Dam 41 Reservoir Report

Last Updated: December 5, 2025

Dam 41, also known as Cantonment B, is a Federal-owned earth dam situated in Killeen, Texas, within the Coryell River watershed.


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Summary

Managed by the US Army, this dam stands at a height of 23 feet and spans a length of 530 feet, providing a storage capacity of 58 acre-feet. With a spillway width of 40 feet and a significant hazard potential, Dam 41 plays a crucial role in flood control and water management in the region.

Despite its age and limited data availability on its condition assessment, Dam 41 remains a vital structure for the US Army, as it serves as a key component in their operations and regulatory framework. The dam has not undergone recent modifications or inspections, highlighting the need for continued monitoring and risk assessment to ensure its safety and effectiveness in mitigating potential hazards. With a moderate risk level assigned, efforts to update emergency action plans and conduct thorough risk assessments are essential to safeguard the surrounding communities and environment.

As climate change impacts water resources and increases the frequency of extreme weather events, Dam 41's role in flood control and water storage becomes increasingly significant. Understanding the dam's structural integrity, operational capabilities, and risk management measures are crucial for water resource and climate enthusiasts to advocate for sustainable practices and infrastructure investments that prioritize resilience and adaptability in the face of a changing climate.

Dam Length

530

Dam Height

23

River Or Stream

Coryell

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

23

Nid Storage

58

Structural Height

23

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

23
       
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.