Manchester is a dam located in Cascade County, Montana. It carries a Significant hazard potential classification.
Dam profile
NID height · 8 ft8 ft tall. 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 Manchester
Manchester is a dam in Cascade, Montana. The dam is owned by Robert Stephens Jr. (private). It impounds the Tr - Sun River.
The dam stands 8 feet tall, and has a maximum storage capacity of 150 acre-feet.
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.
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Location
| State | Montana |
| County | Cascade |
| River/Stream | Tr - Sun River |
| Coordinates | 47.55500, -111.49900 |
Physical Characteristics
| NID Height | 8 ft |
| Dam Height | 8 ft |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Normal Storage | 100 acre-ft |
Ownership & Safety
| Purpose | Other |
| Owner | Robert Stephens Jr. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03964 |
| Federal ID | MT03964 |
| More Info | State Dam Safety Program |