Perrysville Dam Reservoir Report

Last Updated: December 5, 2025

Located in Flint, Michigan, the Perrysville Dam, also known as Stillers Dam, was completed in 1890 and serves as a recreational spot along Thread Creek.


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Summary

Owned privately, the dam stands 13 feet tall and has a storage capacity of 110 acre-feet. With a controlled spillway and a low hazard potential, the dam is regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), ensuring regular inspections and enforcement of safety measures.

Despite its age, the Perrysville Dam has not been rated for its current condition, but its risk assessment is categorized as very high, with a risk level of 1. Although the dam has not been modified in recent years and lacks an Emergency Action Plan (EAP), it remains a popular recreational destination for water and climate enthusiasts. With a surface area of 10 acres and a drainage area of 11.3 square miles, the dam provides an important water resource for the local community.

The dam's unique history, combined with its picturesque location and the regulatory oversight from the state, make the Perrysville Dam a fascinating site for those interested in water resources and climate. As efforts continue to assess and manage the dam's risk profile, it remains a valuable asset for both recreational activities and environmental conservation in Oakland County, Michigan.

Year Completed

1890

Dam Length

6

Dam Height

13

River Or Stream

Thread Creek

Primary Dam Type

Earth

Surface Area

10

Hydraulic Height

13

Drainage Area

11.3

Nid Storage

110

Structural Height

13

Hazard Potential

Low

Nid Height

13
       
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.