Shuman Reservoir Report

Last Updated: December 15, 2025

Shuman, located in Juneau, Wisconsin, is a privately owned earth dam completed in 2003 with a height of 6.5 feet and a storage capacity of 56 acre-feet.


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Summary

This dam serves to control water flow, with a maximum discharge of 515 cubic feet per second and a spillway type classified as uncontrolled. Despite being classified as having a low hazard potential, Shuman is subject to state regulation, permitting, inspection, and enforcement by the Wisconsin Department of Natural Resources (WIDNR).

The dam's primary purpose and associated structures are not specified, but it is situated in a region with a drainage area of 4.4 square miles and a surface area of 57.9 acres. The risk assessment for Shuman is moderate, indicating a potential for significant consequences in the event of failure. Although the dam's condition is not currently rated, it underwent its last inspection in May 2011, with inspections occurring every 10 years. Notably, Shuman does not have an Emergency Action Plan (EAP) in place, which is a crucial component of dam safety preparedness.

In terms of congressional representation, Shuman falls under the jurisdiction of Ron Kind (D) in the St. Paul District. With its strategic location and impact on water resources in the area, Shuman represents an important component of the overall water management system in Juneau, Wisconsin. Enthusiasts interested in water resource management and climate change will find Shuman to be an intriguing case study in dam infrastructure, regulation, and risk assessment in the state.

Year Completed

2003

Dam Length

1550

Dam Height

6.5

Primary Dam Type

Earth

Surface Area

57.9

Hydraulic Height

4

Drainage Area

4.4

Nid Storage

56

Structural Height

6.5

Hazard Potential

Low

Nid Height

7
       
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.