Pflugerville Dam Reservoir Report

Last Updated: December 5, 2025

Located in Travis County, Texas, the Pflugerville Dam is a local government-owned structure designed by HDR and completed in 2005.


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Summary

With a primary purpose of water supply, the earth-type dam stands at a height of 37.5 feet and has a hydraulic height of 38.5 feet. Its maximum storage capacity is 3,273 acre-feet, with a normal storage level of 1,700 acre-feet and a surface area of 180 acres.

Sitting on the TR-Wilbarger Creek, the dam features an uncontrolled spillway with a width of 200 feet and outlet gates including three slide gates and one uncontrolled gate. The dam has been inspected regularly, with the latest assessment in July 2017 rating its condition as satisfactory. The risk assessment for the Pflugerville Dam indicates a moderate risk level of 3, with hazard potential information not available.

Water resource and climate enthusiasts will find the Pflugerville Dam an intriguing structure to study, with its unique design elements and purposeful contribution to water supply in the region. The dam's compliance with state regulations and inspection requirements, along with its risk management measures, make it a significant asset in the local water infrastructure. Its strategic location and features make it a valuable site for further research and monitoring in the realm of water resource management and climate resilience.

Year Completed

2005

Dam Length

2944

Dam Height

37.5

River Or Stream

TR-WILBARGER CREEK

Primary Dam Type

Earth

Surface Area

180

Hydraulic Height

38.5

Drainage Area

1.88

Nid Storage

3273

Structural Height

46.5

Outlet Gates

Slide (sluice gate) - 3, Uncontrolled - 1

Hazard Potential

Not Available

Foundations

Soil

Nid Height

47
       
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.