Mackay
Idaho — Custer County
Location
| State | Idaho |
| County | Custer |
| Coordinates | 43.95270, -113.67320 |
Physical Characteristics
| NID Height | 75 ft |
| Dam Height | 75 ft |
| Dam Length | 1,430 ft |
| NID Storage | 45,000 acre-ft |
| Max Storage | — |
| Surface Area | 1,392 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1918 |
| Primary Purpose | Other |
| Dam Type | — |
| Owner Type | — |
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.