Anderson Lake Reservoir Report

Last Updated: December 5, 2025

Anderson Lake, also known as Vern Ostrom F Pond, is a privately owned water resource nestled in Cyrus, Minnesota.


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Summary

This Earth dam structure, completed in 1973, stands at a height of 9 feet and spans 180 feet in length, with a storage capacity of 600 acre-feet. The lake covers an area of 89 acres and serves primarily for purposes categorized as "Other," indicating its versatile use in the region.

Maintained by the Minnesota Department of Natural Resources, Anderson Lake is regulated and inspected regularly to ensure its safety and compliance with state standards. Despite being classified with a low hazard potential, the dam's condition assessment marked it as poor during its last inspection in 2017. The risk assessment for Anderson Lake ranks it as very high, highlighting the importance of ongoing monitoring and risk management measures to safeguard its surrounding environment and the community it serves. This data-rich resource is a valuable asset for water resource and climate enthusiasts seeking to understand and protect Minnesota's diverse aquatic ecosystems.

Year Completed

1973

Dam Length

180

Dam Height

9

River Or Stream

WOLF CREEK-TR

Primary Dam Type

Earth

Surface Area

89

Drainage Area

6.1

Nid Storage

600

Structural Height

9

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

9
       
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.