Scs-Little Washita River Site-19 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-19 in Comanche, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS to primarily reduce flood risks along the TR-Little Washita River.
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Summary
Completed in 1977, this dam stands at a height of 30 feet and has a hydraulic height of 28 feet, providing maximum storage of 305 acre-feet and a normal storage capacity of 67 acre-feet. With a low hazard potential and a controlled spillway type, this dam has a very high risk assessment rating, highlighting its importance in mitigating potential risks.
Located in the Tulsa District and managed by the Natural Resources Conservation Service, this dam features a valve outlet gate and a spillway width of 1 foot. Despite its construction over four decades ago, the dam's condition assessment remains unrated, with its last inspection dating back to January 1, 1980. The site's risk management measures and emergency action plan status are currently undisclosed, leaving room for further exploration and evaluation by water resource and climate enthusiasts interested in the site's regulatory oversight and operational effectiveness.
With its unique design and purposeful construction, SCS-Little Washita River Site-19 stands as a critical infrastructure for flood risk reduction in the region, warranting ongoing attention and inspection to ensure its continued functionality and safety. As an essential component of water resource management in the area, this dam serves as a testament to the collaborative efforts between state agencies and federal designers like the USDA NRCS in safeguarding communities and ecosystems along the Little Washita River.
Year Completed |
1977 |
Dam Length |
880 |
Dam Height |
30 |
River Or Stream |
TR-LITTLE WASHITA RIVER |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
28 |
Nid Storage |
305 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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-19
Scs Pond No. 26 Near Cyril