Upper Washita River Ws Scs Site 4 Dam Reservoir Report

Last Updated: December 6, 2025

The Upper Washita River WS SCS Site 4 Dam in Hemphill, Texas, is a crucial structure managed by the local government for flood risk reduction.


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Summary

Built in 1962 by the USDA NRCS, this earth dam stands at a height of 40 feet and stretches for 1275 feet along the TR-Washita River. With a storage capacity of 2531 acre-feet, it plays a pivotal role in managing water flow and protecting the surrounding area from potential flooding events.

Despite its importance, the dam lacks a spillway and has not been inspected since May 2010. Its hazard potential is marked as "Not Available," signaling a potential need for further assessment and maintenance. The risk assessment for the dam is classified as high (2), highlighting the importance of regular inspections and risk management measures to ensure its continued effectiveness in flood risk reduction. For water resource and climate enthusiasts, the Upper Washita River WS SCS Site 4 Dam serves as a critical infrastructure that warrants attention and proactive care to safeguard the community and environment it serves from potential hazards.

Year Completed

1962

Dam Length

1275

Dam Height

40

River Or Stream

TR-WASHITA RIVER

Primary Dam Type

Earth

Surface Area

38

Hydraulic Height

40

Drainage Area

11.11

Nid Storage

2531

Structural Height

40

Outlet Gates

Slide (sluice gate) - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

40
       
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.