Customer Service Support
You can submit applications for all our permit types through the Seattle Services Portal.
For customers who need language assistance or technical coaching, staff assistance is available via virtual meetings, email, phone, and limited in-person help is offered Tuesday-Thursday, 10:30 a.m.-3:00 p.m., at our Customer Information Desk on the Fourth floor of the Seattle Municipal Tower.
Heavy Haul Network Permits
Working with the Port of Seattle, we’ve made it easier and more convenient to permit and inspect overweight vehicles operating in and out of Seattle’s Heavy Haul Network (HHN Map) or along any of these city streets (list). This partnership, also known as The Northwest Seaport Alliance, helps reduce congestion around the ports while making it easier to conduct business and remain competitive.
You are responsible to verify bridge heights along your planned route.
The Heavy Haul Network Permit is an annual permit that is valid for 12 months from the date of purchase.
How to get a Heavy Haul Network Permit
Apply online, or in person at the traffic permit counter:
Seattle Municipal Tower
700 5th Avenue, 37th Floor Seattle, WA 98104-5043
Monday – Friday, 8:30 AM – 4:30 PM, except holidays
How much does it cost?
$200.00