State Route 37 Pavement Project
Caltrans will continue Westbound SR-37 work this Friday, April 26 at 9:00 P.M. During the 55-hour weekend full highway closures, Caltrans will continue major pavement repair work on Westbound following two weekends of Eastbound SR-37 between Solano and Sonoma counties. One traffic direction on SR-37 will be worked on at a time. Detours will be in effect. All work is weather dependent.
Media Resources
Additional project resources including downloadable maps, image galleries, and video clips can be found on the media resources page.
Nighttime Full Closure of Westbound SR-37 between Mare Island (SR-37, Vallejo) and Sears Point (SR-121, Sonoma)
Scheduled for Thursday, May 2, 2024, to Friday May 3, 2024 From 9:00 P.M. to 4:00 A.M.
Caltrans has scheduled a nighttime full closure of Westbound State Route 37 between SR-29 in Vallejo and SR-121 in Sonoma County for Thursday night, May 2, between 9:00 P.M. and Friday morning, 4:00 A.M. to finish remaining Striping on Westbound SR-37. Due to unfavorable weather and high winds during the weekend closure some of the work had to be rescheduled to tonight, Thursday May 2. Caltrans will be completing the striping of the newly paved State Route 37 between Mare Island and Sears Point. To ensure the safety of workers and motorists, Caltrans will need to fully close Westbound lanes to safely complete the work. Detours will be set in place beginning at 9:00 P.M. Caltrans Thanks you for your patience.
If you have a question or want to share a concern about the project, please call theSR-37Pave Project Hotline (510) 286-0319.
Westbound State Route 37 Detour
- Motorists traveling westbound on SR-37 will need to exit right onto northbound SR-29 (Sonoma Blvd) in Vallejo
- Continue on NB SR-29 (Broadway) in American Canyon to SR-29/SR-12
- Turn left and continue on SR-12/SR-121 (Carneros Hwy/Fremont Drive)
- Turn left on SR-121 (Arnold Drive)
- Make a right back on WB SR-37.
Eastbound 55hr Full Closure and Paving Work is Currently Postponed. More Information to Follow.
Caltrans has postponed the closure of eastbound State Route 37 (SR-37) on two consecutive weekends. Due to weather, the SR-37 Paving project scheduled to start Friday May 3 until Monday, May 6 will need to be rescheduled. During the 55-hour weekend full highway closures, Caltrans performs major pavement repair and maintenance work on eastbound SR-37 between Solano and Sonoma counties. One traffic direction on SR-37 is worked on at a time. Detours are in effect. All work is weather dependent. More information to follow.
If you have a question or want to share a concern about the project, please call the SR-37 Pave Project Hotline (510) 286-0319.
Eastbound State Route 37 Detour
- Motorists traveling eastbound on SR-37 will need to exit left onto northbound SR-121 in Sonoma
- Make a right on SR-12/SR-121(Carneros Hwy) and continue
- Right on SR-12/SR-29
- Enter left for the connector loop Off-ramp back to EB SR-37
Why The Work is Needed
These full weekend closures are necessary for worker and public safety. Caltrans will perform major pavement repair on the traffic lanes in both the eastbound and westbound directions of SR-37. The roadway has become worn and in need of repairs due to of high traffic use.
Closing SR-37 During Weekends is a Safer Alternative to 30 Days of Nightly Closures for Workers' and Motorists' Safety
These closures will allow for asphalt pavement in eastbound and westbound traffic lanes to be replaced. These closures will shorten the duration of the project by 30 nights providing improved safety and better ride quality to the public.
Contact Information
If you have a question or want to share a concern about the project, please call the 37 Pave Project Hotline (510) 286-0319. The hotline has been set up for the traveling public and residents living in Marin, Sonoma, Napa and Solano Counties to share any questions or concerns and learn about the most up to date information about the project.