Flashing Yellow Arrow Signal Modifications

Location:	Colorado
Posted:	May 13, 2026
Due:	May 20, 2026
Agency:	City of Thornton
Type of Government:	State & Local
Category:	V - Transportation, Travel and Relocation Services
Solicitation No:	23-208
Publication URL:	To access bid details, please log in.

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Docusign Envelope ID: 48FBBC3D-6DCB-42FD-9112-B28076846707

THE CITY OF THORNTON

9500 CIVIC CENTER DRIVE

THORNTON, CO 80229-4326

Project Manual

For

Construction of

FLASHING YELLOW ARROW SIGNAL MODIFICATIONS

THORNTON PROJECT NO. 23-208

CDOT PROJECT NO. SHO M286-056 / 25527

MAY 2026

Docusign Envelope ID: 48FBBC3D-6DCB-42FD-9112-B28076846707

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TABLE OF CONTENTS

Table of Contents

Invitation for Bid Proposals

Information for Bidders

Procedure for Contract Signing

Bid Proposal

Contractor's Post-Qualifications

Reference Authorization and Release Form

Post-Qualification Questionnaire

Bidder’s Post-Qualification Affidavit

Contract

EXHIBIT A - SPECIAL CONDITIONS

EXHIBIT B - GENERAL CONDITIONS

EXHIBIT C - DRAWINGS (UNDER SEPARATE COVER)

EXHIBIT D - SCHEDULE OF CONTRACT PAY ITEMS AND PRICES

EXHIBIT E - CONTRACTOR’S SUBCONTRACTOR LISTING

EXHIBIT F - PERFORMANCE BOND & LABOR AND MATERIAL PAYMENT BOND

EXHIBIT G - INSURANCE REQUIREMENTS & CERTIFICATE

EXHIBIT H - STANDARD CONCRETE SPECIFICATIONS

EXHIBIT I - SAMPLE NOTICE OF AWARD & NOTICE TO PROCEED

FHWA Form 1273 - Required Contract Provisions, Federal-Aid Construction Contracts

CDOT Standard Special Provisions

Project Special Provisions

Davis Bacon Wage Determination

Appendix

• CDOT Form #606, Anti-Collusion Affidavit

• CDOT Form #1413, Bidders List

• CDOT Form #605, Contractor’s Performance Capability Statement

• CDOT Form #621, Assignment of Anti-trust Claims

Addenda

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Docusign Envelope ID: 48FBBC3D-6DCB-42FD-9112-B28076846707

INVITATION FOR BID PROPOSALS

City of Thornton

9500 Civic Center Drive

Thornton, CO 80229-4326

Sealed Bid Proposals for Construction of Flashing Yellow Arrow Signal Modifications, Thornton

Project No. 23-208, CDOT Project No. SHO M286-056 / 25527 will be received in the Contract

Administration Office at the Thornton City Hall (2nd floor), 9500 Civic Center Drive, until 3:00 p.m.,

May 20, 2026. At that time, Bid Proposals will be publicly opened and read aloud.

Note: Late Proposals will not be accepted under any circumstances. Vendors electing to submit

their bid via mail or courier service accept all responsibility for delivery to the Contract

Administration Office by the bid closing time indicated. Thornton is not responsible for lost or late

delivery of bid proposals.

Project Description: The Project consists of modifications to convert existing traffic signal heads

from Protected-Permissive Left Turn (PPLT) to Flashing Yellow Arrow (FYA). This Project is grant

funded through CDOT. The Engineer’s Estimate for construction is approximately One Million Five

Hundred Thousand Dollars ($1,500,000). 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

hours required for On the Job Training is 320 hours.

An EEO-1 Report must be submitted to the Joint Reporting Committee if the contractor and

subcontractors meet the eligibility requirements (29CFR 1602.7). For additional information

regarding these federal requirements, please refer to: https://www.eeoc.gov/employers/eeo-1-

data-collection. Davis Bacon Wages are required to be paid on this Project.

The City of Thornton, in accordance with the provisions of Title VI of the Civil Rights Act of 1964

(78 Stat. 252, 42 US.C. §§ 2000d to 2000d-4) and the Regulations, hereby notifies all bidders that

it will affirmatively ensure that any contract entered into pursuant to this advertisement,

disadvantaged business enterprises will be afforded full and fair opportunity to submit bids in

response to this invitation and will not be discriminated against on the grounds of race, color, or

national origin in consideration for any award.

Contractors interested in submitting a Bid Proposal for this Project must at a minimum be pre-

qualified with the Colorado Department of Transportation (CDOT). Copies of CDOT’s pre-qualified

Contractor list can be obtained at http://www.dot.state.co.us/Bidding/listings.html.

Thornton utilizes the BidNet Direct System (BidNet) in the advertisement and facilitation of

solicitations. Therefore, respondents must ONLY rely on documents provided on the BidNet Direct

System (BidNet) website: www.BidNetDirect.com.

Thornton utilizes the BidNet Direct System at www.BidNetDirect.com to distribute official copies of

the Drawings and Project Manual (“Bid Documents”) for use in preparing Bid Proposals. Bidders

will be required to register with the website to download the Bid Documents and Addenda. There

is no charge by BidNet Direct for this service. If you experience problems with the BidNet Direct

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This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

Flashing Yellow Arrow Signal Modifications

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See also