Ruen Pond Reservoir Report

Last Updated: December 5, 2025

Ruen Pond, also known as H.Ruen, is a private water resource located in Fillmore, Minnesota.


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Summary

Managed by the USDA NRCS, this Earth-type dam was completed in 1970 for the primary purpose of flood risk reduction along the Duschee Creek. Standing at 29 feet tall and 315 feet long, Ruen Pond has a storage capacity of 32 acre-feet, with a normal storage level of 7 acre-feet.

The dam has a low hazard potential and is currently in fair condition, last inspected in June 2017. Despite being uncontrolled, the spillway type is considered uncontrolled, with a maximum discharge capacity of 238 cubic feet per second. While the risk assessment is moderate, the dam is regulated and inspected by the Minnesota Department of Natural Resources, with permitting, inspection, and enforcement measures in place to ensure its safety and compliance with state regulations. For water resource and climate enthusiasts, Ruen Pond serves as a fascinating example of private ownership and management of a vital flood risk reduction infrastructure in Minnesota's water landscape.

Year Completed

1970

Dam Length

315

Dam Height

26

River Or Stream

DUSCHEE CREEK-TR

Primary Dam Type

Earth

Drainage Area

0.4

Nid Storage

32

Structural Height

29

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

29
       
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.