Galena No 2 Mtis is a dam located in Shoshone County, Idaho. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 48 ft48 ft tall and 750 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Galena No 2 Mtis
The primary purpose of Galena No 2 Mtis 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 private-owned. It impounds the Lake Creek South Fork Coeur D Alene River near Silverton.
The dam stands 48 feet tall and stretches 750 feet across, creates a reservoir covering 2 acres, has a storage capacity of 60 acre-feet, and collects water from a drainage area of 0 square miles.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/04/2019.
At 48 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | Idaho |
| County | Shoshone |
| Nearest City | Silverton |
| River/Stream | Lake Creek South Fork Coeur D Alene River |
| Coordinates | 47.48500, -115.95970 |
Physical Characteristics
| NID Height | 48 ft |
| Dam Height | 48 ft |
| Dam Length | 750 ft |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 36 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Tailings |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 06/04/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00291 |
| Federal ID | ID00291 |
| More Info | State Dam Safety Program |