Cannon Creek Dam Reservoir Report

Last Updated: December 5, 2025

Nestled in the picturesque city of Smyrna, Michigan, the Cannon Creek Dam stands as a testament to the enduring beauty and functionality of water resource infrastructure.


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Summary

Built in 1930, this private-owned earth dam serves primarily for recreational purposes, offering a tranquil oasis for visitors to enjoy the serene waters of Cannon Creek. With a structural height of 15 feet and a length of 245 feet, the dam provides a storage capacity of 70 acre-feet, ensuring a steady water supply for the surrounding area.

Despite its low hazard potential, the Cannon Creek Dam boasts a very high risk assessment rating, emphasizing the importance of regular inspections and maintenance to ensure its continued safety and efficiency. With a controlled spillway type and a maximum discharge capacity of 1500 cubic feet per second, the dam is equipped to handle potential overflow events effectively. However, with no official condition assessment rating, there is a need for further evaluation to address any potential risks and implement necessary risk management measures.

As a beloved landmark in Ionia, Michigan, the Cannon Creek Dam serves as a vital resource for both the local community and visitors seeking a peaceful retreat in nature. Its historical significance, combined with its recreational appeal, makes it a valuable asset worth preserving and protecting for future generations to enjoy.

Year Completed

1930

Dam Length

245

Dam Height

15

River Or Stream

Cannon Creek

Primary Dam Type

Earth

Surface Area

3

Nid Storage

70

Structural Height

15

Hazard Potential

Low

Nid Height

15
       
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.