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.
Location
| State | Missouri |
| County | Washington |
| Nearest City | Potosi |
| River/Stream | Rouge Creek |
| Coordinates | 38.05096, -90.86973 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 118 acre-ft |
| Max Storage | 118 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 600 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | OAK LAND DEV. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 07/17/1980 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO30719 |
| Federal ID | MO30719 |
| More Info | State Dam Safety Program |