About the Department



The Public Works Department provides for the construction, maintenance and improvement of infrastructure within the unincorporated area of the County and the Flood Control District as well as county buildings and grounds. The department is organized to conform to the process of developing and building projects. Public Works maintains 660 miles of roads and 150 miles of streams; channels and other drainage facilities as well as maintains 93 county buildings.

To see a list of services we provide click here.
  1. April 26: Temporary Water Outage on Thursday

    To complete the relocation of the temporary water line out of the slide area, Contra Costa Water District will need to temporarily interrupt water service on Thursday, April 27, between 10:00 a.m. and 2:00 p.m. Read on...
  2. April 25: Morgan Territory Road Repair Project

    At their meeting today, members of the Board of Supervisors authorized the Public Works Department to advertise the Morgan Territory Road repair project. Read on...
  3. April 21: Water District Work Today through Monday

    Contra Costa Water District crews will be in the slide area preparing for the relocation of the temporary water line. Please note this will mean a brief outage of water service next week. Read on...
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  1. Alamo Summer Concert Series

    Alamo Parks & Recreation presents the "Alamo Summer Concert Series" at Livorna Park on Friday evenings from 6:30-8:30 p.m. Read on...
  2. Alamo Movie Under the Stars

    Alamo Parks & Recreation will hold the following two movie nights at Livorna Park: Secret Life of Pets on Friday, June 16 and Finding Dory on July 21. View Press Release
  3. County Road Closures

    Olinda Road in El Sobrante is closed between Castro Ranch and Valley View Roads. Valley View Road in El Sobrante is closed between San Pablo Dam Road and D'Avilla Way. PG&E crews are on site at both locations. View Press Release
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