Rmg Cell a Tsf is a rockfill dam located in Nye County, Nevada, built in 1997. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 94 ft94 ft tall and 13,249 ft long, taller than 98% 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 rockfill embankment section and the water level is illustrative.
About Rmg Cell a Tsf
The primary purpose of Rmg Cell a Tsf 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 Kinross Gold Inc - Round Mountain (private). It impounds the Unnamed Wash-os.
The dam stands 94 feet tall and stretches 13,249 feet across, creates a reservoir covering 226 acres, has a maximum storage capacity of 28,816 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1997, the structure is 29 years old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 10/21/2021.
At 94 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | Nevada |
| County | Nye |
| Nearest City | None |
| River/Stream | Unnamed Wash-os |
| Coordinates | 38.68639, -117.12222 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 94 ft |
| Dam Height | 90 ft |
| Dam Length | 13,249 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 28,816 acre-ft |
| Max Storage | 28,816 acre-ft |
| Normal Storage | 26,936 acre-ft |
| Surface Area | 226 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 10 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Tailings |
| Owner | Kinross Gold Inc - Round Mountain |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 10/21/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NV10506 |
| Federal ID | NV10506 |
| More Info | State Dam Safety Program |