| Fort Cobb Reservoir | |
|---|---|
 | |
  Fort Cobb Reservoir  Fort Cobb Reservoir | |
| Location | Caddo County, Oklahoma |
| Coordinates | 35°12′N 98°29′W / 35.200°N 98.483°W |
| Lake type | reservoir |
| Primary inflows | Cobb Creek, Lake Creek |
| Basin countries | United States |
| Surface area | 4,000 acres (1,600 ha) |
| Water volume | 143,700 acre-feet (177,300,000 m3) |
| Shore length1 | 45 mi (72 km) |
| Surface elevation | 1,342 feet (409 m) |
| Settlements | Fort Cobb, Oklahoma Carnegie, Oklahoma |
| 1 Shore length is not a well-defined measure. | |
Fort Cobb Reservoir (also called Fort Cobb Lake) is a reservoir located in Caddo County in the U.S. state of Oklahoma. It impounds the waters of Cobb Creek (joining from the west),[1][2] Lake Creek (joining from the north),[3] and Willow Creek (joining from the northeast).[4] The lake covers approximately 4,000 acres (16 km2) of water and 45 mi (72 km) of shoreline. Its drainage area is 285 square miles (740 km2). It was constructed in 1958. The towns of Carnegie, Fort Cobb, and Eakly are located nearby.
Fort Cobb Dam is on Cobb Creek about 5 miles (8.0 km) north of Fort Cobb, and roughly 5 miles (8.0 km) above the confluence of Cobb Creek with the Washita River. The dam is a zoned earthfill structure containing 3,569,185 cubic yards (2,729,000 m3) of embankment. The crest width is 30 feet (9.1 m), and the crest length is 9,900 feet (3.0 km). The structural height of the dam is 122 feet (37 m).
Fort Cobb Reservoir has a total capacity of 143,740 acre-feet (177,300,000 m3) and covers an area of 5,956 acres (24.10 km2) at top of flood pool level. The uncontrolled morning-glory spillway in the left abutment consists of a concrete intake structure, concrete conduit, and concrete chute and stilling basin.
The Fort Cobb Reservoir is part of the Washita Basin Project of the Bureau of Reclamation, which also includes Foss Reservoir on the Washita River in Custer County, along with numerous small flood-control structures on creeks and streams. Municipal and industrial water is supplied to the city of Anadarko and Western Farmers Electric Cooperative through the Anadarko Aqueduct which begins at the Fort Cobb Reservoir.[5]
- ^ "Cobb Creek (focus on joinder with Fort Cobb Lake)". Google Maps. Retrieved August 4, 2021.
- ^ "Fort Cobb Lake, Oklahoma". Google Maps. Retrieved August 4, 2021.
- ^ "Lake Creek, Oklahoma". Google Maps. Retrieved August 7, 2021.
- ^ "Willow Creek, Oklahoma". Google Maps. Retrieved August 7, 2021.
- ^ "Washita Basin Project. Retrieved on 2016-10-07". Archived from the original on 2016-03-03. Retrieved 2016-10-07.