Solid Waste Disposal Cell D is an other dam located in Sweetwater County, Wyoming, built in 1977. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 46 ft46 ft tall and 10,647 ft long, taller than 91% 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 Solid Waste Disposal Cell D
The primary purpose of Solid Waste Disposal Cell D 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 Tata Chemicals North America (private). It impounds the Pond Draw Offstream near Flaming Gorge Reservoir.
The dam stands 46 feet tall and stretches 10,647 feet across, creates a reservoir covering 112 acres, has a maximum storage capacity of 1,479 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years old.
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. 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 11/13/2019.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Wyoming |
| County | Sweetwater |
| Nearest City | Flaming Gorge Reservoir |
| River/Stream | Pond Draw Offstream |
| Coordinates | 41.58333, -109.75500 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 10,647 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 1,479 acre-ft |
| Max Storage | 1,479 acre-ft |
| Normal Storage | 1,479 acre-ft |
| Surface Area | 112 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Tailings |
| Owner | Tata Chemicals North America |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 11/13/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02078 |
| Federal ID | WY02078 |
| More Info | State Dam Safety Program |