Harpersville Lake Dam No.2 Reservoir Report

Last Updated: December 6, 2025

Harpersville Lake Dam No.2, located in Shelby, Alabama, is a privately owned earth dam constructed in 1965 for recreational purposes on the TR.MOORE BRANCH river.


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Summary

With a hydraulic height of 15 feet and a structural height of 18 feet, this dam offers a maximum storage capacity of 54 acre-feet and a normal storage of 50 acre-feet. The dam spans 300 feet in length and has a low hazard potential, making it a safe and reliable structure for water resource and climate enthusiasts to explore.

Managed by the Mobile District of the US Army Corps of Engineers, Harpersville Lake Dam No.2 has not been rated for its condition assessment, though it is currently considered to be in good standing. The dam does not have a designated Emergency Action Plan (EAP) in place, but it meets guidelines for risk management and has not experienced any significant modifications since its initial construction. With a minimal risk of failure and a history of recreational use, this dam serves as a valuable asset for both local residents and visitors seeking outdoor activities in the Klein area.

Despite its private ownership and lack of state regulation, Harpersville Lake Dam No.2 remains a key feature in the recreational landscape of Alabama. With its scenic location and reliable construction, this dam provides a safe and enjoyable environment for water enthusiasts and climate lovers to explore and appreciate the natural beauty of the TR.MOORE BRANCH river.

Year Completed

1965

Dam Length

300

River Or Stream

TR.MOORE BRANCH

Primary Dam Type

Earth

Hydraulic Height

15

Nid Storage

54

Structural Height

18

Hazard Potential

Low

Nid Height

18
       
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.