Norfleet Lake Dam Reservoir Report

Last Updated: December 5, 2025

Norfleet Lake Dam, located in Henry, Missouri, serves multiple purposes including grade stabilization, fire protection, stock or small fish pond, and recreation.


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Summary

Completed in 1977, this earth dam stands at 22 feet tall with a hydraulic height of 21 feet and a structural height of 23 feet. It spans 355 feet in length, providing storage of up to 52 acre-feet with a normal storage capacity of 27 acre-feet.

Situated on the TR-Grand River, Norfleet Lake Dam features an uncontrolled spillway with a width of 26 feet. The dam's hazard potential is rated as low, and its condition assessment is marked as not rated. Despite being privately owned, the dam does not fall under state regulation, inspection, or enforcement. The risk assessment for Norfleet Lake Dam is moderate, highlighting the importance of ongoing risk management measures to ensure the safety and integrity of the structure.

With its picturesque location and vital role in water resource management, Norfleet Lake Dam stands as a testament to the importance of sustainable infrastructure in maintaining the balance between human needs and environmental stewardship. As a key feature in the Kansas City District, this dam serves as a vital component in the local ecosystem, providing essential services while also creating opportunities for recreation and enjoyment for the community.

Year Completed

1977

Dam Length

355

Dam Height

22

River Or Stream

TR-GRAND RIVER

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

21

Drainage Area

200

Nid Storage

52

Structural Height

23

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

23
       
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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.