Tallest Dams in Delaware

Delaware has 83 dams with recorded heights. The tallest is Edgar M. Hoopes Dam at 127 feet. Taller dams impound more water and carry greater potential energy, which is why height is a key factor in hazard classification and inspection requirements.

#	Dam	County	Height (ft)	Type	Purpose	Hazard	Year
1	Edgar M. Hoopes Dam	New Castle	127	Concrete	Water Supply	High	1932
2	Newark Reservoir Dam	New Castle	70	Gravity	Water Supply	High	2005
3	Carousel Pond Dam	New Castle	36	Gravity	Recreation	High
4	New Castle County Water Farm Wastewater Lagoon	New Castle	29	Gravity	Other	High
5	Records Pond Dam	Sussex	25	Gravity	Fish and Wildlife Pond	High	1900
6	Rock Manor Golf Course Dam	New Castle	24	Gravity	Flood Risk Reduction	High	2007
7	Becks Pond Dam	New Castle	21	Gravity	Fish and Wildlife Pond	High
8	City Of Wilmington Sewage Lagoon	New Castle	21	Gravity	Other	High
9	Coursey Pond Dam	Kent	20	Gravity	Fish and Wildlife Pond	High	1967
10	City Of Wilmington Sludge Disposal Area	New Castle	20	Gravity	Other	High
11	Tailings Pond No. 3 Dam Getty Oil	New Castle	20	Gravity	Other	Low	1960
12	Mccauley Pond Dam	Kent	19	Gravity	Fish and Wildlife Pond	Significant
13	Horseys Pond Dam	Sussex	19	Gravity	Fish and Wildlife Pond	High	1956
14	Andrews Lake Dam	Kent	18	Gravity	Fish and Wildlife Pond	Significant
15	Silver Lake Dam - Middletown	New Castle	18	Gravity	Recreation	High	1931
16	Haven Lake Dam	Kent	17	Gravity	Fish and Wildlife Pond	High
17	Silver Lake Dam - Dover	Kent	17	Gravity	Recreation	High	1944
18	Christiana Lake Dam	New Castle	17	Other	Water Supply	Low	1907
19	Wiggins Mill Pond Dam	New Castle	17	Gravity	Recreation	High	1965
20	Diamond Pond Dam	Sussex	17	Gravity	Recreation	Low
21	Wagamons Pond Dam	Sussex	17	Gravity	Fish and Wildlife Pond	High	1815
22	Killen Pond Dam	Kent	16	Gravity	Recreation	Low	1969
23	Mcginnis Pond Dam	Kent	16	Gravity	Fish and Wildlife Pond	High
24	Lake Como Dam	Kent	15	Gravity	Recreation	High	1938
25	Blairs Pond Dam	Kent	15	Gravity	Fish and Wildlife Pond	High
26	Mudmill Pond Dam	Kent	15	Gravity	Fish and Wildlife Pond	High
27	Tailings Pond No. 1 Dam Getty Oil	New Castle	15	Gravity	Other	Low	1960
28	Tailings Pond No. 2 Dam Getty Oil	New Castle	15	Gravity	Other	Low	1960
29	Bellevue Lake Dam	New Castle	15	Gravity	Water Supply	High	1933
30	Millsboro Pond Dam	Sussex	15	Gravity	Fish and Wildlife Pond	High	1920
31	Abbotts Pond Dam	Sussex	15	Gravity	Fish and Wildlife Pond	High	1960
32	City Of Laurel Sewage Lagoon	Sussex	15	Gravity	Other	High
33	Voshell Pond Dam	Kent	14	Gravity	Recreation	High	1969
34	Moores Lake Dam	Kent	14	Gravity	Fish and Wildlife Pond	Significant	1967
35	Noxontown Pond Dam	New Castle	14	Gravity	Recreation	Low	1966
36	Marshall Millpond Dam	Sussex	14	Gravity	Recreation	Significant
37	Williams Pond Dam	Sussex	14	Gravity	Recreation	High	1956
38	Trap Pond Dam	Sussex	14	Gravity	Recreation	High	1938
39	Craigs Pond	Sussex	14	Gravity	Fish and Wildlife Pond	Low
40	Concord Pond Dam	Sussex	14	Gravity	Fish and Wildlife Pond	High
41	Chipman Pond Dam	Sussex	14	Gravity	Fish and Wildlife Pond	High	1915
42	Hearns Pond Dam	Sussex	14	Gravity	Fish and Wildlife Pond	High	1912
43	Wyoming Lake Dam	Kent	13	Gravity	Recreation	High	1925
44	Griffith Lake Dam	Kent	13	Gravity	Fish and Wildlife Pond	High
45	Silver Lake Dam - Milford	Kent	13	Gravity	Fish and Wildlife Pond	High	1964
46	Sunset Lake Dam	New Castle	13	Gravity	Recreation	High	1900
47	Edgemoor Reservoir Dam	New Castle	13	Gravity	Water Supply	High	1908
48	Town Of Middletown Wastewater Lagoon	New Castle	13	Gravity	Other	High
49	Canal Farms Dam	New Castle	13	Gravity	Flood Risk Reduction	Low	1962
50	Betts Pond Main Dam	Sussex	13	Gravity	Recreation	High

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