Techny Reservoir Dam
Illinois — Cook County — WEST FORK NORTH BRANCH CHICAGO RIVER
Location
| State | Illinois |
| County | Cook |
| River | WEST FORK NORTH BRANCH CHICAGO RIVER |
| Coordinates | 42.10606, -87.81067 |
Physical Characteristics
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 544 ft |
| NID Storage | 350 acre-ft |
| Max Storage | 350 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | No |
| Last Inspection | June 7, 2024 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | 1979 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | METROPOLITAN WATER RECLAMATION DISTRICT |
| Other Name | Techney 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.