Oknoname 129001 Reservoir Report

Last Updated: January 11, 2026

Oknoname 129001 is a privately-owned dam located in Roger Mills County, Oklahoma, with a primary purpose classified as 'Other'.


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Summary

Constructed in 1969, this Earth-type structure stands at 25 feet tall and spans 700 feet in length, providing a storage capacity of 150 acre-feet. The dam's hydraulic height is 20 feet, with a maximum discharge capacity of 3680 cubic feet per second. The spillway is designed as 'Controlled' with a width of 1 foot, and it features a single valve outlet gate.

Despite being assessed with a low hazard potential, Oknoname 129001 is considered to have a very high risk rating, indicating the importance of regular inspections and maintenance. The dam is regulated by the Oklahoma Water Resources Board, with state jurisdiction and permitting in place for enforcement and inspection. While the structure has not been rated for its condition, the last inspection was conducted in November 2010, with a recommended inspection frequency of every five years to ensure the safety and integrity of the dam.

With its location along the Bois D Arc Creek and under the oversight of the Tulsa District US Army Corps of Engineers, Oknoname 129001 serves as a crucial component of water resource management in the region. As an Earth-type dam with a stone core and soil foundation, it highlights the intersection of infrastructure, climate resilience, and environmental stewardship in safeguarding communities against flooding and ensuring sustainable water supply.

Year Completed

1969

Dam Length

700

Dam Height

25

River Or Stream

BOIS D ARC CR

Primary Dam Type

Earth

Hydraulic Height

20

Nid Storage

150

Structural Height

25

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

25
       
Seasonal Comparison

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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.