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Sunday, March 14, 2010

Tricked-out tunnel

Not only can an automobile tunnel through a mountain be a tremendous time-saver, it provides a safer route than driving over frequently dangerous roads. However, because tunnels are confined channels with limited access, danger never can be eliminated. As a result, when the Alaska Department of Transportation considered opening a 2-mile existing railroad tunnel between Anchorage and Whittier to automobile traffic, safety was the key issue. After Japan invaded some of the Aleutian Islands during World War II, the U.S. Army founded Whittier as a military port to build bases in Alaska. In 1942, the U.S. Army constructed ...

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