| Hoover Dam | |
| Location Map: | Ohio |
| Coordinates: | 40.1081°N -82.8817°W |
| Country: | United States |
| Location: | Blendon Township, near Westerville |
| Status: | O |
| Opening: | 1955 |
| Owner: | City of Columbus, Ohio |
| Dam Type: | Embankment/Concrete gravity composite |
| Dam Height: | 940NaN0 |
| Dam Length: | 25830NaN0 |
| Dam Elevation Crest: | 9110NaN0 |
| Dam Crosses: | Big Walnut Creek |
| Res Name: | Hoover Reservoir |
| Res Capacity Total: | 638320NaN0 |
| Res Surface: | 32720NaN0 |
| Res Max Length: | 80NaN0 |
| Res Max Width: | 10NaN0[1] |
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 20.8e9USgal of water and has a surface area of 3272acres, 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]