Oknoname 051038 Reservoir Report

Last Updated: December 8, 2025

Oknoname 051038, located in Grady County, Oklahoma, is a privately owned Earth dam with a height of 22 feet and a hydraulic height of 10 feet.


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Summary

Built in 1960, this dam serves as a vital structure for the community, with a storage capacity of 90 acre-feet and a maximum discharge of 4560 cubic feet per second. The dam, situated on the TR-Worley Creek, has a controlled spillway and a low hazard potential, making it a relatively safe structure for water resource management.

Although the dam's condition is currently rated as 'Not Rated', it is inspected every 5 years to ensure its safety and functionality. Despite its low hazard potential, the risk assessment for Oknoname 051038 indicates a very high risk level, indicating the need for proactive risk management measures. With a single valve outlet gate and a surface area of 4 acres, this dam plays a crucial role in regulating water flow and storage in the area, highlighting its importance for water resource enthusiasts and climate advocates alike.

Overall, Oknoname 051038 stands as a significant Earth dam in Norman, Oklahoma, with a rich history dating back to the 1960s. Managed by a private owner and regulated by the Oklahoma Water Resources Board, this dam exemplifies the intersection of human infrastructure and natural resources, showcasing the delicate balance needed to maintain water security in the face of climate challenges. As a key structure on the TR-Worley Creek, this dam's management, inspection, and risk assessment are essential considerations for those passionate about sustainable water resource management and climate resilience.

Year Completed

1960

Dam Length

450

Dam Height

22

River Or Stream

TR-WORLEY CREEK

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

10

Nid Storage

90

Structural Height

22

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

22
       
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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.