Caltrans paving project prompts weekend closures of Highway 37

Highway 37
John Huseby, Caltrans

Caltrans will close Highway 37 in one direction for four consecutive weekends, beginning Friday evening, April 12, to accommodate a long-planned project to repave the nearly 12-mile segment between Highway 29 (Sonoma Boulevard) in Vallejo and the junction with Highway 121 near Sears Point in Sonoma County. 

Due in large part to high traffic volumes, existing pavement along this stretch of the highway has deteriorated to the point that replacement of the asphalt is necessary.

Highway 37 will be closed in the westbound direction only for the first two weekends of the project, with closures beginning at 9 p.m. on April 12 and April 19 and the route re-opening to westbound traffic by 4 a.m. on Monday, April 15; and again by 4 a.m. on Monday, April 22.

Pavement crews will then shift to the opposite lane, with Highway 37 closed in the eastbound direction only from 10 p.m. on Friday, April 26, until 5 a.m. on Monday, April 29; and again from 10 p.m. on Friday, May 3, until 5 a.m. on Monday, May 6. Because the work is weather-dependent, Caltrans identified the weekend of May 10-13 as a contingency in case the scheduled work is delayed or postponed.

Caltrans opted for four weekend closures of Highway 37 over an alternate plan that would have required more than 40 closures of the route during late night and early morning hours. Caltrans’ construction staff estimates some 1,000 truckloads of asphalt will be delivered to locations along the Highway 37 corridor over the four-week course of the project.

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