Lazy J-d #1 is an earth dam located in Phillips County, Montana, built in 1952. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 600 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 Lazy J-d #1
The primary purpose of Lazy J-d #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Lazy J D Cattle Co (private). It impounds the Rock Creek.
The dam stands 30 feet tall and stretches 600 feet across, and has a maximum storage capacity of 356 acre-feet. Completed in 1952, 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 | Phillips |
| Nearest City | None |
| River/Stream | Rock Creek |
| Coordinates | 47.79890, -108.56350 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 600 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 356 acre-ft |
| Max Storage | 356 acre-ft |
| Normal Storage | 206 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Lazy J D Cattle Co |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01317 |
| Federal ID | MT01317 |
| More Info | State Dam Safety Program |