Broucek Dam Reservoir Report

Last Updated: December 5, 2025

Broucek Dam, located in Manchester, Michigan, is a privately owned structure with a primary purpose of recreation.


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Summary

This earth dam stands at a height of 11.7 feet with a hydraulic height of 14.7 feet, creating a reservoir with a normal storage capacity of 33 acre-feet. The dam, situated on a tributary to River Raisin, offers a surface area of 25 acres for water enthusiasts to enjoy various recreational activities.

Managed by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), Broucek Dam has a low hazard potential and is currently assessed to be in fair condition. The dam has a moderate risk assessment rating, indicating the need for ongoing monitoring and risk management measures to ensure its continued safety and functionality. With a last inspection date in September 2016, the dam undergoes regular evaluations to maintain its integrity and safeguard against any potential hazards.

Despite not being under the jurisdiction of the U.S. Army Corps of Engineers, Broucek Dam plays a crucial role in providing recreational opportunities and water resource management in Washtenaw County. With its picturesque location and importance in the local ecosystem, the dam serves as a valuable asset for both residents and visitors alike who appreciate the beauty and benefits of this essential water infrastructure.

Dam Length

900

Dam Height

11.7

River Or Stream

Tributary to River Raisin

Primary Dam Type

Earth

Surface Area

25

Hydraulic Height

14.7

Drainage Area

3.6

Nid Storage

83

Structural Height

11.7

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.