Winkler Pond Dam Reservoir Report

Last Updated: December 5, 2025

Winkler Pond Dam, located in Rochester, Michigan, is a privately owned structure on Stony Creek with a primary purpose of recreation.


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Summary

Constructed in 1917, this earth and gravity dam stands at a height of 13 feet and spans 320 feet in length. It has a storage capacity of 200 acre-feet, with a normal storage level of 140 acre-feet and a surface area of 18 acres.

Despite its age, Winkler Pond Dam is in satisfactory condition and is regularly inspected by Michigan DEGLE. The dam has a controlled spillway with a width of 54 feet, ensuring safe water release during high flow events. With a significant hazard potential, the dam is closely monitored for any signs of deterioration to prevent potential risks to downstream areas.

The dam's risk assessment indicates a very high level of risk, with emergency action plans and risk management measures in place. The surrounding community benefits from the recreational opportunities provided by Winkler Pond Dam, while also relying on its proper maintenance and management to safeguard against any potential threats to water resources and climate resilience in the area.

Year Completed

1917

Dam Length

320

Dam Height

13

River Or Stream

Stony Creek

Primary Dam Type

Earth

Surface Area

18

Hydraulic Height

13

Drainage Area

68.5

Nid Storage

200

Structural Height

13

Hazard Potential

Significant

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.