Portwine #1
Montana — Powder River County — TR-BAY HORSE CREEK
Location
| State | Montana |
| County | Powder River |
| River | TR-BAY HORSE CREEK |
| Coordinates | 45.08450, -105.64600 |
Physical Characteristics
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 200 ft |
| NID Storage | 76 acre-ft |
| Max Storage | 76 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | Not Required |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1934 |
| Primary Purpose | Irrigation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | ZILBERT PORTWINE |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.