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S Spokane Street Viaduct

Project location map

Overview
The project will widen the Spokane Viaduct by building a parallel structure north of and connected to the existing structure. The project will also demolish the existing westbound ramps at 4th Ave S and construct new ramps at 1st Ave S and add an eastbound off-ramp at 4th Ave S.

Why are we Building This Project?
Improves traffic flow and safety.

How can I get more information?
Contact:

Marion Hitchcock
(206) 233-0043
marion.hitchcock@seattle.gov