Comanche Reservoir Report
Nearby: Oknoname 137084 Morgan L.T.
Last Updated: December 8, 2025
Comanche is a vital water supply dam located in Stephens, Oklahoma, serving the local community of Courtney.
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Summary
Built in 1960, this earth dam stands at a height of 50 feet and has a storage capacity of 3800 acre-feet, with a normal storage level of 2500 acre-feet. The dam's primary purpose is to provide water supply, drawing from the TR-South Fork Deer Creek. It has a spillway width of 4 feet and a maximum discharge capacity of 1180 cubic feet per second, with a controlled spillway type.
Despite being classified as having a high hazard potential, Comanche is currently assessed to be in fair condition, with regular inspections and maintenance conducted by the Oklahoma Water Resources Board. The dam is regulated and permitted by the state, with enforcement and inspection protocols in place to ensure its structural integrity and safety. Comanche's risk assessment indicates a very high risk level (1), prompting the need for effective risk management measures to be implemented to safeguard the surrounding community and water resources. Overall, Comanche plays a crucial role in providing reliable water supply to the region, highlighting the importance of sustainable water resource management for climate enthusiasts and stakeholders alike.
Year Completed |
1960 |
Dam Length |
1500 |
Dam Height |
50 |
River Or Stream |
TR-SOUTH FORK DEER CR |
Primary Dam Type |
Earth |
Surface Area |
184 |
Hydraulic Height |
35 |
Nid Storage |
3800 |
Structural Height |
50 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
50 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
East Cache Creek Near Walters
|
26cfs |
Mud Creek Near Courtney
|
0cfs |
Wichita Rv Nr Charlie
|
1850cfs |
Deep Red Creek Near Randlett
|
0cfs |
Red Rv Nr Terral
|
176cfs |
Little Washita River Near Cement
|
8cfs |
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.
Comanche