Fly Ash Disposal Cell B is an earth dam located in Sweetwater County, Wyoming, built in 2003. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 16 ft16 ft tall and 3,300 ft long. 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 Fly Ash Disposal Cell B
Fly Ash Disposal Cell B is a dam in Sweetwater, Wyoming. The dam is owned by Tata Chemicals North America (private). It impounds the Pond Draw near General Chemical.
The dam stands 16 feet tall and stretches 3,300 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 194 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2003, the structure is relatively new.
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.
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Location
| State | Wyoming |
| County | Sweetwater |
| Nearest City | General Chemical |
| River/Stream | Pond Draw |
| Coordinates | 41.58600, -109.75200 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 3,300 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 194 acre-ft |
| Max Storage | 194 acre-ft |
| Normal Storage | 194 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| 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 | WY02345 |
| Federal ID | WY02345 |
| More Info | State Dam Safety Program |