Reference: 0672-6D9M03
Flood Control Zone 1 Marsh Creek Storm Damage Repair Project, Martinez, CA
BRENTWOOD, CA

Owner: Contra Costa County Flood Control and Water Conservation District CA, CA

Bid Date:  06/09/2026 at 02:00pm

We are requesting bids for the following trades and/or material suppliers:

• 0009 - 120100 - TRAFFIC CONTROL SYSTEM

Furnish, install, operate, maintain, and remove the traffic control system for lane closures, shoulder closures, and ramp closures on the Richmond-San Rafael Bridge and approaches per Standard Specifications, special provisions, and as shown in the plans. Includes all signs, devices, and delineation for temporary traffic control during construction.

• 0016 - 130201 - WATER POLLUTION CONTROL PROGRAM - LS

Develop and implement a water pollution control program per Standard Specifications. Includes all BMPs, erosion control, sediment control, and waste management measures to prevent discharge of pollutants into San Francisco Bay and adjacent waters during construction.

CONSTRUCTION STAKING

Bid documents can be viewed at or obtained from:

Cowan & Thompson Construction Inc. is a non-union signatory contractor. Subcontractors must possess a current contractor's license, insurance coverage and worker's compensation for the entire length of the contract. All subcontractors will be required to sign our standard Subcontract Agreement, 100% payment and performance bonds may be required. Please call if you need assistance in obtaining insurance, bonding, equipment, materials and/or supplies.

Cowan & Thompson Construction Inc. intends to work cooperatively with all qualified firms seeking work on this project. We are an equal opportunity employer and will work with any interested subcontractor to identify opportunities to break items into economically feasible packages.

Plans and specs for this project are available for your review either at our office or online:

Cowan & Thompson Construction, Inc.

888 Howe Rd

Martinez, CA 94553

Phone: (925) 372-9412

Email: [email protected]

Joe Edwards

Cowan & Thompson Construction Inc.
888 Howe Rd
Martinez, CA 94553
Phone: (925) 372-9412
Email: [email protected]
Mac Thompson

Published 5/22/2026 on
Construction Bid Source a Trade and Focus Publication
located at http://www.constructionbidsource.com
Phone: (888) 988-1208

This solicitation Ad will be archived 30 days after the bid date