| Hoopes Reservoir | |
| Location: | New Castle County, Delaware, United States |
| Coordinates: | 39.7743°N -75.6343°W |
| Pushpin Map: | Delaware#USA |
| Pushpin Label Position: | top |
| Pushpin Map Alt: | Location of Hoopes Reservoir in Delaware, USA. |
Hoopes Reservoir is a reservoir in New Castle County, Delaware.
The reservoir first impounded the water of Old Mill Stream and Red Clay Creek in 1932, with a dam built by the city of Wilmington, Delaware, for municipal drinking water. It has a water surface of, a maximum capacity of, and a normal capacity of .[1] The reservoir and its surroundings have been open to the public since 1971.[2] It is the largest reservoir in Delaware.
The dam, Edgar M. Hoopes Dam (National ID # DE00015), is a concrete gravity dam originally built in 1932 and restructured several times since. It is high and in length at the crest.[1] Its namesake, Edgar M. Hoopes, was Chief Engineer of the Wilmington Water Department from 1913 through 1918, according to a plaque on site.[2]