Washington Oversize/Overweight Permits
Washington oversize permits are valid for three days. Haulers must obtain their permits prior to entering the state. Washington permits can no longer be purchased at Ports of Entry. Therefore, you must purchase them ahead of time with us!
Haulers may transport oversize loads from one-half hour before sunrise to one-half hour after sunset, including Saturdays and Sundays. However, vehicles and loads not exceeding 12’6″ wide, 14’6″ high, and 105′ long, including legal overhangs, may operate at night with proper lighting as defined by Federal Regulations 49 CFR 393.11.
|Weight: Gross weight is legal up to 105,500 lbs. depending on a number of axles and their spacings:||
DIVISIBLE LOADS EXCEEDING 80,000 LBS.: Your load can exceed 80,000 lbs. of gross weight without a permit on state highways and on Interstate Highways as long as you do not exceed the legal limits on all axle/group weights. Beyond that, your load is legal when you are licensed for at least its gross weight.
|Width||16′ (14′ on 2-lane highways)|
|Length||125′ trailer and load|
|Weight (Depends on axle spacings)||Gross Weights
Note: On height clearances: Washington state oversize permits do not guarantee height clearances on permitted routes.
Loads exceeding these dimensions or exceeding 200,000 lbs. are considered superloads.
Requirements for Escort/Pilots Cars
On 2 Lane Highways
|Front overhang (depends on routes)||
|Rear Overhang|| |
When the load measured from the center of the last axle exceeds 1/3 or the total length.
On multiple Lane Highways
|Height (county to city authorizations necessary for detours to accommodate move)||
Monday through Friday time/width curfew restrictions for the jurisdictions of Seattle-Everett, Tacoma, Olympia, Vancouver, and Kelso are listed on the Commuter Curfew Hours Sheet which accompanies your permits. A validation number is required for permission to use city routes in Seattle and Tacoma.
You can also obtain any trip and fuel permits you may need with our sister site!