Whittier Tunnel in Alaska
Автор: J K
Загружено: 2013-07-21
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The video I took while driving through the Whittier Tunnel in May 2013.
The privately operated, 2.6-mile, dual mode Anton Anderson Memorial Tunnel (aka Whittier Tunnel) connects the cities of Porter and Whittier on Prince William Sound, 65 miles southeast of Anchorage, Alaska. Originally constructed as a railroad tunnel in 1943, the tunnel was Whittier's only land link for over 50 years, during which time the city developed as an important intermodal barge-rail freight hub. In response to the growing number of people wanting to travel overland to Whittier, DOT&PF converted the tunnel for use as a one-lane combined highway and rail tunnel that allows cars and trains to take turns traveling through the tunnel.
The Whittier Tunnel conversion involved two innovative P3s. DOT&PF procured the conversion as its first design-build contract, which it awarded to Kiewit Construction Company. Construction began in September 1998 and involved replacing the grave track bed with concrete slab suitable for both rail and rubber tire vehicles. - Excerpted from the DOT's website (http://www.fhwa.dot.gov/ipd/project_p...)
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