Oknoname 22265 Reservoir Report

Last Updated: December 17, 2025

Oknoname 22265 is a privately owned dam located in Logan, Oklahoma, along Otter Creek.


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Summary

Built in 1993, this earth dam stands at a height of 29 feet and spans 400 feet in length. With a storage capacity of 30 acre-feet and a drainage area of 71 square miles, this dam serves multiple purposes and is classified as low hazard potential with a very high risk assessment rating.

Managed by the Oklahoma Water Resources Board, Oknoname 22265 is regulated, permitted, inspected, and enforced by the state. The controlled spillway and valve outlet gate ensure proper water management and safety measures. Despite being in operation for nearly three decades, the condition assessment of this dam has not been rated, highlighting the need for further evaluation and risk management measures to mitigate potential hazards.

Although the dam has not been modified in recent years and lacks certain emergency preparedness protocols, its overall risk assessment remains a top priority. With the potential for high discharge levels and a significant drainage area, continuous monitoring and maintenance are crucial to ensure the safety and integrity of Oknoname 22265 for both water resource and climate enthusiasts in the region.

Year Completed

1993

Dam Length

400

Dam Height

29

River Or Stream

OTTER CREEK

Primary Dam Type

Earth

Surface Area

3

Hydraulic Height

29

Drainage Area

71

Nid Storage

30

Structural Height

29

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

29
       
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.