Scs-Little Washita River Site-42 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-42, located in Ninnekah, Oklahoma, is a state-regulated dam designed by the USDA NRCS for flood risk reduction on the TR-East Bills Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1969, this earthen dam stands at a height of 26 feet and spans a length of 715 feet. With a normal storage capacity of 35 acre-feet and a maximum discharge of 310 cubic feet per second, this dam serves as a crucial infrastructure for managing water resources in the area.
Despite being rated as having a low hazard potential, the risk assessment for SCS-Little Washita River Site-42 indicates a very high risk level, emphasizing the importance of regular inspections and maintenance. The dam features a controlled spillway with a width of 1 foot and an outlet gate consisting of a single valve. While the condition assessment is currently not rated, the dam's emergency action plan and risk management measures are not specified, highlighting the need for further evaluation and preparedness in case of emergencies.
With the Tulsa District overseeing its regulation and the OWRB as the state regulatory agency, SCS-Little Washita River Site-42 plays a crucial role in mitigating flood risks and ensuring water resource management in the Grady County area. As water resource and climate enthusiasts, understanding the infrastructure and maintenance of such dams is essential for promoting sustainable practices and protecting communities from potential hazards related to water management.
Year Completed |
1969 |
Dam Length |
715 |
Dam Height |
26 |
River Or Stream |
TR-EAST BILLS CR |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
24 |
Nid Storage |
132 |
Structural Height |
26 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
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-42
Scs Pond No. 26 Near Cyril