Butler Taconite Initial Tailings
Butler Taconite Initial Tailings is an earth dam located in Itasca County, Minnesota, built in 1969. It carries a Undetermined hazard potential classification.
About Butler Taconite Initial Tailings
The primary purpose of Butler Taconite Initial Tailings is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Hanna Mining Company Age (private). It impounds the O'brien Creek - Os near Pengilly.
The dam stands 25 feet tall and stretches 24,400 feet across, and has a maximum storage capacity of 5,000 acre-feet. Completed in 1969, the structure is well into its service life at over 50 years old.
The most recent inspection on record was 06/12/2014. That was over 11 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Minnesota |
| County | Itasca |
| Nearest City | Pengilly |
| River/Stream | O'brien Creek - Os |
| Coordinates | 47.33445, -93.15621 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 18 ft |
| Dam Length | 24,400 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 5,000 acre-ft |
| Max Storage | 5,000 acre-ft |
| Normal Storage | 2,300 acre-ft |
Ownership & Safety
| Purpose | Tailings |
| Owner | Hanna Mining Company Age |
| Owner Type | Private |
| Hazard Classification | Undetermined |
| Condition Assessment | Not Rated |
| Last Inspection | 06/12/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00802 |
| Federal ID | MN00802 |
| More Info | State Dam Safety Program |