Stronach Dam Reservoir Report

Last Updated: December 5, 2025

Located in Manistee, Michigan, the Stronach Dam stands as a testament to engineering excellence, with a primary purpose of providing recreational opportunities to the local community.


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Summary

Completed in 1912, this gravity dam measures 20 feet in height and 330 feet in length, impounding the Pine River to create a surface area of 1 acre. With a storage capacity of 850 acre-feet, the dam plays a crucial role in managing water resources in the area, with a maximum discharge capacity of 3,800 cubic feet per second.

Despite its age, the Stronach Dam has been assessed to have a low hazard potential and is currently rated as "Not Rated" in terms of its condition. With a risk assessment indicating a very high risk level, measures for risk management are being considered to ensure the safety and integrity of the structure. As a privately-owned facility, the dam serves as a popular spot for recreational activities such as fishing, boating, and wildlife viewing, attracting visitors from near and far to appreciate the beauty of the surrounding landscape.

As water resource and climate enthusiasts continue to monitor the Stronach Dam and its impact on the local ecosystem, efforts are being made to ensure its continued operation in a safe and sustainable manner. With the potential for future modifications and improvements to enhance its resilience to changing environmental conditions, the dam remains a vital part of the community's infrastructure and a symbol of harmony between human development and natural resources.

Year Completed

1912

Dam Length

330

Dam Height

20

River Or Stream

Pine River

Primary Dam Type

Gravity

Surface Area

1

Hydraulic Height

20

Drainage Area

274

Nid Storage

850

Structural Height

20

Hazard Potential

Low

Nid Height

20
       
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.