Upper White River Reservoir Report

Last Updated: December 5, 2025

Located in Neshkoro, Wisconsin, the Upper White River dam stands as a vital recreational spot for water resource and climate enthusiasts.


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Summary

Completed in 1923, this earth dam serves the primary purpose of recreation, offering a serene escape for visitors with a normal storage capacity of 620 acre-feet and a maximum discharge of 260 cubic feet per second. The dam's controlled spillway and low hazard potential make it a safe and inviting destination for outdoor activities.

With a fair condition assessment as of December 2019 and a very high risk assessment ranking, the Upper White River dam continues to be monitored and inspected regularly to ensure its structural integrity and safety. The dam boasts a hydraulic height of 11 feet and a structural height of 20 feet, providing not only a picturesque setting but also a crucial water management system for the surrounding area. Whether you're looking to enjoy the 64-acre surface area for boating, fishing, or simply soaking in the natural beauty, the Upper White River dam offers a peaceful retreat for all water enthusiasts to appreciate and enjoy.

Year Completed

1923

Dam Length

120

Dam Height

20

River Or Stream

WEST BRANCH WHITE

Primary Dam Type

Earth

Surface Area

64

Hydraulic Height

11

Drainage Area

1

Nid Storage

880

Structural Height

20

Hazard Potential

Low

Nid Height

20
       
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.