Alaskan Way Seawall
The Alaskan Way Seawall is a seawall which runs for approximately 7,166 feet (2,184 m) along the Elliott Bay waterfront southwest of downtown Seattle from Bay Street to S. Washington Street.[1] The seawall is being rebuilt in the 2010s as part of a waterfront redevelopment megaproject estimated to cost over one billion dollars.[2]
History
The seawall was built to provide level access to Seattle's piers and supports the Alaskan Way Viaduct and Alaskan Way itself, which is a surface street. Completed in 1934, the seawall was built on top of wood piling.[citation needed]
Replacement
Recently[when?], the seawall has significantly deteriorated due to wood-eating gribbles.[citation needed]
In addition, everything behind the seawall from Alaskan Way to Western Avenue is built on top of fill, making for a very dangerous situation should a large earthquake occur.[opinion][clarification needed][citation needed]
The viaduct itself has been considered particularly at risk[opinion]; the Washington 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,[3] 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][4] Construction began in 2013 and it is scheduled to be complete in 2017, more than a year later and costing $409 million as of September 2015[update].[5][6]
See also
- Alaskan Way Viaduct replacement tunnel, more information on the replacement project
References
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External links
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Wikimedia Commons has media related to Alaskan Way Seawall. |
- City of Seattle Department of Transportation: Seawalls
- Washington State Department of Transportation Alaskan Way Viaduct and Seawall Replacement Project
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