Tehuacana Creek Ws Scs Site 11 Dam Reservoir Report

Last Updated: December 5, 2025

Tehuacana Creek WS SCS Site 11 Dam, located in McLennan County, Texas, is a vital structure designed by the USDA NRCS to primarily reduce flood risks in the area.


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Summary

Completed in 1963, this earth dam stands at a height of 39 feet and spans a length of 1570 feet, creating a storage capacity of 2742 acre-feet. Despite its age, the dam remains state-regulated and undergoes regular inspections by the TCEQ to ensure its structural integrity and functionality.

With a drainage area of 4.27 square miles, the dam serves multiple purposes including fire protection, stock or small fish pond, and flood risk reduction. The surrounding surface area measures 41 acres, contributing to the overall water resource management in the region. While the dam lacks a spillway, it is equipped with a single outlet gate for controlled water release. With a high risk assessment rating, the dam necessitates proper risk management measures to safeguard against any potential hazards and ensure the safety of the surrounding community and environment.

Year Completed

1963

Dam Length

1570

Dam Height

39

River Or Stream

COTTONWOOD CREEK

Primary Dam Type

Earth

Surface Area

41

Hydraulic Height

39

Drainage Area

4.27

Nid Storage

2742

Structural Height

39

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

39
       
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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.