Upper Brushy Creek Ws Scs Site 19 Dam Reservoir Report

Last Updated: December 5, 2025

Upper Brushy Creek WS SCS Site 19 Dam, located in Round Rock, Texas, is a crucial infrastructure owned by the local government and regulated by the Texas Commission on Environmental Quality.


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Summary

Built in 1960 by the USDA NRCS, this earth-type dam stands at a height of 41 feet and has a length of 1450 feet, providing flood risk reduction for the area along the TR-Brushy Creek. With a storage capacity of 970 acre-feet and a normal storage of 70 acre-feet, this dam serves multiple purposes, including fire protection, stock or small fish pond, and flood risk reduction.

The dam features an uncontrolled spillway with a width of 127 feet and outlet gates including a slide (sluice gate) and two uncontrolled gates. The structure has undergone modifications in 2008 to enhance its hydraulic capabilities. Despite being rated as not available in terms of hazard potential and not rated in condition assessment, the dam is inspected every five years and has an emergency action plan last revised in March 2018. With a moderate risk assessment score of 3, the dam ensures the safety of the surrounding community while managing water resources effectively in the region.

Overall, Upper Brushy Creek WS SCS Site 19 Dam plays a vital role in water management and flood control in Williamson County, Texas. Its strategic location, design, and operational features make it a key asset for the local government in mitigating flood risks and ensuring water security for the residents of Round Rock. As climate change continues to impact weather patterns, the significance of such infrastructure in sustainable water resource management cannot be overstated.

Years Modified

2008 - Hydraulic

Year Completed

1960

Dam Length

1450

Dam Height

41

River Or Stream

TR-BRUSHY CREEK

Primary Dam Type

Earth

Surface Area

18.4

Hydraulic Height

41

Drainage Area

1.64

Nid Storage

970

Structural Height

41

Outlet Gates

Slide (sluice gate) - 1, Uncontrolled - 2

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

41
       
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.