Lake George Dam
High HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | Cook |
| Nearest City | MATTESON |
| River/Stream | TRIB BUTTERFIELD CREEK |
| Coordinates | 41.48308, -87.73271 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 320 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 539 acre-ft |
| Max Storage | 539 acre-ft |
| Normal Storage | 78 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 870 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | VILLAGE OF RICHTON PARK |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 05/07/2025 |
| Emergency Action Plan | No |