Green Lake Dam is a dam located in Pondera County, Montana, built in 1939. It carries a Low hazard potential classification.
Dam profile
NID height · 13 ft13 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 Green Lake Dam
Green Lake Dam is a dam in Pondera, Montana.
The dam stands 13 feet tall, and has a maximum storage capacity of 962 acre-feet. Completed in 1939, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | Montana |
| County | Pondera |
| Coordinates | 48.24330, -112.86000 |
Physical Characteristics
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 962 acre-ft |
| Max Storage | 962 acre-ft |
| Normal Storage | 453 acre-ft |
Ownership & Safety
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | MT00516 |
| Federal ID | MT00516 |
| More Info | State Dam Safety Program |