Riverstone Group Dam
Riverstone Group Dam is an earth dam located in Henry County, Illinois. It carries a High hazard potential classification.
About Riverstone Group Dam
Riverstone Group Dam is a dam in Henry, Illinois. The dam is owned by Riverstone Group, Inc. (private). It impounds the Trib Rock River near Cleveland.
The dam creates a reservoir covering 5 acres, and has a maximum storage capacity of 74 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 06/13/2023.
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 | Henry |
| Nearest City | Cleveland |
| River/Stream | Trib Rock River |
| Coordinates | 41.50100, -90.30160 |
Physical Characteristics
| Dam Type | Earth |
Storage & Hydraulics
| NID Storage | 74 acre-ft |
| Max Storage | 74 acre-ft |
| Surface Area | 5 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | RIVERSTONE GROUP, INC. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 06/13/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL40158 |
| Federal ID | IL40158 |
| More Info | State Dam Safety Program |