Eagle Lake Dam Reservoir Report

Last Updated: December 5, 2025

Eagle Lake Dam, located in Augusta, Michigan, serves as a crucial water resource for the area, primarily designed for recreation purposes.


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Summary

Built in 1982, this earth dam stands at a height of 18.8 feet and has a hydraulic height of 17.5 feet, with a maximum storage capacity of 1940 acre-feet. The dam spans a length of 600 feet and covers a surface area of 189 acres, with a drainage area of 6.3 square miles.

Managed by the state of Michigan, Eagle Lake Dam is regulated, permitted, inspected, and enforced by the Michigan Department of Environmental Great Lakes and Energy. The dam's hazard potential is classified as low, with a satisfactory condition assessment as of October 2019. Despite its moderate risk rating, the dam meets regulatory guidelines and is equipped with an uncontrolled spillway with a width of 20 feet to manage maximum discharge levels of 215 cubic feet per second.

For water resource and climate enthusiasts, Eagle Lake Dam offers a fascinating case study in dam infrastructure management and water conservation. Its location as a tributary to the Kalamazoo River underscores its importance in the local ecosystem, while its recreational purpose highlights the balance between human enjoyment and environmental stewardship. With regular inspections, moderate risk assessments, and emergency preparedness measures in place, Eagle Lake Dam stands as a testament to responsible dam operation in Michigan's water resource management efforts.

Year Completed

1982

Dam Length

600

Dam Height

18.8

River Or Stream

Tributary to Kalamazoo River

Primary Dam Type

Earth

Surface Area

189

Hydraulic Height

17.5

Drainage Area

6.3

Nid Storage

1940

Structural Height

18.8

Hazard Potential

Low

Nid Height

19
       
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.