International Center South Dam is a concrete dam located in Grundy County, Illinois, built in 2004. It carries a Significant hazard potential classification.
Dam profile
NID height · 7 ft7 ft tall and 78 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About International Center South Dam
The primary purpose of International Center South Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Prologis (private). It impounds the Trib Aux Sable Creek.
The dam stands 7 feet tall and stretches 78 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 34 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 2004, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 05/14/2021.
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Location
| State | Illinois |
| County | Grundy |
| Nearest City | None |
| River/Stream | Trib Aux Sable Creek |
| Coordinates | 41.45512, -88.30484 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 78.8 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 34 acre-ft |
| Max Storage | 34 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 444 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Prologis |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 05/14/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50513 |
| Federal ID | IL50513 |
| More Info | State Dam Safety Program |