pattern. Domes shall be aligned to create a square grid in the
predominant direction of travel as shown in the plans. Pavers shall be installed such that the base of the truncated
dome is at the same elevation as the adjoining surface, allowing for a smooth transition between the curb ramp and
the detectable warning.
When cut pavers are required to fill gaps between the pavers and the edge of concrete, the Contractor shall bevel
portions of the truncated domes at a 45-degree angle to create a smooth transition between the partial dome and the
curb ramp surface. Unless otherwise directed by the Engineer, pavers shall be cut and installed in such a manner
that the domes on the cut sections will not significantly impact the overall pattern of the truncated domes.
The Contractor shall use a plate vibrator to embed the pavers into the sand. The size and type of plate vibrator
shall be in accordance with manufacturer’s recommendations, or as directed by the Engineer. All pavers that are
damaged during embedment shall be replaced at the Contractor’s expense.
Joint spacing between paver units shall be in accordance with the manufacturer’s recommendations, or as
approved by the Engineer. Joints shall be filled completely with joint sand. Excess sand shall be removed by
sweeping.
(h) Alternate products. Alternate materials shall be installed in accordance with manufacturer’s recommendations.
The concrete surface to which alternate materials are to be applied shall be prepared in accordance with
manufacturer’s recommendations. Material requirements, color and application shall be in accordance with
manufacturer’s recommendations and as approved by the Engineer.
Subsection 608.05 shall include the following:
Detectable warnings on curb ramps, including sand, pavers, alternate materials, and all other work and materials
necessary for fabrication, transport, and installation will not be measured and paid for separately, but shall be included
in the work.
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REVISION OF SECTION 609
CURB AND GUTTER
Section 609 of the Standard Specifications is hereby revised for this project as follows:
Subsection 609.02 shall include the following:
All concrete mix designs utilized shall be submitted to the City representative and approved a minimum of one week
prior to the beginning of construction.
Concrete mixes will be subject to inspection and tests as required to assure compliance with quality requirements.
Subsection 609.03 shall include the following:
(j) Finishing. The surface finish for Curb and Gutter Type 2 (Special) shall be abrasive blast finish.
Subsection 609.06 shall include the following:
Pay Item Pay Unit
Curb Type 2 (Section B) LF
Curb and Gutter Type 2 (Section I-B) LF
Curb and Gutter Type 2 (Section II-B) LF
Curb and Gutter Type 2 (Special) LF
The price of all pay items shall be full compensation for all excavation, concrete, forms, joint materials, reinforcement,
tooling and finishing.
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REVISION OF SECTION 610
MEDIAN COVER MATERIAL
Section 610 of the Standard Specifications is hereby revised for this project as follows:
In Subsection 610.02 delete the second paragraph and replace with the following:
All concrete used for median cover material shall be Class B and meet the requirements in Section 601. All concrete
mix designs utilized shall be submitted to the City representative and approved a minimum of one week prior to the
beginning of construction.
In Subsection 610.03 delete the third paragraph and replace with the following:
(b) Concrete. Construction requirements shall conform to the requirements of subsection 608.03. The surface finish
shall be abrasive blast finish.
A. Abrasive-Blast Finish: Provide abrasive-blast finish where indicated on the Drawings
1. Perform abrasive blasting 24 to 72 hours after casting when concrete strength ranges between 1000 and
1500 psi (6.9 and 10.3 MPa).
2. Coordinate with formwork construction, concrete placement schedule, and formwork removal to ensure
that surfaces to be abrasive blasted are treated at the same age for uniform results.
B. Surface Continuity: Perform abrasive-blast finishing in as continuous an operation as possible, utilizing same
work crew to maintain continuity of finish on each surface or area of Work. Maintain required patterns or
variances in depths of blast to match design reference sample or mockup.
C. Depth of Cut: Use an abrasive grit of proper type and gradation to expose aggregate and surrounding matrix
surfaces to match design reference sample or mockup, as follows:
1. Brush: Remove cement matrix to eliminate surface sheen and expose face of fine aggregate. No reveal.
2. Light: Expose fine aggregate with occasional exposure of coarse aggregate and uniform color. Maximum
reveal 1/16-inch (1.5 mm).
3. Medium: Generally expose coarse aggregate with slight reveal. Maximum reveal 1/4-inch (6 mm).
4. Heavy: Expose and reveal coarse aggregate to a maximum projection of one-third of its diameter; reveal
1/4- to 1/2-inch (6 to 12 mm).
D. Abrasive Blasting: Abrasive blast corners and edges of patterns carefully, using back-up boards, to maintain
uniform corner or edge line. Determine type of nozzle, nozzle pressure, and blasting techniques required to
match design reference sample or mockup.
E. Concrete Cleaning: After abrasive blasting to required depth is completed, clean surface with commercial
concrete cleaner, as produced by ProSoCo or equal, according to the manufacturer's instructions and
recommendations.
1. Thoroughly neutralize and flush cleaning solution from finished surfaces with water under pressure.
2. Protect adjacent materials and finishes from washing and run-off.
Contractor shall provide concrete sample with range of sandblast finish textures for preliminary selection by
Landscape Architect. Contractor shall provide final 10 square foot sample of concrete for final approval.
