California Department of Transportation

10/31/2025 | Press release | Distributed by Public on 10/31/2025 18:31

Day, Night Ramp, Lane Closures for Westbound, Eastbound SR-37 Capital Preventive Maintenance Project in Marin County

Day, Night Ramp, Lane Closures for Westbound, Eastbound SR-37 Capital Preventive Maintenance Project in Marin County

Published: Oct 31, 2025

Marin County - Caltrans will continue its Capital Preventive Maintenance project in November on Westbound and Eastbound State Route 37 (SR-37) in between Atherton Avenue and the Petaluma River Bridge in Novato for paving work.

There is scheduled paving work on Westbound and Eastbound SR-37 from Monday, Nov. 3 to Friday, Nov. 7 from 8 p.m. until about 5 a.m. the next mornings.

There will be intermittent ramp closures (depending on where the paving occurs) for the US-101 interchange near SR-37, the Hanna Ranch Road exit and the Atherton Avenue exit along SR-37.

There will be tentative daytime closures for guard rail installation on Westbound and Eastbound SR-37 from Monday, Nov. 3 through Friday, Nov. 7. Eastbound work would occur between 7 a.m. and 1 p.m., and Westbound work would occur between 9 a.m. and 3 p.m. each day.

All construction Is weather dependent.

This capital maintenance pavement rehabilitation project involves paving and median barrier work in Novato. The project will grind and re-pave the roadway between the Ignacio overhead to the Petaluma River Bridge - a stretch of about three miles.

Please drive with caution. Slow for the Cone Zone and Be Work Zone Alert. Caltrans thanks motorists for their patience while we work to maintain our state's highways, bridges, and tunnels.

For real-time traffic, click on CaltransQuickMap: https://http://quickmap.dot.ca.gov/ For 24/7 traffic updates, follow 511.org: https://twitter.com/511SFBay

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California Department of Transportation published this content on October 31, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on November 01, 2025 at 00:31 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]