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| Lake Humphreys | |
|---|---|
  Lake Humphreys  Lake Humphreys | |
| Location | Stephens County, Oklahoma |
| Coordinates | 34°35′31″N 97°53′38″W / 34.592°N 97.894°W |
| Type | reservoir |
| Primary inflows | Wildhorse Creek |
| Primary outflows | Wildhorse Creek |
| Basin countries | USA |
| Built | 1957 |
| Average depth | 40 feet (12 m) |
| Water volume | 14,041 acre-foot (17,319,000 m3) |
| Shore length1 | 16.1 miles (25.9 km) |
| Settlements | Duncan, Oklahoma |
| 1 Shore length is not a well-defined measure. | |
Lake Humphreys is a reservoir located northeast of the city of Duncan, Oklahoma, United States. It was created in 1958 with an earthen dam. Its normal capacity is 14,041 acre-feet (17,319,000 m3) of water with an average depth of 40 feet (12 m). The lake covers 882 acres (3.57 km2) encompassed by 16.1 miles (25.9 km) of shoreline.[1][2][3][4][5][6] The lake is operated by the city of Duncan.