Full and Partial Closures of Westbound State Route 12 in Santa Rosa
To Expedite Pavement Replacement
Closures from 8:00 PM, Friday, April 5, until 5:00 AM, Monday, April 8
Full Westbound closures at night; one lane open during the day
SANTA ROSA – As part of a paving and concrete slab replacement project, Caltrans will alternate partial and full closures of westbound State Route 12 (SR-12) in Santa Rosa between the Downtown, S. “E” Street exit and the Dutton Avenue exit between 8:00 PM, Friday, April 5, and 5:00 AM, Monday, April 8, 2024.
The closures will be divided into day and night shifts. During night closures, the westbound freeway between Downtown S. “E” Street and Dutton Avenue will be fully closed. During day closures, one westbound lane will be open, and one lane will be closed.
During night closures, motorists who wish to connect from westbound Route 12 to US Hwy 101 will be detoured. See maps below.
Eastbound Route 12 will not be affected.
During the night shifts (8:00 PM – 8:00 AM), the westbound direction of the freeway will be fully closed until 8:00 AM, except on Monday, April 8, when the closure ends at 5:00 AM. Detours will guide motorists around the closed portion of the freeway.
During the day shifts (8:00 AM – 8:00 PM), one of two lanes in the westbound direction will be closed. Motorists traveling westbound on SR-12 between Farmers Lane and Dutton Avenue should prepare for significant delays or choose an alternative route.
Caltrans chose to implement full nighttime and partial daytime freeway closures to accelerate the demolition and replacement of concrete slab work that may take up to a year if performed during typical nighttime lane closures. Also, full nighttime closures are safer for workers and motorists.
NIGHTTIME CLOSURES
FULL Nighttime Closures on Westbound Route 12
Friday, April 5 from 8:00 PM until 8:00 AM on Saturday, April 6.
Saturday, April 6, from 8:00 PM until 8:00 AM on Sunday, April 7.
Sunday, April 7, from 8:00 PM until 5:00 AM on Monday, April 8.
DAYTIMES CLOSURES
One Lane Closure on Westbound Route 12 (One of two lanes will be closed)
Saturday, April 6 from 8:00 AM until 8:00 PM
Sunday, April 7 from 8:00 AM until 8:00 PM
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
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