I came across these great photos of geofoam use on the WSDOT SR 519 project which has been in service over a year now. They needed geofoam fill on the east and west bridge approaches because of high water table, poor soils and the need to reduce loading on existing buried utilities…all classic reasons for this type of geotechnical engineering solution. [Source: WSDOT Flickr. Image: WSDOT Flickr]
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Seattle’s Alaskan Way Viaduct and Seawall Replacement Project is a political lightning rod, but this amazing simulation video released by WSDOT underscores what COULD happen if a significant earthquake struck the Seattle Downtown Waterfront area.