Kalepp Reservoir Report

Nearby: Dorchester

Last Updated: December 13, 2025

Kalepp, Lloyd is a private dam located on the North Fork Poplar River in Clark, Wisconsin.


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Summary

Constructed in 1965, this Earth dam stands at a height of 12 feet and has a hydraulic height of 8 feet. With a normal storage capacity of 70 acre-feet and a maximum storage of 280 acre-feet, this dam serves primarily for recreation purposes, offering a surface area of 34 acres for water enthusiasts to enjoy.

Despite its low hazard potential and fair condition assessment, Kalepp, Lloyd poses a very high risk due to its location and surrounding factors. The dam has been inspected as recently as August 2020, with inspections occurring every 10 years. Its controlled spillway type allows for a maximum discharge of 50 cfs, ensuring the safety of the area in cases of high water levels. Although no emergency action plan (EAP) has been prepared, the dam is regulated by the Wisconsin Department of Natural Resources (WIDNR), which oversees its permitting, inspection, and enforcement processes.

For water resource and climate enthusiasts, Kalepp, Lloyd provides an intriguing case study of a privately owned dam with a complex risk assessment profile. Its proximity to the North Fork Poplar River and its vital role in providing recreational opportunities make it a significant structure in the region. As efforts to manage water resources and mitigate climate-related risks continue to evolve, understanding the intricacies of dams like Kalepp, Lloyd is essential for ensuring the safety and sustainability of our water systems.

Year Completed

1965

Dam Length

2880

Dam Height

12

River Or Stream

NORTH FORK POPLAR

Primary Dam Type

Earth

Surface Area

34

Hydraulic Height

8

Drainage Area

1.3

Nid Storage

280

Structural Height

12

Hazard Potential

Low

Nid Height

12
       
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.