Mckinney Lake Dam Reservoir Report

Last Updated: December 5, 2025

Mckinney Lake Dam, located in Nacogdoches, Texas, was completed in 1960 and stands at a height of 18 feet.


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Summary

The dam serves primarily for recreational purposes, with a storage capacity of 130 acre-feet and a surface area of 18 acres. It is classified as an Earth dam with a Buttress core type and is situated on the Tiger Branch river.

Despite being privately owned, Mckinney Lake Dam falls under state jurisdiction and is subject to state permitting and inspection requirements. While it does not have a spillway, the dam is equipped with one outlet gate. The risk assessment for the dam indicates a high hazard potential, emphasizing the need for proactive risk management measures to ensure the safety of the surrounding area.

Water resource and climate enthusiasts may find Mckinney Lake Dam an interesting site to study, given its unique design and location. The dam's presence on the Tiger Branch river offers a glimpse into the intersection of water management and recreational activities in Texas. With its high hazard potential, further research and monitoring efforts could provide valuable insights into sustainable dam operations and risk mitigation strategies in the region.

Year Completed

1960

Dam Height

18

River Or Stream

TIGER BRANCH

Primary Dam Type

Earth

Surface Area

18

Hydraulic Height

18

Nid Storage

130

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.