Bolinas Road Repairs Could Take 6 Months To Complete

MARIN COUNTY, CA — A section of Bolinas Road will be closed until further notice due to storm damage, Marin County officials said.

The eastbound lane of Bolinas Road at milepost 1.34 (approximately a quarter mile from Sky Oaks Road in West Marin) will be closed until crews can complete repairs on a roadway “slipout” – when ground beneath the road slides away – that has made the lane impassable.

The repair project may take up to six months to complete.

Traffic control measures are in place to allow for alternating two-way traffic through the westbound lane, controlled by temporarily installed traffic signals.

Drivers should expect wait times of up to five minutes. The temporary signals will be in place until the repairs are completed.

Over the course of the series of recent storms, the Marin County Department of Public Works has responded to more than 800 emergency calls for service, managed 25 road closures, cleared 13 debris slides, removed more than 100 trees from roadways, and performed maintenance work on multiple pump station facilities across unincorporated Marin.

The slipout on Bolinas Road occurred during a Jan. 9 storm.

Approximately 100 cubic yards of embankment material collapsed on the downhill side of the roadway, damaging part of the road.

DPW staff immediately initiated emergency procedures to close the eastbound traffic lane.
Traffic control measures were handled manually with flaggers until mobile traffic signals were installed January 11.

“DPW staff members are consulting with geotechnical engineering specialists to assess the roadway condition and adjacent slope stability and are working on the design of a retaining wall,” county officials said in a news release.

Project details, including the estimated cost and any potential traffic control updates, will be announced after the project design has been finalized and a construction contract is approved.
Wait times at the traffic signals may increase slightly during the construction phase.

County officials will seek reimbursement for the costs from the Federal Emergency Management Agency (FEMA).

For the latest updates visit Marin’s Public Emergency Portal.