Cokato Lake Reservoir Report

Last Updated: December 12, 2025

Cokato Lake, located in Wright County, Minnesota, is a state-regulated body of water with a primary purpose of serving as a Fish and Wildlife Pond.


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Summary

The dam at Cokato Lake is made of concrete and has a height of 7 feet, providing a storage capacity of 13,800 acre-feet. With a surface area of 560 acres and a drainage area of 45.8 square miles, Cokato Lake plays a crucial role in the local ecosystem.

The lake is situated near Sucker Creek and is managed by the Minnesota Department of Natural Resources' Division of Ecological and Water Resources. Despite its low hazard potential, the dam at Cokato Lake is regularly inspected and maintained to ensure its structural integrity. The last inspection in November 2015 found the dam to be in satisfactory condition, reassuring residents and officials of its safety.

Cokato Lake offers a serene environment for wildlife and outdoor enthusiasts in the Rockford area. With its diverse ecosystem and important role in the local water resource management, Cokato Lake stands as a valuable asset for both the community and the environment.

Dam Height

7

River Or Stream

SUCKER CREEK

Primary Dam Type

Concrete

Surface Area

560

Drainage Area

45.8

Nid Storage

13800

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

7
       
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.