Baker Hill Detention Basin Dam
Baker Hill Detention Basin Dam is an earth dam located in DuPage County, Illinois, built in 1999. It carries a High hazard potential classification.
About Baker Hill Detention Basin Dam
The primary purpose of Baker Hill Detention Basin 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 Baker Hill Condo Association (private). It impounds the East Branch Dupage River - Offstream near Glen Ellyn.
The dam stands 23 feet tall and stretches 800 feet across, and has a maximum storage capacity of 24 acre-feet. Completed in 1999, the structure is 27 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 10/25/2025.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Illinois dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Illinois |
| County | DuPage |
| Nearest City | Glen Ellyn |
| River/Stream | East Branch Dupage River - Offstream |
| Coordinates | 41.86101, -88.04669 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 800 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 24 acre-ft |
| Max Storage | 24 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | BAKER HILL CONDO ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 10/25/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL55014 |
| Federal ID | IL55014 |
| More Info | State Dam Safety Program |