Overnight Full Highway Closures – Start Friday, October 20 at 8:00 PM
Daytime Lane Closures-Start Saturday, October 21 at 8:00 AM
Two Consecutive Nights and Days
SONOMA COUNTY – As part of a pavement and concrete slab replacement project, Caltrans has scheduled overnight full weekend highway closures and daytime weekend lane closures on eastbound State Route 12 (SR-12) in Santa Rosa. The project limits are on eastbound SR-12 between Merced Ave and Dutton Avenue.
SR-12 Full Highway Closures-Three Weekend Nights
Overnight full highway closures on eastbound SR-12 are not continuous and are scheduled to be in effect starting Friday, October 20 at 8:00 PM until 8:00 AM on Saturday, October 21.
A second weekend night of full highway closure on eastbound SR-12 is also scheduled on Saturday, October 21 at 8:00 PM until 8:00 AM on Sunday, October 22.
A third weekend night of full highway closure on eastbound SR-12 is also scheduled on Sunday, October 22 at 8:00 PM until 5:00 AM on Monday, October 23.
SR-12 Lane Closures-Two Weekend Days
Daytime weekend lane closures are not continuous and will be in effect on Saturday, October 21 at 8:00 AM until 8:00 PM that same day.
A second weekend day of lane closures will be in effect on Sunday, October 22 at 8:00 AM until 8:00 PM that same day. These lane closures will also be in effect on eastbound SR-12 between Merced Avenue and Dutton Avenue in Santa Rosa.
During daytime shifts (8:00 AM. to 8:00 PM), one of the two traffic lanes on eastbound SR-12 will be closed. Motorists traveling on eastbound SR-12 between Merced Avenue and Dutton Avenue should prepare for significant delays or choose an alternate route.
The weekend closures are necessary for worker and public safety and will allow Caltrans to accelerate the demolition and reconstruction of concrete pavement slabs, which would take weeks or months to complete during typical overnight closures.
The slab replacement is part of a larger project to rehabilitate a three-mile stretch of SR-12 between Llano Road and Farmers Lane in Santa Rosa, which began in June 2023. Caltrans thanks motorists and bicyclists for their patience while we work to maintain our state's highways, bridges, and tunnels.