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.

Ridgecrest Road Culvert Outfall Rehabilitation



Winter storms of 2022-2023 led to the separation of a culvert outfall pipe through an existing retaining wall on Ridgecrest Road in unincorporated Kentfield. Temporary emergency protect measures were put in place to prevent further damage to the existing wall. Permanent repairs will include the installation of a new outfall pipe, concrete wall repairs, and rock slope protection.


The construction estimate is $250,000 and will be funded by the County's Road & Bridge fund.

Traffic Impacts

There will be minimal public impact caused by partial lane closures on Ridgecrest Road as required by the construction activities.


Late Fall 2024

  • Anticipated start of construction
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