Otter Lake Low Flow Dam
Low HazardNot Available ConditionEmergency Action Plan: No
Location
| State | Illinois |
| County | Macoupin |
| Nearest City | HAGAMAN |
| River/Stream | OTTER CREEK |
| Coordinates | 39.46276, -89.90087 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 6 ft |
| Dam Height | 6 ft |
| Dam Length | 317 ft |
| Year Completed | 2008 (18 years old) |
Storage & Hydraulics
| NID Storage | 217 acre-ft |
| Max Storage | 217 acre-ft |
| Normal Storage | 105 acre-ft |
| Surface Area | 42 acres |
| Drainage Area | 10 sq mi |
| Max Discharge | 2,087 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | OTTER LAKE WATER COMMISSION |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 04/26/2023 |
| Emergency Action Plan | No |