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Roads

Raul M. Rojas, Director, Public Works

View current ongoing road closures and lane restrictions

Our division, Roads, holds primary responsibility for maintaining most of the roads in the unincorporated areas of our county. The exceptions are state roads, city streets, and non-county maintained roads. To enable us to handle problems more efficiently, we've divided Marin County into two areas: West Marin and Urban Eastern Marin.

We work to serve the county's residents and visitors with the least inconvenience as possible. To that end, we often do our work during the late night/early morning hours so as to cause as little impedance to traffic flow as possible. Come rain or shine, our staff are out on the County roadways to ensure the right-of-ways remain open and safe for travel.

Questions and Complaints Service Center Contact Number
West Marin Nicasio Yard (415) 446-4421
Urban Eastern Marin Civic Center Yard (415) 473-7388
 
To Report a Blocked Roadway

Monday through Friday, 6:00AM - 5:00PM

West Marin
Urban East Marin

 
(415) 446-4421
(415) 473-7388
Weekends and Evenings   (415) 473-7513
 
To Report a Missing or Damaged Street Sign
Monday through Friday   (415) 446-4422

COUNTY-MAINTAINED ROAD CLOSURES & LANE RESTRICTIONS:
  • For immediate ROAD CLOSURES & UPDATES, please follow us on Twitter and Facebook.

    • Road Restrictions: Weight/Length Limits, Bus Restrictions, Oversize Loads, etc.

    Please be advised, it is unlawful for any person, firm or corporation to operate or cause to be operated any motor vehicle in excess of the limits/restrictions provided below:

    WEIGHT LIMITS

    Motor vehicles of a gross weight in excess of three tons are prohibited on Paradise Drive.

    Motor vehicles of a gross weight in excess of fourteen thousand pounds are prohibited on Via Escondida, between the boundary of the City of Novato and the southeasterly side of Calle Paseo.  For this weight limit the exemptions of California Vehicle Code Section 35714 do not apply.

    Motor vehicles of a gross weight in excess of fourteen thousand pounds are prohibited on Miller Creek Avenue.

    For more details see Marin County Code Sections 13.04.090, 13.04.100, and 13.04.110

    LENGTH LIMITS

    Motor vehicles in excess of thirty (30) feet are prohibited from travelling over the following streets and highways:

    1. Muir Woods Road Muir Woods National Monument entrance (milepost 1.52) east to Panoramic Highway.

    Motor vehicles in excess of thirty-six (36) feet are prohibited from travelling over the following streets and highways:

    1. Muir Woods Road and Franks Valley Road from Shoreline Highway east to Muir Woods National Monument entrance (milepost 1.52)
    2. Panoramic Highway
    3. Tennessee Valley Road
    4. Sequoia Valley Road
    5. Lucas Valley Road between West Gate Drive and Big Rock (Loma Alta Fire Road/Big Rock Trail)

    For more details see Marin County Code Section 13.06.010

    BUS RESTRICTIONS

    Tour/Commercial buses are prohibited from travelling over the following streets and highways:

    1. Montford Avenue
    2. Pacific Way
    3. Ross Drive
    4. Jean Street
    5. Laurel Way
    6. Poplar Street
    7. Pine Street
    8. Spruce Street
    9. Ash Street
    10. Maple Street
    11. Marin Avenue
    12. Edgewood Avenue
    13. Flamingo Avenue
    14. Almonte Boulevard, west of Miller Avenue
    15. Seacape Drive
    16. Enterprise Concourse
    17. Muir Beach Overlook

    For more details see Marin County Code Section 13.06.020

    OVERSIZE LOADS/VEHICLES TRANSPORTATION

    A vehicle or load that is oversized will need an approved Trip Transportation Permit which will define the route and requirements for movement on Marin County maintained roads.  Permit fees are listed on our forms page.

    A copy of the Trip Transportation Permit is available here. 

    There is also an Annual Trip Transportation Permit is available here.

    For more details see Marin County Code Section 13.08.020

    PROHIBITED VEHICLES AND TIRES

    No vehicle shall be moved or operated upon a county highway having corrugations on the periphery of the movable tracks on a track engine or tractor the propulsive power of which is not exerted through wheels resting upon the roadway but by means of a flexible band or chain.

    No tire on any vehicle shall have on its periphery any block, stud, flange, cleat, ridge, bead, or any protuberance of metal or wood which projects beyond the tread of the track surface of the tire.

    For more details see Marin County Code Section 13.08.010