[nidokidos] ​The Incredible Construction of Hoover Dam Bridge

 

 ​The Incredible Construction of Hoover Dam Bridge
 

Source: David W.​​
The Mike O'Callaghan–Pat Tillman Memorial Bridge is an arch bridge in the United States that spans the Colorado River between the states of Arizona and Nevada. The bridge is located within the Lake Mead National Recreation Area approximately 30 miles (48 km) south-east of Las Vegas, Nevada, and carries U.S. Route 93 over the Colorado River.
Opened in 2010, it was the key component of the Hoover Dam Bypass project, which rerouted US 93 from its previous routing along the top of Hoover Dam and removed several hairpin turns and blind curves from the route.
 

 

Dam information:
Hoover Dam was built after the 1930 Great Depression, the project was meant to provide jobs for thousands of unemployed Americans.
Dam type: Concrete gravity-arch dam
Top width: 45 ft. (14 m), Base width: 660 ft. (200 m)
Height: 726 ft. (230 m), Length: 1245 ft. (380 m)
Construction began in 1931 and ended in 1936
Cost: $49 million
Reservoir: 28,537,000 Acre ft. (35,200 Kilo cubic meter)
Power annual generation: 4.2 Billion kWh
Hoover Dam is a popular tourist site – annually visited by more than a million people
 

 

 

The original name for the bridge was "Hoover Dam Bypass Bridge"
Now officially called: Mike O'Callaghan – Pat Tillman Memorial Bridge
Mike O'Callaghan – (Sept. 10, 1929 – Mar. 5, 2004) Joined the Marines at sixteen, om 1952 he lost part of his left leg in the battle of Korean War, from 1971 to 1979 he was Governor of Nevada, later he was the Executive Editor at the Las Vegas Sun newspaper.
Pat Tillman – (Born Nov. 6, 1976) A famous NFL football player from Arizona, he gave up his well-paid job and joined the army. He was killed by friendly fire in Afghanistan on April 22, 2004.
 

Bridge technical information:
Designed by T. Y. Lin International (林同棪)
Bridge length: 1900 ft. (580 m)
Arch span: 1060 ft. (320 m)
Bridge width: Four lane highway
Bridge height: 840 ft. (263 m), 2nd height of U.S.
Bridge away from Hoover Dam: 1600 ft. (550 m)
Construction began on Feb. 2005 and completed on Oct.2010
Construction cost: $114 million
This is the first Concrete-and-steel composite arch bridge built in United States
Pedestrian access to the bridge is available for tourists
 

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Life is too short to wake up in the morning with regrets, so ... Love the people who treat you right. Pray for the ones who don't. Life is ten percent what you make it and ninety percent how you take it!

 

Hoover Dam - Megastructures Documentary National Geographic Documentary

Hoover Dam, once known as Boulder Dam, is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Arizona and Nevada.

Click here to watch this video

http://www.nidokidos.org/threads/243832

 

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Posted by: ABDULLAH-AL SHAFI <shafi_abdullah@yahoo.com>

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