County of Sonoma, California

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Road Closures

Road Closures & Restrictions (Unincorporated Areas)


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13 Current Road Closures

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13 Road Closures
Road NameLocationStatusDescription
Road NameLocationStatusDescription
Adobe RoadPetalumaOne LaneOctober 17-21, Adobe Road at East Washington Road - Traffic signal construction, expect delays up to 20 minutes. Please use alternative route if possible.
Austin Creek RoadCazaderoClosedAustin Creek Road is closed south of Kramer Road
Hwy 1Bodega BayOne LaneStarting May 10th, Caltrans is beginning a paving and repair project on State Route 1 that begins at the Marin County/Sonoma County line and continues north to South Harbor Way. One-way reversible traffic control, Monday-Thursday 6am to 8pm.
Hwy 1Bodega BayOne LaneAugust 15-Caltrans will begin road repair on a section of Hwy 1 near Gleason Beach. Caltrans closed the southbound lane due to substantial erosion of this coastline road. Caltrans expects the Hwy to open back up to two lanes within 4-6 weeks.
Hwy 116GuernevilleOne LaneStarting July 20, Caltrans contractor will activate a temporary traffic signal system that is being installed for one-way reversible traffic control this will continue for approximately 3 months for construction of soldier pile wall.
King Ridge RoadCazaderoOne LaneKing Ridge Road approximately 1 mile from Cazadero Hwy has one lane traffic due to slide - please drive with care
Lakeville HwyPetalumaOne LaneStarting October 11, Monday - Thursday between 9:00am and 3:00pm, Crews will be on Lakeville Hwy pruning and removing eucalyptus trees. One lane traffic control, expect delays. Please use alternate route if possible
Old Duncans GradeCazaderoClosedOld Duncans Grade, between Austin Creek Road and Cazadero Hwy, is closed due to accident damage to the bridge. To cross Austin Creek, use alternate bridge - Cazadero Highway at Austin Creek Road, approximately 3 miles north.
Old Monte Rio RoadMonte RioClosedOld Monte Rio Road, between Sunny Drive and Cnopius Road, is closed due to a landslide. Alternate routes are required.
Old Redwood HwyCotatiClosedOld Redwood Highway between E. Cotati Ave and Page St will be closed for Construction from 7/25 to 10/14 between the hours of 9 am to 4 pm.Use alternate routes. Detour signs will be posted. Businesses will be open
Piner RoadSanta RosaClosedOctober 17-21 between 7:00am to 7:00pm - FDR preparation, Piner Road is closed. Please use alternative route
Scouts Camp RoadOccidentalClosedSeptember 19-October 20, Scout Camp Road will be closed. Bridge deck will be being replaced. Please use alternative route
St Helena RoadSanta RosaOne LaneSt. Helena Road is now down to one lane at West Summit Trail due to roadway erosion

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