Sonoma Public Infrastructure
Sonoma Public Infrastructure's offices are now located at 400 Aviation Blvd, Suite 100, Santa Rosa, CA 95403.
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 approves list of SB1 infrastructure projects for 2025-26 fiscal year
The Sonoma County Board of Supervisors today approved a list of local streets and road projects to be completed during the 2025-26 construction seasons using more than $14.5 million in anticipated revenue from SB1, the Road Repair and Accountability Act. The state’s SB1 Road Maintenance and Rehabilitation Account is derived primarily from per-gallon fuel excise taxes. All SB1 funds go to infrastructure repair and improvement projects, in alignment with the Resilient Infrastructure pillar of Sonoma County’s Five-year Strategic Plan.
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