Keogh is an earth dam located in Jefferson County, Montana, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 519 ft long, taller than 68% of U.S. dams with a recorded height. 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 Keogh
The primary purpose of Keogh is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by U.s. D.o.i. F.w.s. (federal). It impounds the Little Whitetail Creek near Whitehall.
The dam stands 30 feet tall and stretches 519 feet across, and has a maximum storage capacity of 43 acre-feet. Completed in 1956, 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.
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Location
| State | Montana |
| County | Jefferson |
| Nearest City | Whitehall |
| River/Stream | Little Whitetail Creek |
| Coordinates | 46.07603, -112.12347 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 519 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 43 acre-ft |
| Max Storage | 43 acre-ft |
| Normal Storage | 25 acre-ft |
| Max Discharge | 300 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | U.s. D.o.i. F.w.s. |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00219 |
| Federal ID | MT00219 |
| More Info | State Dam Safety Program |