Cell 4 a and B is an earth dam located in San Juan County, Utah. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 1,400 ft long, taller than 68% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Cell 4 a and B
The primary purpose of Cell 4 a and B 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 Energy Fuels Nuclear Inc. (private).
The dam stands 30 feet tall and stretches 1,400 feet across, and has a maximum storage capacity of 1,200 acre-feet.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Utah |
| County | San Juan |
| Nearest City | Bluff |
| Coordinates | 37.31000, -109.31000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 1,400 ft |
Storage & Hydraulics
| NID Storage | 1,200 acre-ft |
| Max Storage | 1,200 acre-ft |
Ownership & Safety
| Purpose | Tailings |
| Owner | Energy Fuels Nuclear Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT53582 |
| Federal ID | UT53582 |
| More Info | State Dam Safety Program |