Sinkhole worries loom large as Bertha prepares for dive under viaduct, downtown

The Seattle Times » In January 2016, a geotechnical expert for [...]

By |2018-02-05T14:38:15-08:00April 6, 2016|Alaskan Way Viaduct, Design-Build, Roads, Washington|Comments Off on Sinkhole worries loom large as Bertha prepares for dive under viaduct, downtown
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