Lake George Nwr (Ne Unit) Reservoir Report

Last Updated: May 4, 2026

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Lake George Nwr (Ne Unit) in North Dakota is a state-owned dam with a primary purpose of fire protection, stock, or small fish pond.


Summary

Built in 1938 by the USFWS, this earth dam has a height of 9 feet and a length of 1353 feet, providing a storage capacity of 409 acre-feet. The dam is situated on the Missouri River-OS and is regulated by the NDSWC, with state permitting, inspection, and enforcement in place.

With a low hazard potential and a moderate risk assessment rating, Lake George Nwr (Ne Unit) serves as a vital resource for fire protection and wildlife conservation in Kidder County. The dam's uncontrolled spillway and vertical lift outlet gate ensure proper water management and flood control, supporting a drainage area of 10.89 square miles. Despite being last structurally modified in 1993, the dam's condition assessment remains unrated, highlighting the need for ongoing monitoring and maintenance to ensure its continued effectiveness.

As part of the St. Paul District, Lake George Nwr (Ne Unit) plays a crucial role in the local ecosystem, providing essential habitat for aquatic species and serving as a recreational site for visitors. The dam's surface area of 47 acres and normal storage capacity of 122 acre-feet make it a valuable asset for water resource management and climate resilience efforts in the region. With a dedicated emergency action plan and updated risk assessment measures, Lake George Nwr (Ne Unit) stands as a testament to the importance of sustainable dam infrastructure in safeguarding our natural environment.

15-Day Long Term Forecast


Years Modified

1993 - Structural

Year Completed

1938

Dam Length

1353

Dam Height

9

River Or Stream

MISSOURI RIVER-OS

Primary Dam Type

Earth

Surface Area

47

Drainage Area

10.89

Nid Storage

409

Outlet Gates

Vertical Lift - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

9
       
Seasonal Comparison

5-Day Hourly Forecast Detail

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.