Lake Shetek Inlet Reservoir Report

Last Updated: December 13, 2025

Lake Shetek Inlet, located in Murray County, Minnesota, is a state-regulated water resource along the Des Moines River.


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Summary

This concrete dam serves primarily for recreational purposes, offering a tranquil setting for enthusiasts to enjoy various water activities. With a height of 8 feet and a storage capacity of 200 acre-feet, the inlet covers an expansive surface area of 4237 acres within a drainage area of 61.2 square miles.

Managed by the Minnesota Department of Natural Resources (MNDNR EWR), Lake Shetek Inlet has a low hazard potential and is deemed to be in satisfactory condition as of the last inspection in May 2018. The dam's structure, primarily composed of concrete with a buttress core type, supports the surrounding ecosystem and contributes to the overall health of the watershed. Despite the absence of spillways or outlet gates, the inlet's design and maintenance ensure its operational efficiency and safety for the community.

While the dam's construction year remains unknown, its presence enhances the scenic beauty and recreational opportunities of the area. Visitors can explore the serene waters of Lake Shetek Inlet, engage in fishing, boating, and wildlife observation, all while appreciating the ecological significance of this vital water resource. With a commitment to state oversight and maintenance, Lake Shetek Inlet stands as a testament to responsible water management and climate resilience in the region.

Dam Height

8

River Or Stream

DES MOINES RIVER

Primary Dam Type

Concrete

Surface Area

4237

Drainage Area

61.2

Nid Storage

200

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

8
       
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.