Schedule: Monday, April 21; Thursday and Friday, April 24 and 25
Marin County — The Marin-Sonoma Narrows B-7 construction project continues in April with k-rail replacement and a traffic shift, which requires ramp and lane closures on Northbound US-101 in Novato.
The San Antonio Road off-ramp is scheduled to be closed on the morning of Monday, April 21 between 4 a.m. and 6 a.m. so crews can remove K-rail on Northbound US-101.
The San Antonio on- and off-ramps on Northbound US-101 are scheduled to be closed on Thursday, April 24 and Friday, April 25 between 10 p.m. and 6 a.m. each morning for a traffic shift along the ramps. One lane along US-101 is scheduled to be closed during the same days and hours.
All work depends on weather. Daytime access will be available for drivers.
San Antonio on-ramp closure
- Drivers should take Southbound US-101 to Atherton Avenue and take the Atherton Avenue on-ramp to get back on Northbound US-101.
San Antonio off-ramp closure
- Drivers should exit at Petaluma Boulevard South/Kastania Road, enter US-101 southbound, and exit at San Antonio Road.
This is the last remaining High Occupancy Vehicle (HOV) lane construction project as part of the 16-mile US-101 Marin-Sonoma Narrows (MSN) program. This project will complete and allow continuous HOV lanes on US-101 from Sausalito in Marin County to Windsor in Sonoma County. HOV lanes are scheduled to be open to use in the summer of 2025.
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.
| CleanCA.com | CleanWaterCA | #BeWorkZoneAlert | X | Facebook | YouTube |
###