Subsection 610.05 shall include the following:
Pay Item Pay Unit
Median Cover Material (Decorative) SF
The price for all pay items shall be full compensation for furnishing and placing all materials, excavation, concrete,
forms, joint materials, reinforcement, tooling, and finishing.
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REVISION OF SECTION 619
WATER SERVICE
Section 619 of the Standard Specifications is hereby revised for this project as follows:
Subsection 619.01 shall include the following:
Water service consists of installing a new water service line for the irrigation controller at the location shown on the
plans according to the requirements of the current City of Fort Collins-Standards. Work includes installing service
line, taps and appurtenances, curb stop, backflow preventor, and backfilling with flowable fill concrete.
The Contractor shall cooperate and coordinate with the City of Fort Collins when shutting off water to minimize
downtime to customers.
Subsection 619.04 shall include the following:
Water Service will be measured by the actual number installed and shall include all work and materials necessary to
provide water service to the new irrigation controller.
Subsection 619.05 shall include the following:
Pay Item Pay Unit
Water Service Each
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REVISION OF SECTION 619
WATER LINES
Section 619 of the Standard Specifications is hereby revised for this project as follows:
Subsection 619.01 shall include the following:
This work consists of furnishing all materials and workmanship necessary to abandon existing utilities, construct a
4-inch water line and construct a 4-inch water meter vault per the Plans and the City of Fort Collins Standards. The
Contractor shall be responsible for potholing existing utilities and determining the profile of the water line. The depth
of the 4-inch meter vault shall be determined by the Contractor based off of water line profile.
Subsection 619.04 shall include the following:
Water Meter Vault will be measured as a single lump sum item. No measurement for payment shall be made of any of
the work, materials, and equipment required for this item.
Subsection 619.05 shall be include the following:
The Water Meter Vault lump sum quantity shall not be measured, but shall include all the Contractor’s cost including,
but not limited to, pipe, potholing of existing utilities, locating and protecting existing utilities, excavation, bedding
material, fittings, tracer wire, equipment, labor, backfilling, compaction, dewatering, permits, coordination with the
City of Fort Collins, creating the water line profile, installing vertical bends to avoid utility conflicts, and testing to
install the water line work per the Plans and City of Fort Collins Standards.
The lump sum quantity shall also include all the Contractor’s costs to furnish and install a 4-inch meter vault per the
City of Fort Collins Standard Details 17-A, 17-B, and 17-C. No separate payment shall be made for determining vault
depth, providing and installing vault piping and fittings, excavation, backfilling, spool pieces, compaction, testing,
labor or any other such incidentals related to the 4-inch meter vault work.
The lump sum quantity shall all also include the Contractor’s costs for materials, equipment, and labor necessary to
abandon the existing 4-inch water line and existing water meter vault per the Plans and City of Fort Collins Standards.
Partial payments for this item may be made as the work progresses based on evaluation and determination of the work
completed by the Project Engineer.
Pay Item Pay Unit
Water Meter Vault Lump Sum
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SECTION 621
DETOUR PAVEMENT
Section 621 is hereby added to the Standard Specifications for this project and shall include the following:
DESCRIPTION
This work shall consist of construction of detour pavement as shown on the plans. It is the intent of the City that this
item include all work and materials necessary to provide a detour roadway meeting or exceeding the requirements as
contained herein and as shown on the plans.
MATERIALS
The Contractor shall be responsible for quality control required to assure adequate quality of Hot Mix Asphalt used in
the construction of the detour.
CONSTRUCTION REQUIREMENTS
Detour pavement construction shall include grading, embankment material, planing and other items of work necessary
for the construction of detour pavement. The Contractor shall construct temporary ditches, temporary culvert pipe, and
maintain existing storm sewer necessary for the control of storm drainage. Detour pavement thickness shall be at least
the thickness shown on the plans. The Contractor shall remove the detour pavement when it is no longer needed to
maintain traffic.
Earthwork shall be constructed in accordance with the requirements of Section 203.
The Contractor shall maintain the detour for the entire period that it is open to traffic. Any distress that affects the ride,
safety or serviceability of the detour roadway shall be corrected immediately at the Contractor’s expense as directed by
the Engineer.
The Contractor shall provide smooth pavement transitions between new and existing roadways. Transverse joints
between new and existing pavement shall be constructed with Hot Mix Asphalt. Grade differences shall not exceed
4% break-over. Longitudinal joints which have a vertical drop-off of one inch or greater shall be tapered with Hot Mix
Asphalt. Tapers shall be 8 horizontal to 1 vertical or flatter.
METHOD OF MEASUREMENT
Detour Pavement will be measured by the square yard of hot mix asphalt placed in the detour.
BASIS OF PAYMENT
The accepted quantities will be paid for at the contract unit price for each of the pay items listed below that appears in
the bid schedule.
