Greenwood Lake Dam
Greenwood Lake Dam is an earth dam located in Champaign County, Illinois, built in 1960. It carries a Significant hazard potential classification.
About Greenwood Lake Dam
The primary purpose of Greenwood Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Greenwood Lake Association (private). It impounds the Hillsbury Slough-offstream near Fisher-offstream.
The dam stands 15 feet tall and stretches 900 feet across, and has a maximum storage capacity of 114 acre-feet. Completed in 1960, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 06/28/2017.
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Location
| State | Illinois |
| County | Champaign |
| Nearest City | Fisher-offstream |
| River/Stream | Hillsbury Slough-offstream |
| Coordinates | 40.34241, -88.30195 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 900 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 114 acre-ft |
| Max Storage | 114 acre-ft |
| Normal Storage | 65 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | GREENWOOD LAKE ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 06/28/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL00513 |
| Federal ID | IL00513 |
| More Info | State Dam Safety Program |