Carrier Creek Structure B Reservoir Report

Last Updated: December 5, 2025

Carrier Creek Structure B, located in Eaton County, Michigan, is a vital infrastructure designed to address flood risk reduction along Carrier Creek.


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Summary

Built in 2008, this private-owned earth dam stands at a height of 20 feet and spans 1650 feet in length. With a storage capacity of 116 acre-feet, the dam plays a crucial role in mitigating potential flooding events in the area.

Maintained and regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), Carrier Creek Structure B has a high hazard potential due to its location and design. Despite the high risk associated with the dam, its condition was assessed as satisfactory during the last inspection in October 2020. The structure is equipped with a controlled spillway and has a maximum discharge capacity of 1010 cubic feet per second, ensuring efficient water management during extreme weather events.

For water resource and climate enthusiasts, Carrier Creek Structure B serves as a prime example of effective flood risk reduction infrastructure in the state of Michigan. With its strategic location, design features, and regular inspections, the dam plays a critical role in protecting the surrounding area from potential flooding disasters. As climate change continues to impact water resources, structures like Carrier Creek Structure B are essential for safeguarding communities and ensuring sustainable water management practices in the region.

Year Completed

2008

Dam Length

1650

Dam Height

20

River Or Stream

Carrier Creek

Primary Dam Type

Earth

Hydraulic Height

17

Drainage Area

3.75

Nid Storage

116

Structural Height

20

Hazard Potential

High

Nid Height

20
       
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.