Section 22 Midas Tailings Storage Facility Dam
Section 22 Midas Tailings Storage Facility Dam is an earth dam located in Elko County, Nevada. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Section 22 Midas Tailings Storage Facility Dam
The primary purpose of Section 22 Midas Tailings Storage Facility 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 Klondex Midas Operations Inc (private). It impounds the None near Winnemucca.
The dam stands 186 feet tall and stretches 2,190 feet across, and has a maximum storage capacity of 3,900 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/06/2021.
At 186 feet, this dam is taller than 99% of all dams in the United States.
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Location
| State | Nevada |
| County | Elko |
| Nearest City | Winnemucca |
| River/Stream | None |
| Coordinates | 41.24102, -116.76256 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 186 ft |
| Dam Height | 186 ft |
| Dam Length | 2,190 ft |
Storage & Hydraulics
| NID Storage | 3,900 acre-ft |
| Max Storage | 3,900 acre-ft |
| Normal Storage | 3,900 acre-ft |
| Spillway Type | None |
Ownership & Safety
| Purpose | Tailings |
| Owner | KLONDEX MIDAS OPERATIONS INC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/06/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NV10914 |
| Federal ID | NV10914 |
| More Info | State Dam Safety Program |