Russel Funk Dam is an earth dam located in St. Clair County, Illinois. It carries a High hazard potential classification.
Dam profile
NID height · 17 ft17 ft tall and 700 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Russel Funk Dam
The primary purpose of Russel Funk Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Russel Funk (private). It impounds the Trib Rock Spring Branch near O'fallon.
The dam stands 17 feet tall and stretches 700 feet across, and has a maximum storage capacity of 55 acre-feet.
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. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 09/15/2023.
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 | St. Clair |
| Nearest City | O'fallon |
| River/Stream | Trib Rock Spring Branch |
| Coordinates | 38.59015, -89.88918 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 700 ft |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Normal Storage | 45 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Russel Funk |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Last Inspection | 09/15/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50669 |
| Federal ID | IL50669 |
| More Info | State Dam Safety Program |