Pine River Dam Reservoir Report

Last Updated: December 5, 2025

Pine River Dam, located in Crow Wing, Minnesota, is a concrete structure completed in 1886 by the US Army Corps of Engineers.


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Summary

With a height of 23 feet and a length of 1553 feet, the dam serves multiple purposes including fish and wildlife pond management, flood risk reduction, navigation, recreation, and water supply. The reservoir created by Pine River Dam has a normal storage capacity of 101,340 acre-feet, providing ample opportunities for recreational activities.

Despite its age, Pine River Dam remains a vital asset for the surrounding communities, but it is classified with a high hazard potential and very high risk assessment. The US Army Corps of Engineers continuously monitors and manages flood risks associated with the dam by prioritizing maintenance activities, engaging with local emergency managers, and regularly updating the emergency action plan. With a focus on public safety and environmental protection, the Corps ensures that the dam is structurally sound and ready to respond to any potential emergencies, making Pine River Dam a crucial water resource for the region.

Year Completed

1886

Dam Length

1553

Dam Height

23

River Or Stream

PINE RIVER

Primary Dam Type

Concrete

Surface Area

13700

Hydraulic Height

20

Drainage Area

562

Nid Storage

187700

Structural Height

22

Outlet Gates

Slide (sluice gate) - 13

Hazard Potential

High

Foundations

Soil

Nid Height

23
       
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.