Hoover Dam, in Blendon Township, near Westerville, Ohio, dams the Big Walnut Creek to form the Hoover Memorial Reservoir. This reservoir is a major water source for the city of Columbus, Ohio. It holds 20.8 billion US gallons (79,000,000 m³) of water and has a surface area of 3,272 acres (13.24 km²), or about five square miles. Construction began during 1953 due to the increased water demand of post-war Columbus. The project was completed and dedicated in 1955 and the dam officially opened in 1958. It was named for two brothers, Charles P. Hoover and Clarence B. Hoover, to honor their careers with the City of Columbus Waterworks.^[2][3]

Quick Facts Country, Location ...

Hoover Dam
Location of Hoover Dam in Ohio
Country	United States
Location	Blendon Township, near Westerville
Coordinates	40°06′29″N 82°52′54″W
Status	Operational
Opening date	1955
Owner(s)	City of Columbus, Ohio
Dam and spillways
Type of dam	Embankment/Concrete gravity composite
Impounds	Big Walnut Creek
Height	94 ft (29 m)
Length	2,583 ft (787 m)
Elevation at crest	911 ft (278 m)
Reservoir
Creates	Hoover Reservoir
Total capacity	63,832 acre⋅ft (78,735,613 m3)
Surface area	3,272 acres (13 km2)
Maximum length	8 mi (13 km)
Maximum width	1 mi (2 km)[1]

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This section does not cite any sources. (April 2015)

• Quantity of concrete: approximately 180,000 cubic yards (140,000 m³)
• Quantity of earth fill: approximately 600,000 cubic yards (460,000 m³)
• Length of spillway: 680 feet (210 m)
• Length of dam: 2,583 feet (787 m)
• Maximum height of dam: approximately 94 feet (29 m) above stream bed
• Uncontrolled spillway elevation: 890 feet (270 m) mean sea level
• Top of dam elevation: 911 feet (278 m) mean sea level

• A view of the bridge and water flowing over the dam
• A view of the reservoir behind the dam
• A view of the reservoir from on top of the dam