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Sonoma Public Infrastructure (formerly TPW)

Roads Division
County Of Sonoma › Development Services › Sonoma Public Infrastructure (formerly TPW) › Divisions › Roads › Data and Resources › Interactive Maps
Roads Division

Interactive Maps

Transportation and Public Works is now Sonoma Public Infrastructure - Website updates coming soon!

  • Adopt-a-Road Program Map

    Map showing roads adopted by organizations, corporations, groups and individuals who voluntarily maintain and enhance Sonoma County's roadsides.

  • County Roads Functional Classification Map

    Sonoma County roads symbolized by Functional Classification, as designated by the State of California.

  • County-Maintained Bridges Map

    Bridges, culverts, storm drains, and various other structures found on Sonoma County roads.

  • County-Maintained Roads by Supervisor District Map

    Sonoma County Road Categories, as designated by the Sonoma County Board of Supervisors in conjunction with the Department of Transportation & Public Works.

  • Municipal Stormwater & Drainage Map

    Displays storm water destination, and related drainage features, such as streams, open channels, storm drain systems, and culverts.

  • Parking Restrictions Map

    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 Map

    Pavement condition on Sonoma County roads, as indicated by periodic inspection ratings.

  • Pavement Cut Moratorium Map

    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 Project History Map

    Paving and other road surfacing treatment projects done on Sonoma County roads.

  • Planned Paving Projects Map

    Paving and other road surfacing treatment projects planned during the current and future fiscal years for Sonoma County roads.

  • Postmile System Map

    Displays significant locations along County-maintained roads that have been assigned a postmile. Features include bridges, intersections, culverts, and changes in jurisdiction.

  • Road Categories Map

    Sonoma County Road Categories, as designated by the Sonoma County Board of Supervisors in conjunction with the Department of Transportation & Public Works.

  • Road Closures and Delays

    Map of current road closures in Sonoma County showing their location, status and description.

  • Road Maintenance Facility Assignment Map

    County-maintained roads symbolized by their road maintenance facility designation. NOTE: Roads that are within city limits, state highways, or private property do not belong to the County-maintained road system.

  • Speed Limits Map

    Speed limits and speed surveys on Sonoma County roads.

  • Street & Traffic Lighting Inventory Map

    Traffic Lighting and Street Lighting for County of Sonoma - street lights, flashing beacons, speed radar feedback signs, etc.

  • Traffic Volume Map

    Traffic volume on Sonoma County roads. Features include vehicle counts, taken at point locations, and average volume along linear street sections, derived from vehicle counts.

  • Vehicle Restrictions Map

    Vehicle (length, height, weight) restrictions on county-maintained roads, parking restrictions and seasonally closed roads at summer crossing bridges.

Accessibility Statement

Sonoma Public Infrastructure is committed to ensuring the interactive mapping applications are accessible to all users. The website undergoes review and redesign as necessary to ensure that they meet and/or exceed the requirements of Section 508 of the Rehabilitation Act of 1973.

Should gaining access to information on these websites be hindered, please submit a Sonoma Public Infrastructure Inquiry or call us at (707)565-2550 and assistance shall be provided to meet your standards.