Redridge Dam Reservoir Report

Last Updated: December 5, 2025

Redridge Dam, located in Redridge, Michigan, is a significant structure built in 1902 for the primary purpose of recreation.


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Summary

The dam, constructed with a Timber Crib design, stands at a height of 50 feet and stretches 228 feet in length, holding a storage capacity of 1480 acre-feet. Situated on the Salmon Trout River, the dam serves as a popular spot for outdoor enthusiasts to engage in various recreational activities.

Managed by the local government, Redridge Dam falls under the jurisdiction of the Michigan Department of Environment, Great Lakes, and Energy (DEGLE) for regulation, permitting, inspection, and enforcement. The dam has been assessed to be in fair condition as of the last inspection in May 2014, with a significant hazard potential and a moderate risk level. Despite its age, the dam continues to provide essential functions in terms of water storage and recreational opportunities for the community.

With a spillway width of 28 feet and an uncontrolled spillway type, Redridge Dam remains a vital structure within the Detroit District of Michigan. While the dam has not undergone significant modifications over the years, it continues to be a focal point for water resource and climate enthusiasts, offering a glimpse into the engineering marvels of the past and the importance of sustainable water management practices for the future.

Year Completed

1902

Dam Length

228

Dam Height

50

River Or Stream

Salmon Trout River

Primary Dam Type

Timber Crib

Surface Area

74

Hydraulic Height

50

Drainage Area

35

Nid Storage

1480

Structural Height

50

Hazard Potential

Significant

Nid Height

50
       
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.