Delaware Dams
83 dams tracked by the National Inventory of Dams
Total Dams
83
High Hazard
57
68.7%
Poor / Unsatisfactory
4
Average Age
89 yrs
Hazard Classification
High57 (68.7%)
Significant9 (10.8%)
Low17 (20.5%)
Condition Assessment
Satisfactory5 (6.0%)
Fair51 (61.4%)
Poor / Unsatisfactory4 (4.8%)
Not Rated23 (27.7%)
Federal
0
State
51
Local
15
Private
17
Tallest Dams
High Hazard Dams
Poor Condition Dams
All Dams in Delaware
Showing 1–25 of 51
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Wyoming Lake Dam Kent County | 13 | 1925 | High | Fair |
| Williams Pond Dam Sussex County | 14 | 1956 | High | Fair |
| Wheatley Pond Dam Kent County | 8 | — | High | Fair |
| Waples Pond Dam Sussex County | 10 | — | Low | Fair |
| Wagamons Pond Dam Sussex County | 17 | 1815 | High | Fair |
| Trussams Pond Dam Sussex County | 12 | — | Significant | Fair |
| Trap Pond Dam Sussex County | 14 | 1938 | High | Fair |
| Town of Selbyville Wastewater Lagoon Sussex County | 12 | — | High | Fair |
| Town of Middletown Wastewater Lagoon New Castle County | 13 | — | High | Fair |
| Swiggetts Pond Dam Sussex County | 12 | — | High | Fair |
| Silver Lake Dam - Milford Kent County | 13 | 1964 | High | Fair |
| Silver Lake Dam - Middletown New Castle County | 18 | 1931 | High | Fair |
| Silver Lake Dam - Dover Kent County | 17 | 1944 | High | Fair |
| Rock Manor Golf Course Dam New Castle County | 24 | 2007 | High | Fair |
| Reynolds Pond Sussex County | 11 | — | High | Fair |
| Red Mill Pond Dam Sussex County | 12 | 1925 | High | Fair |
| Portsville Mill Pond Dam Sussex County | 11 | — | Low | Fair |
| Porter Reservoir Dam New Castle County | 12 | 1909 | High | Fair |
| New Castle County Water Farm Wastewater Lagoon New Castle County | 29 | — | High | Fair |
| Newark Reservoir Dam New Castle County | 70 | 2005 | High | Fair |
| Mudmill Pond Dam Kent County | 15 | — | High | Fair |
| Moores Lake Dam Kent County | 14 | 1967 | Significant | Fair |
| Mcginnis Pond Dam Kent County | 16 | — | High | Fair |
| Mccauley Pond Dam Kent County | 19 | — | Significant | Fair |
| Marshall Millpond Dam Sussex County | 14 | — | Significant | Fair |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.