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.

Rosal Way Storm Drain Improvement



The purpose of this project is to alleviate nuisance water ponding that occurs after heavy storms on Rosal Way in unincorporated San Rafael. The scope includes installing three new catch basins and storm drains to connect to the existing storm drain system. This project is not intended to solve flooding issues that occur within the Santa Venetia community.


The estimated $190,000 project will be funded by the County's Road & Bridge Fund.

Traffic Impacts

It is expected that there will be traffic impacts to residents on Rosal Way and detour routes will be used. Specific traffic control measures and impact details will be publicized once construction plans are approved.


August - October 2024

  • Anticipated construction phase
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