Oknoname 30198 Reservoir Report

Last Updated: December 20, 2025

Oknoname 30198, located in Beaver, Oklahoma, is a privately owned dam regulated by the Oklahoma Water Resources Board.


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Summary

Built in 1950 by the USDA NRCS, this earth dam on Spring Creek stands at 38 feet high and has a storage capacity of 120 acre-feet. With a controlled spillway and a hazard potential rated as low, this dam serves multiple purposes beyond flood control or water supply.

Despite its age, Oknoname 30198 has not been fully assessed for its condition and lacks emergency action plans or risk management measures. However, with a very high risk assessment rating, there is a need for further evaluation and preparation for potential emergencies. The dam's last inspection was conducted in 2010, with a recommended inspection frequency of 5 years. With its location in a high-risk area, stakeholders must prioritize safety measures and ensure that the dam meets regulatory guidelines to protect the surrounding community and the environment.

Year Completed

1950

Dam Length

600

Dam Height

38

River Or Stream

SPRING CREEK

Primary Dam Type

Earth

Surface Area

10

Hydraulic Height

17

Drainage Area

6.25

Nid Storage

120

Structural Height

30

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

38
       
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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.