Largest Reservoirs in Delaware

Delaware has 83 dams with recorded storage capacity. The largest is Tailings Pond No. 3 Dam Getty Oil with 10,000 acre-feet of maximum storage. One acre-foot equals about 326,000 gallons — enough to supply roughly two households for a year.

#	Dam	County	Max Storage (acre-ft)	Height (ft)	Purpose	Year
1	Tailings Pond No. 3 Dam Getty Oil	New Castle	10,000	20	Other	1960
2	Edgar M. Hoopes Dam	New Castle	9,068	127	Water Supply	1932
3	Noxontown Pond Dam	New Castle	2,610	14	Recreation	1966
4	Silver Lake Dam - Dover	Kent	1,835	17	Recreation	1944
5	Newark Reservoir Dam	New Castle	1,582	70	Water Supply	2005
6	Mccauley Pond Dam	Kent	1,560	19	Fish and Wildlife Pond
7	Hearns Pond Dam	Sussex	1,434	14	Fish and Wildlife Pond	1912
8	Collins Pond Dam	Sussex	1,430	11	Recreation	1922
9	City Of Wilmington Sewage Lagoon	New Castle	1,370	21	Other
10	Coursey Pond Dam	Kent	1,171	20	Fish and Wildlife Pond	1967
11	Garrisons Lake Dam	Kent	1,164	11	Fish and Wildlife Pond	1964
12	Horseys Pond Dam	Sussex	1,057	19	Fish and Wildlife Pond	1956
13	Killen Pond Dam	Kent	1,005	16	Recreation	1969
14	Trussams Pond Dam	Sussex	944	12	Recreation
15	Trap Pond Dam	Sussex	942	14	Recreation	1938
16	Waples Pond Dam	Sussex	930	10	Fish and Wildlife Pond
17	Swiggetts Pond Dam	Sussex	920	12	Recreation
18	Brandywine Creek Dam No. 9	New Castle	807	9	Recreation	1800
19	Williams Pond Dam	Sussex	800	14	Recreation	1956
20	Concord Pond Dam	Sussex	749	14	Fish and Wildlife Pond
21	Mudmill Pond Dam	Kent	676	15	Fish and Wildlife Pond
22	Wyoming Lake Dam	Kent	669	13	Recreation	1925
23	Christiana Lake Dam	New Castle	648	17	Water Supply	1907
24	Red Mill Pond Dam	Sussex	636	12	Recreation	1925
25	Shallcross Lake Dam	New Castle	631	8	Recreation
26	Records Pond Dam	Sussex	612	25	Fish and Wildlife Pond	1900
27	Sunset Lake Dam	New Castle	553	13	Recreation	1900
28	Silver Lake Dam - Milford	Kent	520	13	Fish and Wildlife Pond	1964
29	Becks Pond Dam	New Castle	500	21	Fish and Wildlife Pond
30	Masseys Mill Pond Dam	Kent	490	12	Fish and Wildlife Pond	1933
31	Cubbage Pond Dam	Sussex	480	11	Recreation	1880
32	Reynolds Pond	Sussex	468	11	Recreation
33	Town Of Middletown Wastewater Lagoon	New Castle	462	13	Other
34	Silver Lake Dam - Middletown	New Castle	452	18	Recreation	1931
35	New Castle County Water Farm Wastewater Lagoon	New Castle	448	29	Other
36	Moores Lake Dam	Kent	446	14	Fish and Wildlife Pond	1967
37	Morris Millpond Dam	Sussex	440	10	Recreation	1929
38	Chipman Pond Dam	Sussex	438	14	Fish and Wildlife Pond	1915
39	Blairs Pond Dam	Kent	418	15	Fish and Wildlife Pond
40	Gordons Pond Dam	Sussex	416	7	Recreation	1967
41	Griffith Lake Dam	Kent	409	13	Fish and Wildlife Pond
42	Andrews Lake Dam	Kent	407	18	Fish and Wildlife Pond
43	Haven Lake Dam	Kent	390	17	Fish and Wildlife Pond
44	Mcginnis Pond Dam	Kent	376	16	Fish and Wildlife Pond
45	Lake Como Dam	Kent	369	15	Recreation	1938
46	Burton Pond Dam	Sussex	363	10	Recreation
47	Cartanza/ez Farms Dam	Kent	352	7	Recreation
48	Voshell Pond Dam	Kent	350	14	Recreation	1969
49	Millsboro Pond Dam	Sussex	336	15	Fish and Wildlife Pond	1920
50	Clendaniel Pond Dam	Sussex	330	10	Recreation	1810

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