Two Inlets Lake Reservoir Report

Last Updated: December 5, 2025

Two Inlets Lake in Minnesota is a picturesque body of water nestled in Becker County, offering a serene escape for water resource and climate enthusiasts.


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Summary

This man-made lake was completed in 1938 with a primary purpose of recreation, providing a surface area of 600 acres for outdoor activities. The dam, constructed of concrete with a gravity design, stands at a height of 11 feet and has a maximum storage capacity of 4,000 acre-feet.

With a low hazard potential and fair condition assessment, Two Inlets Lake is considered a relatively safe and well-maintained water resource. The controlled spillway, measuring 50 feet in width, helps manage water levels and mitigate flooding risks. The lake is regulated by the Minnesota Department of Natural Resources Environmental and Water Resources division, ensuring that state permitting, inspection, and enforcement measures are in place to protect the surrounding environment.

Surrounded by the tranquil beauty of nature, Two Inlets Lake offers a peaceful retreat for visitors to enjoy fishing, boating, and other recreational activities. Whether you're seeking a relaxing day on the water or a chance to explore the local wildlife, this charming lake provides an ideal setting for nature lovers to appreciate Minnesota's diverse landscape and water resources.

Year Completed

1938

Dam Length

80

Dam Height

6

River Or Stream

HAY CREEK

Primary Dam Type

Concrete

Surface Area

600

Hydraulic Height

1.9

Drainage Area

70

Nid Storage

4000

Structural Height

11

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

11
       
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.