24Total Dams
15High Hazard
0Significant
Dam Safety in New Castle County, Delaware
New Castle County has 24 dams tracked in the National Inventory of Dams. Of these, 15 are classified as high hazard — meaning failure would probably cause loss of human life.
The average dam in New Castle County is 88 years old. The most common purpose is recreation. The tallest dam is Edgar M. Hoopes Dam at 127 ft.
Explore more: Oldest dams in Delaware · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Edgar M. Hoopes Dam | High | Satisfactory | 127 | Water Supply | 1932 |
| Newark Reservoir Dam | High | Fair | 70 | Water Supply | 2005 |
| Carousel Pond Dam | High | Satisfactory | 36 | Recreation | |
| New Castle County Water Farm Wastewater Lagoon | High | Fair | 29 | Other | |
| Rock Manor Golf Course Dam | High | Fair | 24 | Flood Risk Reduction | 2007 |
| Becks Pond Dam | High | Fair | 21 | Fish and Wildlife Pond | |
| City of Wilmington Sewage Lagoon | High | Fair | 21 | Other | |
| City of Wilmington Sludge Disposal Area | High | Fair | 20 | Other | |
| Silver Lake Dam - Middletown | High | Fair | 18 | Recreation | 1931 |
| Wiggins Mill Pond Dam | High | Not assessed | 17 | Recreation | 1965 |
| Bellevue Lake Dam | High | Not assessed | 15 | Water Supply | 1933 |
| Sunset Lake Dam | High | Not assessed | 13 | Recreation | 1900 |
| Edgemoor Reservoir Dam | High | Not assessed | 13 | Water Supply | 1908 |
| Town of Middletown Wastewater Lagoon | High | Fair | 13 | Other | |
| Porter Reservoir Dam | High | Fair | 12 | Water Supply | 1909 |
| Tailings Pond No. 3 Dam Getty Oil | Low | Not assessed | 20 | Other | 1960 |
| Christiana Lake Dam | Low | Not assessed | 17 | Water Supply | 1907 |
| Tailings Pond No. 1 Dam Getty Oil | Low | Not assessed | 15 | Other | 1960 |
| Tailings Pond No. 2 Dam Getty Oil | Low | Not assessed | 15 | Other | 1960 |
| Noxontown Pond Dam | Low | Not assessed | 14 | Recreation | 1966 |
| Canal Farms Dam | Low | Not assessed | 13 | Flood Risk Reduction | 1962 |
| Lums Pond Dam | Low | Not assessed | 10 | Recreation | |
| Brandywine Creek Dam No. 9 | Low | Not assessed | 9 | Recreation | 1800 |
| Shallcross Lake Dam | Low | Not assessed | 8 | Recreation |