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Article: San Francisco-Oakland Bay Bridge
- Article from:
- The Columbia Encyclopedia, Sixth Edition
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Copyright informationThe Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information)
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San Francisco-Oakland Bay Bridge double-decked structure, W Calif.; built 1933-36. It has a total length of 8.25 mi (13.2 km). From San Francisco it crosses the bay to Yerba ...
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Article: Alaska tunnel gets millennial makeover.
Railway Track and Structures;
May 1, 1999 ;
700+ words
......windows afforded by the railroad's schedule. Built by the U.S. Army Corps of Engineers during World War II, the Anton Anderson Tunnel connects Portage, Alaska, and the port town of Whittier through Bear Valley. Two tunnels and 15 miles of track were constructed at...
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