Venado Grande Lake Dam
Venado Grande Lake Dam is an earth dam located in Tazewell County, Illinois, built in 1975. It carries a Significant hazard potential classification.
About Venado Grande Lake Dam
The primary purpose of Venado Grande Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Venado Lake Homeowners Association (private). It impounds the Trib Mackinaw River near Green Valley-offstream.
The dam stands 44 feet tall and stretches 415 feet across, and has a maximum storage capacity of 1,178 acre-feet. Completed in 1975, 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. The most recent inspection on record was 04/12/2024.
At 44 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Illinois |
| County | Tazewell |
| Nearest City | Green Valley-offstream |
| River/Stream | Trib Mackinaw River |
| Coordinates | 40.42775, -89.51035 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 415 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 1,178 acre-ft |
| Max Storage | 1,178 acre-ft |
| Normal Storage | 776 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | VENADO LAKE HOMEOWNERS ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 04/12/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00993 |
| Federal ID | IL00993 |
| More Info | State Dam Safety Program |