County of Sonoma, California

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Road Closures

Road Closures & Restrictions (Unincorporated Areas)


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10 Current Road Closures

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10 Road Closures
Road NameLocationStatusDescription
Road NameLocationStatusDescription
Chalk Hill RoadWindsorOne LaneJuly 27 - 30, Shoulder repair on Chalk Hill Road and fog sealing resent asphalt repair work. Expect slight delays
Geysers RoadCloverdaleOne LaneJuly 20-23, Repairing pile wall on Geysers Road. One lane traffic control, please expect slight delays
Hwy 1Fort RossOne LaneJuly 6 Caltrans will begin construction to replace a culvert. A traffic signal for one-way traffic control on State Route 1 north of Jenner, about 2 miles south of Fort Ross. One-way traffic control will be in effect for approximately 3 months
Hwy 12Boyes Hot SpringsOne LaneHighway 12 Improvements, Monday - Friday from 7am to 6pm. PG&E will be working at same site Monday-Friday, 7pm to 6am. Two-way traffic control with lane shifts. Expect delays up to 15 minutes
Old Duncans GradeCazaderoClosedOld Duncans Grade, between Austin Creek Rd and Cazadero Hwy, is closed due to accident damage to the bridge. Use alternate routes.
Old Monte Rio RdMonte RioClosedOld Monte Rio Rd, between Sunny Dr and Cnopius Rd, is closed due to a landslide. Alternate routes are required.
Pressley RoadCotatiOne LaneJuly 27-30, Grinding and patching along Pressley Road. Expect slight delays
Roberts RoadCotatiOne LaneJuly 27 - 30, Grinding and patching along Roberts Road. Expect slight delays
Us 101PetalumaClosedCaltrans will close northbound US Route 101 south of the Petaluma River Bridge on Monday night, July 20, from 11 p.m. to 5 a.m. This closure is necessary to complete a concrete pour for the new bridge
Westside RoadWindsorOne LaneStarting June 11 crews will be replacing a failed 6 foot cross culvert that runs under the length of the roadway. There will delays up to 30 minutes. Please use alternative route

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