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    | Statistics about Glen Canyon Dam | 
  
  
    | Height of the dam above bedrock:  | 
    710 feet (216 m)  | 
  
  
    | (Glen Canyon Dam is the second highest dam in the United States (after Hoover Dam which is 16 feet taller)  | 
  
  
    | Thickness of lowest point of foundation:  | 
    300 feet (91 m) | 
  
  
    | Thickness at crest:  | 
    25 feet (7.4 m)  | 
  
  
    | Crest length:  | 
    1,560 feet (475 m)  | 
  
  
    | Volume of concrete in dam:  | 
    4,901,000 cubic yards (3,750,00 cubic meters)  | 
  
  
    | Cost of dam:  | 
    $187,000,000 | 
  
  
    | Total cost of dam, powerplant, town of Page, and other infrastructure:  | 
    $314,000,000 | 
  
  
    | Construction authorized:  | 
    April 11, 1956  | 
  
  
    | Construction begins (diversion of Colorado River):  | 
    February 11, 1959  | 
  
  
    | First bucket of concrete  | 
    June 17, 1960  | 
  
  
    | Last bucket of concrete  | 
    September 13, 1963  | 
  
  
    | First power generation  | 
    September 4, 1964  | 
  
  
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    | Statistics about Glen Canyon Bridge | 
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    | Second highest steel bridge in the United States  | 
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    | Length (span): | 
    1,028 feet (313.3 m)  | 
  
  
    | Height above Colorado River:  | 
    700 feet (213 meters)  | 
  
  
    | Construction begins:  | 
    February 1957  | 
  
  
    | Construction ends:  | 
    January 1959  | 
  
  
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    | Statistics about Lake Powell  | 
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    | Start of storage:  | 
    March 13, 1963  | 
  
  
    | Completion of initial filling:  | 
    June 22, 1980  | 
  
  
    | Elevation of lake level at full capacity:  | 
    3,700 feet (1,128 m)  | 
  
  
    | Capacity when full: | 
    26,215,000 acre feet (32,336 million cubic meters)  | 
  
  
    | Surface area when full:  | 
    266 square miles (68,900 hectares)  | 
  
  
    | Length when full:  | 
    186 miles (299 km)  | 
  
  
    | Miles of shoreline:  | 
    1,960 miles (3,150 km)  | 
  
  
    | Depth of water at dam when full:  | 
    560 feet (171 m)  | 
  
  
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    | Source of data: U.S. Bureau of Reclamation, 2008 |