Documents Show How Much Engineers Are Worried About Sinkholes—Right Before Bertha Drills Under the Viaduct

by Sydney BrownstoneSinkholes seem to be a "recurring source of frustration" for the state and its contractor, the Seattle Times reports. Washington State Department of Transportation
The Seattle Times's Mike Lindblom has a story out today about a history of e-mails and documents showing state officials and tunnel engineers biting their fingernails about the downtown tunnel boring machine.Earlier this year, Governor Jay Inslee temporarily shut down drilling and put the tunnel's contractors on no