Scs-Upper Washita Creek Site-057 Reservoir Report

Last Updated: December 11, 2025

SCS-Upper Washita Creek Site-057, located in Roger Mills County, Oklahoma, is a state-regulated dam designed by the USDA NRCS for flood risk reduction along Croton Creek.


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Summary

Completed in 1972, this earth dam stands 59 feet tall with a hydraulic height of 54 feet and a length of 1427 feet. With a storage capacity of 4003 acre-feet and a normal storage level of 1082 acre-feet, it serves as a crucial infrastructure for managing water resources in the region.

Despite being classified as having a high hazard potential, the dam is in fair condition and is equipped with a controlled spillway and a single valve outlet gate for water discharge. The risk assessment for SCS-Upper Washita Creek Site-057 indicates a very high risk level, emphasizing the need for regular inspections and potential risk management measures. As part of the state's regulatory framework, the Oklahoma Water Resources Board oversees the permitting, inspection, and enforcement of this dam to ensure public safety and environmental protection in the event of emergencies.

In the event of an emergency, it is crucial for the dam operators to have an Emergency Action Plan (EAP) in place to guide response efforts and protect downstream communities. While specific details regarding the EAP status and adherence to guidelines are not provided, the presence of state jurisdiction, permitting, inspection, and enforcement mechanisms underscores the importance of proactive risk management for this critical water resource infrastructure in Oklahoma.

Year Completed

1972

Dam Length

1427

Dam Height

59

River Or Stream

CROTON CREEK

Primary Dam Type

Earth

Surface Area

99

Hydraulic Height

54

Nid Storage

4003

Structural Height

59

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Soil

Nid Height

59
       
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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.