Halmans #1
Halmans #1 is an earth dam located in Fallon County, Montana, built in 1954. It carries a Low hazard potential classification.
About Halmans #1
The primary purpose of Halmans #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Hubertus J Halmans (private). It impounds the Tr-pennel Creek near Ollie.
The dam stands 20 feet tall and stretches 420 feet across, and has a maximum storage capacity of 62 acre-feet. Completed in 1954, 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 | Fallon |
| Nearest City | Ollie |
| River/Stream | Tr-pennel Creek |
| Coordinates | 46.50200, -104.24610 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 420 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 32 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | HUBERTUS J HALMANS |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02769 |
| Federal ID | MT02769 |
| More Info | State Dam Safety Program |