Fairfax-Bolinas Road in West Marin at milepost 5.73 (approximately 2 miles west of Azalea Hill) is single-lane access with two-way traffic controlled through one lane. This condition is at the construction zone only and will remain in place until project is completed. See project webpage for more details. Thank you for your patience while this project progresses.
drone view of civic center


Marin County Department of Public Works


The Marin County Department of Public Works’ mission is to provide the community with quality services, maintain and improve our public infrastructures and facilities, and support the preservation of Marin’s unsurpassed beauty.


To be an empowered workforce known for safety, reliability, transparency, diversity, and responsiveness. We will deliver modern and integrated services in collaboration with the community and others.

What is the Department of Public Works?

Since its inception in 1955, the Public Works Department has grown to 20 divisions and is the county’s second-largest department in terms of personnel. Our work takes us to every corner of the almost 500 square miles of unincorporated land in Marin County.

The Department’s responsibilities go beyond repairing and maintaining over 420 miles of roads. Public Works is responsible for Marin's watersheds and related flood mitigation, waste management franchises, radio towers and communications, infrastructure and capital projects, printing services and County-wide procurement, local airports, public building repair and maintenance, as well as general government administration services. We also manage numerous regional and community-focused programs and special districts, including:

  • Marin County Flood Control and Water Conservation District
  • Waste Management and Stormwater Joint Powers Authorities (JPAs)
  • County Service Areas (CSAs)
  • San Quentin Village Sewer Maintenance District
  • Tidelands Use and Trust
  • Permanent Road Divisions (PRDs)
  • Road Impact and Traffic Mitigation funds

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