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.
| # | Dam | County | Max Storage (acre-ft) | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|---|
| 1 | Herbert Hoover Dike - Ciz D | Glades | 8,519,000 | 35 | Flood Risk Reduction | 1965 |
| 2 | S-65 | Osceola | 730,000 | 40 | Flood Risk Reduction | 1964 |
| 3 | Jim Woodruff Lock And Dam | Jackson | 406,200 | 92 | Navigation | 1954 |
| 4 | C-43 Reservoir | Hendry | 211,327 | 43 | Other | 2025 |
| 5 | Harris Bayou Inlet Structure | Lake | 202,247 | 12 | Flood Risk Reduction | |
| 6 | Apopka-beauclair Lock And Dam | Lake | 201,632 | 9 | Flood Risk Reduction | |
| 7 | Jackson Bluff Dam | Gadsden | 160,000 | 65 | Recreation | 1928 |
| 8 | Moss Bluff Lock And Spillway | Marion | 151,200 | 44 | Navigation | 1969 |
| 9 | Orange Lake Weir | Alachua | 143,771 | 15 | Recreation | |
| 10 | Kirkpatrick Dam And Rodman Reservoir | Putnam | 130,000 | 43 | Navigation | 1968 |
| 11 | Henry H. Buckman Lock | Putnam | 130,000 | 54 | Navigation | 1971 |
| 12 | Ortona Lock And Dam | Glades | 100,986 | 38 | Flood Risk Reduction | 1937 |
| 13 | Martin Plant Cooling Water Reservoir | Martin | 95,000 | 34 | Other | 1981 |
| 14 | Eugene J Burrell Lock And Dam | Lake | 88,000 | 19 | Flood Risk Reduction | 1957 |
| 15 | Structure 164 | Osceola | 84,000 | 54 | Flood Risk Reduction | 1969 |
| 16 | Oxy-2-8 | Hamilton | 78,097 | 29 | Other | 1976 |
| 17 | S-60 | Osceola | 73,000 | 23 | Flood Risk Reduction | 1966 |
| 18 | S-58 | Osceola | 73,000 | 19 | Flood Risk Reduction | 1969 |
| 19 | C-44 Reservoir | Martin | 65,650 | 34 | Other | 2021 |
| 20 | Inglis Main Dam & Spillway | Citrus | 61,400 | 43 | Flood Risk Reduction | 1968 |
| 21 | Inglis Bypass & Spillway | Levy | 61,400 | 18 | Other | 1909 |
| 22 | Structure 353 | Citrus | 60,000 | 18 | Flood Risk Reduction | 1962 |
| 23 | Altman Bay Dam | Hamilton | 56,320 | 27 | Other | 1970 |
| 24 | Long Percolation Pond Dam | Hamilton | 56,320 | 27 | Other | 1970 |
| 25 | Sa 10 S.c. | Hamilton | 56,000 | 50 | Tailings | 2005 |
| 26 | S-62 | Orange | 56,000 | 19 | Flood Risk Reduction | 1969 |
| 27 | Sfm2 Mosaic | Polk | 55,000 | 57 | Tailings | 1989 |
| 28 | Sc Gypsum | Hamilton | 52,500 | 105 | Other | |
| 29 | Ctc Gypsum | Hamilton | 52,500 | 105 | Other | |
| 30 | Do Gypsum | Hamilton | 52,500 | 105 | Tailings | |
| 31 | Manatee Cooling Water Reservoir | Manatee | 52,000 | 79 | Other | 1975 |
| 32 | G113 Control Structure | Osceola | 51,500 | 22 | Flood Risk Reduction | 1993 |
| 33 | S-41 | Palm Beach | 50,000 | 26 | Flood Risk Reduction | 1965 |
| 34 | Pol19 | Polk | 49,158 | 8 | Tailings | |
| 35 | G103 Control Structure | Polk | 49,000 | 24 | Flood Risk Reduction | 1965 |
| 36 | K-7b | Polk | 48,000 | 6 | Tailings | |
| 37 | K-7 | Polk | 47,000 | 50 | Tailings | |
| 38 | Lake Manatee Dam | Manatee | 46,600 | 54 | Water Supply | 1967 |
| 39 | F3b Four Corners Mine | Manatee | 45,500 | 68 | Tailings | 2005 |
| 40 | C.w. "bill" Young Reservoir | Hillsborough | 45,000 | 90 | Water Supply | 2005 |
| 41 | Pol105 | Polk | 44,815 | 11 | Tailings | |
| 42 | G-90 | Highlands | 44,676 | 15 | Flood Risk Reduction | 1962 |
| 43 | Sfm5 Mosaic | Polk | 44,000 | 53 | Tailings | 2005 |
| 44 | Cs-11 | Polk | 43,000 | 6 | Tailings | |
| 45 | Sa 8b S.c. | Hamilton | 42,000 | 34 | Tailings | 1999 |
| 46 | Golf Course | Citrus | 41,333 | 13 | Flood Risk Reduction | 1970 |
| 47 | Dead Lakes Dam | Gulf | 40,600 | 22 | Recreation | 1962 |
| 48 | G-119 | Miami-Dade | 40,000 | 22 | Water Supply | 1966 |
| 49 | Structure P-8 (hamilton) Water Conservation Structure | Polk | 38,280 | 14 | Recreation | |
| 50 | Swfwmd Structure P-8 (hamilton) Water Conservation | Polk | 38,280 | 23 | Flood Risk Reduction | 1965 |