Public Works Department

Contra Costa County Public Works Department

Introducing Mobile Citizen.  A user-friendly Smart Phone (Android, iOS) mobile application to help residents "on the go" report non-emergency concerns such as potholes, graffiti, illegal dumping and other service requests in unincorporated communities.  Download the app, take a photo, provide comments, details about the location and submit to Public Works.  It's that easy!

Mobile Citizen icon

Visit our Mobile Citizen webpage to learn more.


Public Works staff will be available

Monday – Thursday 7am - 5pm

Friday 7am – 4pm, closed 12-1 (Fridays only)


In an effort to protect our customers, and employees, we are following the County Health Officer orders requiring anyone working at, or visiting, an essential business to wear a face mask and keep a distance of 6 feet apart.


COVID-19 6 feet apart image

For information related to COVID-19 visit

The Public Works Department Capital Projects Division has been very busy. With two major projects this year in the City of Martinez alone. Namely the new consolidated Emergency Operations Center/Public Safety Building (EOC/PSB) which was completed in June and The County Administration Building (CAO) which was completed in July/August.  Click on the pictures below for current details about these projects.

County Administrative Building


Public Safety Building and Emergency Operations Center

EOC - 1
  1. Tree Removal and Sidewalk Repair Work in Rodeo

    Contra Costa County Public Works Department will begin a tree removal and sidewalk repair project along Willow Avenue, between Mariners Pointe and Viewpointe Boulevard, in Rodeo beginning on November, 30, 2020 - December 18, 2020, 9:00 a.m.-4:00 p.m. Read more...
  2. Contra Costa County Public Works Launches New Tool for Service

    Have you noticed a pothole or graffiti and wanted a quick and easy way to report it? The Contra Costa County Public Works Department now uses a versatile and user-friendly Smart Phone (Android, iOS) application called Mobile Citizen to help you. Read more...
  3. Three Creeks Parkway Restoration Begins in Brentwood

    Construction work will take place along the Marsh Creek channel and adjacent areas from Sungold Park to Dainty Avenue in Brentwood beginning on May 18, 2020 and last through December, 2020 between 7:00 am-5:00 pm Monday through Friday, weather permitting. Read more...
  4. PG&E to Begin Construction on Bay Point Utility Undergrounding Project

    Construction will begin on Tuesday, September 3, 2019.
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