Heavy Haul Industrial Corridor
The City of Tacoma has a designated Heavy Haul Industrial Corridor within the Port of Tacoma. A special permit is available for vehicles that exceed legal weight limits between Transload Facilities and Marine Terminals.
Frequently Asked Questions
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All vehicles traveling through the Heavy Haul Industrial Corridor in the Port of Tacoma must comply with the following regulations:
- Freight must be in a sealed ocean-going container
- The vehicle must be en route between a facility and a marine terminal
- Travel only on established routes
- Minimum axle spacing of 36 feet between consecutive sets of tandem axles
- Maximum gross weight of 98,000 pounds
- 43,000-pound maximum on tandem drive axles
- 40,000-pound maximum on tandem trailer axles
An annual special permit costs $3,000. Vehicle operators must have a Washington State Heavy Haul special permit for travel on State Route 509.
For more information on obtaining a City of Tacoma permit, please visit the City’s Planning and Development Services Permit website. If you have any questions about permits or permit types, please contact the City of Tacoma’s Commercial Vehicle Enforcement Unit by calling (253) 591-5289 or by email. They can help guide you through the process and help you understand the requirements for your specific situation.
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Due to ongoing construction in the City, including the Port of Tacoma, any oversized load requiring escort vehicles must contact the Road Use Compliance or the Commercial Vehicle Enforcement Unit at least seven (7) days before the move date. Adhering to this requirement is crucial, as failure to do so may result in refused entry. We appreciate your cooperation in maintaining safety and efficiency in our City’s transportation system.