Oknoname 137091 Reservoir Report

Last Updated: December 8, 2025

Oknoname 137091, located in Stephens County, Oklahoma, is a privately owned earth dam on TR Clear Creek with a primary purpose designated as "Other." Completed in 1970, this dam stands at a height of 47 feet and has a storage capacity of 7,050 acre-feet.


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Summary

With a surface area of 5 acres and a controlled spillway, this structure is regulated and inspected by the Oklahoma Water Resources Board, ensuring its safety and functionality.

Despite being classified as having a low hazard potential, Oknoname 137091 is considered to have a very high risk due to its condition assessment being labeled as "Not Rated." The dam features a single valve outlet gate and has a history of regular inspections, with the last one conducted in August 2011. While the risk level is high, there are currently no emergency action plans (EAP) in place, raising concerns about the preparedness and response measures in case of a potential breach or failure.

With a risk management summary indicating a very high risk level and a lack of updated emergency response protocols, Oknoname 137091 poses a potential threat to the surrounding area in the event of a disaster. As water resource and climate enthusiasts, it is paramount to monitor and address the safety and maintenance of such critical infrastructure to ensure the protection of lives and properties downstream.

Year Completed

1970

Dam Length

1170

Dam Height

47

River Or Stream

TR CLEAR CREEK

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

47

Nid Storage

7050

Structural Height

47

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

47
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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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Area Campgrounds