Blomgren's Marsh Dam Reservoir Report

Last Updated: December 5, 2025

Located in Dickinson, Michigan, Blomgren's Marsh Dam is a vital water resource structure that plays a crucial role in managing the South Branch Breen Creek.


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Summary

Built in 1967, this earth dam stands at a height of 10 feet, with a hydraulic height of 9 feet and a length of 166 feet. With a primary purpose classified as "Other," this dam has a storage capacity of 405 acre-feet and covers a surface area of 75 acres, serving the local community by providing essential water management services.

Maintained by the state of Michigan, Blomgren's Marsh Dam is regulated, permitted, inspected, and enforced by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE). Despite its low hazard potential, the dam is assessed to be in satisfactory condition as of the last inspection in June 2019. With a moderate risk rating, the dam's risk management measures and emergency action plans are yet to be fully determined, highlighting the importance of continued monitoring and preparedness in the face of changing climate patterns.

Blomgren's Marsh Dam stands as a testament to the intricate balance between water resource management and climate resilience. As a key structure in the region, it serves as a reminder of the importance of sustainable infrastructure development and proactive risk assessment in safeguarding communities against potential hazards. With its strategic location and design features, this dam represents a critical component in the broader network of water resource initiatives in Michigan, ensuring the continued well-being of both the environment and local residents.

Year Completed

1967

Dam Length

166

Dam Height

10

River Or Stream

South Branch Breen Creek

Primary Dam Type

Earth

Surface Area

75

Hydraulic Height

9

Drainage Area

2.3

Nid Storage

405

Structural Height

10

Hazard Potential

Low

Nid Height

10
       
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.