The East River Mountain Tunnel near Bluefield, West Virginia carries Interstate 77 under East River Mountain. The northern end of the tunnel is in West Virginia, and the southern end is in Virginia. It opened December 20, 1974. Bluefield is a city located in Mercer County, West Virginia. ... Interstate 77 is an interstate highway in the eastern United States. ... State nickname: Mountain State Other U.S. States Capital Charleston Largest city Charleston Governor Joe Manchin Official languages English Area 62,809 km² (41st) - Land 62,436 km² - Water 376 km² (0. ... State nickname: Old Dominion Other U.S. States Capital Richmond Largest city Virginia Beach Governor Mark R. Warner Official languages English Area 110,862 km² (35th) - Land 102,642 km² - Water 8,220 km² (7. ... December 20 is the 354th day of the year (355th in leap years) in the Gregorian calendar. ... 1974 is a common year starting on Tuesday (click on link for calendar). ...
The tunnel is 5,412 feet long. The first town south of it is the aptly-named Rocky Gap, Virginia. The tunnel is about 20 miles north of its shorter (4,229 feet) cousin, the Big Walker Mountain Tunnel. The Big Walker Mountain Tunnel, a few miles south of both the town of Bland, Virginia and a segment of the Appalachian Trail, carries Interstate 77 under Big Walker Mountain. ...
External links
Info about I-77 (http://www.roadstothefuture.com/I81_I77_VA.html)
Tunnelling on a large scale was also carried on at the rock temples of Nubia and of India, and the architectural features of the entrances to some of these temples might be studied with advantage by the designers of modern tunnel fronts.
As instances of ancient tunnels through soft ground and requiring masonry arching, reference may be made to the vaulted drain under the south-east palace of Nimrod and to the brick arched tunnel, 12 ft. high and 15 ft. wide, under the Euphrates.
This tunnel is one of fiftytwo single-line tunnels, with a gradient of I in 40, on the main line between Florence and Bologna, built by Thomas Brassey.
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