Oknoname 137027 Reservoir Report
Nearby: Oknoname 137028 Annie Jones
Last Updated: December 8, 2025
Oknoname 137027 is a privately owned earth dam located in Stephens, Oklahoma, near the TR Wildhorse Creek.
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Summary
Completed in 1970, this dam stands at a height of 35 feet and has a hydraulic height of 29 feet. With a storage capacity of 116 acre-feet, it serves multiple purposes beyond flood control, making it a versatile water resource structure in the region. The dam has a controlled spillway type with a width of 1 foot and is equipped with a single valve outlet gate for water release.
Despite its low hazard potential, Oknoname 137027 is considered to have a very high risk due to its age and potential impact on downstream areas. The dam has not been rated for its condition assessment, and the last inspection was conducted in September 2011. While it meets state regulations and is regularly inspected, there is a need for further risk management measures to ensure the safety and stability of the structure. As a key part of the water infrastructure in the area, maintaining the integrity of Oknoname 137027 is crucial for both water resource management and climate resilience efforts in the region.
In the event of an emergency, the dam does not have an Emergency Action Plan (EAP) prepared, which raises concerns about response procedures in case of a breach or failure. With a limited history of modifications and no designated federal oversight, the responsibility for the upkeep and monitoring of Oknoname 137027 falls solely on the private owner. As water resource and climate enthusiasts, it is essential to advocate for increased attention to the maintenance and safety protocols of dams like Oknoname 137027 to mitigate potential risks and ensure the sustainable management of vital water resources.
Year Completed |
1970 |
Dam Length |
590 |
Dam Height |
35 |
River Or Stream |
TR WILDHORSE CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
29 |
Nid Storage |
116 |
Structural Height |
35 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
Seasonal Comparison
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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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