Scs-Little Washita River Site-13 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-13, located in Ninnekah, Oklahoma, is a state-regulated earth dam along the Charlie Creek.
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Summary
Built in 1978 by the NRCS, this structure stands at 35 feet high and serves the primary purpose of flood risk reduction. With a maximum storage capacity of 282 acre-feet and a normal storage of 59 acre-feet, this dam plays a crucial role in managing water levels and mitigating flood risks in the area.
Despite being classified as having a low hazard potential and not yet rated for its condition assessment, SCS-Little Washita River Site-13 is regularly inspected every 5 years to ensure its structural integrity. The dam features a controlled spillway and a single valve outlet gate for water release. In case of emergencies, the presence of an Emergency Action Plan (EAP) and designated emergency contacts are essential for swift and effective response. Additionally, the risk assessment for this site indicates a very high risk level, emphasizing the importance of ongoing monitoring and risk management measures to safeguard the surrounding community and environment.
With its strategic location and vital role in flood risk reduction, SCS-Little Washita River Site-13 serves as a critical infrastructure for water resource management in the Grady County, Oklahoma area. As climate change continues to impact precipitation patterns and water availability, the importance of well-maintained dams like this one for ensuring water security and disaster resilience cannot be overstated. By staying vigilant, implementing effective risk management strategies, and prioritizing infrastructure maintenance, this site can continue to effectively serve its purpose and protect the local community from the impacts of extreme weather events.
Year Completed |
1978 |
Dam Length |
1150 |
Dam Height |
35 |
River Or Stream |
CHARLIE CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
33 |
Nid Storage |
282 |
Structural Height |
35 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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-13