Harris #1
Harris #1 is an earth dam located in Petroleum County, Montana, built in 1975. It carries a Low hazard potential classification.
About Harris #1
The primary purpose of Harris #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Douglas Delaney (private). It impounds the Tr-duck Creek near Mosby.
The dam stands 14 feet tall and stretches 1,900 feet across, has a maximum storage capacity of 136 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, 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 | Petroleum |
| Nearest City | Mosby |
| River/Stream | Tr-duck Creek |
| Coordinates | 47.18360, -108.68640 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 1,900 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 136 acre-ft |
| Max Storage | 136 acre-ft |
| Normal Storage | 50 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 250 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | DOUGLAS DELANEY |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02178 |
| Federal ID | MT02178 |
| More Info | State Dam Safety Program |