Parmer Dam Reservoir Report

Last Updated: December 5, 2025

Parmer Dam, located in Travis County, Texas, was completed in 2006 and serves as a vital water resource management infrastructure in the region.


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Summary

The dam, standing at a height of 21 feet and spanning 800 feet in length, has a storage capacity of 230 acre-feet and is primarily used for purposes other than flood control or irrigation. The structure is made of concrete and features a multi-arch core type, with an uncontrolled spillway width of 23 feet.

Managed by the local government and regulated by the Texas Commission on Environmental Quality (TCEQ), Parmer Dam has been assessed to be in fair condition as of June 2014, with a moderate risk level. The dam is equipped with one uncontrolled outlet gate and is inspected every five years to ensure its safety and functionality. While the hazard potential of the dam is not available, its risk management measures and emergency action plan are crucial components of its operation in the event of unforeseen circumstances. Overall, Parmer Dam plays a significant role in the water resource management of the Wells Branch stream, contributing to the sustainable development and climate resilience of the surrounding area.

Year Completed

2006

Dam Length

800

Dam Height

21

River Or Stream

WELLS BRANCH

Primary Dam Type

Concrete

Drainage Area

3.77

Nid Storage

230

Structural Height

21

Outlet Gates

Uncontrolled - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

21
       
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.