Coffeen East Fork Shoal Creek Gate Dam
Low HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | Montgomery |
| Nearest City | GREENVILLE |
| River/Stream | EAST FORK SHOAL CREEK |
| Coordinates | 39.03301, -89.38364 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 45 ft |
| Year Completed | 2010 (16 years old) |
Storage & Hydraulics
| NID Storage | 107 acre-ft |
| Max Storage | 107 acre-ft |
| Normal Storage | 107 acre-ft |
| Drainage Area | 102 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | DYNEGY MIDWEST GENERATION, INC. |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 09/17/2025 |
| Emergency Action Plan | No |