Search results
Results From The WOW.Com Content Network
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.
In Seattle, the highway is known as East Marginal Way and Aurora Avenue North; in Everett, it uses Evergreen Way and Everett Mall Way. [225] [226] A four-block section of former SR 99 between Denny Way and the new tunnel portal was renamed to 7th Avenue North and Borealis Avenue in early 2019 as part of the reconfiguration of Aurora Avenue. [227]
The Alaskan Way Viaduct ("the viaduct" for short) [1] [2] [3] was an elevated freeway in Seattle, Washington, United States, that carried a section of State Route 99 (SR 99). The double-decked freeway ran north–south along the city's waterfront for 2.2 miles (3.5 km), east of Alaskan Way and Elliott Bay, and traveled between the West Seattle Freeway in SoDo and the Battery Street Tunnel in ...
This is a list of tunnels built in the city of Seattle, in the U.S. state of Washington. The Puget Sound region , where Seattle lies, has a history of glaciation that has left many hills and ridges that civil engineers have needed to traverse for transportation and utilities. [ 1 ]
It is mostly a surface-level highway with the exception of the SR 99 Tunnel through downtown Seattle. The tunnel was created to replace the Alaskan Way Viaduct, which was torn down in 2019. A 4-mile section of the old US 99 through unincorporated Hazel Dell and Salmon Creek, north of Vancouver, Washington is still known as NE Highway 99.
The SR 99 Tunnel is a 2-mile (3.2 km) bored double-decker highway tunnel carrying a section of State Route 99 (SR 99) under Downtown Seattle from SoDo in the south to South Lake Union in the north. Since the 2001 Nisqually earthquake , the replacement of the Alaskan Way Viaduct has been the source of much political controversy demonstrating the ...
Construction of the Eysturoy Tunnel took about four years, opening in December 2020. These subsea tunnels are created by using the drill and blast method: drilling holes in the basalt — a strong ...
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.