Largest Reservoirs in Kentucky
Kentucky has 1017 dams with recorded storage capacity. The largest is Kentucky Dam with 7,535,400 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 | Kentucky Dam | Livingston | 7,535,400 | 206 | Flood Risk Reduction | 1944 |
| 2 | Wolf Creek Dam | Russell | 6,089,000 | 258 | Hydroelectric | 1951 |
| 3 | Barkley Lock And Dam | Lyon | 2,082,000 | 157 | Navigation | 1966 |
| 4 | Cannelton Locks And Dam | Hancock | 954,400 | 62 | Navigation | 1974 |
| 5 | Barren River Dam | Allen | 815,150 | 146 | Flood Risk Reduction | 1964 |
| 6 | John T. Myers Locks And Dam | Union | 740,200 | 54 | Navigation | 1975 |
| 7 | Green River Dam | Taylor | 723,200 | 144 | Flood Risk Reduction | 1969 |
| 8 | Markland Locks And Dam | Gallatin | 640,700 | 118 | Navigation | 1964 |
| 9 | Cave Run Dam | Bath | 614,100 | 148 | Flood Risk Reduction | 1965 |
| 10 | Captain Anthony Meldahl Locks And Dam | Bracken | 609,800 | 138 | Navigation | 1965 |
| 11 | Nolin River Dam | Edmonson | 609,400 | 167 | Flood Risk Reduction | 1963 |
| 12 | Newburgh Locks And Dam | Henderson | 581,600 | 57 | Navigation | 1975 |
| 13 | Mcalpine Locks And Dam | Jefferson | 525,260 | 50 | Navigation | 1964 |
| 14 | Laurel Dam | Laurel | 435,600 | 282 | Recreation | 1973 |
| 15 | Greenup Locks And Dam | Greenup | 351,700 | 78 | Navigation | 1962 |
| 16 | Rough River Dam | Grayson | 334,400 | 132 | Flood Risk Reduction | 1959 |
| 17 | Dix River Dam | Mercer | 320,000 | 287 | Hydroelectric | 1925 |
| 18 | Taylorsville Dam | Spencer | 291,670 | 162 | Flood Risk Reduction | 1983 |
| 19 | Buckhorn Dam | Perry | 167,900 | 160 | Flood Risk Reduction | 1960 |
| 20 | Fishtrap Dam | Pike | 164,360 | 195 | Flood Risk Reduction | 1969 |
| 21 | Grayson Dam | Carter | 118,990 | 120 | Flood Risk Reduction | 1968 |
| 22 | Yatesville Dam | Lawrence | 83,300 | 156 | Flood Risk Reduction | 1988 |
| 23 | Paintsville Dam | Johnson | 73,500 | 160 | Flood Risk Reduction | 1980 |
| 24 | Green River Lock And Dam 1 | Henderson | 62,400 | 23 | Navigation | 1970 |
| 25 | Green River Lock And Dam 2 | McLean | 53,700 | 26 | Navigation | 1956 |
| 26 | Carr Creek Dam Sediment Dam 2 - Littcarr | Knott | 47,700 | 104 | Other | 1975 |
| 27 | Cedar Creek Dam | Lincoln | 47,344 | 86 | Recreation | 1999 |
| 28 | Wood Creek Lake Dam | Laurel | 44,000 | 172 | Water Supply | 1969 |
| 29 | Green River Lock And Dam 3 | Ohio | 40,070 | 27 | Water Supply | 1836 |
| 30 | Peter Cave Fresh Water Impoundment | Martin | 33,617 | 290 | Other | |
| 31 | Dewey Dam - Brandykeg Dike | Floyd | 31,000 | 41 | Flood Risk Reduction | 1950 |
| 32 | Mud River Mps 51 - Lake Malone Dam | Muhlenberg | 31,000 | 56 | Flood Risk Reduction | 1961 |
| 33 | Kentucky River Lock And Dam 1 | Carroll | 25,290 | 35 | Navigation | 1839 |
| 34 | Martins Fork Dam | Harlan | 21,100 | 120 | Flood Risk Reduction | 1978 |
| 35 | Kentucky River Lock And Dam 3 | Owen | 19,580 | 22 | Navigation | 1844 |
| 36 | Doe Valley Lake Dam | Meade | 18,450 | 97 | Water Supply | 1962 |
| 37 | Cranks Creek Lake Dam | Harlan | 18,200 | 120 | Recreation | 1963 |
| 38 | Mud River Mps 6a | Logan | 18,115 | 69 | Flood Risk Reduction | 1973 |
| 39 | Beshear Lake Dam | Caldwell | 17,837 | 38 | Water Supply | 1962 |
| 40 | Ky River Lock & Dam 5 | Woodford | 17,390 | 36 | Recreation | 1844 |
| 41 | Cannon Creek Dam | Bell | 16,700 | 125 | Water Supply | 1972 |
| 42 | Kentucky River Lock & Dam 6 | Mercer | 16,310 | 34 | Navigation | 1891 |
| 43 | Buckeye Creek Dam | Perry | 16,108 | 300 | Water Supply | |
| 44 | Kentucky River Lock And Dam 4 | Franklin | 15,860 | 27 | Navigation | 1844 |
| 45 | Kentucky River Lock & Dam 9 | Jessamine | 15,030 | 36 | Navigation | 1907 |
| 46 | Kentucky River Lock & Dam 8 | Jessamine | 14,020 | 31 | Navigation | 1900 |
| 47 | Guist Creek Lake Dam | Shelby | 13,944 | 60 | Water Supply | 1961 |
| 48 | Middle Fork Impoundment | Martin | 13,802 | 190 | Tailings | |
| 49 | Razorblade Branch Slurry Impoundment | Letcher | 13,153 | 422 | Tailings | |
| 50 | Scotts Branch Slurry Impoundment | Pike | 12,518 | 305 | Tailings |