Threemile Storage West Dike
Threemile Storage West Dike is an earth dam located in Blaine County, Montana. It carries a Low hazard potential classification.
About Threemile Storage West Dike
The primary purpose of Threemile Storage West Dike is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bia (federal). It impounds the Threemile Creek - Os near Dodson.
The dam stands 8 feet tall and stretches 500 feet across, has a maximum storage capacity of 917 acre-feet, and collects water from a drainage area of 43 square miles.
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 | Blaine |
| Nearest City | Dodson |
| River/Stream | Threemile Creek - Os |
| Coordinates | 48.44417, -108.65528 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 500 ft |
Storage & Hydraulics
| NID Storage | 917 acre-ft |
| Max Storage | 917 acre-ft |
| Normal Storage | 303 acre-ft |
| Drainage Area | 43 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00964 |
| Federal ID | MT00964S001 |
| More Info | State Dam Safety Program |