The new SR 99 tunnel under downtown Seattle

Get your free
Good To Go! tolling
pass for the SR 99 tunnel

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Getting around using the tunnel

The new tunnel provides a direct route under downtown from the stadiums to the Space Needle. The south end connects to Alaskan Way and downtown, the north end connects to Seattle Center and South Lake Union.

Explore an interactive map >

Learn more about the tunnel and its entrances and exits >

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Work underway on viaduct, Battery Street Tunnel and Aurora Ave N

With the tunnel open, work has begun on removing the Alaskan Way Viaduct and closing the Battery Street Tunnel. Three blocks of Aurora Avenue North where the Battery Street Tunnel once connected to SR 99 are also being rebuilt.

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Tolls in the tunnel

The SR 99 tunnel is now open. Tolling will start late summer 2019.


Toll rates will range from $1 to $2.25 with a Good To Go! pass, depending on time of day.

Learn how tolling will work >