Scs-Butler Laterals Site-004 Reservoir Report

Last Updated: December 6, 2025

SCS-Butler Laterals Site-004, located in Custer County, Oklahoma, is a state-regulated earth dam that serves the primary purpose of flood risk reduction along the TR-Washita River.


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Summary

Built in 1970 by the USDA NRCS, this dam stands at a height of 35 feet with a hydraulic height of 32 feet and a structural height of 35 feet. It has a length of 620 feet and a storage capacity of 160 acre-feet, making it an essential structure for managing water flow and reducing flood risks in the region.

The dam features a controlled spillway with a width of 1 foot and an outlet gate consisting of a single valve. Despite its age, the hazard potential for SCS-Butler Laterals Site-004 is rated as low, with a very high risk assessment indicating the critical importance of its maintenance and management. Although the dam's condition has not been officially rated, it is regularly inspected by the state regulatory agency and meets all state permitting, inspection, and enforcement requirements.

As a vital component of the flood risk reduction infrastructure in Custer County, SCS-Butler Laterals Site-004 plays a crucial role in protecting the surrounding area from potential inundation and ensuring the safety of nearby residents. With its strategic location along the TR-Washita River and its low hazard potential, this earth dam stands as a testament to effective water resource management and climate resilience efforts in Oklahoma.

Year Completed

1970

Dam Length

620

Dam Height

35

River Or Stream

TR-WASHITA RIVER

Primary Dam Type

Earth

Surface Area

8

Hydraulic Height

32

Nid Storage

160

Structural Height

35

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

35
       
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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.