Caltrans Scheduled to Continue Storm related Slope Protection Project on Southbound US 101 in Greenbrae, Marin County

Published: Apr 07, 2025

Schedule: Mondays through Fridays; 7 a.m. to 3:30 p.m.

The project will remove debris and repair and stabilize a slope along US-101 caused by rain events in November 2024. This project will preserve the expected li

Marin County - Caltrans is scheduled to continue a storm-related slope protection project near Southbound US-101 in the Greenbrae area in April. The location is just south of the Francisco Boulevard on-ramp in San Rafael.

fe span of the slope above the highway, maintain the proper function of the roadway and keep highways open for the transportation of goods and services.

Traffic could be affected along Southbound US-101 just South of Francisco Boulevard W. on-ramp and along Tiburon Boulevard near Bret Harte Road. Tiburon Boulevard in this area of Marin County is a city street - not part of State Route-131.

Intermittent one-way traffic control of Tiburon Boulevard in that location could be utilized between 7 a.m. and 3:30 p.m. in April and May to allow crews help to stabilize the slope.

The shoulder will be closed on Southbound US-101, and lanes could be closed in the area.

The installation of the retaining wall has started and will take about three weeks, followed by the reconstruction of the roadway, drainage, the installation of the guardrail.

The wall and roadway reconstruction will require excavation and backfilling. Residents in the area will see trucks throughout the day.

The project is expected to finish sometime in spring, 2025. All work depends on weather.

Please drive with caution. Slow for the Cone Zone and Be Work Zone Alert.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.

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