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Freighter Fairpartner carrying the disassembled tunnel boring machine into the Port of Seattle in April 2013. Bertha was designed and manufactured by Hitachi Zosen Sakai Works of Osaka, Japan, and was the world's largest earth pressure balance tunnel boring machine, [14] at a cutterhead diameter of 57.5 feet (17.5 m) across.
First complete Earth Pressure Balance Machine tunnel in Seattle [1] [5] [6] 2002 Henderson CSO Storage Tunnel 16.8 ft (5.1 m) O.D. 3,105 ft (946 m) Earth Pressure Balance Machine, connecting microtunnels [1] [5] 2006 Beacon Hill tunnel: Twin 20 ft (6.1 m) 1 mi (1.6 km) Tunnel boring machine [7] 2009–2012 University Link Tunnel: Twin 20 ft (6.1 m)
The State Route 99 tunnel, also known as the Alaskan Way Viaduct replacement tunnel, is a bored highway tunnel in the city of Seattle, Washington, United States.The 2-mile (3.2 km), double-decker tunnel carries a section of State Route 99 (SR 99) under Downtown Seattle from SoDo in the south to South Lake Union in the north.
Seattle Public Utilities held a public naming contest for its latest massive piece of machinery — a tunnel boring machine that will be used to build a storage space for the Ship Canal Water ...
The backside of Bertha the tunnel boring machine and the unfinished interior of the SR 99 tunnel, seen in January 2017. After the demolition of the viaduct's southernmost stretch and its lanes were realigned onto an adjacent bypass in 2012, crews began excavation of a 420-foot-long (130 m) launch pit to house the tunnel boring machine. [195]
Beacon Hill tunnel is a public transit tunnel in Seattle, Washington, carrying light rail trains on the 1 Line under Seattle's Beacon Hill between Rainier Valley and SoDo just east of Interstate 5. [1] The Beacon Hill Link Light Rail station is approximately 160 feet (49 m) underground near the midpoint of the tunnel.
The Boring Company (TBC) is an American infrastructure, tunnel construction service, and equipment company founded by Elon Musk.TBC was founded as a subsidiary of SpaceX in 2017, and was spun off as a separate corporation in 2018.
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