Lockport Lock and Controlling Works
Illinois — Will County — CHICAGO SANITARY & SHIP CANAL
Location
| State | Illinois |
| County | Will |
| River | CHICAGO SANITARY & SHIP CANAL |
| Coordinates | 41.56893, -88.07805 |
Physical Characteristics
| NID Height | 65 ft |
| Dam Height | — |
| Dam Length | 1,100 ft |
| NID Storage | 25,000 acre-ft |
| Max Storage | 25,000 acre-ft |
| Surface Area | 2,112 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | February 20, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1933 |
| Primary Purpose | Navigation |
| Dam Type | Concrete |
| Owner Type | Federal |
| Owner | USACE - Chicago 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.