Lake In The Hills Dam 1
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Illinois |
| County | McHenry |
| Nearest City | LAKE IN THE HILLS |
| River/Stream | WOODS CREEK |
| Coordinates | 42.18013, -88.31755 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 780 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 969 acre-ft |
| Max Storage | 969 acre-ft |
| Normal Storage | 598 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 14,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | VILLAGE OF LAKE IN THE HILLS |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 10/30/2025 |
| Emergency Action Plan | Yes |