Cusick No.2 Reservoir Report

Last Updated: December 5, 2025

Cusick No.2 is a privately owned earth dam located in Juneau, Wisconsin, along the Tiedtke Valley Creek.


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Summary

Built in 1972 by the USDA NRCS, this dam serves multiple purposes including fire protection, stock, and small fish pond maintenance. With a height of 29.3 feet and a hydraulic height of 24 feet, the dam has a storage capacity of 50 acre-feet and a surface area of 3.6 acres, making it an important water resource in the area.

Despite its age, Cusick No.2 is in fair condition according to a 2013 assessment, with a low hazard potential but a very high risk assessment rating. The dam has a controlled spillway with a width of 16 feet, and a maximum discharge capacity of 77 cubic feet per second. It is regulated by the Wisconsin Department of Natural Resources, with inspections and enforcement carried out regularly to ensure its structural integrity and safety. The dam's location in a high-risk zone underscores the importance of effective risk management measures to prevent potential hazards.

As a key component of the water infrastructure in Juneau County, Cusick No.2 plays a crucial role in water management and conservation efforts. Its presence along the Tiedtke Valley Creek not only provides essential services for fire protection and livestock, but also contributes to the local ecosystem by maintaining a habitat for small fish. With its strategic location and design, this dam continues to be a vital resource for both human and environmental needs in the region.

Year Completed

1972

Dam Length

255

Dam Height

29.3

River Or Stream

TIEDTKE VALLEY CREEK

Primary Dam Type

Earth

Surface Area

3.6

Hydraulic Height

24

Drainage Area

0.3

Nid Storage

50

Structural Height

29.3

Hazard Potential

Low

Nid Height

29
       
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.