Ahead of an extraordinary El Niño, a troubled highway bordering San Francisco Bay is closing for a weekend this month so that Caltrans can shore up the roadway.
A section of state Route 37 between Vallejo and rural Sonoma County is closing for 55 hours starting late Friday, Oct. 23, through early Monday, Oct. 25. An ongoing effort to widen the highway is now set aside for emergency repairs, which include elevating over 1,000 feet of roadway 3 feet higher.
Caltrans designed a detour to circumvent the closure between Mare Island in Vallejo and Sears Point near the Sonoma Raceway. What can take about 10 minutes with no traffic could quadruple in time over the weekend for the roughly 40,000 daily drivers…