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TheAlaskan Way Seawall is aseawall which runs for approximately 7,166 feet (2,184 m) along theElliott Bay waterfront southwest ofdowntown Seattle from Bay Street to S. Washington Street.[1]The seawall was rebuilt in the 2010s as part of a waterfront redevelopmentmegaproject estimated to cost over $1 billion.[2]
The seawall was built to provide level access to Seattle'spiers and supports theAlaskan Way Viaduct andAlaskan Way itself, which is a surface street. Completed in 1934, the seawall was built on top of woodpiling.[citation needed]
Despite efforts to prevent marine pest damage when the seawall was designed, after the2001 Nisqually earthquake, theSeattle Department of Transportation found thatgribbles had consumed all the wooden supports in some places.[3]
TheWashington State Department of Transportation states that there is a 1-in-20 chance that it could be shut down by an earthquake within the next decade,[4] and so plans have been underway to replace both seawall and viaduct.
The seawall rebuild project was estimated to cost $350 million as part of an overall waterfront redevelopment budgeted in 2012 at $1.07 billion.[2][5] The project is funded by abond measure that was approved by Seattle voters in the November 2012 general election.[6] Construction began in 2013 and was completed in 2017, more than a year late and costing $410 million.[7][8][9]
47°36′16″N122°20′21″W / 47.60444°N 122.33917°W /47.60444; -122.33917
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