Lake Lacima Dam Reservoir Report

Last Updated: December 5, 2025

Lake Lacima Dam, located in McKinney, Texas, was completed in 1975 with the primary purpose of providing recreational opportunities for the community.


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Summary

The dam, designed by Petsche & Associates, is classified as an earth dam with a height of 18 feet and a length of 400 feet. It sits on TR-Wilson Creek and has a maximum storage capacity of 230 acre-feet.

The dam has a spillway type of "Uncontrolled" with a width of 227 feet and three uncontrolled outlet gates. Despite being classified as having a fair condition assessment as of February 2018, it has a moderate risk rating. The dam is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes inspections every five years. Overall, Lake Lacima Dam serves as both a recreational resource and an essential part of the region's water management infrastructure.

Years Modified

2005 - Structural

Year Completed

1975

Dam Length

400

Dam Height

18

River Or Stream

TR-WILSON CREEK

Primary Dam Type

Earth

Surface Area

8.7

Hydraulic Height

18

Drainage Area

0.9

Nid Storage

230

Structural Height

21

Outlet Gates

Uncontrolled - 3

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.