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bertha seattle tunnel

Alaskan Way Viaduct - Follow Bertha

It's official - Bertha has broken through! Seattle's tunnel boring machine that's been digging beneath the city for the State Route 99 tunnel reached the end of its 1.75-mile journey Tuesday ...

Bertha (tunnel boring machine) - Wikipedia

Bertha. Read more about the technical challenges and rising costs of the Highway 99 tunnel project, and the successes and travails of Bertha, the biggest-ever boring machine.

Alaskan Way Viaduct replacement tunnel - Wikipedia

Bertha’s end could be near. The world’s largest tunnel-boring machine is on schedule to break into daylight this spring after a tumultuous dig under downtown Seattle that’s years behind ...

Seattle's tunnel machine Bertha breaks through nearly 4 ...

Apr 04, 2017 · Bertha has broken through. After nearly four years underground, Seattle’s beleaguered boring behemoth clawed its way into daylight yesterday, leaving a 1.7-mile tunnel behind it.

Bertha | The Seattle Times

Bertha, the world's largest tunnel-boring machine, completely broke through the north end of the tunnel shortly before noon Tuesday, April, 4 2017. Bertha has broken through. The world's largest ...

How did we get here? A look back on Seattle’s tunnel ...

Bertha finally broke through in April of this year, having dug nearly 1.7 miles of tunnel. Now, Seattle's builders are kitting out the empty concrete tunnel it left behind with stacked roadways ...

Bertha, Seattle's SR 99 Tunneling Machine, Is Finally Done ...

It helps that divided Seattleites found something to like in the $80-million, 326-feet-long tunnel boring machine, known as Bertha. The nickname honors Bertha Landes, Seattle's first and only ...

Watch: Bertha breaks through Seattle waterfront tunnel ...

Apr 04, 2017 · The contractor Seattle Tunnel Partners began mining around 8 a.m. this morning. The tunneling machine Bertha will mine through the five-foot-thick concrete wall of the disassembly pit, an effort that is expected to take several hours.

Inside the Massive Tunnel Seattle Built to Replace an ...

Bertha, the world's largest tunnel-boring machine, ends its journey today. It has spent four years traveling less than two miles to build a new car tunnel underneath Seattle.

Seattle's big tunnel project reaches a milestone, but it's ...

Apr 04, 2017 · Bertha Finally Breaks Through In Seattle : The Two-Way After a two-year delay for repairs, the giant tunnel-boring machine has completed its mission far beneath the city's streets.

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