Lake In The Hills Dam 1
Illinois — McHenry County — WOODS CREEK
Location
| State | Illinois |
| County | McHenry |
| River | WOODS CREEK |
| Coordinates | 42.18013, -88.31755 |
Physical Characteristics
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 780 ft |
| NID Storage | 969 acre-ft |
| Max Storage | 969 acre-ft |
| Surface Area | 9 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Not Available |
| EAP Status | Yes |
| Last Inspection | October 30, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1926 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | VILLAGE OF LAKE IN THE HILLS |
| Other Name | Lake In The Hills No. 1 |
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.