Pay Item Pay Unit
Detour Pavement Square Yard
Embankment used in the detour that will become part of the ultimate roadway embankment will be measured and paid
for in accordance with Section 203. Placement of other embankment required for the detour and removal of excess
embankment when the detour is removed will not be paid for separately, but shall be included in the price of detour
pavement.
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SECTION 621
DETOUR PAVEMENT
All work necessary and incidental to the construction, maintenance, and removal of the detour pavement, including
grading, temporary drainage facilities, temporary embankment material, asphalt, and planing will not be measured and
paid for separately but shall be included in the work.
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REVISION OF SECTION 623
PLASTIC PIPE (IRRIGATION SLEEVE)
Section 623 of the Standard Specifications is hereby revised for this project as follows:
Subsection 623.01 shall include the following:
This work consists of furnishing all materials and workmanship necessary to install two 4 inch and one 2 inch sleeves
for future irrigation as shown on the plans.
The sixth paragraph of Subsection 623.32 shall be deleted and replaced with the following:
Plastic pipe will be measured by the linear foot of trench required to install two 4 inch and one 2 inch sleeves and will
include the cost of the detectable underground marking tape.
Subsection 623.33 shall include the following:
Pay Item Pay Unit
Plastic Pipe (Irrigation Sleeve) Linear Foot
Valve boxes will not be paid for separately, but shall be included in the cost of the plastic pipe.
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REVISION OF SECTION 625
CONSTRUCTION SURVEYING
Section 625 of the Standard Specifications is hereby revised for this project as follows:
Subsection 625.01 is hereby revised to include the following:
The City of Fort Collins will provide all construction survey staking for the project. City Survey Crews will perform
the surveying required for the Horsetooth and Timberline Intersection Widening/Reconstruction Project No. AQC
M455-010.
The Contractor must submit a survey request form to the City Surveyors a minimum of 72 hours prior to needing any
surveying.
If the requested survey cannot be accomplished in the time frame requested by the Contractor and it will affect the
critical path on the construction schedule, the City will utilize a Contract Surveyor at the owner’s expense.
Should a sudden change in the Contractor’s operations or schedule require the survey personnel to work overtime, the
Contractor shall pay the additional overtime expense.
The Contractor shall specify the offsets required for each survey item. This information shall be provided at the pre-
construction meeting.
All survey staking destroyed by the Contractor, vandalism or by any other reason will be replaced at the Contractor’s
expense. The Contractor’s designated representative will be required to authorize any requested re-staking or
additional services at the time the services are completed. Services designated as extra will be billed at an hourly rate
per the prevailing rate schedule of the surveyor.
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.
All existing survey monuments and property corner located outside of the project grading limits as defined on the plans
that are damaged or destroyed by the Contractor will be replaced at the Contractor’s expense.
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.
All existing survey monuments and property corners located within the project grading limits which are intended to
remain in place and intact as defined on the plans shall be protected by the Contractor. Where necessary monuments,
property corners, and section corners will be adjusted or replaced by the City for this project.
1. Control
Location of horizontal and vertical control points will be provided at approximately 1000-foot intervals.
Monuments will be set outside the limits of construction.
2. Easements and Right of Way
Temporary construction easements (TCE) and those portions of right of way between TCE’s will be staked at 100
foot intervals on tangents, PCs, 50 foot intervals on curves, angle points and corner points.
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REVISION OF SECTION 625
CONSTRUCTION SURVEYING
3. Excavation and Embankment
a. One set of slope stakes at 50-foot intervals (stations) on each side of the proposed road including intersections.
Staking information to include cut/fill for
“limit of cut” or “limit of fill” location
decision point (ditch flowline or grade break)
edge of pavement
roadway centerline
b. One set of shoulder and/or curb stakes at 50-foot stations on each side of the road including intersections.
c. One set of slope or shoulder stakes for the grading of each driveway and field access.
d. Ditch grades shall be defined by the slope staking described above.
1. Storm Drainage
One set of offset stakes for each storm drain pipe and inlets.
2. Utility Crossing
One set of offset stakes for the utility conduit crossings.
3. Subgrade and Paving
a. One set of blue top subgrade stakes at 50-foot stations on tangents, PCs and PT’s after completion
of the subgrade preparation. Stakes to be set at 25-foot stations for horizontal curves with radius
less than 1,000 feet and at all vertical curves. Blue tops will be set on centerline and the edge of
pavement on both sides of the roadway. These blue tops will remain in place to be used for the
aggregate base course or paving operations.
4. Signs
One set of stakes to locate each sign.
5. Delineators
No survey will be provided. The Contractor shall install delineators as specified in the plans.
6. Striping
The City of Fort Collins will provide layout of all temporary pavement striping. The City of Fort
Collins will provide layout for the permenant striping.
7. Mailboxes, Newspaper Boxes and Address Posts
No survey will be provided. The Contractor shall reset all mailboxes, newspaper boxes and address
posts per agreement with the property owner and approval by the Engineer.
8. Property Corners and Section Corners
Reset property corners located along the right of way and section corners within the project grading
limits.
