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. May 2: Water District Work Scheduled for Wednesday

    The Water District is scheduled to remove the blue hose which may result in minor traffic delays. Read on...
  2. 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...
  3. 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...
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  1. New Alamo Bocce Ball Courts

    The ribbon cutting is scheduled for June 16 at 6:00 pm at Livorna Park in Alamo. View Press Release
  2. Balfour Road Widening Project

    The project will include a wider roadway and shoulders and is anticipated to start in late June/early July. View Press Release
  3. Safety Project to Start on Alhambra Valley Road

    The project on Alhambra Valley Road will start in June. The projects includes widening two curves and other improvements at Rancho La Boca Road and 400 feet west of Ferndale Road. View Press Release
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