Ballantrae At Piper Glen Reservoir Report

Last Updated: December 5, 2025

Ballantrae At Piper Glen, located in Charlotte, North Carolina, is a privately owned recreational dam on Fourmile Creek-Tr.


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Summary

With a hydraulic height of 11.4 feet and a structural height of 15.4 feet, this earth dam provides a surface area of 1.3 acres and a storage capacity of 8 acre-feet. Despite its modest size, the dam has been designated as having a high hazard potential, indicating the importance of proper maintenance and monitoring.

The dam is regulated by the North Carolina Department of Environmental Quality and the Dam Safety Program, ensuring that it meets state standards for inspection, enforcement, and permitting. The most recent inspection in February 2020 found the dam to be in fair condition, highlighting the need for ongoing assessment and potential risk management measures. With a history of meeting regulatory guidelines and a commitment to safety, Ballantrae At Piper Glen serves as a vital resource for both recreation and water management in the area.

As water resource and climate enthusiasts, it is essential to recognize the significance of structures like Ballantrae At Piper Glen in maintaining the balance of water ecosystems. By understanding the regulatory framework and condition assessments of dams like this, we can work towards sustainable water management practices that benefit both the environment and the surrounding communities. With proper monitoring and risk assessment, we can ensure that recreational facilities like Ballantrae At Piper Glen continue to provide enjoyment while also prioritizing safety and environmental stewardship.

Dam Length

100

River Or Stream

Fourmile Creek-Tr

Primary Dam Type

Earth

Surface Area

1.3

Hydraulic Height

11.4

Nid Storage

8

Structural Height

15.4

Hazard Potential

High

Nid Height

15
       
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.