Map showing roads adopted by organizations, corporations, groups and individuals who voluntarily maintain and enhance Sonoma County's roadsides.
Sonoma County roads symbolized by Functional Classification, as designated by the State of California.
Bridges, culverts, storm drains, and various other structures found on Sonoma County roads.
Sonoma County Road Categories, as designated by the Sonoma County Board of Supervisors in conjunction with the Department of Transportation & Public Works.
Displays storm water destination, and related drainage features, such as streams, open channels, storm drain systems, and culverts.
Parking-restricted areas on County-Maintained roads. Features include No Parking Zones, Tow Away Zones, Disabled Parking Zones, Loading Zones, and various other types of parking-restricted areas.
Pavement condition on Sonoma County roads, as indicated by periodic inspection ratings.
Pavement cuts, by a utility company or any other party, are prohibited on any road that has been repaved within the last five (5) calendar years.
Paving and other road surfacing treatment projects done on Sonoma County roads.
Paving and other road surfacing treatment projects planned during the 2020-2021 fiscal years for Sonoma County roads.
Lobby Hours temporarily reduced as of 8/30/21 until further notice
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