Randy Hansen Wildlife Dam Reservoir Report

Last Updated: December 5, 2025

Located in St.


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Summary

Francis, Minnesota, the Randy Hansen Wildlife Dam, also known as Hansen Dam, was completed in 1989 by the USDA NRCS. This private earth dam serves primarily for recreational purposes and stands at a height of 11 feet with a length of 150 feet. The dam has a storage capacity of 135 acre-feet, with a normal storage level of 54 acre-feet and a surface area of 20 acres. It spans over Seelye Brook-TR and is regulated by the Minnesota Department of Natural Resources.

With a low hazard potential and fair condition assessment, the Randy Hansen Wildlife Dam is equipped with an uncontrolled spillway and outlet gates. Although it does not have associated structures, it plays a crucial role in managing water resources in the area. The dam's risk assessment is moderate and it undergoes inspections every 8 years to ensure its safety and functionality. Its location within the Anoka County Wildlife Management Area makes it a valuable asset for both wildlife and climate enthusiasts interested in water resource management and conservation efforts.

Year Completed

1989

Dam Length

150

Dam Height

11

River Or Stream

SEELYE BROOK-TR

Primary Dam Type

Earth

Surface Area

20

Drainage Area

0.42

Nid Storage

135

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

11
       
Seasonal Comparison

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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.