Crown 3 Mine North Refuse Dam
Crown 3 Mine North Refuse Dam is an earth dam located in Montgomery County, Illinois, built in 1982. It carries a High hazard potential classification.
About Crown 3 Mine North Refuse Dam
Crown 3 Mine North Refuse Dam is a dam in Montgomery, Illinois. The dam is private-owned. It impounds the Perched Reservoir near Farmersville.
The dam stands 34 feet tall and stretches 6,143 feet across, and has a maximum storage capacity of 2,053 acre-feet. Completed in 1982, the structure is 44 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 08/08/2025.
At 34 feet, this dam is taller than 80% of dams nationwide.
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 | Montgomery |
| Nearest City | Farmersville |
| River/Stream | Perched Reservoir |
| Coordinates | 39.43311, -89.69783 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 6,143 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 2,053 acre-ft |
| Max Storage | 2,053 acre-ft |
| Normal Storage | 1,835 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 08/08/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50005 |
| Federal ID | IL50005 |
| More Info | State Dam Safety Program |