Oknoname 30197 Reservoir Report

Last Updated: December 6, 2025

Oknoname 30197, located in Cherokee, Oklahoma, is a privately owned earth dam built in 1993 for irrigation purposes.


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Summary

Designed by Holloway Updike and Bellen, this dam stands at a height of 37 feet with a storage capacity of 106.8 acre-feet. Despite being regulated by the Oklahoma Water Resources Board, the dam has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment.

With a drainage area of 95 square miles and a maximum discharge capacity of 842 cubic feet per second, Oknoname 30197 is equipped with a controlled spillway and a single outlet gate valve. The dam's risk assessment categorizes it as having a very high risk level, making it essential for regular inspections. The last recorded inspection was in 2010, with an inspection frequency of every 5 years, indicating the need for ongoing monitoring and maintenance to ensure the safety and integrity of this vital irrigation infrastructure in Oklahoma.

Year Completed

1993

Dam Height

37

River Or Stream

NONE

Primary Dam Type

Earth

Hydraulic Height

37

Drainage Area

95

Nid Storage

106.8

Structural Height

37

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

37
       
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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.