Coon Creek 29 Reservoir Report

Last Updated: December 5, 2025

Coon Creek 29, also known as Korn, is a vital structure in Monroe, Wisconsin, designed by the USDA NRCS with a primary purpose of debris control.


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Summary

This earth dam, completed in 1961, stands at a height of 34 feet and spans a length of 440 feet along Coon Creek. It serves to mitigate flood risks and contributes to the overall management of water resources in the area.

Managed by the Wisconsin Department of Natural Resources, Coon Creek 29 has a normal storage capacity of 10 acre-feet and a maximum discharge of 195 cubic feet per second. Despite being classified with a low hazard potential, the dam's condition was assessed as unsatisfactory in 2018. Regular inspections are conducted to ensure its structural integrity and functionality for the surrounding community.

With a moderate risk assessment rating, Coon Creek 29 remains a crucial component of the local water resource infrastructure. As climate change continues to impact the frequency and intensity of extreme weather events, structures like this play a key role in reducing flood risks and protecting the environment. The collaboration between local government agencies and the USDA NRCS underscores the importance of proactive management and maintenance of water resources in the face of a changing climate.

Year Completed

1961

Dam Length

440

Dam Height

34

River Or Stream

Coon Creek

Primary Dam Type

Earth

Surface Area

5

Hydraulic Height

14

Drainage Area

3

Nid Storage

207

Structural Height

34

Hazard Potential

Low

Nid Height

34
       
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.