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REVISION OF SECTION 627
PAVEMENT MARKING
Section 627 of the Standard Specifications is hereby revised for this project as follows:
Subsection 627.01 shall include the following:
The City of Fort Collins will furnish and install all permanent pavement markings and signing for the project. The
Contractor is required to coordinate with the City for the completion of the work.
Subsection 627.10 shall include the following:
All Pavement Marking Tape (Removable) shall be removed in a fashion as not to damage the concrete pavement and
top lift asphalt.
Subsection 627.12 shall be modified to include:
Removal of marking tape will be incidental to the cost of the Pavement Marking Tape (Removable).
Payment will be made under:
Pay Item Pay Unit
4 Inch Pavement Marking Tape (Removable) LF
8 Inch Pavement Marking Tape (Removable) LF
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REVISION OF SECTION 630
CONSTRUCTION ZONE TRAFFIC CONTROL
Section 630 of the Standard Specifications is hereby revised for this project as follows:
Subsection 630.01 shall include the following:
All devices, signs, and temporary safety fencing (both orange plastic and chain link) necessary for the construction
zone traffic control shall be included in the lump sum line item “Construction Zone Traffic Control”. Secondary line
items for flagging and portable message signs have been included in the project under the line items “Flagging” and
“Portable Message Sign Panel”. These line items are intended for flagging and portable message sign panels for the
construction zone traffic control for the project. The City will direct when additional flagging and portable message
sign panels are to be used on the project.
The Contractor will create Business Access Specialty Signs to be used for the project. The Contractor will be required
to mount these signs on portable bases to be placed at business access points during construction. These signs will be
measured by how many signs are made for the project.
Subsection 630.10 shall include the following after the first paragraph:
The Contractor’s Superintendent and all others serving in a similar supervisory capacity shall have completed a
CDOT-approved two-day Traffic Control Supervisor training as offered by the CCA. The one-day ATSSA Traffic
Control Technician (TCT) training along with the two-day ATSSA Traffic Control Supervisor training will serve as an
alternate. If the alternate is chosen, the Contractor shall provide written evidence that at least an 80 percent score was
achieved in both of the two training classes. The certifications of completion or certifications of achievement for all
appropriate staff shall be submitted to the Engineer at the preconstruction conference.
If the Traffic Control Supervisor is replaced during the project, the Engineer shall be given a minimum of one (1) week
notice and qualifications shall be submitted for approval of the Traffic Control Supervisor’s replacement.
Subsection 630.10(a) shall include the following:
For this project, a MHT shall be prepared and submitted for approval to the City Traffic Division by 12:00 noon, two
working days prior to the commencement of work for simple lane closures. (Note: MHT’s for work done on Monday
and Tuesday shall be submitted the previous Friday by 9:00 a.m.). Facsimiles of plans shall not be allowed. No phase
of the construction shall start until the MHT has been approved. Failure to have an approved MHT shall constitute
cause for the City to stop work, as well as the Contractor's forfeiture of payment for all work and materials at that
location, with no adjustment in the contract time.
Subsection 630.14 shall include the following:
Additional flagging requested by others, including City Departments and utility representatives, must be approved by
the Engineer prior to performing the work.
Subsection 630.16 shall be revised as follows:
The Contractor shall supply and pay all costs associated with the traffic control for this project.
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REVISION OF SECTION 630
CONSTRUCTION ZONE TRAFFIC CONTROL
The accepted quantities will be paid for at the contract unit price for each of the pay items listed below:
Pay Item Pay Unit
Flagging Hour
Business Access Specialty Sign Each
Portable Message Sign Panel Day
Construction Zone Traffic Control Lump Sum
Individual traffic control devices, labor required to erect and maintain traffic control in accordance with approved
MHT’s, Traffic Control Supervisor, Traffic Control Management, and Traffic Control Inspection will not be measured
and paid for separately, but shall be included in Construction Traffic Control, Lump Sum.
The flaggers shall be provided with communication devices (no cell phones) when required. These devices will not be
measured and paid for separately, but shall be included in the Work.
The cost of batteries, electricity and/or fuel for all lighting or warning devices shall not be paid for separately but shall
be considered subsidiary to the item and shall be included in the Work. Sandbags will not be measured and paid for
separately, but shall be included in the Work.
The Contractor may provide larger construction traffic signs than those typically used in accordance with the MUTCD,
if approved; however, no additional payment will be made for the larger signs.
The City shall not be responsible for any losses or damage due to theft or vandalism.
Work Hours: Work hours are 7 AM to 6 PM, Monday through Friday. Extended hours and weekend work are
anticipated and will be permitted with written approval from the Project Manager. Night time work shall be permitted
with written approval from Project Manager. Work shall be permitted on holidays with written approval from the
Project Manager. Work requests beyond working hours must be submitted to the Project Manager a minimum of (5)
working days prior to the request date.
Night and weekend work will be allowed with 5 days prior notice to the Project Manager. All costs associated with
nighttime work will be incidental to the work.
