County Of Sonoma › Development Services › Sonoma Public Infrastructure › Roads: Projects & Services

Roads: Projects & Services

close-up image of double yellow lines on a road

The Roads Division of Sonoma Public Infrastructure is responsible for the construction, operation, and maintenance of the County’s road system. We also manage road construction and other infrastructure improvement projects.

Jurisdiction

We own and maintain most public roads in unincorporated Sonoma County. This includes roads that are:

Publicly owned
Publicly accessible
Outside city limits
Not part of the State Highway System

We do not maintain state highways, city streets, or private roads.

Quick Links

SoCo Connect

Report non-emergency road issues—like potholes, broken signs, overgrown vegetation, clogged drains, or streetlight outages. The app is available 24/7 for residents, businesses, and visitors in unincorporated Sonoma County. You can also track the status of your request online. During business hours, you can also call our Road Maintenance team at 707-565-5100.

graphic of a map with marker

Maps: Road Closures

Stay informed with our road closures map, which helps residents, travelers, and contractors see where work is happening, avoid delays, and plan routes more efficiently.

Report Hazards & Dangerous Situations

Call 911 for urgent issues or immediate response, such as a tree blocking a road or flooding. For non-emeregency issues, you can use SoCo Connect or

During Business Hours: Call Road Maintenance at (707) 565-5100
After Hours: Call the Sheriff’s Office at (707) 565-2121

Immediate reporting helps crews respond quickly and keep roads safe.

Adopt-a-Road

Help keep Sonoma County beautiful by volunteering through the Community Roadside Clean-Up & Adopt-a-Road Program. Individuals, groups, and organizations can sign up to maintain and enhance roadways. To learn more, contact Public Infrastructure Traffic or review the program manual and map.

Bidding on Sonoma County Road Projects

How to Bid

Register Online – Create a free account in the Sonoma County Supplier Portal.
Get Documents – Download bidding documents at no cost.
Follow Instructions – Carefully review all requirements and submit before the posted deadline.
Submit Your Bid
- Preferred: Online through the Supplier Portal
- Alternative: Hand-deliver or mail a sealed bid

After Submission

The County opens all bids promptly after the deadline.
Bids are reviewed for responsiveness, and an Apparent Low Bidder is identified.
The Director of Public Infrastructure reviews and refers bids to the Board of Supervisors for possible award.
The review process is completed within 60 days of bid opening.

image of construction workings paving a road

Road Projects

Stay up to date on Sonoma County’s road improvement efforts. Explore Current Projects to see recently bid work, review Road Commissioner Declarations for emergency or urgent actions, and learn about Projects in Planning with detailed descriptions of upcoming improvements.

Roads: Current Projects Road Commissioner Declarations