Portneuf
Idaho — Caribou County — PORTNEUF RIVER SNAKE RIVER
Location
| State | Idaho |
| County | Caribou |
| River | PORTNEUF RIVER SNAKE RIVER |
| Coordinates | 42.87870, -111.94280 |
Physical Characteristics
| NID Height | 55 ft |
| Dam Height | 55 ft |
| Dam Length | 1,475 ft |
| NID Storage | 20,504 acre-ft |
| Max Storage | — |
| Surface Area | 1,593 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | November 4, 2019 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1912 |
| Primary Purpose | Other |
| Dam Type | — |
| Owner Type | Private |
| Other Name | Chesterfield Reservoir |
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.