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Tolls By Vehicle Type/Class/Axle Count
Tolls effective July 01, 2025
Agency Classifications for Private and Commercial Vehicles
![]() | Washington State Department of Transportation |
The following payments are accepted at toll plazas while using this facility:
Available when checked
Which agency handles tolls on the SR 99 Tunnel?
![]() | Washington State Department of Transportation |
For drivers paying with a transponder, the following passes will work on the SR 99 Tunnel
Learn about transponders and accounts in Washington.
The SR 99 Tunnel offers license-plate tolling for those without a compatible transponder.
How you pay the license plate toll.
Plate payment is called Pay by Mail. Invoices for Pay by Mail are sent every few weeks. Payment is required by the due date on the invoice. A $2 surcharge, per toll, will be applied.
Invoices for licence plate tolling may include administrative fees, and they will be mailed to the address of the person named on the vehicle's registration.
Quick Tip Open-road tolling means there are travel lanes that have no toll booths, only overhead gantries. All-electronic tolling means no cash is permitted. If a facility does not take cash, then license-plate tolling generally prevails for that toll facility, unless otherwise noted.