Scs-Little Washita River Site-46 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-46, located in Ninnekah, Oklahoma, is a state-regulated dam designed by the USDA NRCS for flood risk reduction on Hog Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1972, this earth dam stands at a height of 23 feet with a hydraulic height of 21 feet and a length of 1120 feet. With a maximum storage capacity of 357 acre-feet and a normal storage of 96 acre-feet, this dam serves a vital role in managing water resources in the area.
Despite its low hazard potential, SCS-Little Washita River Site-46 is classified as having a very high risk due to its age and lack of recent condition assessments. The dam features a controlled spillway with a width of 1 foot and a single valve outlet gate. While the dam is not rated for condition, its inspection frequency is set at 5 years, with the last inspection date recorded in 1980. With its strategic location and purpose, this dam plays a crucial role in mitigating flood risks and protecting downstream communities from potential water-related disasters.
As water resource and climate enthusiasts, the significance of SCS-Little Washita River Site-46 cannot be overstated. It stands as a testament to the ongoing efforts to manage water resources effectively and mitigate the impacts of extreme weather events in the region. With its storied history and continued regulatory oversight, this dam serves as a beacon of resilience in the face of a changing climate and evolving water management challenges.
Year Completed |
1972 |
Dam Length |
1120 |
Dam Height |
23 |
River Or Stream |
HOG CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
21 |
Nid Storage |
357 |
Structural Height |
23 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Scs-Little Washita River Site-46