Work Zone Phasing: The City has provided Phasing Plans, for informational purposes only, as a suggested way to
construct the project. The Contractor will be required to submit Construction Phasing Plans to the City, for approval,
prior to the start of construction. The Contractor will maintain current through lanes and turn lanes, as they exist
today, for the intersection through May 31, 2015. For the dates of May 31, 2015 through August 15, 2015, the
Contractor may request closures of Horsetooth Road. See Section 105 for more details regarding the allowed
closures during this time period. The Contractor is required to submit a traffic control plan to the city for approval.
During these dates, May 31, 2015 through August 15, 2015, the Contractor will be required to maintain four travel
lanes (two northbound and two southbound) on Timberline Road.
Additional detour signs may be needed during closures and/or requested by the city. All construction traffic signs
necessary for approved detour signing will be considered subsidiary to Item 630 Construction Zone Traffic Control.
Any additional Portable Message Sign Panels required will be paid for at the contract price.
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REVISION OF SECTION 630
IMPACT ATTENUATOR (TEMPORARY)
Section 630 of the Standard Specifications is hereby revised for this project to include the following:
DESCRIPTION
This work consists of furnishing, installing, certifying, moving, repairing, maintaining, and removing temporary
impact attenuators in accordance with these specifications and in conformity with the lines and details shown on the
plans or established.
MATERIALS
Each impact attenuator shall be selected from the Crash Cushion and End Treatment Application Chart as listed in the
Safety Selection Guide on the CDOT Design and Construction Project Support web site. Impact attenuators shall
conform to the requirements of the manufacturer and be capable of bi-directional shielding of the objects detailed and
located on the plans. Filler materials shall be treated according to the manufacturer's recommendations to prevent
freezing to a temperature of -50 °F.
If the posted speed limits of the construction zone are 45 miles per hour or less, the impact attenuator shall meet the
requirements of NCHRP Report 350 TL-2. For posted speed limits in the construction zone greater than 45 miles per
hour, the attenuator shall meet the requirements of TL-3.
CONSTRUCTION REQUIREMENTS
If sand barrel arrays are used, the Contractor shall paint, with white epoxy paint, an outline and the weight of each
barrel on the pavement prior to final placement. All numbers shall be a minimum of 6 inches high. Barrel type shall be
one of those listed in the Safety Selection Guide.
The site shall be prepared to receive the impact attenuator by filling, excavating, smoothing, constructing the paved
foundation pad, installing approved transition and anchoring, and all other work necessary for the proper installation of
the attenuator.
The impact attenuator shall be fabricated and installed in accordance with the manufacturer's recommendations. The
Contractor shall provide a copy of the manufacturer’s installation instructions and parts list to the Engineer prior to
installation of the device.
Each installation shall be supervised and certified as correct upon completion by a representative of the device
manufacturer or by an employee of the Contractor who is a certified installer. The certified installer shall have
completed device training and shall be registered with the manufacturer as a certified installer. The Contractor shall
submit all appropriate documentation to validate that the certified installer has completed device training and has been
registered with the manufacturer as a certified installer.
METHOD OF MEASUREMENT
Impact Attenuator (Temporary) will be measured by the number of attenuators shown on the plans, installed, certified,
and accepted.
.
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REVISION OF SECTION 630
IMPACT ATTENUATOR (TEMPORARY)
BASIS OF PAYMENT
The accepted quantities will be paid for at the contract unit price for the pay item listed below:
Payment will be made under:
Pay Item Pay Unit
Impact Attenuator (Temporary) Each
Payment will be full compensation for all work and materials required to furnish, install, certify, move, repair,
maintain, and remove the impact attenuator. Site preparation, foundation pad, epoxy painting, and all necessary
hardware including anchors and transitions will not be paid for separately, but shall be included in the work.
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REVISION OF SECTION 630
TEMPORARY TRAFFIC SIGNAL
Section 630 of the Standard Specifications are hereby revised for this project as follows:
Subsection 630.04 shall include the following:
During construction, a temporary signal shall be provided. Temporary traffic signal installation shall provide at least two
overhead 12-inch signal faces and one side-of-pole 12-inch signal face for each through traffic movement and for approach
traffic on side approach streets. At least one signal face shall be provided for each protected turning movement (arrows).
Temporary traffic signal installation can consist of a combination of existing equipment, temporary equipment and new
equipment as required to meet the needs of the temporary traffic patterns in the traffic control plans. Temporary traffic
signal installations shall conform to the minimum requirements of Chapter 4 of the Manual on Uniform Traffic Control
Devices (2009 Edition).
Temporary traffic signal plans shall be submitted to the Engineer for approval. No work will commence on modification
of existing signals or removal of any existing signal equipment until the temporary traffic signal plan has been approved.
The temporary traffic signal controller shall be capable of maintaining time-based coordination with adjacent traffic
signals. Up to four signal timing coordination plans shall be input into the signal controller by the Contractor. The
Contractor shall coordinate with the City of Fort Collins Traffic Engineer for obtaining the traffic signal timing data.
Subsection 630.15 shall include the following:
The unit price bid for Temporary Traffic Signal will include all work necessary to install the temporary traffic signal prior
to the commencement of construction. During construction, the Contractor will be responsible for signal head adjustments
and the City will be responsible for the wiring and maintenance of the controller and cabinet of the temporary traffic signal.
