Scs-Little Washita River Site-29 Reservoir Report
Last Updated: December 6, 2025
SCS-Little Washita River Site-29, located in Rocky Ford, Oklahoma, is a state-regulated flood risk reduction structure designed by USDA NRCS in 1976.
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Summary
The dam, made of stone with a soil foundation, stands at a height of 37 feet and spans a length of 1300 feet. It serves the primary purpose of flood risk reduction along the TR-Little Washita River, with a drainage area of 1.4 square miles and a normal storage capacity of 78 acre-feet.
Despite being classified as having a low hazard potential, the risk assessment for SCS-Little Washita River Site-29 indicates a very high level of risk (1 out of 5) due to its location and potential impact on surrounding areas in the event of a failure. The dam is equipped with a controlled spillway and one outlet gate, but its condition assessment is currently not rated, with the last inspection taking place in 1980. The structure is under the jurisdiction of the Oklahoma Water Resources Board (OWRB), with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
Overall, SCS-Little Washita River Site-29 is a crucial piece of infrastructure for managing flood risks in the region, with a storage capacity of 329 acre-feet and a maximum discharge of 1134 cubic feet per second. As water resource and climate enthusiasts, it's important to monitor the condition and maintenance of such structures to safeguard communities and ecosystems against potential flood hazards and ensure sustainable water management practices in the face of changing climate conditions.
Year Completed |
1976 |
Dam Length |
1300 |
Dam Height |
37 |
River Or Stream |
TR-LITTLE WASHITA RIVER |
Surface Area |
13 |
Hydraulic Height |
37 |
Drainage Area |
1.4 |
Nid Storage |
329 |
Structural Height |
37 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
37 |
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.
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