SR37 Corridor Projects

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Detour map.

What's New

Caltrans in coordination with Sonoma-Marin Area Rail Transit (SMART) has scheduled a closure of State Route 37 just east of State Route 121 from Saturday, May 20, at 3:00 AM, until Sunday, May 21, at 11:00 AM, to allow SMART to repair a railroad crossing on the highway. Visit the Route 37 Closure for SMART Train Track Repair project page for additional information.

CTC Meeting on May 17. Commission Meeting will discuss and make a decision on proposed toll lanes on State Route 37. Visit the SR 37 Project Meetings & Events for meeting information.

See all State Route 37 Meetings and Events

State Route 37 The Big Picture Button - A deep dive into State Route 37 Corridor History and the challenges it currently faces

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