Dams in Monroe County, Illinois
22Total Dams
4High Hazard
9Significant
Dam Safety in Monroe County, Illinois
Monroe County has 22 dams tracked in the National Inventory of Dams. Of these, 4 are classified as high hazard — meaning failure would probably cause loss of human life. Another 9 carry a significant hazard classification.
The average dam in Monroe County is 59 years old. The most common purpose is recreation. The tallest dam is Village Of Valmeyer Dam at 68 ft.
Explore more: Oldest dams in Illinois · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Hill Lake Dam | High | Not Available | 30 | Recreation | 1968 |
| Columbia Lakes South Lake Dam | High | Not Available | 25 | Recreation | 1990 |
| Stonegate Lake Dam | High | Not Available | 23 | Flood Risk Reduction | 1960 |
| Lake Of The Woods 2 Dam | High | Not Available | 0 | Recreation | |
| Waterloo New Reservoir Dam | Significant | Not Available | 42 | Water Supply | 1961 |
| West Lake Estates Dam | Significant | Not Available | 33 | Recreation | 1986 |
| Waterloo Reservoir 1 Dam | Significant | Not Available | 31 | Water Supply | 1924 |
| Westview Acres Lake Dam | Significant | Not Available | 29 | Recreation | 1999 |
| Waterloo Sportsman Club Lake 1 Dam | Significant | Not Available | 29 | Recreation | 1948 |
| Keeven Lake Dam | Significant | Not Available | 25 | Irrigation | 1998 |
| Finn's Lake Dam | Significant | Not Available | 23 | Irrigation | |
| Ylsa Lake Dam | Significant | Not Available | 20 | Recreation | 1995 |
| Waterloo Reservoir 2 Dam | Significant | Not Available | 19 | Water Supply | 1950 |
| Village Of Valmeyer Dam | Low | Not Available | 68 | Flood Risk Reduction | 1995 |
| Waterloo Sportsman Club Lake 2 Dam | Low | Not Available | 32 | Recreation | 1950 |
| Lake Loudel Dam | Low | Not Available | 28 | Recreation | 1928 |
| Fisher Lake Dam | Low | Not Available | 28 | Recreation | 1952 |
| Lake Emmett Dam | Low | Not Available | 23 | Recreation | 1949 |
| Lake Of The Woods 1 Dam | Low | Not Available | 21 | Recreation | 1974 |
| Lake Mildred Dam | Low | Not Available | 19 | Recreation | 1950 |
| Willow Lake Estates Dam | Low | Not Available | 17 | Recreation | 1996 |
| Lake Ronnie Dam | Low | Not Available | 17 | Recreation | 1952 |