In late 2019, the Washington State Department of Transportation and Seattle Tunnel Partners (STP) engaged in a nine-week trial of claims arising from construction of the new State Route 99 tunnel under downtown Seattle. One major issue for the jury was whether STP had encountered “differing site conditions” – unknown underground conditions that differ materially
WSDOT
What’s Up with Bertha?
By Karl Oles on
Posted in Construction Litigation
Regular readers of this blog know that Stoel Rives represents the State of Washington Department of Transportation (“WSDOT”) with regard to construction of the new highway 99 tunnel in downtown Seattle. The giant tunnel boring machine, named “Bertha” (not “Big Bertha” as is sometimes reported), finished its work in April and is now undergoing a…