Oknoname 087037 Reservoir Report

Last Updated: December 14, 2025

Oknoname 087037, located in McClain County, Oklahoma, is a privately owned earth dam constructed in 1950 for multiple purposes.


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Summary

Standing at a height of 22 feet and spanning 240 feet in length, this dam has a storage capacity of 198 acre-feet and a maximum discharge rate of 1440 cubic feet per second. The dam, situated on TR-WALNUT CR, is regulated by the Oklahoma Water Resources Board and undergoes regular inspections, with a low hazard potential rating and a very high risk assessment.

Despite being a privately owned structure, Oknoname 087037 plays a crucial role in managing water resources in the region and mitigating floods along the Walnut Creek. The dam's controlled spillway and valve outlet gate ensure efficient water flow control, while its well-maintained condition and adherence to state regulatory standards demonstrate a commitment to safety and environmental protection. With a close proximity to Purcell and within the jurisdiction of the Tulsa District, this dam serves as a vital infrastructure for water management and flood control in the area.

As a key component of the local water infrastructure, Oknoname 087037 stands as a testament to the collaboration between private owners and state agencies in safeguarding water resources. With its strategic location and regulated operations, this earth dam not only provides essential water storage and flood protection but also highlights the importance of effective dam management in addressing climate challenges. As enthusiasts of water resources and climate resilience, monitoring and supporting structures like Oknoname 087037 are crucial in ensuring sustainable water management practices and adaptation to changing environmental conditions.

Year Completed

1950

Dam Length

240

Dam Height

22

River Or Stream

TR-WALNUT CR

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

22

Nid Storage

198

Structural Height

22

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
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.