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Sonoma County Roads UPDATE 3-14-16

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Sonoma County Roads UPDATE 3-14-16

It was a very long and busy weekend for our road crews dealing with flooding, down trees and slides. The biggest issue was a rock slide on Annapolis Rd Saturday that closed the road 2 ½ miles in from State Hwy 1. The crew up there worked through the weekend to break up two large boulders – one measuring 10’x14’, enough to open the road by this morning school commute. The location of the slide was on a narrow section of road at a blind curve so traffic controls were staffed overnight once one lane was opened for traffic. The road was completely open at 6 pm last night. That slide was one of five on Annapolis Rd over the weekend, with an additional slide on Stewarts Point Skaggs Springs Rd that the crew responded to. 

Elsewhere, crews responded Saturday to a failed culvert and washout on Geysers Rd, 1 ½ mile from Hwy 128 on the Healdsburg side. The failure washed out half of one lane completely and the road currently is open to one lane traffic. Also on Saturday crews responded to a large Oak tree that fell away from the road on Warrington Rd off Petaluma Hill Rd, but damaged a section of road shoulder. Crews will be making repairs today at that location. Friday night and Saturday crews responded to an ongoing small slide on a narrow section of Westside Rd near Hacienda. On King Ridge Rd, a portion of the road about 3 miles up from Cazadero began slipping – crews filled several large cracks in the pavement to prevent rain water from further damaging the road base. Last night crews from Cotati were called for a large down tree on Gold Ridge Rd near Bodega Hwy, and the Healdsburg crew was out most of the night clearing a large rock slide on Calistoga Rd near Gates Rd. Calistoga Rd is open for the morning commute. 

Here is a current list of road closures around the county. The Russian river is forecast to crest at around 25 feet between 1 and 2 pm today.

Closed due to flooding:

Green Valley Rd between Ross Rd and Sullivan, and north of Sullivan at the S turns at Green Valley Creek.

Mark West Station Rd at Starr Rd

Sanford Rd, between Occidental Rd and Hall Rd

Wohler Rd, at Mark West Creek just off River Rd

Trenton Rd, between River Rd and Laguna Rd

Valley Ford Rd at State Hwy 1

Roads narrowed to one lane traffic:

Geysers Rd, about 1 ½ mile from Red Winery Rd at County Post Mile 12.27 due to a washout.

King Ridge Rd, approximately 1 mile from Cazadero Hwy due to a slide

St. Helena Rd at West Summit Trail due to a down tree and stump eroding pavement and shoulder





Rob Silva, Road Maintenance Division Manager

 Sonoma County Transportation and Public Works Department