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 26–50 of 83
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Portsville Mill Pond Dam Sussex County | 11 | — | Low | Fair |
| Porter Reservoir Dam New Castle County | 12 | 1909 | High | Fair |
| Noxontown Pond Dam New Castle County | 14 | 1966 | Low | Not Rated |
| 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 |
| Morris Millpond Dam Sussex County | 10 | 1929 | Significant | Not Rated |
| Moores Lake Dam Kent County | 14 | 1967 | Significant | Fair |
| Millsboro Pond Dam Sussex County | 15 | 1920 | High | Poor |
| Mcginnis Pond Dam Kent County | 16 | — | High | Fair |
| Mccauley Pond Dam Kent County | 19 | — | Significant | Fair |
| Masseys Mill Pond Dam Kent County | 12 | 1933 | Low | Not Rated |
| Marshall Millpond Dam Sussex County | 14 | — | Significant | Fair |
| Lums Pond Dam New Castle County | 10 | — | Low | Not Rated |
| Lake Como Dam Kent County | 15 | 1938 | High | Fair |
| Killen Pond Dam Kent County | 16 | 1969 | Low | Not Rated |
| Ingram Pond Dam Sussex County | 12 | — | High | Fair |
| Hudson Pond Dam Sussex County | 9 | 1958 | Low | Poor |
| Horseys Pond Dam Sussex County | 19 | 1956 | High | Fair |
| Hearns Pond Dam Sussex County | 14 | 1912 | High | Satisfactory |
| Haven Lake Dam Kent County | 17 | — | High | Fair |
| Griffith Lake Dam Kent County | 13 | — | High | Poor |
| Goslee Mill Pond Dam Sussex County | 10 | — | Significant | Not Rated |
| Gordons Pond Dam Sussex County | 7 | 1967 | Low | Not Rated |
| Garrisons Lake Dam Kent County | 11 | 1964 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.