Oknoname 137061 Reservoir Report

Last Updated: December 6, 2025

Oknoname 137061 is a privately owned dam located in Stephens, Oklahoma, specifically situated at the ST HWY 7 BRIDGE over the TR LITTLE BEAVER CREEK.


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Summary

Built in 1955, this Earth-type dam stands at a height of 30 feet and has a hydraulic height of 24 feet, with a structural height matching the dam's total height. With a length of 600 feet and a storage capacity of 297 acre-feet, this dam serves a primary purpose that is categorized as "Other," along with its dam type, core type, and foundation material being Earth, Stone, and Soil, respectively.

Managed by the Oklahoma Water Resources Board (OWRB), Oknoname 137061 has been inspected periodically, with the last recorded inspection dating back to September 2, 2011. Designated as having low hazard potential and a risk assessment rating of "Very High (1)," this dam is equipped with a controlled spillway and a single valve outlet gate. Despite not having a condition assessment rating, the dam's overall risk management measures and emergency action plan status remain undisclosed, leaving room for potential improvements in the future. In the realm of water resource and climate enthusiasts, the nuances of Oknoname 137061's structure and management provide valuable insights into the complex interplay between infrastructure, environmental factors, and regulatory oversight.

Year Completed

1955

Dam Length

600

Dam Height

30

River Or Stream

TR LITTLE BEAVER CREEK

Primary Dam Type

Earth

Surface Area

14

Hydraulic Height

24

Nid Storage

297

Structural Height

30

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
Seasonal Comparison

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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.