Dams in Cook County, Illinois
44Total Dams
14High Hazard
13Significant
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Thorton Quarry Gap Dam | High | Not Available | 116 | Flood Risk Reduction | 2013 |
| Thomas J. O'brien Lock And Controlling Works | High | Not Available | 37 | Navigation | 1960 |
| Chicago River And Harbor Controlling Works | High | Not Available | 31 | Navigation | 1938 |
| Upper Salt Creek Structure 3 Dam | High | Not Available | 26 | Flood Risk Reduction | 1985 |
| Upper Salt Creek Structure 2 Dam | High | Not Available | 23 | Flood Risk Reduction | 1984 |
| Busse Woods Reservoir South Dam | High | Not Available | 23 | Flood Risk Reduction | 1977 |
| Midlothian Creek Dam | High | Not Available | 22 | Flood Risk Reduction | 1975 |
| Lake George Dam | High | Not Available | 20 | Flood Risk Reduction | 1969 |
| Richton Crossing Dam | High | Not Available | 16 | Flood Risk Reduction | 1976 |
| Lower Elmhurst Dam | High | Not Available | 15 | Flood Risk Reduction | 1994 |
| Brentwood Townehome Dam | High | Not Available | 14 | Flood Risk Reduction | 1960 |
| Upper Salt Creek Structure 4 Dam | High | Not Available | 14 | Flood Risk Reduction | 1987 |
| Grasslands Basin Dam | High | Not Available | 10 | Flood Risk Reduction | |
| Cornell Avenue Dam | High | Not Available | 9 | Flood Risk Reduction | 1977 |
| Maple Lake Dam | Significant | Not Available | 25 | Recreation | 1918 |
| Bullfrog Lake Dam | Significant | Not Available | 17 | Recreation | 1958 |
| Saganashkee Slough 1 Dam | Significant | Not Available | 14 | Recreation | 1948 |
| White Pine Ditch Dam | Significant | Not Available | 13 | Flood Risk Reduction | 1975 |
| Papoose Lake Dam | Significant | Not Available | 12 | Recreation | 1956 |
| Willow Higgins Reservoir Dam | Significant | Not Available | 12 | Flood Risk Reduction | |
| Techny Reservoir Dam | Significant | Not Available | 11 | Flood Risk Reduction | 1979 |
| Touhy Avenue Reservoir Dam | Significant | Not Available | 10 | Flood Risk Reduction | 2004 |
| Galvins Lake Dam | Significant | Not Available | 10 | Recreation | 1938 |
| Main Street Triangle Dam | Significant | Not Available | 9 | Flood Risk Reduction | |
| Tampier Lake Dam | Significant | Not Available | 9 | Recreation | 1964 |
| Saganashkee Slough 6 Dam | Significant | Not Available | 7 | Recreation | 1948 |
| Anets Woods West Basin Dam | Significant | Not Available | 0 | Flood Risk Reduction | |
| Sauk Trail Lake Dam | Low | Not Available | 18 | Recreation | 1923 |
| Skokie Lagoons Dredge Disposal Dam | Low | Not Available | 16 | Debris Control | 1990 |
| South Lake Of The Coves Dam | Low | Not Available | 16 | Recreation | 1969 |
| Chicago Botanical Gardens South Inlet Dam | Low | Not Available | 15 | Flood Risk Reduction | 1970 |
| Wetfoot Lake Dam | Low | Not Available | 13 | Fish and Wildlife Pond | |
| Holy Family Villa Lake Dam | Low | Not Available | 12 | Recreation | 1927 |
| Colette Highlands Dam | Low | Not Available | 10 | Flood Risk Reduction | |
| Lake Of The Coves Dam | Low | Not Available | 10 | Recreation | 1969 |
| Mayfair Reservoir Dam | Low | Not Available | 9 | Flood Risk Reduction | 1977 |
| Saganashkee Slough 7 Dam | Low | Not Available | 9 | Recreation | 1948 |
| Keene Lake Dam | Low | Not Available | 8 | Recreation | 1944 |
| Arboretum Of South Barrington Dam | Low | Not Available | 8 | Flood Risk Reduction | |
| Streamwood Golf Course Dam | Low | Not Available | 8 | Flood Risk Reduction | 1989 |
| Woodfield Lakes Dam | Low | Not Available | 8 | Recreation | 1977 |
| Saganashkee Slough 2 Dam | Low | Not Available | 8 | Recreation | 1948 |
| Labuy Lake Dam | Low | Not Available | 7 | Recreation | |
| Orland Park Basin Dam | Low | Not Available | 7 | Flood Risk Reduction | 1992 |