Mbpp Ash Pond
Mbpp Ash Pond is an earth dam located in Platte County, Wyoming, built in 1984. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mbpp Ash Pond
The primary purpose of Mbpp Ash Pond 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 Basin Electric Power Cooperative (public utility). It impounds the Laramie River Off Channel near Fort Laramie.
The dam stands 25 feet tall and stretches 2,400 feet across, creates a reservoir covering 105 acres, and has a storage capacity of 2,111 acre-feet. Completed in 1984, the structure is 42 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/01/2023.
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Location
| State | Wyoming |
| County | Platte |
| Nearest City | Fort Laramie |
| River/Stream | Laramie River Off Channel |
| Coordinates | 42.10833, -104.89528 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 2,400 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 2,111 acre-ft |
| Normal Storage | 2,111 acre-ft |
| Surface Area | 105 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Tailings |
| Owner | BASIN ELECTRIC POWER COOPERATIVE |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/01/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WY01752 |
| Federal ID | WY01752 |
| More Info | State Dam Safety Program |