Plentywood Sewage Lagoon is an earth dam located in Sheridan County, Montana, built in 1954. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 3,000 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 Plentywood Sewage Lagoon
Plentywood Sewage Lagoon is a dam in Sheridan, Montana. The dam is owned by City of Plentywood (local government). It impounds the Tr-big Muddy Creek near Homestead.
The dam stands 9 feet tall and stretches 3,000 feet across, and has a maximum storage capacity of 200 acre-feet. Completed in 1954, the structure is well into its service life at over 50 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Sheridan |
| Nearest City | Homestead |
| River/Stream | Tr-big Muddy Creek |
| Coordinates | 48.76960, -104.57220 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 3,000 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 189 acre-ft |
Ownership & Safety
| Purpose | Other |
| Owner | City of Plentywood |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01407 |
| Federal ID | MT01407 |
| More Info | State Dam Safety Program |