Use of stop signs at signalized intersection will not be permitted.
Revise Subsection 630.16 to include the following pay items:
Pay Item Pay Unit
Traffic Signal (Temporary) Each
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86
FORCE ACCOUNT ITEMS
DESCRIPTION
This special provision contains the estimate for force account items included in the Contract. The estimated amounts
marked with an asterisk will be added to the total bid to determine the amount of the performance and payment bonds.
Force Account work shall be performed as directed by the Engineer.
BASIS OF PAYMENT
Payment will be made in accordance with subsection 109.04. Payment will constitute full compensation for all work
necessary to complete the item.
Force account work valued at $5,000 or less, that must be performed by a licensed journeyman in order to comply with
federal, state, or local codes, may be paid for after receipt of an itemized statement endorsed by the Contractor.
Estimated
Force Account Item Quantity Amount
F/A Minor Contract Revisions 1 F.A. $ 200,000
F/A Partnering 1 F.A. $ 3,000
F/A Fuel Cost Adjustment 1 F.A. $ 15,000
F/A Asphalt Cement Cost Adjustment 1 F.A. $ 20,000
F/A OJT Colorado Training Program 640 Hours $ 1,920
F/A Erosion Control 1 F.A. $ 5,000
Force Account Item Descriptions:
F/A Minor Contract Revisions payment are for contract adjustments authorized through contract modification orders.
F/A Fuel Cost Adjustment is for any unforeseen increases or decreases in the prices of gasoline and diesel fuels from
those in effect during the month in which bids were received for the Contract.
F/A Asphalt Cement Cost Adjustment payment for any unforeseen increases or decreases in the prices of crude oil.
These oil prices are based on Encana’s price for Western Canadian Select converted to American dollars per ton.
F/A OJT Colorado Training Program payment is made for cost of maintaining on-the-job training program in
compliance with the provisions of On-The-Job Training in the Standard Special Provisions.
F/A Erosion Control payment is for any unforeseen storm water issues that require erosion control but not included
elsewhere in the plans or specifications. The work shall be approved by the Engineer prior to purchasing and placing
any erosion control items. If justification is not proven before implementation, payment will not be made.
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87
TRAFFIC CONTROL PLAN – GENERAL
The key elements of the Contractor's method of handling traffic (MHT) are outlined in subsection 630.10.
The components of the Traffic Control Plan (TCP) for this project are included in the following:
(1) Subsection 104.04 and Section 630 of the specifications.
(1) City of Fort Collins Work Area Traffic Control Handbook, Manual of Uniform Traffic Control Devices, 2009
Edition, or applicable statutory requirements of authority having jurisdiction. Fort Collins Handbook takes
precedence over Manual of Uniform Traffic Control Devices.
(2) Standard Plan S-630-1, Revised December 8, 2014, Traffic Controls for Highway Construction, Case No. 2,
18, 19, 20, 24 and Standard Plan S-630-2.
(3) Traffic Control Notes and Tabulation of Traffic Control Devices of the plans
(4) Construction Phasing Plans of the plans
Special Traffic Control Plan requirements for this project are as follows:
A. The Contractor will provide all construction traffic control for the project. The Contractor shall coordinate all
construction phasing and construction traffic control requests with the City Traffic Dept. Submittals for
major project phases shall be made at least three weeks before implementation of any element of the plan.
Adjustments to the approved plan may be required by the Owner based on actual traffic operation.
B. No work interfering with traffic flow shall be permitted during the hours of 7:00 AM to 6:00 PM unless
authorized in writing by the Traffic Engineer.
C. Road closures will follow the phasing plan provided in the construction documents and plans, unless approved
otherwise by the City of Fort Collins.
D. The Contractor shall maintain pedestrian and bicycle movements through the project site and the surrounding
trails. The Traffic Control plan shall address the method of handling these movements.
E. The Contractor shall, at all times, provide for emergency vehicle access into and through the construction site.
F. Keep traffic areas free of excavated material, construction equipment, pipe, and other materials and equipment.
G. Keep fire hydrants and water control valves free from obstruction and available for use at all times.
H. Conduct operations in a manner to avoid unnecessary interference with public and private roads and drives.
I. Provide and maintain continual temporary access for businesses and residences.
J. Roadway Usage Between Operations – 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.
K. The Contractor shall not have construction equipment or materials in the lanes open to traffic at any time,
unless directed.
L. The Contractor shall coordinate Traffic Control activities with the City of Fort Collins Traffic Engineering and
Electric Departments to assure that work activities by those departments are coordinated with the Contractor’s
activities. At the least 48 hours notice is required.
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TRAFFIC CONTROL PLAN – GENERAL
M. The Contractor shall maintain 11’ lanes throughout the project.
N. The Contractor shall provide a flagger for equipment, trucks, or other pertinent construction equipment
entering or leaving the construction area into traffic at all times.
O. During the construction of this project:
1.) From the start of construction through May 31, 2015 (Phases 1 and 2), the Contractor will maintain
current through lanes and turn lanes.
