Fgd Effluent Pond #5
Fgd Effluent Pond #5 is an earth dam located in Lincoln County, Wyoming, built in 2018. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Fgd Effluent Pond #5
The primary purpose of Fgd Effluent Pond #5 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 Pacificorp (private). It impounds the Dry Gulch near County Road 304.
The dam stands 58 feet tall and stretches 6,000 feet across, creates a reservoir covering 48 acres, and has a maximum storage capacity of 1,481 acre-feet. Completed in 2018, the structure is relatively new.
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. The most recent inspection on record was 08/18/2021.
At 58 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | Wyoming |
| County | Lincoln |
| Nearest City | County Road 304 |
| River/Stream | Dry Gulch |
| Coordinates | 41.74110, -110.59070 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 58 ft |
| Dam Height | 58 ft |
| Dam Length | 6,000 ft |
| Year Completed | 2018 (8 years old) |
Storage & Hydraulics
| NID Storage | 1,481 acre-ft |
| Max Storage | 1,481 acre-ft |
| Normal Storage | 1,481 acre-ft |
| Surface Area | 48 acres |
Ownership & Safety
| Purpose | Tailings |
| Owner | PACIFICORP |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/18/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02598 |
| Federal ID | WY02598 |
| More Info | State Dam Safety Program |