Oknoname 22264 Reservoir Report

Last Updated: December 13, 2025

Oknoname 22264 is a privately owned dam located in Cleveland, Oklahoma, along the Stillwater Creek.


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Summary

Built in 1997, this earth dam stands at a height of 27 feet, serving a primary purpose that is classified as 'Other'. With a storage capacity of 65 acre-feet and a drainage area of 155 square miles, the dam has a controlled spillway with a width of 1 foot.

Although the dam is rated as having a low hazard potential, it poses a very high risk due to its critical importance in managing water resources in the area. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state inspections, enforcement, and permitting. The last inspection of the dam was conducted in December 2003, with an inspection frequency of every 5 years.

Despite the lack of a dam length or volume measurement, Oknoname 22264 remains a crucial structure for water resource management in the region. With its precise location, design details, and risk assessment in mind, this dam serves as a critical component in the overall climate resilience and water management efforts in Cleveland, Oklahoma.

Year Completed

1997

Dam Height

27

River Or Stream

STILLWATER CREEK

Primary Dam Type

Earth

Hydraulic Height

27

Drainage Area

155

Nid Storage

65

Structural Height

27

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

27
       
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.