Weiss Lake Dam Reservoir Report

Last Updated: December 8, 2025

Weiss Lake Dam, located in Gasconade, Missouri, along the TR-BARREN FK-BOEUF CREEK, was completed in 1950 and serves as a primary recreational spot in the area.


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Summary

The privately-owned Earth dam stands at a height of 30 feet and has a storage capacity of 64 acre-feet, with a normal storage level of 36 acre-feet. While the dam is categorized as low hazard potential, it is not currently rated for its condition assessment.

Managed by the St. Louis District of the US Army Corps of Engineers, the Weiss Lake Dam is not regulated by the state agencies and does not require state permitting, inspection, or enforcement. Despite its modest size with a surface area of 4 acres and drainage area of 15 square miles, the dam offers a serene escape for water resource and climate enthusiasts, providing opportunities for fishing, boating, and other outdoor activities. The dam's recreational focus makes it a popular destination for locals and visitors alike.

With its picturesque location and serene surroundings, Weiss Lake Dam offers a tranquil setting for recreation and relaxation. While not extensively modified or equipped with a spillway or outlet gates, the dam's primary purpose of recreation is evident in its design and construction. As water levels fluctuate, the dam continues to provide a peaceful retreat for nature lovers, making it a must-visit destination for those interested in water resources and climate-related activities in Missouri.

Year Completed

1950

Dam Height

30

River Or Stream

TR-BARREN FK-BOEUF CREEK

Primary Dam Type

Earth

Surface Area

4

Drainage Area

15

Nid Storage

64

Structural Height

30

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

30
       
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.