Scs-Little Washita River Site-30 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-30, located in Comanche, Oklahoma, is a significant water resource managed by the USDA NRCS.
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Summary
This state-regulated dam on the TR-Little Washita River was completed in 1981 and serves multiple purposes, with a primary focus on water conservation and management. With a height of 43 feet and a length of 1000 feet, this dam has a storage capacity of 226 acre-feet, providing crucial support for irrigation and flood control in the region.
The dam boasts a low hazard potential and has not been rated for its condition assessment. However, it undergoes regular inspections every 5 years to ensure its structural integrity and efficiency. In the event of an emergency, such as a potential breach or overflow, the dam is equipped with a controlled spillway and a valve outlet gate for controlled water release. Despite the low hazard potential, a very high risk assessment indicates the importance of proactive risk management measures to safeguard the surrounding area and downstream communities.
Overall, SCS-Little Washita River Site-30 stands as a vital component of water resource management in Oklahoma, providing essential support for agricultural activities, flood control, and water conservation efforts. Its strategic location and design demonstrate a commitment to sustainable water management practices and the protection of communities and ecosystems downstream. As climate change impacts water resources, the significance of such dams in ensuring water security and resilience becomes increasingly evident.
Year Completed |
1981 |
Dam Length |
1000 |
Dam Height |
43 |
River Or Stream |
TR-LITTLE WASHITA RIVER |
Surface Area |
6 |
Hydraulic Height |
43 |
Drainage Area |
1.08 |
Nid Storage |
226 |
Structural Height |
43 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
43 |
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-30
Scs Pond No. 26 Near Cyril