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

Schedule: Wednesday, Oct. 15 through Friday, Oct. 17

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

The on-ramp from Harbor Drive onto Eastbound SR-37 tentatively will be closed Wednesday, Oct. 15 through Friday, Oct. 17 between 5 a.m. and 10 a.m. for guardrail repair.

A partial ramp closure from Southbound US-101 to Eastbound SR-37 along with EB-37 to Marsh Drive off-ramp may be closed between 8 p.m. and 6 a.m. during those same days.

Detour for Harbor on-ramp
Traffic should head west on Harbor Drive to Atherton Avenue and enter Westbound SR-37. Drive to the next exit (Hanna Ranch Road), exit the freeway, and use the access to enter Eastbound SR-37 from that location.

Lane closures on Eastbound and Westbound SR-37 will continue from Wednesday, Oct. 15 through Friday, Oct. 17.

One lane is scheduled to be closed on Eastbound SR-37 from between 4 a.m. and 1 p.m. each of those days.

One lane is scheduled to be closed on Westbound SR-37 from between 9 a.m. and 5 p.m. each of those days.

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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