Oknoname 059056 Reservoir Report

Last Updated: December 22, 2025

Oknoname 059056, located in Harper County, Oklahoma, is a privately owned earth dam built in 1960 with a primary purpose that falls under the category of "Other." The dam stands at a height of 28 feet and has a storage capacity of 50 acre-feet, with a normal storage level of 25 acre-feet.


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Summary

This dam, situated along TR Buffalo Creek, serves as a crucial water resource structure in the region, regulated by the Oklahoma Water Resources Board.

Despite being categorized with a low hazard potential, Oknoname 059056 poses a very high risk due to its condition assessment being labeled as "Not Rated." The dam features a controlled spillway and one outlet gate, with a valve, and is subject to inspections every five years. The last inspection was conducted in August 2011, highlighting the importance of regular monitoring and maintenance to ensure the safety and integrity of the structure in the face of potential climate-related challenges.

With a risk management plan yet to be detailed and a lack of emergency action preparedness, Oknoname 059056 stands as a critical focal point for water resource and climate enthusiasts. As concerns over the impact of climate change on infrastructure grow, the need for proactive strategies and investments in the resilience of structures like Oknoname 059056 becomes increasingly urgent to safeguard against potential risks and ensure the sustainable management of water resources in the region.

Year Completed

1960

Dam Length

320

Dam Height

28

River Or Stream

TR BUFFALO CR

Primary Dam Type

Earth

Hydraulic Height

28

Nid Storage

50

Structural Height

28

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

28
       
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.