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Spokane Street Viaduct Widening

The Seattle Department of Transportation (SDOT) is widening and improving the South Spokane Street Viaduct---the 60-year-old elevated roadway that carries 65,000-70,000 vehicles daily between I-5 and the West Seattle Bridge.

The South Spokane Street project creates a new two-lane eastbound off-ramp leading to Fourth Avenue South; relocates the westbound on- and off- ramps to a new First Avenue South ramp; widens the upper roadway to the north by 41 feet - between Sixth Avenue South and East Marginal Way; and rebuilds the lower roadway in concrete, with new curbs, sidewalks and improved pedestrian and bicycle access.

Work on this long-awaited project began in 2008 and is set to wrap up in 2012. The Port of Seattle is contributing $3.4 million to the City of Seattle toward this construction.​

Learn more about it at

Spokane Street