Image: Trevor Dykstra
While Bertha waits for fixes to the barges that carry away the dirt, another anomaly arrived. A 250 cubic yard sinkhole appeared just west of the site. WSDOT filled it with concrete. The ground seems stable. Everything should work out fine. The tunnel and Bertha are fine. The Viaduct is fine. The hole was the sort of thing that was anticipated, but is unfortunate at best. Maybe the soil was too fine? In the meantime, Bertha continues to idle, as does the progress.
· Sink hole opens up behind tunnel drilling Bertha [KING5]
· While Bertha halts over barge issues, sinkhole opens near access pit [PI]
· Bertha Budges but is Bogged down by a Barge [CS]
· All Bertha coverage [CS]