Lago Del Bosque Lower Lake Dam Reservoir Report

Last Updated: December 5, 2025

Lago Del Bosque Lower Lake Dam, located in Montgomery, Texas, is a privately-owned earth dam that was completed in 1947 with a primary purpose of recreation.


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Summary

Standing at a height of 19 feet and a length of 867 feet, the dam has a storage capacity of 138 acre-feet and covers a surface area of 15 acres. Despite not having a spillway, the dam is regulated and inspected by the Texas Commission on Environmental Quality (TCEQ) to ensure its safety and compliance with state regulations.

The dam, situated on TR-Lake Creek, poses a high risk due to its hazard potential and condition assessment being rated as "Not Rated". While it lacks certain emergency preparedness measures such as an Emergency Action Plan (EAP) and inundation maps, it is important for water resource and climate enthusiasts to monitor and advocate for the implementation of risk management measures to mitigate potential hazards associated with the dam. With the dam's close proximity to residential areas, it is crucial to ensure that proper monitoring and maintenance practices are in place to protect the surrounding communities and the environment.

As part of the Fort Worth District, the Lago Del Bosque Lower Lake Dam serves as a recreational spot for locals and visitors alike. With its scenic surroundings and recreational opportunities, it is important to balance the enjoyment of the dam with a commitment to its safety and preservation for future generations. By staying informed and actively engaging in discussions about the dam's risk management and maintenance practices, water resource and climate enthusiasts can help ensure the continued safety and sustainability of this important infrastructure.

Year Completed

1947

Dam Length

867

Dam Height

19

River Or Stream

TR-LAKE CREEK

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

19

Nid Storage

138

Structural Height

19

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

19
       
Seasonal Comparison

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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.