Koeller And Klein Reservoir Report

Last Updated: December 13, 2025

Koeller and Klein is a privately-owned dam located in Grant, Wisconsin, along the TR Boice Creek.


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Summary

Built in 1963 by the USDA NRCS, this earth dam stands at a height of 27 feet and serves primarily for fire protection, stock, and small fish pond purposes. With a storage capacity of 18 acre-feet and a surface area of 1 acre, the dam plays a crucial role in managing water resources in the area.

Despite its low hazard potential and fair condition assessment, Koeller and Klein poses a very high risk due to its location and potential impact in the event of a failure. The dam has been inspected periodically, with the last assessment conducted in May 2020. While it meets regulatory requirements and is under the jurisdiction of the Wisconsin Department of Natural Resources, there are no emergency action plans in place, highlighting the need for risk management measures to be implemented to ensure the safety and integrity of the structure.

With its controlled spillway and historic significance as a water resource management feature, Koeller and Klein represents a valuable asset in the region. As water resource and climate enthusiasts, understanding the risk profile and condition of dams like this is essential for promoting sustainable water management practices and enhancing community resilience in the face of changing climate conditions.

Year Completed

1963

Dam Length

300

Dam Height

27

River Or Stream

TR BOICE CREEK

Primary Dam Type

Earth

Surface Area

1

Hydraulic Height

19

Drainage Area

0.3

Nid Storage

18

Structural Height

27

Hazard Potential

Low

Nid Height

27
       
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.