Old City Lake Dam Reservoir Report

Last Updated: December 6, 2025

Old City Lake Dam, located in Lamar, Texas, was completed in 1964 and serves as a vital recreational resource in the area.


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Summary

The dam, with a height of 18 feet and a length of 500 feet, is primarily used for recreational purposes and has a storage capacity of 80 acre-feet. Situated on TR-Brushy Creek, the dam is of Earth type with a buttress core design.

Operated by the local government, the dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections and enforcement to ensure safety and compliance. With no spillway and a hazard potential deemed as "Not Available," the dam has a risk assessment rating of High (2). Although the condition assessment is not rated, the dam continues to provide valuable recreation opportunities for the community.

With its picturesque location and important role in water resource management, Old City Lake Dam is a significant structure in the region. As water resource and climate enthusiasts, it is important to understand the impact and significance of such dams in providing recreational opportunities while also ensuring safety and regulatory compliance.

Year Completed

1964

Dam Length

500

Dam Height

18

River Or Stream

TR-BRUSHY CREEK

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

18

Nid Storage

80

Structural Height

18

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

18
       
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.