Lower Brushy Creek Ws Scs Site 4a Dam Reservoir Report

Last Updated: December 5, 2025

Lower Brushy Creek WS SCS Site 4a Dam, located in Williamson County, Texas, stands as a vital structure designed by the USDA NRCS for flood risk reduction along the TR-Turkey Creek.


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Summary

Completed in 1961, this earth dam with a height of 35 feet and a length of 2950 feet serves multiple purposes, including fire protection, stock or small fish pond, and flood risk reduction. With a storage capacity of 197 acre-feet, the dam plays a crucial role in safeguarding the surrounding area from potential flooding events.

Despite being classified as having a fair condition assessment as of April 2021, the dam has undergone structural modifications in 2010 to ensure its continued effectiveness. Equipped with a spillway width of 212 feet and outlet gates for controlled water release, Lower Brushy Creek WS SCS Site 4a Dam is subject to state regulation and inspection by TCEQ. While the dam's hazard potential is not available, its risk assessment indicates a moderate level of risk, prompting the need for ongoing risk management measures to maintain its integrity and functionality for the community it serves.

Overall, Lower Brushy Creek WS SCS Site 4a Dam stands as a crucial component in the region's water resource management and climate resilience efforts. As a local government-owned structure, it highlights the collaborative efforts between state and federal agencies to mitigate flood risks and ensure the safety of nearby residents. With a rich history of service dating back to the 1960s, this dam continues to play a significant role in protecting the area from potential inundation events, exemplifying the importance of proactive infrastructure planning and maintenance in the face of changing environmental conditions.

Years Modified

2010 - Structural

Year Completed

1961

Dam Length

2950

Dam Height

35

River Or Stream

TR-TURKEY CREEK

Primary Dam Type

Earth

Hydraulic Height

35

Nid Storage

1858

Structural Height

35

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

35
       
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.