Sonoma Public Infrastructure (formerly TPW)
Transportation and Public Works is now Sonoma Public Infrastructure - Website updates coming soon!
Mission & Vision
Our Mission: to plan, build, manage, and maintain Sonoma County's investment in quality services and infrastructure.
Our Vision: Leading the way to a safe and sustainable community through stewardship and innovation.
Divisions
Airport
The Airport Division operates the Charles M. Schulz Sonoma County Airport, located North of Santa Rosa, and connects customers to cities in Alaska, the lower 48 states, Hawaii, Canada, and Mexico.
Integrated Waste
The Integrated Waste Division owns the Sonoma County Central Landfill, which houses facilities for recycling, material reuse and natural gas and electricity generation. It owns five refuse transfer stations, oversees the regulation of two commercial hauling companies and maintains closed landfills.
- For disposal inquiries please contact (707) 795-1693.
Roads
The Roads Division is responsible for the construction, operation, and maintenance of the County-Maintained public road system, and administers numerous capital paving and road safety improvement projects every year.
Transit
The Transit Division administers Sonoma County Transit, Sonoma County's own public transportation system. This state-of-the-art fleet serves numerous locations across Sonoma County.
Water Systems
Water Systems administers service to four small districts: Fitch Mountain, Freestone, Jenner, and Salmon Creek.
Board of Supervisors authorizes repair of Moscow Road due to risk of failure following multiple major storm events
The Sonoma County Board of Supervisors today authorized the Department of Public Infrastructure to move forward with permanent repairs to storm-damaged sites on Moscow Road in west Sonoma County. A total of three storm sites from 2019 and 2023 are at risk of failure and could isolate more than 250 residents. Permanent repair of all sites is expected to begin this summer.