Lower Brushy Creek Ws Scs Site 23 Dam Reservoir Report

Last Updated: December 5, 2025

Lower Brushy Creek WS SCS Site 23 Dam, located in Williamson County, Texas, is a vital structure designed by USDA NRCS for flood risk reduction along the Long Branch river.


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Summary

Completed in 1961, this earth dam stands at a height of 30 feet and spans 1400 feet, with a storage capacity of 1025 acre-feet. While primarily serving flood risk reduction purposes, it also supports fire protection, irrigation, and stock or small fish pond needs in the area.

Managed by the local government and regulated by TCEQ, the dam is in fair condition as of the latest assessment in April 2021. With a high hazard potential, it is crucial for the community to have emergency action plans in place. Although there is no spillway, the dam features one outlet gate for controlled water release. The risk assessment for this dam is rated as high (2), emphasizing the importance of ongoing monitoring and maintenance to ensure public safety and water resource protection in the region.

Overall, Lower Brushy Creek WS SCS Site 23 Dam plays a significant role in managing water resources and mitigating flood risks in Williamson County, Texas. With its strategic location and design, this earth dam continues to support the local ecosystem while safeguarding against potential hazards. As climate change impacts water availability and extreme weather events, the maintenance and upkeep of such critical infrastructure become even more crucial for sustainable water management in the region.

Year Completed

1961

Dam Length

1400

Dam Height

30

River Or Stream

LONG BRANCH

Primary Dam Type

Earth

Hydraulic Height

30

Nid Storage

1025

Structural Height

30

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

30
       
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.