Something Green B Dam

Something Green B Dam is an earth dam located in Washington County, Missouri, built in 1978. It carries a High hazard potential classification.

About Something Green B Dam

The primary purpose of Something Green B Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Oak Land Dev. (private). It impounds the Rouge Creek near Potosi.

The dam stands 22 feet tall, creates a reservoir covering 10 acres, has a maximum storage capacity of 118 acre-feet, and collects water from a drainage area of 600 square miles. Completed in 1978, the structure is 48 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. The most recent inspection on record was 07/17/1980. That was 45 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Missouri dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyWashington
Nearest CityPotosi
River/StreamRouge Creek
Coordinates38.05096, -90.86973

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height22 ft
Year Completed1978 (48 years old)

Storage & Hydraulics

NID Storage118 acre-ft
Max Storage118 acre-ft
Normal Storage18 acre-ft
Surface Area10 acres
Drainage Area600 sq mi

Ownership & Safety

PurposeRecreation
OwnerOAK LAND DEV.
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection07/17/1980
Emergency Action PlanNot Required

Identifiers

NID IDMO30719
Federal IDMO30719
More InfoState Dam Safety Program

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