Winnebago Twp 35b Reservoir Report

Last Updated: December 5, 2025

Winnebago Twp 35b, also known as Staggemeyer, is a privately-owned dam situated in Houston County, Minnesota, along the Winnebago Creek-TR.


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Summary

Completed in 2012, this earth dam stands at a height of 22.5 feet and spans a length of 405 feet, with a storage capacity of 48.3 acre-feet. The primary purpose of this structure is flood risk reduction, serving to protect the surrounding area from potential inundation.

Managed by the Minnesota Department of Natural Resources, Winnebago Twp 35b has been deemed to have a low hazard potential and is currently assessed to be in satisfactory condition. Regular inspections are conducted every 8 years to ensure the dam's continued functionality and safety. Though the risk assessment for this dam is moderate, appropriate risk management measures are in place to mitigate any potential dangers.

Located in the vicinity of the Mississippi River, Winnebago Twp 35b plays a crucial role in safeguarding the local community from flooding events. With its modern design and regulatory framework in place, this dam stands as a testament to effective water resource management and climate resilience efforts in the region.

Year Completed

2012

Dam Length

405

Dam Height

22.5

River Or Stream

WINNEBAGO CREEK-TR

Primary Dam Type

Earth

Drainage Area

2.2

Nid Storage

48.3

Structural Height

25.5

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

26
       
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.