American Zinc Smelter Company Large Lake Dam
Significant HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | Montgomery |
| Nearest City | HILLSBORO |
| River/Stream | MIDDLE FORK SHOAL CREEK |
| Coordinates | 39.12976, -89.50501 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 320 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 184 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | ASARCO INC. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 07/14/2021 |
| Emergency Action Plan | No |