J B Long and Company #3
Montana — Lewis and Clark County
Location
| State | Montana |
| County | Lewis and Clark |
| Coordinates | 47.47370, -112.55460 |
Physical Characteristics
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 530 ft |
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | — |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1950 |
| Primary Purpose | Irrigation |
| Dam Type | — |
| Owner Type | — |
| Owner | STATE OF MONTANA, D.N.R.C., T.L.M.D. |
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.