Blackwell Mine Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Missouri |
| County | Washington |
| Nearest City | POTOSI |
| River/Stream | TRIB MADDEN CREEK |
| Coordinates | 38.05735, -90.65533 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 85 ft |
| Dam Height | 85 ft |
| Dam Length | 2,500 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 2,100 acre-ft |
| Max Storage | 2,100 acre-ft |
| Normal Storage | 1,190 acre-ft |
| Surface Area | 58 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,006 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Tailings |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/01/2022 |
| Emergency Action Plan | Yes |