Schedule: Monday, Oct. 21 to Thursday, Oct. 24 from 9 p.m. to 5 a.m.
Marin County — Caltrans is scheduled to continue exploratory drilling on the Novato Creek Bridge Replacement project on State Route 37 (SR-37) in October. Drilling is required to determine the replacement bridge’s foundation requirements.
A full closure of Eastbound SR-37 is scheduled from Monday, Oct. 21 to Thursday, Oct. 24 from 9 p.m. until 5 a.m. each day.
Caltrans will activate Changeable Message Signs (CMS) to notify the public ahead of time.
Detour for Eastbound SR-37 full closure
Drivers should take the US-101 off-ramp at Atherton Avenue Take a right onto Atherton Avenue and follow Atherton until you re-enter SR-37 at Black Point. 
The Novato Creek Bridge Replacement is scheduled to go into construction in 2027.
With this project, Caltrans proposes to reduce flooding from stormwater and adapt to projected 2130 sea-level rise for Novato Creek Bridge on SR-37 in Marin County.
For more information about the project, see bit.ly/4dmEAG2
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 Caltrans QuickMap: http://quickmap.dot.ca.gov/
For 24/7 traffic updates, follow 511.org: https://x.com/511SFBay
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