Yorkville Dam
Yorkville Dam is a gravity dam located in Kendall County, Illinois, built in 1961. It carries a Significant hazard potential classification.
About Yorkville Dam
The primary purpose of Yorkville Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Illinois Department Of Natural Resources (state). It impounds the Fox River near Yorkville.
The dam stands 12 feet tall and stretches 530 feet across, has a maximum storage capacity of 750 acre-feet, and collects water from a drainage area of 1,804 square miles. Completed in 1961, 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 08/08/2023.
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Location
| State | Illinois |
| County | Kendall |
| Nearest City | Yorkville |
| River/Stream | Fox River |
| Coordinates | 41.64343, -88.44311 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 530 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 750 acre-ft |
| Max Storage | 750 acre-ft |
| Normal Storage | 288 acre-ft |
| Drainage Area | 1,804 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | ILLINOIS DEPARTMENT OF NATURAL RESOURCES |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 08/08/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50088 |
| Federal ID | IL50088 |
| More Info | State Dam Safety Program |