Oknoname 031013 Reservoir Report

Last Updated: December 6, 2025

Oknoname 031013 is a private earth dam located in Comanche, Oklahoma, along the TR-Beaver Creek.


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Summary

Completed in 1964, the dam stands at a height of 25 feet and has a storage capacity of 70 acre-feet. It serves a primary purpose of "Other" and is regulated by the Oklahoma Water Resources Board, with state permitting, inspection, and enforcement in place.

The dam has a controlled spillway and is equipped with a single valve outlet gate. Despite being rated as having low hazard potential, it has a very high risk assessment ranking due to its condition not being rated and potential risks associated with its age and design. The last inspection took place in September 2010, with an inspection frequency of every 5 years. The dam is under the jurisdiction of the Tulsa District of the US Army Corps of Engineers and is not currently associated with any federal agencies for funding or oversight.

Water resource and climate enthusiasts will find Oknoname 031013 to be an intriguing case study of a privately owned dam in Oklahoma. With its unique characteristics and risk assessment, there is much to learn about the challenges and responsibilities of managing water infrastructure in the state. The dam's location in the scenic area of Coxs Corner adds to its appeal as a point of interest for those interested in water resource management and conservation efforts in the region.

Year Completed

1964

Dam Length

520

Dam Height

25

River Or Stream

TR-BEAVER CREEK

Primary Dam Type

Earth

Hydraulic Height

25

Nid Storage

70

Structural Height

25

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

25
       
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.