Over Legal Trucks Permits

These vehicles and loads exceed the maximum height, weight, width, and/or length, specified by state law. All oversized vehicles and loads traveling within Seattle must obtain a permit to operate. City law allows SDOT to issue these permits.

How to get an Oversized Truck Permit.

How much does it cost?

Over-Size Permit Fees: for trucks that exceed licensed dimensions

  • Over-width, over-height and/or over length $18.00 (single trip)
  • Over-width, over-height and/or over length $60.00 (thirty-day)
  • Over-width, over-height and/or over length $290.00 (annual)
  • Fleet Permits (for holders of two $290.00 annual oversize permits) $24.00 (annual)

Overweight Permit Fees for trucks whose gross weight exceeds license weight.

  • Short Term Permit (additional tonnage only) $24.00 (single trip)
  • Short Term Over Dimensional and Overweight $42.00 (single trip)
  • Annual Permits per gross weight range:
    0001 – 11,999 lbs. $360.00
    12,000 – 23,999lbs. $420.00
    24,000 – 35,999 lbs. $480.00
    36,000 – 47,999 lbs $540.00
    48,000 – 59,999 lbs. $600.00
    60,000 – 71,999 lbs. $660.00
    72,000 – 79,999 lbs. $720.00

PLEASE NOTE: For ANNUAL permits, if vehicle is both Over Dimensional and Overweight, the fees in the table above will be added to the $290 annual permit fee. Annual Permit fees are prorated quarterly. The annual permit cycle is from April 1st to March 31st. 

Additional information

  • You are responsible to verify bridge heights along your planned route.
  • Truck drivers who use the Spokane St Corridor in south Seattle may want to download this map
  • Weight restrictions on state-owned bridges
  • Weight restrictions on City-owned bridges
Structure NameLocationWeight Restriction
Magnolia Bridge Center, Pier 91 ramps to Port of Seattle on Magnolia Bridge No trucks allowed
McGraw St Bridge McGraw Street over the ravine near 3rd Ave North AASHTO Type 3: 19 tons
AASHTO Type 3S2: 29 tons
Single truck, 4 axle: 17 tons
Single truck, 5 axle: 19 tons
Single truck, 6 axle: 18 tons
Single truck, 7 axle: 18 tons
E Interlaken Blvd East Interlaken Blvd over 26th Ave East 19 tons
Fairview Ave N (southbound) Fairview Ave N between East Galer and E Prospect streets 40 tons
Cowen Park Bridge 15th Ave NE between Cowen Place NE and NE 62nd St Single truck, 7 axle: 36 tons
  • For more information about Commercial Vehicle Permits, contact Bobby Lindsey at (206) 684-5086
  • For the SDOT Load Rating Program, contact Yuling Teo at (206) 733-9244

WSDOT’s bridge vertical clearances trip planner can help you route your trip on state routes and bridges only. More at WSDOT Commercial vehicles.

Truck Validations and Commercial Vehicle Enforcement Officer (CVEO) Escorts

If you are entering/exiting the City of Seattle with an over-legal load using a state or western regional permit, you are required to obtain a City of Seattle validation number before moving the load on City streets.

For holders of City of Seattle Annual Over-legal permits, a validation number is required for loads that exceed the dimensions listed on the permits.

Generally, over-legal loads requiring a City of Seattle Commercial Vehicle Enforcement escort will be moved between the hours of 4:00 AM and 6:00 AM.

Permit Validation Numbers

Permit validation numbers reflect day-to-day routes and streets to be used by oversized vehicles and loads in Seattle. These numbers work in conjunction with other oversized vehicles and loads permits issued. Avoid citations from Seattle enforcement officers by obtaining validation numbers in advance and using authorized routes.

  • Validation numbers are free and quick to obtain. You can get them over the phone by calling SDOT at (206) 684-5086.
  • Numbers must be posted on original permit and obtained daily up to 24 hours in advance

Must reflect daily routes meant for transport by oversized vehicles and loads on city streets

City of Seattle Commercial Vehicle Enforcement escort fees:

Cost per hour per officer: $200.00
Minimum number of hours: 2 hours on Weekdays, 3 hours on Weekends, 4 hours on Holidays

Seattle Department of Transportation: Commercial Vehicle Enforcement, Transportation Operations Division ~ (206) 684-5086


Greg Spotts, Director
Address: 700 5th Ave, Suite 3800, Seattle, WA, 98104
Mailing Address: PO Box 34996, Seattle, WA, 98124-4996
Phone: (206) 684-7623

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The Seattle Department of Transportation (SDOT) is on a mission to deliver a transportation system that provides safe and affordable access to places and opportunities for everyone as we work to achieve our vision of Seattle as a thriving, equitable community powered by dependable transportation.