Ina Wildlife Development Project Reservoir Report

Last Updated: December 5, 2025

The Ina Wildlife Development Project, also known as the Knutson Structure, is a private-owned dam located in Ashby, Minnesota, along the Pomme de Terre River.


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Summary

Constructed in 1984 by the USDA NRCS, this earth dam stands at 9 feet in height and spans 610 feet in length, with a storage capacity of 485 acre-feet. It serves primarily for recreational purposes, providing a surface area of 202 acres for wildlife development and habitat enhancement.

Managed by the MNDNR EWR, the Ina Wildlife Development Project is regulated, inspected, and enforced by state authorities to ensure its safety and functionality. With a low hazard potential and a satisfactory condition assessment, the dam poses a moderate risk according to a risk assessment rating of 3. Despite being uncontrolled, the spillway width of 100 feet allows for adequate water flow during high discharge events, mitigating any potential flooding risks downstream.

This wildlife development project not only serves as a recreational area but also contributes to environmental conservation efforts in the region. With its stone core and soil foundation, the Ina Wildlife Development Project stands as a testament to the balance between water resource management and wildlife preservation in the face of changing climate conditions.

Year Completed

1984

Dam Length

610

Dam Height

9

River Or Stream

POMME DE TERRE RIVER-TR

Primary Dam Type

Earth

Surface Area

202

Drainage Area

3.98

Nid Storage

485

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

9
       
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.