Au Train South Levee Reservoir Report

Last Updated: December 5, 2025

The Au Train South Levee, located in Alger County, Michigan, plays a crucial role in the management of the Au Train River for hydroelectric purposes.


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Summary

Completed in 1910, this earth dam stands at a height of 15 feet and spans a length of 4500 feet, with a storage capacity of 12,319 acre-feet. The dam serves multiple purposes, including hydroelectric power generation and recreation, making it a vital infrastructure for the local community.

Maintained by the Federal Energy Regulatory Commission, the Au Train South Levee has a high hazard potential and a moderate risk assessment rating. While the condition assessment is not available, the dam is inspected every three years to ensure its structural integrity and safety. In case of emergencies, an Emergency Action Plan (EAP) may be in place, though details on its preparation and guidelines adherence are not specified.

With its historical significance dating back over a century, the Au Train South Levee stands as a testament to sustainable water resource management and climate resilience in the region. As a key component of the local infrastructure, this dam continues to play a vital role in balancing the needs of energy production, recreation, and environmental protection along the Au Train River.

Year Completed

1910

Dam Length

4500

Dam Height

15

River Or Stream

Au Train River

Surface Area

1515

Drainage Area

80

Nid Storage

12319

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.