Scs-Rainy Mountain Creek Site-21 Reservoir Report
Last Updated: December 6, 2025
SCS-Rainy Mountain Creek Site-21, located in Kiowa County, Oklahoma, is a state-regulated earth dam designed by USDA NRCS for flood risk reduction on TR-Rainy Mountain Creek.
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Summary
Completed in 1965, this 19-foot tall structure spans 2400 feet and has a storage capacity of 338 acre-feet. The dam features a controlled spillway and a single valve outlet gate for water release.
Despite being classified as having a low hazard potential, the risk assessment for SCS-Rainy Mountain Creek Site-21 indicates a very high risk level. The dam is currently in a not rated condition, with the last inspection conducted in 1980. Emergency action plans and risk management measures are not currently in place, highlighting the need for updated assessments and preparations to ensure the safety and integrity of this critical water resource infrastructure.
For water resource and climate enthusiasts, the data for SCS-Rainy Mountain Creek Site-21 provides a fascinating insight into the history, design, and current status of this important flood risk reduction structure in Oklahoma. With its unique features and risk assessment challenges, this site presents an opportunity for further study and potential improvements to enhance its safety and functionality in the face of changing climate conditions.
Year Completed |
1965 |
Dam Length |
2400 |
Dam Height |
19 |
River Or Stream |
TR-RAINY MOUNTAIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
21 |
Hydraulic Height |
19 |
Nid Storage |
338 |
Structural Height |
19 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
19 |
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-Rainy Mountain Creek Site-21