Olmsted Locks and Dam
Illinois — Ballard County
Location
| State | Illinois |
| County | Ballard |
| Coordinates | 37.18342, -89.06345 |
Physical Characteristics
| NID Height | 67 ft |
| Dam Height | 49 ft |
| Dam Length | 3,575 ft |
| NID Storage | 728,000 acre-ft |
| Max Storage | 728,000 acre-ft |
| Surface Area | 19,000 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 2018 |
| Primary Purpose | Navigation |
| Dam Type | — |
| Owner Type | — |
| Owner | USACE - Louisville District |
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.