St. Clair County Retention Pond 1 Dam
High HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Illinois |
| County | St. Clair |
| Nearest City | BELLEVILLE |
| River/Stream | WOLF BRANCH CREEK |
| Coordinates | 38.54564, -89.98292 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 500 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 191 acre-ft |
| Max Storage | 191 acre-ft |
| Normal Storage | 43 acre-ft |
| Max Discharge | 1,660 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | ST. CLAIR COUNTY |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 06/13/2023 |
| Emergency Action Plan | Yes |