Cobine's Folly Dam Reservoir Report

Last Updated: December 5, 2025

Located in Steelville, Missouri, Cobine's Folly Dam is a privately owned structure primarily used for recreation purposes.


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Summary

Completed in 1969, this earth dam stands at a height of 25 feet and has a storage capacity of 40 acre-feet. Situated on TR- DRY CREEK, the dam covers a surface area of 3 acres within a drainage area of 40 acres, making it an essential feature for water resource enthusiasts in the region.

Despite not being regulated by the state, Cobine's Folly Dam is categorized as having a high hazard potential. The condition assessment is listed as "Not Rated," suggesting a need for further evaluation and maintenance. The dam's emergency action plan status and risk management measures are also not specified, indicating potential areas of improvement for climate and water resource management enthusiasts interested in the site.

With its unique design as an earth dam with buttress core types, Cobine's Folly Dam offers a captivating opportunity for exploration and study for those passionate about water resource and climate-related structures. As one of the key recreational features in Crawford County, Missouri, the dam serves as a focal point for understanding the intersection between water management, safety, and environmental conservation in the region.

Year Completed

1969

Dam Height

25

River Or Stream

TR- DRY CREEK

Primary Dam Type

Earth

Surface Area

3

Drainage Area

40

Nid Storage

40

Structural Height

25

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

25
       
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.