Oknoname 149040 Reservoir Report

Last Updated: December 6, 2025

Oknoname 149040 is a privately owned dam located in Mountain View, Oklahoma, with a primary purpose of flood risk reduction.


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Summary

Constructed in 1980 by the USDA NRCS, this earth dam stands at a height of 32 feet and has a hydraulic height of 27 feet, providing a storage capacity of 127 acre-feet. Situated on the TR-Friendship river, this dam is regulated by the Oklahoma Water Resources Board and is subject to state permitting, inspection, and enforcement.

Despite its low hazard potential, Oknoname 149040 is considered to have a very high risk level, with a risk assessment rating of 1. The dam features a controlled spillway and a single valve outlet gate. Although the condition of the dam is currently not rated, the last inspection took place in August 2006, with an inspection frequency of every 5 years. The dam does not have an emergency action plan in place, but it meets state guidelines for risk management measures.

Overall, Oknoname 149040 serves as a vital infrastructure for flood risk reduction in Washita County, Oklahoma. With its state-regulated status and risk assessment in place, this dam plays a crucial role in managing water resources and mitigating potential hazards in the region.

Year Completed

1980

Dam Length

470

Dam Height

32

River Or Stream

TR-FRIENDSHIP

Primary Dam Type

Earth

Hydraulic Height

27

Nid Storage

127

Structural Height

32

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

32
       
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.