East Fork Dam
Montana — Fergus County — EAST FORK BIG SPRING CREEK
Location
| State | Montana |
| County | Fergus |
| River | EAST FORK BIG SPRING CREEK |
| Coordinates | 46.98330, -109.28030 |
Physical Characteristics
| NID Height | 93 ft |
| Dam Height | 62 ft |
| Dam Length | 2,179 ft |
| NID Storage | 7,150 acre-ft |
| Max Storage | 7,150 acre-ft |
| Surface Area | 201 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | June 15, 2020 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1974 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | CITY OF LEWISTOWN |
| Other Name | Big Spring Creek - East Fork |
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.