2.) From June 1, 2015 through August 15, 2015 (Phases 3 and 4), Timberline Road shall maintain 2
northbound and 2 southbound lanes at all times (left turn movements from northbound and
southbound Timberline Road to Horsetooth Road may be eliminated).
3.) After August 15, 2015, at a minimum, the Contractor shall have the following movements open to
traffic: all right turn lanes, two through lanes in each direction of Timberline Road and Horsetooth
Road, and at least one left turn lane in all directions.
Q. Traffic Signal (Temporary) – The temporary traffic signal shall meet the requirements of Revision of Section
630 – Temporary Traffic Signal. There will be a signal head for each lane of open travel. Designated left
turn signals shall be provided in all four directions of travel.
The Contractor shall not have construction equipment or materials in the lanes open to traffic at any time, unless
directed.
Prior to starting construction, the Contractor shall notify the City of Fort Collins Traffic Engineer of the date the
Contractor intends to start construction.
All costs incidental to the foregoing requirements shall be included in the original contract prices for the project.
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89
UTILITIES
The following Utilities are known to be within the project limits:
Utility/Agency Contact Phone
Sanitary Sewer – City of Fort Collins Andrew Gingerich (970) 221-6232
Water – City of Fort Collins Andrew Gingerich (970) 221-6232
Storm Water – City of Fort Collins Glen Schlueter (970) 224-6065
Forester – City of Fort Collins Ralph Zentz (970) 221-6302
Light & Power - City of Fort Collins Janet McTague (970) 221-6700
Telephone - Qwest Bill Johnson (970) 377-6401
Gas – Xcel Len Hildebrand (970) 225-7848
Cable – Comcast Don Kapperman (970) 567-0245
Level 3 Rick Miller (720) 888-7568
Traffic Operations – City of Fort Collins Joe Olson (970) 224-6062
The work described in these plans and specifications will require full coordination between the Contractor and the
Utility Companies, in accordance with Subsection 105.10 and while performing their respective operations, so the
utility work can be completed with minimum delays to all parties concerned.
The following utility work shall be performed by the Contractor:
The Contractor shall be responsible for coordinating the adjustment of all utilities on this project and scheduling the
work to coincide with construction activities.
The Contractor shall keep each utility company advised of any work being done to their facilities by the Contractor’s
forces, so that each utility company can coordinate their inspections for final acceptance with the Engineer.
Provide written notice to each utility company, with a copy to the Engineer, prior to any work by a utility company
that is to be coordinated with project construction. A minimum of three (3) calendar weeks of prior notice is required.
Contractor to obtain necessary permits form the City and utility companies prior to starting construction activities.
If needed, or as directed by the Engineer, the Contractor shall provide traffic control for any utility work to be
coordinated with the project’s construction, in accordance with an approved Method of Handling Traffic
(MHT).
The Contractor shall provide electrical connection to bus stop pad as shown on the plans.
The Contractor shall coordinate with the Fort Collins Water Utility Department, when resetting water meter and
resetting fire hydrant.
The Contractor shall coordinate with Fort Collins Light & Power when modifying vault.
The Contractor shall coordinate with the utility owner for adjustment of manholes.
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UTILITIES
The Contractor shall coordinate with the utility owner for the reset of fiber optic pull boxes.
The Contractor shall coordinate with the utility owener for the adjustment of valve boxes.
The Contractor shall also coordinate with the City of Fort Collins Traffic Department regarding the protection and
adjustment of traffic signal equipment
The following utility work shall be performed by the Utility Company or their agents:
Fiber Optic /Telephone – Qwest: Relocate, adjust and reset pedestals, lines and manholes
Fiber Optic / Cable – Comcast: Relocate and reset pedestals, lines and vaults
Fiber Optic - Level 3: Relocate lines and vaults
Lighting – City of Fort Collins: Relocate existing lights standards
Electric – City of Fort Collins: Relocate vaults and lines
Fiber Optic Traffic Operations – City of Fort Collins: Reset traffic control pull boxes and signal relocations
General
The Contractor shall comply with Article 1.5 of Title 9, CRS (“Excavation Requirements”), when excavation or
grading is planned in the area of underground utility facilities. The Contractor shall notify all affected utilities at least
three (3) business days prior to commencing such operations. Contact the Utility Notification Center of Colorado
(UNCC) to have locations of UNCC-registered lines marked by member companies. Call 1-800-922-1987 for locate
requests outside the Denver Metro area. All other underground facilities shall be located by contacting the respective
company. Utility service laterals shall also be located prior to beginning excavation or grading.
The locations of utility facilities, as shown on the plans and profile sheets and described herein, were obtained from the
best available information.
All costs incidental to the foregoing requirements will not be paid for separately, but shall be included in the work.
