60Total Dams
16High Hazard
17Significant
Dam Safety in St. Clair County, Illinois
St. Clair County has 60 dams tracked in the National Inventory of Dams. Of these, 16 are classified as high hazard — meaning failure would probably cause loss of human life. Another 17 carry a significant hazard classification.
The average dam in St. Clair County is 64 years old. The most common purpose is recreation. The tallest dam is Stonewolf Golf Course Lake Dam at 72 ft.
Explore more: Oldest dams in Illinois · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Stonewolf Golf Course Lake Dam | High | Not assessed | 72 | Recreation | 1998 |
| Baldwin Plant Cooling Lake Dikes | High | Not assessed | 55 | Other | 1968 |
| Eckert Lake Dam | High | Not assessed | 42 | Recreation | 1960 |
| Davis Lake Dam | High | Not assessed | 37 | Recreation | 1940 |
| St. Clair County Retention Pond 1 Dam | High | Not assessed | 31 | Recreation | 1999 |
| Heitmans West Pond 2 Dam | High | Not assessed | 30 | Recreation | 1990 |
| Fairwood Lake Dam | High | Not assessed | 27 | Recreation | 1969 |
| Lawrence Lake Dam | High | Not assessed | 24 | Recreation | 1943 |
| Lake Christine Dam | High | Not assessed | 20 | Recreation | 1894 |
| Lake Lorraine Dam | High | Not assessed | 19 | Recreation | 1900 |
| Russel Funk Dam | High | Not assessed | 17 | Recreation | |
| Lake Stolberg Dam | High | Not assessed | 16 | Recreation | 1904 |
| Chenot Lake Dam | High | Not assessed | 15 | Recreation | 1960 |
| Woodfield Lake Estates Dam | High | Not assessed | 15 | Recreation | 2006 |
| Ravenel Lake Dam | High | Not assessed | 14 | Recreation | 2003 |
| Gebhardt Lake Dam | High | Not assessed | 0 | Recreation | |
| Weslake Dam | Significant | Not assessed | 48 | Recreation | 1962 |
| Wildwood Lake Estates Dam | Significant | Not assessed | 35 | Irrigation | 1982 |
| Stonehenge Lake Dam | Significant | Not assessed | 33 | Recreation | 2008 |
| Marissa Recreation Association South Lake Dam | Significant | Not assessed | 32 | Recreation | 1954 |
| Heitmans East Pond Dam | Significant | Not assessed | 30 | Recreation | 1974 |
| Marissa Recreation Association North Lake Dam | Significant | Not assessed | 27 | Recreation | 1954 |
| Far Oaks Lake Dam | Significant | Not assessed | 26 | Recreation | 1901 |
| Inez Lake Dam | Significant | Not assessed | 23 | Recreation | |
| Marissa Reservoir Dam | Significant | Not assessed | 22 | Recreation | 1938 |
| Spring Lake Road Dam | Significant | Not assessed | 21 | Recreation | 1968 |
| Arenas Dam | Significant | Not assessed | 20 | Recreation | 1950 |
| Timber Lake Dam | Significant | Not assessed | 20 | Flood Risk Reduction | |
| Crystal Lake Dam | Significant | Not assessed | 18 | Recreation | 1940 |
| Twin Lake Dam | Significant | Not assessed | 15 | Flood Risk Reduction | |
| Venice Station New Ash Pond | Significant | Not assessed | 15 | Other | |
| Ravenwood Lake Dam | Significant | Not assessed | 15 | Recreation | 1990 |
| Marissa Wwtp Basin Dam | Significant | Not assessed | 0 | Other | |
| Silver Bay LLC Lake Dam | Low | Not assessed | 67 | Other | 1991 |
| Peabody/randolph Plant/slurry Pond Dam | Low | Not assessed | 45 | Other | 1999 |
| Willow Wood Lake Dam | Low | Not assessed | 36 | Recreation | 2003 |
| Clovertowne Lake Dam | Low | Not assessed | 32 | Recreation | 1984 |
| Beil Lake 1 East Dam | Low | Not assessed | 31 | Recreation | 1942 |
| Beil Lake 1 South Dam | Low | Not assessed | 31 | Recreation | 1942 |
| Mueth Lake Dam | Low | Not assessed | 30 | Recreation | 1997 |
| Heartland Oaks 1 Dam | Low | Not assessed | 29 | Recreation | |
| Beil Lake 2 Dam | Low | Not assessed | 29 | Recreation | 1954 |
| Arrowwood Lake Dam | Low | Not assessed | 28 | Recreation | 2001 |
| Turkey Hill Lake Dam | Low | Not assessed | 28 | Recreation | 1954 |
| Memorial East Campus Lake Dam | Low | Not assessed | 28 | Flood Risk Reduction | 1958 |
| Horner Park Dam | Low | Not assessed | 27 | Recreation | |
| Teagle Lake Dam | Low | Not assessed | 26 | Recreation | 1968 |
| Smithton Sportsmans Club Lake Dam | Low | Not assessed | 26 | Recreation | 1957 |
| Kaskaskia Island Wildlife Area Lake Dam | Low | Not assessed | 24 | Recreation | 1990 |
| Freedom Farm Lake Dam | Low | Not assessed | 22 | Recreation | 1954 |
| Roachtown Lake Dam | Low | Not assessed | 21 | Recreation | 1963 |
| Heartland Oaks 2 Dam | Low | Not assessed | 15 | Recreation | |
| Millstadt Sportsman Club Lake Dam | Low | Not assessed | 15 | Recreation | 1951 |
| New West Fork Club Lake Dam | Low | Not assessed | 15 | Recreation | 1955 |
| Peabody/river King/lake Dam | Low | Not assessed | 13 | Other | 1957 |
| Scott Air Force Base Pond Dam | Low | Not assessed | 13 | Recreation | 1961 |
| Mcgraw Lake Dam | Low | Not assessed | 12 | Recreation | 1927 |
| Schwebel Brothers Dam | Low | Not assessed | 11 | Recreation | 1919 |
| Justamir Association Lake Dam | Low | Not assessed | 11 | Recreation | 1931 |
| Biebell Lake Dam | Low | Not assessed | 9 | Recreation | 1968 |