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Current Road Projects

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  • This fall we will construct ADA improvements in the town of Graton. We will remove and upgrade sidewalks and other access features to make them ADA compliant. In some cases, we may remove only segments of sidewalks or ramps to make the necessary improvements.

  • The project is located on Highway 101 at Airport Boulevard in Sonoma County between the cities of Santa Rosa and Windsor near the Sonoma County Airport. The project proposes to construct landscape improvements through an encroachment permit issued by Caltrans as a follow up to the Highway 101 North/Airport Boulevard interchange and sound walls project.
  • Consolidation of existing cross-culverts at postmile 10.81 and postmile 10.82 with one larger capacity pipe at postmile 10.82, as well as removal and backfill at postmile 10.81 location.

  • Road Commissioner project declaration for bridge repairs on Summerhome Park Road (bridge ID 20C0377) and Neeley Road (bridge ID 20C0356), as well as an asphalt overlay of an 1,800 section of Woolsey Road extending south from the intersection with River Road.

  • This project consists of widening of the roadway, as well as construction of curb and gutter, sidewalks, pedestrian lighting, traffic striping and traffic signals, other improvements as shown on the plans.
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Contact Information

Office Hours
Monday – Friday
8:00 AM – 5:00 PM
Office Location
La Plaza B
2300 County Center Drive
Suite B 100
Santa Rosa, CA 95403
38.462023, -122.725381
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Road Commissioner Project Declarations

See Road Commissioner Project Declarations


See listing of road projects declared by the Sonoma County Road Commissioner

Standard Plans

Construction Standards

Construction Standards for County Roads


Standard plans for construction of roads and related structures.


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