• Airplane
  • Grade Master
  • Transit Bus
  • Landfill - Survey Sight 1
  • Geyser geothermal plant
  • TPW carousel3
  • Landfill - Rock Crushing

Transportation & Public Works

The Transportation and Public Works Department (TPW) administers critical services and infrastructure, including roads and public transit, an airport, multiple waste disposal sites, water systems, as well as regulation of air quality and emissions.

  • April 10, 2015
    Public meeting notice for the Airport Boulevard at Highway 101 Interchange Landscaping Project. Meeting will be held at the Permit and Resource Management Department Hearing Room (at the County Center in Santa Rosa), on May 12 at 6:00 PM.
  • April 6, 2015
    Road Maintenance Update for the week of April 6 through 10, 2015.
  • 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 operates the Sonoma County Central Landfill, which houses facilities for recycling, material reuse, natural gas and electrical generation, and composting of organic materials. It also operates an additional five (5) refuse transfer stations located in Sonoma County, and oversees the regulation of two (2) commercial hauling companies.


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
Follow Us

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

Road Construction

Construction Standards

Construction Standards for County Roads

Standard plans for construction of roads and related structures.


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