Scs-Upper Washita Creek Site-060 Reservoir Report

Last Updated: December 10, 2025

SCS-Upper Washita Creek Site-060, located in Roger Mills County, Oklahoma, is a state-regulated earth dam constructed in 1963 for flood risk reduction along TR-Croton Creek.


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Summary

Managed by the USDA NRCS, this dam stands at 45 feet in height with a storage capacity of 305 acre-feet and a surface area of 12 acres. With a controlled spillway and one valve outlet gate, the dam has a significant hazard potential and is assessed to be in fair condition.

The dam, designed by the Natural Resources Conservation Service, is inspected every three years to ensure its structural integrity and overall safety. The risk assessment for this site is classified as very high, indicating the potential for severe consequences in the event of a breach. With a hydraulic height of 41 feet and a maximum discharge of 2580 cubic feet per second, this dam plays a crucial role in protecting the surrounding area from flooding and managing water resources in the region.

As part of the flood risk reduction infrastructure in the area, SCS-Upper Washita Creek Site-060 serves as a vital component in the water resource management efforts of the state of Oklahoma. With state-regulated operations and enforcement by the OWRB, this dam exemplifies the collaborative efforts between government agencies and conservation organizations to safeguard communities and ecosystems from the impacts of extreme weather events and climate variability.

Year Completed

1963

Dam Length

1215

Dam Height

45

River Or Stream

TR-CROTON CREEK

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

41

Nid Storage

305

Structural Height

45

Outlet Gates

Valve - 1

Hazard Potential

Significant

Foundations

Soil

Nid Height

45
       
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.