Hoffmann Lake Dam Reservoir Report

Last Updated: December 22, 2025

Hoffmann Lake Dam, located in Gasconade, Missouri, is a privately owned structure that serves primarily for recreational purposes.


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Summary

Completed in 1972, this earth dam stands at a height of 30 feet and has a storage capacity of 144 acre-feet. With a normal storage of 78 acre-feet and a surface area of 9 acres, Hoffmann Lake Dam contributes to the local community's water resource management and provides opportunities for outdoor activities such as fishing, boating, and wildlife observation.

Situated on TR-Wallace Creek, this dam is under the jurisdiction of the Kansas City District and is not regulated or inspected by the state. Despite its low hazard potential, Hoffmann Lake Dam has not been rated for its condition assessment. While the dam does not have a spillway or outlet gates, it plays a crucial role in maintaining the ecological balance of the surrounding area and enhancing the quality of life for residents in High Gate. As an integral part of the local landscape, Hoffmann Lake Dam represents a harmonious blend of natural beauty and human ingenuity, making it a captivating destination for water resource and climate enthusiasts alike.

Although Hoffmann Lake Dam lacks certain regulatory oversight and detailed assessments, its significance as a recreational and ecological asset cannot be understated. With its serene waters and picturesque surroundings, this earth dam stands as a testament to the importance of sustainable water resource management and the enduring connection between humans and their natural environment. For those passionate about preserving our planet's water resources and addressing climate change, Hoffmann Lake Dam serves as a reminder of the delicate balance we must strike between progress and conservation in order to ensure a harmonious future for generations to come.

Year Completed

1972

Dam Height

30

River Or Stream

TR-WALLACE CREEK

Primary Dam Type

Earth

Surface Area

9

Drainage Area

75

Nid Storage

144

Structural Height

30

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

30
       
Seasonal Comparison

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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.