Largest Reservoirs in Florida

Florida has 988 dams with recorded storage capacity. The largest is Herbert Hoover Dike - Ciz D with 8,519,000 acre-feet of maximum storage. One acre-foot equals about 326,000 gallons — enough to supply roughly two households for a year.

#DamCountyMax Storage (acre-ft)Height (ft)PurposeYear
1Herbert Hoover Dike - Ciz DGlades8,519,00035Flood Risk Reduction1965
2S-65Osceola730,00040Flood Risk Reduction1964
3Jim Woodruff Lock And DamJackson406,20092Navigation1954
4C-43 ReservoirHendry211,32743Other2025
5Harris Bayou Inlet StructureLake202,24712Flood Risk Reduction
6Apopka-beauclair Lock And DamLake201,6329Flood Risk Reduction
7Jackson Bluff DamGadsden160,00065Recreation1928
8Moss Bluff Lock And SpillwayMarion151,20044Navigation1969
9Orange Lake WeirAlachua143,77115Recreation
10Kirkpatrick Dam And Rodman ReservoirPutnam130,00043Navigation1968
11Henry H. Buckman LockPutnam130,00054Navigation1971
12Ortona Lock And DamGlades100,98638Flood Risk Reduction1937
13Martin Plant Cooling Water ReservoirMartin95,00034Other1981
14Eugene J Burrell Lock And DamLake88,00019Flood Risk Reduction1957
15Structure 164Osceola84,00054Flood Risk Reduction1969
16Oxy-2-8Hamilton78,09729Other1976
17S-60Osceola73,00023Flood Risk Reduction1966
18S-58Osceola73,00019Flood Risk Reduction1969
19C-44 ReservoirMartin65,65034Other2021
20Inglis Main Dam & SpillwayCitrus61,40043Flood Risk Reduction1968
21Inglis Bypass & SpillwayLevy61,40018Other1909
22Structure 353Citrus60,00018Flood Risk Reduction1962
23Altman Bay DamHamilton56,32027Other1970
24Long Percolation Pond DamHamilton56,32027Other1970
25Sa 10 S.c.Hamilton56,00050Tailings2005
26S-62Orange56,00019Flood Risk Reduction1969
27Sfm2 MosaicPolk55,00057Tailings1989
28Sc GypsumHamilton52,500105Other
29Ctc GypsumHamilton52,500105Other
30Do GypsumHamilton52,500105Tailings
31Manatee Cooling Water ReservoirManatee52,00079Other1975
32G113 Control StructureOsceola51,50022Flood Risk Reduction1993
33S-41Palm Beach50,00026Flood Risk Reduction1965
34Pol19Polk49,1588Tailings
35G103 Control StructurePolk49,00024Flood Risk Reduction1965
36K-7bPolk48,0006Tailings
37K-7Polk47,00050Tailings
38Lake Manatee DamManatee46,60054Water Supply1967
39F3b Four Corners MineManatee45,50068Tailings2005
40C.w. "bill" Young ReservoirHillsborough45,00090Water Supply2005
41Pol105Polk44,81511Tailings
42G-90Highlands44,67615Flood Risk Reduction1962
43Sfm5 MosaicPolk44,00053Tailings2005
44Cs-11Polk43,0006Tailings
45Sa 8b S.c.Hamilton42,00034Tailings1999
46Golf CourseCitrus41,33313Flood Risk Reduction1970
47Dead Lakes DamGulf40,60022Recreation1962
48G-119Miami-Dade40,00022Water Supply1966
49Structure P-8 (hamilton) Water Conservation StructurePolk38,28014Recreation
50Swfwmd Structure P-8 (hamilton) Water ConservationPolk38,28023Flood Risk Reduction1965

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