El Colina Lake No 5 Dam Reservoir Report

Last Updated: December 5, 2025

El Colina Lake No 5 Dam, located in Bosque, Texas, was completed in 1969 and stands at 43 feet in height with a length of 1750 feet.


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Summary

This privately owned earth dam on Mesquite Creek serves primarily for recreational purposes and water supply, offering a storage capacity of 825 acre-feet. Despite its high hazard potential and risk assessment rating of "High (2)", the dam is not rated for its condition assessment and lacks a Emergency Action Plan (EAP) preparedness, which is concerning for the safety and management of the structure.

Managed by the Texas Commission on Environmental Quality (TCEQ), the El Colina Lake No 5 Dam has no spillway and is equipped with one outlet gate. While it is regulated and inspected by the state, there is limited data available on its condition and emergency preparedness. The dam's location along Mesquite Creek within the Fort Worth District of the US Army Corps of Engineers adds to its significance for water resource and climate enthusiasts, who may be interested in monitoring its risk management measures and future modifications.

As a notable feature in the water infrastructure of Texas, El Colina Lake No 5 Dam presents an intriguing case study for those interested in exploring the intersection of recreation, water supply, and dam safety. With its unique design, high hazard potential, and limited risk management measures in place, this earth dam serves as a focal point for discussions on the importance of proactive maintenance, emergency preparedness, and regulatory oversight in ensuring the resilience of our water resources in the face of changing climatic conditions.

Year Completed

1969

Dam Length

1750

Dam Height

43

River Or Stream

MESQUITE CREEK

Primary Dam Type

Earth

Surface Area

20

Hydraulic Height

43

Nid Storage

825

Structural Height

43

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

43
       
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.