28Total Dams
10High Hazard
6Significant
Dam Safety in Lake County, Illinois
Lake County has 28 dams tracked in the National Inventory of Dams. Of these, 10 are classified as high hazard — meaning failure would probably cause loss of human life. Another 6 carry a significant hazard classification.
The average dam in Lake County is 62 years old. The most common purpose is recreation. The tallest dam is Buffalo Creek Dam at 27 ft.
Explore more: Oldest dams in Illinois · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Buffalo Creek Dam | High | Not assessed | 27 | Flood Risk Reduction | 1983 |
| Tullamore Dam | High | Not assessed | 17 | Flood Risk Reduction | 1994 |
| Coopers Farm Sediment Storage Dam | High | Not assessed | 13 | Debris Control | |
| St. Marys Lake Dam | High | Not assessed | 12 | Recreation | 1921 |
| Forest Lake Dam | High | Not assessed | 11 | Recreation | 1935 |
| Countryside Lake Dam | High | Not assessed | 9 | Recreation | 1928 |
| Hawthorn Parkway Dam | High | Not assessed | 9 | Flood Risk Reduction | 2001 |
| Lake Charles Dam | High | Not assessed | 9 | Flood Risk Reduction | 1962 |
| Lancaster Court Dam | High | Not assessed | 8 | Flood Risk Reduction | |
| Grandwood Lake Dam | High | Not assessed | 0 | Recreation | |
| Waukegan Station West Ash Pond | Significant | Not assessed | 20 | Other | 1979 |
| Waukegan Station East Ash Pond Dam | Significant | Not assessed | 20 | Other | 1979 |
| Sylvan Lake Dam | Significant | Not assessed | 15 | Recreation | 1920 |
| Loch Lomond Dam | Significant | Not assessed | 14 | Recreation | 1958 |
| Round Lake Dam | Significant | Not assessed | 9 | Recreation | 1945 |
| Gray Hawk Center Dam | Significant | Not assessed | 8 | Flood Risk Reduction | |
| Timber Lake Dam | Low | Not assessed | 20 | Recreation | 1949 |
| Rasmussen Lake Dam | Low | Not assessed | 19 | Recreation | 1965 |
| Lake Amy Dam | Low | Not assessed | 18 | Recreation | 1969 |
| Hawthorn Woods Country Club Wwtp Dam | Low | Not assessed | 17 | Irrigation | 2006 |
| Countryside Landfill Dam | Low | Not assessed | 13 | Flood Risk Reduction | 1997 |
| Tower Lake Dam | Low | Not assessed | 12 | Recreation | 1915 |
| White Lake Dam | Low | Not assessed | 11 | Recreation | 1964 |
| Lake Linden Dam | Low | Not assessed | 10 | Recreation | 1955 |
| Lakeland Estates Dam | Low | Not assessed | 9 | Recreation | 1956 |
| Barclay Station Detention Dam | Low | Not assessed | 9 | Flood Risk Reduction | 1993 |
| Pond 2a Dam | Low | Not assessed | 8 | Flood Risk Reduction | |
| Slocum Lake Dam | Low | Not assessed | 8 | Recreation | 1983 |