Something Green B Dam Reservoir Report

Last Updated: December 5, 2025

Something Green B Dam, located in Washington, Missouri, along Rouge Creek, is a privately owned earth dam primarily built for recreational purposes.


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Summary

Standing at a height of 22 feet, the dam has a storage capacity of 118 acre-feet and covers a surface area of 10 acres. Completed in 1978, the dam has not been inspected since July 1980, and its condition is currently rated as "Not Rated" with a high hazard potential.

Despite being a privately owned structure, Something Green B Dam falls under the jurisdiction of the state of Missouri and is not regulated, permitted, inspected, or enforced by any state agency. The dam's purpose is solely for recreation, with no associated locks or spillways. With a drainage area of 600 acres, the dam poses a high hazard potential, although its risk assessment, emergency action plan, and inundation maps are all currently unavailable. Given its age and lack of recent inspection, it is crucial for the owners and relevant authorities to ensure the safety and integrity of Something Green B Dam to mitigate any potential risks to the surrounding community and environment.

Year Completed

1978

Dam Height

22

River Or Stream

ROUGE CREEK

Primary Dam Type

Earth

Surface Area

10

Drainage Area

600

Nid Storage

118

Structural Height

22

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

22
       
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.