Douglas Creek Tailings Dam
Douglas Creek Tailings Dam is an earth dam located in Granite County, Montana. It carries a Significant hazard potential classification.
About Douglas Creek Tailings Dam
The primary purpose of Douglas Creek Tailings Dam 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 Teck Cominco American Incorporated (private). It impounds the Offstream.
The dam stands 60 feet tall, and has a maximum storage capacity of 240 acre-feet.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
At 60 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | Montana |
| County | Granite |
| River/Stream | Offstream |
| Coordinates | 46.52390, -113.18230 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 60 ft |
| Dam Height | 60 ft |
Storage & Hydraulics
| NID Storage | 240 acre-ft |
| Max Storage | 240 acre-ft |
| Normal Storage | 166 acre-ft |
Ownership & Safety
| Purpose | Tailings |
| Owner | TECK COMINCO AMERICAN INCORPORATED |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03853 |
| Federal ID | MT03853 |
| More Info | State Dam Safety Program |