Public Works Department

Contra Costa County Public Works Department

OUR DOORS ARE OPEN

Main Office Business Hours

Monday through Thursday 7:00 a.m. to 5:00 p.m.

Friday 7:00 a.m. to 4:00 p.m. (closed 12:00 p.m. to 1:00 p.m.)

Records Counter is closed on Fridays

  1. Marsh Drive Bridge Replacement Project

    Contra Costa County Public Works will begin construction of the Marsh Drive Bridge Replacement Project, in Concord, starting on Monday, June 7, 2021 - January 2023, 7:00 am-4:00 pm, Monday-Friday. Drivers should expect delays. Read more...
  2. Street Upgrades in North Richmond

    Contra Costa County Public Works will be applying asphalt rubber chip seal covered with slurry to various residential roads in the unincorporated areas of North Richmond beginning Thursday, July 22, 2021 from 7:00 a.m.-5:00 p.m., Monday-Friday. Read more...
  3. Happy Valley Road Embankment Repair Project in Lafayette

    Contra Costa County Public Works will begin construction of the Happy Valley Road (HVR) Embankment Repair Project on Monday, August 9, 2021 at 7 am. HVR will be fully closed from Bear Creek Road to south of the project site near 4926 HVR for 70 days Read more...
  4. Chip Seal Application to begin in North Richmond in July

    The Contra Costa County Public Works Department will be applying a chip seal on roads in the following areas: North Richmond, Clyde, Bay Point, Bethel Island & Jersey Island starting July 12, 2021 - August 12, 2021, Monday - Friday, 7:00 a.m.-6:00 p.m. Read more...
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