Upper Washita River Ws Scs Site 31 Dam Reservoir Report

Last Updated: December 6, 2025

The Upper Washita River WS SCS Site 31 Dam, located in Hemphill, Texas, was built in 1963 by the USDA NRCS for the primary purpose of recreation.


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Summary

This Earth-type dam stands at a height of 47 feet and has a length of 2500 feet, creating a reservoir with a maximum storage capacity of 6326 acre-feet. The dam is situated on the Hackberry Creek, within the Tulsa District of Texas, and is regulated by the Texas Commission on Environmental Quality (TCEQ).

With a drainage area of 35.78 square miles, the Upper Washita River WS SCS Site 31 Dam has a spillway width of 260 feet and can discharge up to 9364 cubic feet per second. Despite being last inspected in 1977 and currently listed as having a moderate risk level, the dam's hazard potential and condition assessment are not available. The dam does not have an Emergency Action Plan (EAP) prepared, raising concerns about emergency response readiness in the event of a dam failure or significant flood event.

Water resource and climate enthusiasts will find the data on the Upper Washita River WS SCS Site 31 Dam informative for understanding the infrastructure and risk factors associated with this recreational dam in Texas. Further assessment and updates on the dam's condition, emergency preparedness, and risk management measures are needed to ensure the safety and resilience of the surrounding community and water resources.

Year Completed

1963

Dam Length

2500

Dam Height

47

River Or Stream

HACKBERRY CREEK

Primary Dam Type

Earth

Surface Area

40

Hydraulic Height

47

Drainage Area

35.78

Nid Storage

6326

Structural Height

47

Outlet Gates

Uncontrolled - 3

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

47
       
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.