Rock Creek
Rock Creek is an earth dam located in Beaverhead County, Montana, built in 1965. It carries a Low hazard potential classification.
About Rock Creek
The primary purpose of Rock Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by State Of Montana, D.n.r.c., T.l.m.d. (state). It impounds the Rock Creek near Dillon.
The dam stands 15 feet tall and stretches 345 feet across, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1965, 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 | Beaverhead |
| Nearest City | Dillon |
| River/Stream | Rock Creek |
| Coordinates | 44.93820, -112.21100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 345 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Normal Storage | 28 acre-ft |
| Drainage Area | 5 sq mi |
| Max Discharge | 158 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | STATE OF MONTANA, D.N.R.C., T.L.M.D. |
| Owner Type | State |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00185 |
| Federal ID | MT00185 |
| More Info | State Dam Safety Program |