Fairfax-Bolinas Road CONDITION UPDATES, thank you for your patience: At milepost 5.73, on weekdays, Fairfax-Bolinas Road is closed from Azalea Hill to Ridgecrest in West Marin. On weekends, the section of road will be open, but traffic will be routed through a single-lane with controlled two-way access. See project webpage for details.

Traffic Safety Programs

Planning & Operations

Traffic lightTraffic engineering is the foundation of our roads system in Marin County, with the goal of providing our community with the safest roads possible. Staff engineers are responsible for planning and designing traffic operations of all roads and streets, excluding state highways.

Through the study and review of collision data, traffic patterns, and user habits, staff strives to develop plans and implement programs to maintain an efficient and safe roadway system which addresses the needs of all users, both motorized and non-motorized, of the our road network. This includes, but is not limited to, conducting safety studies and traffic analysis, installation of traffic control devices such as signs, signals, lighting, road markings and speed limit changes, as well as parking planning and related restrictions.

Contact us - our staff is always available to answer questions and offer assistance as needed.

To report an emergency, such as a traffic signal malfunction, please go to our reporting page.

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