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Foss is a federal dam located in Clinton, Oklahoma on the Washita River, managed by the Bureau of Reclamation. Constructed in 1961, Foss serves as a flood risk reduction structure with a primary purpose of mitigating potential disasters in the region. Standing at a height of 142 feet and a length of 18,130 feet, Foss offers significant storage capacity, with a normal storage level of 168,732 acre-feet and a maximum storage capacity of 816,888 acre-feet.
The dam's spillway is controlled, with a width of 4 feet, and features a single valve as an outlet gate. Foss has a high hazard potential and is classified as having a very high risk assessment. Despite its critical role in flood risk reduction, the dam's condition assessment is currently listed as "Not Available," suggesting a need for further evaluation and maintenance to ensure its continued safety and efficacy. With its strategic location and significant storage capacity, Foss plays a vital role in water resource management and climate resilience efforts in the region.
As a key asset managed by the Bureau of Reclamation, Foss undergoes regular inspections, with the last inspection conducted in June 2020. The dam's Emergency Action Plan (EAP) status is not available, indicating a potential area for improvement in emergency preparedness and response. Despite these challenges, Foss remains a crucial infrastructure for flood control and water storage in Custer County, Oklahoma, highlighting the importance of continued monitoring and maintenance to safeguard the surrounding communities and environment from potential risks and hazards.
Gage Height, Ft 24hr Change | 0% |
Percent of Normal | 100% |
Minimum |
1,636.06 ft
2023-04-25 |
Maximum |
1,642.01 ft
2020-01-20 |
Average | 1,639 ft |
Dam_Height | 142 |
Hydraulic_Height | 128 |
Drainage_Area | 1466 |
Year_Completed | 1961 |
Nid_Storage | 816888 |
Structural_Height | 142 |
Primary_Dam_Type | Earth |
Surface_Area | 13141 |
Hazard_Potential | High |
Outlet_Gates | Valve - 1 |
River_Or_Stream | WASHITA RIVER |
Dam_Length | 18130 |
Nid_Height | 142 |
Discharge | Stage | Elevation | |
SALT FORK ARKANSAS RIVER NR ALVA
2025-02-06T04:30:00.000-06:00 |
69cfs | 2.84ft | 1300ft |
BLUFF CREEK NR BUTTERMILK
2025-02-06T04:00:00.000-06:00 |
32cfs | 6.07ft | 1711ft |
CIMARRON RIVER NEAR WAYNOKA
2025-02-06T04:30:00.000-06:00 |
109cfs | 6.06ft | 1372ft |
CIMARRON RIVER NEAR BUFFALO
2025-02-06T03:30:00.000-06:00 |
85cfs | 3.95ft | 1613ft |
NORTH CANADIAN RIVER AT WOODWARD
2025-02-06T04:00:00.000-06:00 |
82cfs | 3.66ft | 1851ft |
CIMARRON R NEAR BUTTERMILK
2025-02-06T04:15:00.000-06:00 |
49cfs | 8.35ft | 1713ft |
MEDICINE LODGE R NR KIOWA
2025-02-06T04:30:00.000-06:00 |
98cfs | 0.23ft | 1289ft |