Alberts-Rueg Group Reservoir Report

Last Updated: December 6, 2025

The Alberts-Rueg Group is a private water management structure located in Pine Island, Minnesota along the Middle Fork Zumbro River.


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Summary

This Earth-type dam stands at a height of 24 feet and has a length of 375 feet, providing flood risk reduction to the surrounding area. Completed in 1963 by the USDA NRCS, this structure has a normal storage capacity of 17 acre-feet and a maximum discharge of 500 cubic feet per second.

Although the dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, it serves as a crucial component for managing water resources in the region. With a drainage area of 1.08 square miles, the Alberts-Rueg Group plays a vital role in mitigating flood risks and ensuring water security for the local community. While there have been no recent inspections, the structure remains operational and continues to support the surrounding ecosystem.

Despite its moderate risk assessment rating, the Alberts-Rueg Group remains a key asset for water resource management in Dodge County, Minnesota. With its uncontrolled spillway and stone core, this structure showcases a blend of traditional engineering principles with modern flood risk reduction techniques. As climate change continues to impact water resources, structures like the Alberts-Rueg Group will play an increasingly important role in safeguarding communities and ecosystems against the threat of flooding and water scarcity.

Year Completed

1963

Dam Length

375

Dam Height

24

River Or Stream

MIDDLE FORK ZUMBRO RIVER

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

24

Drainage Area

1.08

Nid Storage

85

Structural Height

25

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

25
       
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.