Centennial Lake Dam Reservoir Report

Last Updated: December 5, 2025

Centennial Lake Dam, located in Almont, Michigan, is a privately owned structure that serves as a recreational site along the North Branch Clinton River.


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Summary

The dam, primarily used for recreation purposes, is an earth-type structure with a height of 7 feet and a storage capacity of 90 acre-feet. With a low hazard potential and satisfactory condition assessment as of November 2011, the dam is regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE) and undergoes regular state inspections and enforcement.

While Centennial Lake Dam does not have a significant impact on its surrounding area in terms of drainage or discharge, its controlled spillway and uncontrolled spillway type ensure the safety of the structure during periods of high water levels. The dam's risk assessment categorizes it as moderate, with moderate risk management measures in place. Despite its minimal impact, the dam provides a valuable recreational space for the community, offering a surface area of 30 acres for activities such as boating and fishing. With regular inspections and a history of satisfactory performance, Centennial Lake Dam continues to provide both recreational opportunities and peace of mind for water resource and climate enthusiasts in the region.

Dam Height

7

River Or Stream

North Branch Clinton River

Primary Dam Type

Earth

Surface Area

30

Hydraulic Height

7

Nid Storage

90

Structural Height

7

Hazard Potential

Low

Nid Height

7
       
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.