Sonoma Valley Sun


When to avoid Hwy. 37

Posted on May 16, 2023 by Sonoma Valley Sun

Highway 37 will be completely closed just east of 121 on Saturday, May 20, at 3am, until Sunday, May 21, at 11am. That’s about 36 hours of long detours in both directions, so Caltrans can repair a railroad crossing. Motorists heading westbound will take Highway 29 to Highway 12, then use Highway 121/Arnold Drive to Highway 37.

Cars heading eastbound will take Highway 121/Arnold Drive to Highway 12, then Highway 29 to Highway 37. Westbound drivers may also continue on Highway 12 to Interstate 80.

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