13Total Dams
2High Hazard
2Significant
Dam Safety in Washington County, Illinois
Washington County has 13 dams tracked in the National Inventory of Dams. Of these, 2 are classified as high hazard — meaning failure would probably cause loss of human life. Another 2 carry a significant hazard classification.
The average dam in Washington County is 66 years old. The most common purpose is recreation. The tallest dam is Prairie State Energy Raw Water Dam at 40 ft.
Explore more: Oldest dams in Illinois · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Prairie State Energy Raw Water Dam | High | Not assessed | 40 | Water Supply | 2010 |
| Nashville City Reservoir Dam | High | Not assessed | 26 | Recreation | 1935 |
| Wildlife Lake Dam | Significant | Not assessed | 30 | Water Supply | 1941 |
| Illinois Central Railroad Reservoir Dam | Significant | Not assessed | 24 | Recreation | 1930 |
| Williams Lake Dam | Low | Not assessed | 29 | Recreation | 1968 |
| Washington County Lake Dam | Low | Not assessed | 26 | Recreation | 1962 |
| Piney Wood Lake Dam | Low | Not assessed | 26 | Recreation | 1954 |
| Hickory Lake Dam | Low | Not assessed | 24 | Recreation | 1971 |
| Schneider Pond Dam 1 | Low | Not assessed | 23 | Other | 1968 |
| Habbes Lake Dam | Low | Not assessed | 19 | Fire Protection, Stock, Or Small Fish Pond | 1974 |
| Nashville City Reservoir 2 Dam | Low | Not assessed | 18 | Other | 1935 |
| Huegelys Lake Dam | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Flying M Ranch Lake Dam | Low | Not assessed | 11 | Recreation | 1963 |