Washington Oversize Permits: Complete Guide
Washington Oversize Permits: Your Step-by-Step Guide
Hauling oversize or overweight loads through the Evergreen State? The Washington State Department of Transportation (WSDOT) has strict rules for over-dimensional vehicles. This guide from OSOWPermits.com walks you through Washington’s oversize permit process so you can keep your load moving legally and safely. State rules can also require trip and fuel permits, depending on distance and vehicle registration. Need a faster solution? Request a quote from OSOWPermits.com for expert assistance.
Legal Dimensions
- Width
- 8.5 feet
- Height
- 14'0"
- Length
- 53' (single) / varies (combo)
Weight Limits
- Gross
- 80,000 lb (bridge formula applies)
- Per Axle Notes
- Permits commonly issued up to ~105,500 lb with axle-group compliance
Example Scenario
Frequently Asked Questions
Can I get a permit for multiple trips?
Yes. Washington offers monthly and annual blanket permits for specific types of loads and dimensions.
What counts as a superload in Washington?
Generally, anything over 16 feet wide, 125 feet long, or 200,000 pounds gross weight requires superload approval.
Can I travel through Snoqualmie Pass with an oversize load?
Yes, but seasonal weather conditions and size limits may apply. Always check WSDOT pass conditions.