The Seattle Times » Seattle Tunnel Partners (STP) disagrees with the stop work order issued by Washington State Governor Inslee. STP contends its response to the sinkhole was appropriate, and believes the risk for additional sinkholes is increased if drilling stops now. This article highlights a few of the findings listed in STP’s root cause analysis, […]
King 5 News » A sinkhole developed near the repair pit shortly after drilling resumed on the new State Route 99 project causing Washington State Governor Inslee to issue a stop work order on the project until the Seattle Tunnel Partners (STP) can guarantee the public’s safety.
Associated Press / KomoNews.com » After being stuck for two years, Bertha, the machine boring a tunnel under Seattle, has successfully moved 73 feet and installed 12 concrete tunnel rings. The Seattle Tunnel Partners (STP) and the Washington State Department of Transportation (WSDOT) now expect the project to be completed by April 2018, nearly three years […]
The Seattle Times » According to the Washington State Department of Transportation (WSDOT) the tunnel boring machine, Bertha, is finally on the move again after stalling two years ago. The contractors, Seattle Tunnel Partners (STP), plan to resume digging under the Alaskan Way Viaduct in March 2016 after a testing period in January. Repair costs are […]
The Seattle Times » The tunnel boring machine, known as Bertha, is almost ready to resume digging. Bertha’s new rotary cutter and soil mixing arms will be tested over the next few weeks. The Seattle Tunnel Partners are injecting grout into the soil and plan to resume digging by November 23, 2015 with construction completion expected by […]
Puget Sound Business Journal » In response to lawsuits by insurance companies, the Washington State Department of Transportation (WSDOT) filed suit against the lead contractor for the Alaskan Way Viaduct tunnel project, nicknamed Bertha. WSDOT is requesting the state court postpone any legal action until the project is completed.