Transportation and Public Works is now Sonoma Public Infrastructure - Website updates coming soon!
What We Do
Sonoma County's Pavement Preservation Program is an ongoing effort to improve the quality of Sonoma County county roads by administering large-scale pavement treatment projects. TPW uses a long-term, network-level management approach designed to utilize limited funding as efficiently as possible.
Sonoma County Road Maintenance crews work every day to keep roads safe and passable. Maintenance of the Sonoma County road system entails a vast array of work, including repair of damaged pavement, cleaning and repair of road signs, removal of roadside vegetation, repair of slip outs and landslides, as well as responding to public requests.
Engineering, construction, and maintenance of bridges on County roads is administered by the Roads Division of the Department of Transportation & Public Works.
Engineering, construction, and maintenance of street lights, signs, traffic signals, pavement markings, and other devices used to regulate traffic and reduce danger on the road.
2020-21 Pavement Preservation Program
On May 21, 2019, the Sonoma County Board of Supervisors approved the 2020-21 Pavement Preservation Program, kicking off construction on 51 miles of roads over this year and 2021.
- See maps for planned and completed paving work in each District.
by Supervisor District
- District 1 (PDF, 3.2 MB)
- District 2 (PDF, 3.1 MB)
- District 3 (PDF, 3.1 MB)
- District 4 (PDF, 3.2 MB)
- District 5 (PDF, 3.2 MB)
Long-Term Road Plan
In fall 2014, the Board of Supervisors adopted the Long-Term Road Plan, laying a path for improving roads that are most traveled and vital to local communities, economic development, agriculture, recreation and tourism.
The Board has identified a funding plan that would allow us to reach our initial goal of improving over half of our roads in the County - 850 miles.
- Long-Term Road Plan 2014(PDF: 5.86 MB )
- Fact Sheet: Long-Term Road Plan 2014(PDF: 1.16 MB )
- Presentation: Sonoma County Roads(PDF: 3.03 MB )
Transportation and Public Works launches traffic safety education campaign
The County of Sonoma Department of Transportation and Public Works (TPW) today announced the rollout of a second series of warning signs as part of its traffic safety education program in response to road fatalities and concerns about unsafe and aggressive driving.
SMART launches on demand microtransit shuttle connecting the train to the Sonoma County Airport (STS)
Sonoma County announces 2023 road paving season, encourages drivers to plan ahead, go slow and use detours
Main Street bridge in Monte Rio closed temporarily to ensure public safety following winter storm damage