Archer #2 is an earth dam located in Fergus County, Montana, built in 1964. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 150 ft long, taller than 76% 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 Archer #2
The primary purpose of Archer #2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by William C. & Fay L. Haynie (private). It impounds the Tr-north Fork Elk Creek near Mosby.
The dam stands 33 feet tall and stretches 150 feet across, has a maximum storage capacity of 65 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1964, 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.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Montana |
| County | Fergus |
| Nearest City | Mosby |
| River/Stream | Tr-north Fork Elk Creek |
| Coordinates | 46.99790, -108.66920 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 150 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 39 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | William C. & Fay L. Haynie |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00148 |
| Federal ID | MT00148 |
| More Info | State Dam Safety Program |