s Hoover Dam Canyon Bridge or the Mike O'Callaghan-Pat Tilman Memorial Bridgexavier
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franceGermans
in France - St. Quentin cathedral Germans
in France Gustave Eiffel’s first work: the Eiffel passerelle, Bordeaux a dream unfulfilled - the transporter bridge [pont transbordeur], Bordeaux a fifth bridge coming to Bordeaux: pont Bacalan-Bastide, a new vertical lift bridge the
6th bridge at Rouen: Pont Gustave Flaubert, Ile de France, Paris: in the context of Abelard and of French cathedrals France’s western isles: Ile de Ré France’s western iles: Ile d’Oleron
on first arriving in France - driving
Marianne - a French national symbol, with French definitive stamps the calendar of the French Revolution
Pic du Midi - observing stars clearly, A64 Carcassonne, A61: world heritage fortified city
the French umbrella & Aurillac the
Citroën 2CV:
the forest as seen by francois mauriac, and today
mardi gras! carnival in Basque country what a hair cut! m & french pop/rock country life in France: the poultry fair
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14 October 2010: The 271-metre high and 579-metre long Hoover Dam Canyon Bridge is dedicated and opened to traffic. The Hoover or Boulder Dam, when it opened in 1935 included a scenic route to cross from one side of the dam to the other, from Nevada to Arizona or visa versa, by a road along the top of the dam. Over the decades, this narrow, two-lane road and its hairpin approach roads has become a bottleneck and safety hazard, so a solution had to be found. To compound the problems, multiple check points were placed on the road after the terrorist attacks of 9-11 in 2001. This has resulted in another spectacular construction project, the dam itself being the first. Officially titled the Mike O’Callaghan-Pat Tilman Memorial Bridge, this bridge is also known as the Hoover Dam Bypass, or the Colorado River Bridge. Regarding the other proposed name for this bridge, Mike O’Callagan was an Army veteran and the 23rd Governor of Nevada, while Pat Tillman was a former NFL player and Army veteran. constructing the hoover dam bridgeUnder
construction, the twin concrete arch sections being supported
by cable stays.
Although the roadbed of this bridge will be supported by a twin-rib arch, it started life as a cable-stayed suspension bridge - the concrete sections of the bridge being supported by cable stays from temporary pylons until the twin-rib arch was completed and self-supporting.
structural statistics and other interesting facts
end notes |
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