Oknoname 089002 Reservoir Report

Last Updated: December 19, 2025

Oknoname 089002, located in McCurtain, Oklahoma, is a privately owned Earth dam with a primary purpose designated as "Other".


°F

°F

mph

Wind

%

Humidity

Summary

The dam stands at a height of 20 feet and has a hydraulic height of 17 feet, with a length of 360 feet. Completed in 1920, the dam has a maximum storage capacity of 198 acre-feet and a normal storage capacity of 168 acre-feet. It is regulated by the Oklahoma Water Resources Board and has a low hazard potential, while the risk assessment categorizes it as having a very high risk level.

The dam, situated on the TR-Goodwater Creek, falls under the jurisdiction of the Fort Worth District of the US Army Corps of Engineers. Despite being a privately owned structure, it is subject to state regulation, inspection, and enforcement. The dam features a controlled spillway with a width of 1 foot and an outlet gate in the form of a single valve. The last inspection of Oknoname 089002 was conducted in May 2010, with an inspection frequency of 5 years and a condition assessment of "Not Rated".

Overall, Oknoname 089002 serves as a vital component of the water resource management infrastructure in Oklahoma. With its historical significance dating back to the early 20th century, the dam continues to play a crucial role in flood control and water storage in the region. Its risk assessment highlights the importance of ongoing monitoring and maintenance to ensure the safety and integrity of the structure for both the local community and the surrounding environment.

Year Completed

1920

Dam Length

360

Dam Height

20

River Or Stream

TR-GOODWATER CR

Primary Dam Type

Earth

Hydraulic Height

17

Nid Storage

198

Structural Height

20

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

20
       
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.