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Before and After: SR 99 south of downtown Seattle | by WSDOT
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Before and After: SR 99 south of downtown Seattle

Learn more about the Alaskan Way Viaduct Replacement Program at www.alaskanwayviaduct.org or follow Bertha, the SR 99 tunneling machine, on Twitter @BerthaDigsSR99.

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Taken on April 17, 2014