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Transportation & Public Works

  • Published on November 16, 2015

    Press Release  On Tuesday, November 10th, the Sonoma County Board of Supervisors approved new one-time funding that will help build approximately 100 miles of new roads. The Board added $13.5 million of funding, which brings the total general fund contribution to roads to a record $25 million. New roads projects will be selected in 2016 and built in 2017. The Board also reinforced their commitment to stable, ongoing funding by indexing the annual general fund contribution toward road repair by up to 2% annually.

  • Published on November 16, 2015

    This week crews will be responding to a downed tree after the weekend's high winds, removing the Asti Summer Crossing, crack sealing and drainage work, along with some culvert cleaning in the Cotati area, and other services.

  • More News

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.


Air Quality

The Northern Sonoma County Air Pollution Control District (NSCAPCD) is one of 35 California air districts established to regulate the emissions of air pollution that can be detrimental to the health, safety, and welfare of the public.


The Airport Division operates the Charles M. Schulz Sonoma County Airport, located North of Santa Rosa, and connecting 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 electrical 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.


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.


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.

Contact Information

Transportation & Public Works
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
38.462006, -122.725384
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County Airport

Charles M. Schulz - Sonoma County Airport

Located in the heart of Northern California's spectacular Wine Country

Public Transit

Sonoma County Transit

Public transit serving multiple locations throughout Sonoma County

Pavement Preservation

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Sonoma County Pavement Preservation Program

Stewardship of the County-maintained road system.


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