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STANDARD SPECIAL PROVISIONS
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92
COLORADO DEPARTMENT OF TRANSPORTATION
CITY OF FORT COLLINS, COLORADO
HORSETOOTH RD/TIMBERLINE ROAD OPERATIONAL IMPROVEMENT PROJECT
FEDERAL AID PROJECT NO. AQC M455-010 (19307)
STANDARD SPECIAL PROVISIONS
Date No. of Pages
Revision of Section 105 – Violation of Working Time Limitation (February 3, 2011) 1
Revision of Section 105 and 106 – Conformity to the Contract of Hot Mix
Asphalt (Less than 5000 Tons) (January 15, 2015) 8
Revision of Sections 105, 106, 412, 601 and 709 – Conformity to the Contract of
Portland Cement Concrete Pavement and Dowel Bars and Tie Bars for Joints (January 15, 2015) 23
Revision of Section 106 – Buy America Requirements (November 6, 2014) 1
Revision of Section 106 – Certificates of Compliance and Certified Test Reports (February 3, 2011) 1
Revision of Section 106 – Material Sources (October 31, 2013) 1
Revision of Section 106 – Supplier List (January 30, 2014) 1
Revision of Section 107 – Project Payrolls (May 2, 2013) 1
Revision of Section 107 – Responsibility for Damage Claims, Insurance Types,
And Coverage Limits (February 3, 2011) 1
Revision of Section 107 – Warning Lights for Work Vehicles and Equipment (January 30, 2014) 1
Revision of Section 108 – Liquidated Damages (May 2, 2013) 1
Revision of Section 108 – Project Schedule (July 31, 2014) 6
Revision of Section 108 – Subletting of Contract (January 31, 2013) 1
Revision of Section 108 – Payment Schedule (Single Construction Year) (October 31, 2013) 1
Revision of Section 109 – Asphalt Cement Cost Adjustment (Asphalt Cement
Included in the Work) (April 5, 2013) 2
Revision of Section 109 – Compensation for Compensable Delays (May 5, 2011) 1
Revision of Section 109 – Fuel Cost Adjustment (February 3, 2011) 2
Revision of Section 109 – Measurement of Quantities (February 3, 2011) 1
Revision of Section 109 – Measurement of Water (January 6, 2012) 1
Revision of Section 109 – Prompt Payment (January 31, 2013) 1
Revision of Section 203, 206, 304 and 613 – Compaction (July 19, 2012) 2
Revision of Section 208 – Aggregate Bag (January 31, 2013) 1
Revision of Section 208 – Erosion Log (January 31, 2013) 1
Revision of Section 250 – Environmental, Health and Safety Management (January 15, 2015) 14
Revision of Section 401 – Compaction of Hot Mix Asphalt (April 26, 2012) 1
Revision of Section 401 – Compaction Pavement Test Section (CTS) (July 19, 2012) 1
Revision of Section 401 – Plant Mix Pavements (February 3, 2011) 1
Revision of Section 401 – Temperature Segregation (February 3, 2011) 1
Revision of Sections 412 – Portland Cement Concrete Pavement Finishing (February 3, 2011) 1
Revision of Sections 412, 601, and 711 - Liquid Membrane-Forming Compounds
for Curing Concrete (May 5, 2011) 1
Revision of Sections 412 and 705 – Preformed Compression Seals (February 3, 2011) 2
Revision of Section 601 – Concrete Batching (February 3, 2011) 1
Revision of Section 601 – Concrete Finishing (February 3, 2011) 1
Revision of Section 601 – Concrete Form and Falsework Removal (July 28, 2011) 2
Revision of Section 601 – Concrete Slump Acceptance (July 29, 2011) 1
Revision of Section 630 – Construction Zone Traffic Control (February 17, 2012) 1
Revision of Section 630 – Retroreflective Sign Sheeting (May 8, 2014) 1
Revision of Section 630 – Signs and Barricades (January 31, 2013) 1
Revision of Section 703 – Aggregate for Hot Mix Asphalt (November 1, 2012) 2
Revision of Section 703 – Concrete Aggregate (July 28, 2011) 1
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93
COLORADO DEPARTMENT OF TRANSPORTATION
CITY OF FORT COLLINS, COLORADO
HORSETOOTH RD/TIMBERLINE ROAD OPERATIONAL IMPROVEMENT PROJECT
FEDERAL AID PROJECT NO. AQC M455-010 (19307)
STANDARD SPECIAL PROVISIONS
Date No. of Pages
Revision of Section 712 – Geotextiles (November 1, 2012) 2
Revision of Section 712 – Water for Mixing or Curing Concrete (February 3, 2011) 1
Affirmative Action Requirements – Equal Employment Opportunity (February 3, 2011) 10
Disadvantaged Business Enterprise (DBE) Requirements (Dec. 26, 2013) 9
Minimum Wages Colorado
U.S. Department of Labor General Decision Number CO150024,
MOD 1, Highway Construction for Larimer, Mesa, and Weld counties (January 9, 2015) 7
On the Job Training (July 29, 2011) 3
Partnering Program (February 3, 2011) 1
Required Contract Provisions – Federal-Aid Construction Contracts (October 31, 2013) 14
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EXHIBIT 3 - REVISED PLANS
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considered a coarse gradation if they pass below the maximum density line at the #4
screen.
Gradations for mixes with a nominal maximum aggregate size of ¾ inch or smaller are
considered a coarse gradation if they pass below the maximum density line at the #8
screen.
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