Scs-Little Washita River Site-32 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-32 is a state-regulated earth dam located in Cedar Grove, Oklahoma, designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1970, this dam stands at a height of 39 feet with a hydraulic height of 37 feet, providing a maximum storage capacity of 359 acre-feet and a normal storage capacity of 81 acre-feet. With a controlled spillway and a low hazard potential, this structure plays a crucial role in managing water resources in the area.
The dam overlooks the TR-Little Washita River and is under the jurisdiction of the OWRB, with state permitting, inspection, and enforcement in place. While the last inspection dates back to 1985, the risk assessment indicates a very high risk level (1), necessitating proactive risk management measures. The site's location within Comanche County, Oklahoma, highlights its importance in mitigating flood risks and ensuring water resource sustainability in the region.
As water resource and climate enthusiasts, the SCS-Little Washita River Site-32 presents an intriguing case study of dam infrastructure designed for flood risk reduction. With its earth dam structure, stone core types, and soil foundations, this site showcases the collaborative efforts of the Natural Resources Conservation Service in safeguarding the local community from potential inundation events. The data provides valuable insights into the dam's specifications, maintenance status, and risk assessment, emphasizing the critical role it plays in water management and disaster resilience efforts in Oklahoma.
Year Completed |
1970 |
Dam Length |
1070 |
Dam Height |
39 |
River Or Stream |
TR-LITTLE WASHITA RIVER |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
37 |
Nid Storage |
359 |
Structural Height |
39 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
39 |
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-32
Scs Pond No. 26 Near Cyril