Scs-Big Kiowa Creek Site-4 Reservoir Report
Last Updated: December 7, 2025
SCS-Big Kiowa Creek Site-4, located in Hammon, Oklahoma, is a state-regulated earth dam constructed in 1953 by the USDA NRCS for flood risk reduction along the TR-Big Kiowa Creek.
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Summary
Standing at a height of 31 feet and with a length of 950 feet, this dam has a storage capacity of 491 acre-feet and a maximum discharge rate of 514 cubic feet per second. The dam features a controlled spillway with a width of 2 feet and is primarily designed for flood risk reduction purposes.
Despite being classified as having a low hazard potential, the risk assessment for SCS-Big Kiowa Creek Site-4 indicates a very high risk level. The dam has not been rated for its current condition, with the last inspection dating back to 1980. The emergency action plan status and adherence to guidelines are unknown, raising concerns about the readiness and response capabilities in case of an emergency. With the dam being under state jurisdiction and subject to state permitting, inspection, and enforcement, it is crucial for proper risk management measures to be implemented to ensure the safety and integrity of this structure for both the local community and the environment.
Year Completed |
1953 |
Dam Length |
950 |
Dam Height |
31 |
River Or Stream |
TR-BIG KIOWA CREEK |
Primary Dam Type |
Earth |
Surface Area |
22 |
Hydraulic Height |
31 |
Nid Storage |
491 |
Structural Height |
31 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
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-Big Kiowa Creek Site-4