Big Lake (toole) is an earth dam located in Toole County, Montana, built in 1907. It carries a Low hazard potential classification.
Dam profile
NID height · 9 ft9 ft tall and 20 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 Big Lake (toole)
The primary purpose of Big Lake (toole) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Cherie Anderson (private). It impounds the Fred George & Pete Creek.
The dam stands 9 feet tall and stretches 20 feet across, creates a reservoir covering 31 acres, and has a maximum storage capacity of 143 acre-feet. Completed in 1907, the structure is over a century 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.
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Location
| State | Montana |
| County | Toole |
| Nearest City | None |
| River/Stream | Fred George & Pete Creek |
| Coordinates | 48.93590, -111.46430 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 20 ft |
| Year Completed | 1907 (119 years old) |
Storage & Hydraulics
| NID Storage | 143 acre-ft |
| Max Storage | 143 acre-ft |
| Normal Storage | 143 acre-ft |
| Surface Area | 31 acres |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Cherie Anderson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00549 |
| Federal ID | MT00549 |
| More Info | State Dam Safety Program |