Puget Sound Business Journal » Crews are preparing to lift the 2,000-ton, 57-foot-diameter cutting head from the pit where Bertha has been stuck for over a year. Work on the Alaskan Way Viaduct was halted when Bertha, the boring machine, stalled in 2013.
SeattlePI.com » Nearly two years behind schedule, the Alaska Way Viaduct is expected to open in August 2017. The project was delayed when the Bertha boring machine stalled in December 2013. Recent efforts to repair Bertha were halted when dewatering around the access pit caused uneven ground settlement.
KIRO News 7 » Bertha excavation continues following reports that settlement has stabilized.
SeattlePI.com » The ground below the Alaska Way Viaduct is collapsing unevenly, and some of the settlement is uneven, increasing the risk of structural damage to the freeway and nearby buildings as the Washington State Department of Transportation (WSDOT) works to reach and replace the damaged head of the Bertha boring machine.
The Seattle Times » After stalling in December 2013, Bertha, the tunnel-boring machine, has moved forward three feet and will bore upward 20 feet in order to be repaired. Reduced payments on the $1.44 billion design-build contract for the Alaskan Way Viaduct will continue to be made to the Seattle Tunnel Partners while repairs are made. […]
Puget Sound Business Journal » The Alaskan Way Viaduct project is a massive design-build (DB) project ongoing in the Washington State. The main drilling machine, known as Berta, has been stalled since December 2013 causing an extensive delay in the project. This article covers the plan to get the drill up and running again. Some good […]