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Sonoma County Gazette
Sonoma County Road Crews repair road surface

54 Miles of Road Construction begins in Sonoma County

Jul 14, 2017


On Monday the 17th July, construction is set to begin on 54 miles of major roads in unincorporated Sonoma County. Improvements range from rebuilding roads to treatments that keep good roads in a good condition. This work will enhance a total of 255,515 average daily vehicle trips, however the construction will have unavoidable traffic impacts.

“The investments we make in our roads improve the daily lives of Sonoma County residents,” stated Board Chairwoman Shirlee Zane. “We will minimize traffic impacts to the greatest extent possible, while still working efficiently to protect our tax payer’s investment. We are grateful to neighbors, commuters, drivers, bicyclists and pedestrians for their patience through construction.”

Below is a summary of which roads will be under construction, and the type of work that can be expected. For details on which sections of road will be affected, traffic impacts, and weekly schedule updates please visit

Fog Seal – a light application of asphalt emulsion to preserve good pavement.

  • Adobe Road
  • D Street
  • Napa Road
  • Old Redwood Highway
  • Porter Creek Road

Slurry Seal – a mixture of asphalt emulsion and gravel that rejuvenates good pavement.

  • Adobe Road
  • Lakeville Road
  • Mark West Springs Road
  • Occidental Road
  • Petaluma Boulevard North
  • River Road (near Forestville)

Chip Seal – layers of asphalt emulsion and fine gravel to re-surface decent pavement.

  • Dutcher Creek Road
  • Geysers Road
  • Ludwig Avenue
  • Lytton Springs Road
  • Mill Station Road
  • Watertrough Road

Remove & Replace - existing surface is removed and replaced with new asphalt.

  • Boyes Boulevard
  • Lovall Valley Road

Asphalt Overlay – a complete asphalt road surface laid over repaired roads.

  • Adobe Road
  • Brooks Avenue
  • Bucks Road
  • Crocker Road
  • El Dorado Drive
  • Healdsburg Avenue
  • River Road (near Cloverdale)
  • River Road (near Cloverdale)
  • Stony Point Road

Cold In Place Recycling – remove old asphalt, mix and place it back on the road, then overlay with new asphalt. Usually used on distressed roads.

5th Street West

  • Arnold Drive

Full Depth Reclamation - pulverize the existing pavement and road base, mix in cement, compact the road base, and place a new asphalt surface. Used on highly distressed roads.

  • Cazadero Highway

Due to the unprecedented storms this winter, and the need to coordinate with projects by other Agencies, the 2017 program has been divided into phases. The 54 miles under construction this summer are part of a 97 mile program approved by the Sonoma County Board of Supervisors last year.

For more information, including which sections of road will be affected, traffic impacts, and weekly schedule updates please visit


Jul 27, 2017
They've been working on Stony Point for at least 1 1/2 years, how much longer now until it is done?
- Steve Irving

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