Ne Trib Leon River Ws Scs Site 21 Dam Reservoir Report

Last Updated: December 6, 2025

Ne Trib Leon River WS SCS Site 21 Dam, located in Comanche, Texas, is a key structure owned by the local government and regulated by the Texas Commission on Environmental Quality.


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Summary

Built in 1965 by the USDA NRCS, this earth dam stands at 45 feet high and spans 2000 feet along the Salt Branch river. With a normal storage capacity of 124 acre-feet and a drainage area of 4.94 square miles, the dam serves primarily for flood risk reduction but also offers recreational opportunities.

Despite its age, the Ne Trib Leon River WS SCS Site 21 Dam has a high risk assessment due to its hazard potential not being available and its condition not being rated. However, the dam has not been modified over the years and lacks a spillway, which could pose potential risks in the event of heavy rainfall. With only one outlet gate and no locks, the dam's emergency action plan status, inundation maps, and risk management measures are not available, raising concerns for its long-term safety and effectiveness in managing flood risks in the area.

For water resource and climate enthusiasts, the Ne Trib Leon River WS SCS Site 21 Dam presents an intriguing case study of a local government-owned structure designed for flood risk reduction on the Salt Branch river. With its historical significance dating back to 1965 and its current high risk assessment, the dam serves as a focal point for discussions on infrastructure resilience, emergency preparedness, and risk management in the face of changing climate patterns and increasing extreme weather events. As the dam continues to play a critical role in protecting the surrounding community from floods, further evaluation and improvement of its safety and operational protocols may be necessary to ensure its long-term sustainability and effectiveness in the region.

Year Completed

1965

Dam Length

2000

Dam Height

45

River Or Stream

SALT BRANCH

Primary Dam Type

Earth

Surface Area

28

Hydraulic Height

45

Drainage Area

4.94

Nid Storage

2355

Structural Height

45

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

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.