| Quaddick Reservoir | |
|---|---|
 Quaddick Reservoir from Quaddick State Park | |
  Quaddick Reservoir Location in Connecticut | |
| Location | Thompson, Connecticut, United States |
| Coordinates | 41°56′48″N71°49′31″W / 41.9465539°N 71.8252172°W [1] |
| Type | Reservoir |
| Primary inflows | Five Mile River, Robbins Brook, Poor Farm Brook, Blackmore Brook |
| Primary outflows | Five Mile River |
| Catchment area | 35 square miles (91 km2) |
| Basin countries | United States |
| Max. length | 2.95 miles (4.75 km) |
| Max. width | 2,370 feet (720 m) |
| Surface area | 404 acres (163 ha) [1] |
| Max. depth | 18 feet (5.5 m) |
| Surface elevation | 403 feet (123 m) (85 m) |
| Islands | Green, Gould’s, Brandy Hill, Harris |
| Sections/sub-basins | Lower, Middle and Upper |
Quaddick Reservoir is a man-made body of water in the town of Thompson, Connecticut. The reservoir has three sections: Lower (124 acres), [2] Middle (203 acres), [3] and Upper (81 acres). [4] It originated with the completion of a dam on the Five Mile River in 1865. [5] Quaddick State Park sits on the eastern shore of the Middle Reservoir. [6]
