Scs-Cotton-Coon-Mission Cr Site-015 Reservoir Report

Last Updated: December 6, 2025

SCS-Cotton-Coon-Mission Cr Site-015, located in Washington County, Oklahoma, is a state-regulated earth dam designed by the USDA NRCS with a primary purpose of flood risk reduction.


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Summary

Completed in 1980, this dam stands at 38 feet in height and stretches 3250 feet in length, with a storage capacity of 1233 acre-feet. The dam, situated on TR-Coon Creek, plays a crucial role in mitigating flood risks in the area and is inspected annually to ensure its structural integrity.

With a high hazard potential and a very high risk assessment rating, SCS-Cotton-Coon-Mission Cr Site-015 is closely monitored for any potential safety concerns. Despite lacking a condition assessment rating, the dam is equipped with a controlled spillway and a single valve outlet gate. In case of emergencies, it is essential for the community to have an effective Emergency Action Plan (EAP) in place to mitigate risks and ensure the safety of residents in the event of a dam failure. As water resource and climate enthusiasts, understanding the importance of maintaining and monitoring infrastructure like SCS-Cotton-Coon-Mission Cr Site-015 is crucial in safeguarding our environment and communities from the impacts of extreme weather events.

Year Completed

1980

Dam Length

3250

Dam Height

38

River Or Stream

TR-COON CREEK

Primary Dam Type

Earth

Surface Area

30

Hydraulic Height

38

Nid Storage

1233

Structural Height

38

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Soil

Nid Height

38
       
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.