Harvey Lake Dam Reservoir Report

Last Updated: December 5, 2025

Harvey Lake Dam, located in Cass County, Texas, is a privately owned earth dam with a primary purpose of recreation.


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Summary

Completed in 1969, the dam stands at a height of 9 feet and has a length of 500 feet. It has a storage capacity of 83 acre-feet, with a normal storage level of 34 acre-feet, and covers a surface area of 12 acres. Although the dam does not have a spillway, it is equipped with one outlet gate.

Despite being privately owned, Harvey Lake Dam is subject to state permitting and inspection requirements. It is not regulated by the state and has not been rated for condition assessment. The dam is considered to have a high risk potential, and measures for risk management have not been specified. Even though it is not under the jurisdiction of the state, the dam plays a crucial role in providing recreational opportunities for the local community and adds to the scenic beauty of the area surrounding TR-Colley Creek. Enthusiasts of water resources and climate will find Harvey Lake Dam an intriguing structure to explore and study.

Year Completed

1969

Dam Length

500

Dam Height

9

River Or Stream

TR-COLLEY CREEK

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

9

Nid Storage

83

Structural Height

9

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

9
       
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.