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The original item was published from 1/31/2023 2:36:00 PM to 4/2/2023 12:00:00 AM.

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Marsh Drive Bridge Replacement project

Posted on: June 2, 2021

[ARCHIVED] Marsh Drive Bridge Replacement Project

Contra Costa County Public Works to begin Construction of the Marsh Drive Bridge Replacement Project


June 2, 2021, Concord, CA – Contra Costa County Public Works will begin construction of the Marsh Drive Bridge Replacement Project starting on Monday, June 7, 2021 through January 2023, barring unforeseen circumstancesWork will occur between 7:00 am-4:00 pm, Monday-Friday, weather permitting. Work will take place on Marsh Drive, approximately 0.2 miles west of Solano Avenue, in both unincorporated Contra Costa County and the City of Concord. There will be restrictions to minimize impacts during commute hours. The speed limit through the work area will be 25 mph during construction. Drivers should expect delays. 


The project will include reconstruction of approximately 1,000 feet of Marsh Drive near the bridge, installation of a retaining wall, channel improvements, and relocation of various utilities including water, electric power, and communication facilities. Work includes replacing the existing bridge with a new concrete bridge in a slightly shifted alignment to the north in stages built to current standards. The new bridge will include a 10-foot-wide separated bike and pedestrian facility. 


Funding for this project is provided by Federal Highway Bridge Program Funds, Local Road Funds, Contra Costa County Flood Control District Zone 3B Funds, Pacific Gas & Electric Funds, Contra Costa Water District Funds, and East Bay Regional Park District Funds.


Additional project information, including construction schedule, is available at 


About Contra Costa County Public Works Department:

Contra Costa County Public Works Department (CCCPWD) maintains over 660 miles of roads, 150 miles of streams, channels and other drainage and over 200 County buildings throughout Contra Costa County.   CCCPWD provides services such as Parks and Recreation, Sand Bag Distribution and Flood Control throughout unincorporated areas of Contra Costa County. To learn more about CCCPWD, please visit 

Marsh Drive Bridge Project Site 

Contact: Project Hotline: 800.684.2279; Media Inquiries: Kelly Kalfsbeek, 925.313.2115


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