Shields Lake Dam Reservoir Report

Last Updated: December 18, 2025

Shields Lake Dam, located in Marthasville, Missouri, is a privately owned earth dam with a primary purpose of recreation.


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Summary

Built in 1966, this dam stands at a height of 22 feet and has a storage capacity of 50 acre-feet. The dam is situated on the TR-Charrette Creek and serves as a popular spot for outdoor enthusiasts looking to enjoy the surrounding natural beauty.

With a low hazard potential and a condition assessment of "Not Rated," Shields Lake Dam offers a safe and serene environment for visitors to appreciate the tranquil waters and lush landscapes. Although not regulated by the state, this dam provides essential recreational opportunities for the local community, offering a surface area of 4 acres and a drainage area of 70 square miles. Its tranquil setting and abundant wildlife make it a haven for water resource and climate enthusiasts seeking a peaceful retreat in the heart of Warren County, Missouri.

While Shields Lake Dam may not have a designated spillway or outlet gates, its construction and design as an earth dam with a buttress core stand as a testament to its longevity and reliability. With its remote location and untouched surroundings, this dam serves as a hidden gem for those looking to escape the hustle and bustle of city life and immerse themselves in the natural wonders of the Missouri countryside.

Year Completed

1966

Dam Height

22

River Or Stream

TR-CHARRETTE CREEK

Primary Dam Type

Earth

Surface Area

4

Drainage Area

70

Nid Storage

50

Structural Height

22

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

22
       
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.