Bangor Dam Reservoir Report

Last Updated: December 18, 2025

Bangor Dam, located in Bangor, Michigan, along the South Branch of the Black River, was completed in 1975 with a primary purpose of recreation.


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Summary

Owned and regulated by the local government, specifically the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), this earth dam stands at a height of 13 feet with a length of 180 feet. The dam has a low hazard potential and a very high risk assessment, indicating a need for careful management and monitoring.

With a maximum storage capacity of 97 acre-feet and a normal storage of 55 acre-feet, Bangor Dam covers a surface area of 37 acres and has a controlled spillway with a width of 40 feet. Although the dam has not been rated for condition assessment, it is regularly inspected and meets state regulatory standards. The risk management measures for the dam are not specified, but given its high risk assessment, it is crucial for officials to ensure the safety and integrity of the structure for both recreational and environmental purposes.

As a vital part of the local water resource infrastructure, Bangor Dam offers opportunities for recreational activities while also serving as a critical component for flood control and water management in the area. Its location in Van Buren County further highlights its importance in the region's water resource management efforts. Enthusiasts of water resources and climate will find Bangor Dam an intriguing subject for further study and monitoring as it continues to play a significant role in the local ecosystem.

Year Completed

1975

Dam Length

180

Dam Height

13

River Or Stream

S Br Black River

Primary Dam Type

Earth

Surface Area

37

Hydraulic Height

13

Nid Storage

97

Structural Height

13

Hazard Potential

Low

Nid Height

13
       
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.