County of Sonoma, California

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Road Closures

Road Closures & Restrictions (Unincorporated Areas)


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9 Current Road Closures

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9 Road Closures
Road NameLocationStatusDescription
Arnold DriveGlen EllenClosedSunday, October 11th between 10:00am and 6:00pm the Glen Ellen Village Fair will be taking place. Arnold Drive will be closed between Warm Springs Road and London Ranch Road - please use alternative route
Arnold DriveGlen EllenOne LaneArnold Drive between Hwy 12 and Sonoma Creek Bridge, 7 AM to 5 PM Monday - Friday, Pavement repairs. Expect delays up to 15 minutes. Please use alternative routes.
Highway 1Fort RossResident OnlyJuly 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.
Highway 12Boyes Hot SpringsOne LaneHighway 12 between Agua Caliente Road to Boyes Blvd - 7:00 AM to 4:00 PM, Monday - Friday. Expect delays up to 5 minutes. Please use alternative routes.
Highway 128CloverdaleClosedOne lane signal on Highway 128 in order to place piles for a retaining wall project approx 1.4 miles west of the three-way intersection of N. Cloverdale Boulevard, N. Redwood Hwy, and Oat Valley Road, approx 2.4 mile
Jewett RoadPetalumaClosedOctober 5 - October 15, Culvert crews will be replacing a culvert on Jewett Road. Roadway will be closed from 7:30am to 4:30pm. Please use alternative route
Old Duncans GradeCazaderoClosedOld Duncans Grade, between Austin Creek Road and Cazadero Hwy, is closed due to accident damage to the bridge. Use alternate routes.
Old Monte Rio RoadMonte RioClosedOld Monte Rio Road, between Sunny Drive and Cnopius Road, is closed due to a landslide. Alternate routes are required.
Watmaugh RoadSonomaOne LaneSeptember 24-October 8, County crews will be cleaning a box culvert on Watmaugh Road between Hwy 116 and Arnold Drive, please expect delays up to 15 minutes, please use alternative route.

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