Oknoname 137020 Reservoir Report

Last Updated: December 8, 2025

Oknoname 137020 is a privately owned dam located in Payne School, Oklahoma, along the TR Wildhorse Creek.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1950, this earth dam stands at 24 feet tall and has a maximum storage capacity of 95 acre-feet. With a controlled spillway and a low hazard potential, this structure is regulated by the Oklahoma Water Resources Board and undergoes regular inspections to ensure its safety and compliance with state regulations.

Despite being a relatively small dam, Oknoname 137020 poses a very high risk, according to assessments, emphasizing the importance of its maintenance and management. The dam features a single valve outlet gate and has not been modified since its construction. While its condition is currently not rated, the dam's risk management measures and emergency action plans are not clearly documented, raising concerns for potential future incidents.

As an essential water resource infrastructure in Stephens County, Oklahoma, Oknoname 137020 serves a crucial purpose in water management and flood control. With its history dating back to the mid-20th century, this dam plays a vital role in regulating water flow and storage in the region, highlighting the significance of proper monitoring and upkeep to ensure its continued functionality and safety for the surrounding community and environment.

Year Completed

1950

Dam Length

700

Dam Height

24

River Or Stream

TR WILDHORSE CREEK

Primary Dam Type

Earth

Hydraulic Height

21

Nid Storage

95

Structural Height

24

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

24
       
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.