Faries Park Dredge Disposal Dam
Faries Park Dredge Disposal Dam is an earth dam located in Macon County, Illinois, built in 1994. It carries a High hazard potential classification.
About Faries Park Dredge Disposal Dam
The primary purpose of Faries Park Dredge Disposal Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by City Of Decatur (local government). It impounds the Trib Lake Decatur near Decatur.
The dam stands 29 feet tall and stretches 19,300 feet across, creates a reservoir covering 480 acres, has a maximum storage capacity of 3,900 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1994, the structure is 32 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 09/08/2025.
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 | Macon |
| Nearest City | Decatur |
| River/Stream | Trib Lake Decatur |
| Coordinates | 39.87841, -88.84771 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 19,300 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 3,900 acre-ft |
| Max Storage | 3,900 acre-ft |
| Surface Area | 480 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 300 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | CITY OF DECATUR |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 09/08/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50316 |
| Federal ID | IL50316 |
| More Info | State Dam Safety Program |