Foss Reservoir is located near Foss, Oklahoma, and was constructed in the 1950s by the U.S.
Wind
Humidity
Bureau of Reclamation for flood control and irrigation purposes. The reservoir has a storage capacity of 254,800 acre-feet of water and is fed by the Washita River. The hydrology of the reservoir is influenced by specific surface flows from the Washita River and snowpack providers during the winter months. The reservoir provides irrigation water for agriculture in the surrounding area and also offers recreational activities such as fishing, boating, and camping. The Foss Reservoir Dam, which is approximately 3,500 feet long and 117 feet high, was rehabilitated in the 1990s to ensure its safety and continued use.
| Gage Height, Ft 24hr Change | 0.0% |
| Percent of Normal | 100% |
| Minimum |
1,636.06 ft
2023-04-25 |
| Maximum |
1,642.48 ft
2025-06-19 |
| Average | 1,639 ft |
| Dam_Height | 142 |
| Hydraulic_Height | 128 |
| Drainage_Area | 1466 |
| Year_Completed | 1961 |
| Nid_Storage | 816888 |
| Structural_Height | 142 |
| Surface_Area | 13141 |
| Hazard_Potential | High |
| Outlet_Gates | Valve - 1 |
| River_Or_Stream | WASHITA RIVER |
| Dam_Length | 18130 |
| Primary_Dam_Type | Earth |
| Nid_Height | 142 |
Washita River Near Foss
|
6cfs |
Washita River Near Hammon
|
10cfs |
Washita River Near Clinton
|
30cfs |
Washita River Near Cheyenne
|
9cfs |
North Fork Red River Near Carter
|
24cfs |
Cobb Creek Near Eakly
|
16cfs |