Upper Brushy Creek Ws Scs Site 10a Dam Reservoir Report

Last Updated: December 5, 2025

The Upper Brushy Creek WS SCS Site 10a Dam in Williamson, Texas, is a vital structure designed by the USDA NRCS for flood risk reduction along Chandler Branch.


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Summary

Completed in 1965, this earth dam stands at a height of 42 feet and spans 1800 feet, with a maximum storage capacity of 1872 acre-feet. Despite its fair condition assessment in 2018, the dam is regulated and inspected by the Texas Commission on Environmental Quality (TCEQ) to ensure its integrity and safety.

This dam serves multiple purposes, including fire protection, stock maintenance, and flood risk reduction, highlighting its importance for both environmental and community resilience. With a drainage area of 4.23 square miles and a spillway width of 202 feet, the dam is equipped to handle a maximum discharge of 8958 cubic feet per second. The structure's fair condition and moderate risk assessment underscore the need for ongoing maintenance and risk management to safeguard the surrounding area from potential hazards.

As a significant asset in water resource management, the Upper Brushy Creek WS SCS Site 10a Dam plays a crucial role in protecting the local community and environment from flooding events. With its strategic location and design features, this dam stands as a key infrastructure for mitigating flood risks in Williamson County, Texas. Ongoing inspections, regulatory oversight, and risk management measures are essential to ensuring the continued effectiveness and safety of this important structure.

Year Completed

1965

Dam Length

1800

Dam Height

42

River Or Stream

CHANDLER BRANCH

Primary Dam Type

Earth

Surface Area

17

Hydraulic Height

42

Drainage Area

4.23

Nid Storage

1872

Structural Height

42

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

42
       
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.