Northwest Park Dam Reservoir Report

Last Updated: December 5, 2025

Northwest Park Dam in Travis County, Texas, stands as a crucial local government-owned structure that has been regulating water resources in the area since its completion in 1984.


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Summary

The dam, primarily serving purposes beyond flood control, is an earth-type structure with a height of 20 feet and a length of 2000 feet, contributing to a drainage area of 4.3 square miles. Despite its significant storage capacity of 225 acre-feet, the dam is noted for its poor condition assessment as of April 2021.

With a spillway width of 300 feet and an uncontrolled spillway type, Northwest Park Dam has been classified with a moderate risk assessment level. The dam's inspection frequency is set at 5 years, with the last inspection dated in March 2012. The dam's hazardous potential is not available, but its emergency action plan has not been updated recently, raising concerns about its preparedness for unforeseen events. Despite its critical role in water resource management, the dam's condition and risk level warrant attention to ensure its continued functionality and safety for the surrounding community.

Year Completed

1984

Dam Length

2000

Dam Height

20

River Or Stream

Primary Dam Type

Earth

Surface Area

22

Hydraulic Height

22

Drainage Area

4.3

Nid Storage

225

Structural Height

22

Outlet Gates

Uncontrolled - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

22
       
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.