Largest Reservoirs in Arkansas
Arkansas has 1216 dams with recorded storage capacity. The largest is Bull Shoals Dam with 5,408,000 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 | Bull Shoals Dam | Baxter | 5,408,000 | 282 | Flood Risk Reduction | 1951 |
| 2 | Blakely Mountain Dam | Garland | 3,760,700 | 240 | Flood Risk Reduction | 1953 |
| 3 | Greers Ferry Dam - Saddle Dike 2 | Cleburne | 2,844,000 | 72 | Flood Risk Reduction | 1962 |
| 4 | Norfork Dam | Baxter | 1,983,000 | 248 | Flood Risk Reduction | 1944 |
| 5 | Beaver Dam - Saddle Dike 3 | Carroll | 1,952,000 | 229 | Flood Risk Reduction | 1963 |
| 6 | Millwood Dam - Okay Levee | Howard | 1,854,930 | 91 | Flood Risk Reduction | 1966 |
| 7 | Degray Dam - Saddle Dike | Clark | 1,377,100 | 243 | Flood Risk Reduction | 1969 |
| 8 | Degray Dam | Clark | 1,377,100 | 98 | Flood Risk Reduction | 1969 |
| 9 | Narrows Dam | Pike | 600,600 | 196 | Flood Risk Reduction | 1950 |
| 10 | Dequeen Dam | Sevier | 370,600 | 160 | Flood Risk Reduction | 1977 |
| 11 | Nimrod Dam | Perry | 336,000 | 103 | Flood Risk Reduction | 1942 |
| 12 | Blue Mountain Dam | Yell | 258,000 | 115 | Flood Risk Reduction | 1947 |
| 13 | Carpenter | Garland | 235,500 | 110 | Hydroelectric | 1932 |
| 14 | Gillham Dam | Howard | 221,800 | 160 | Flood Risk Reduction | 1975 |
| 15 | Lake Maumelle Dam | Pulaski | 220,000 | 67 | Water Supply | 1957 |
| 16 | Dierks Dam | Sevier | 159,500 | 153 | Flood Risk Reduction | 1975 |
| 17 | Ozark-jetta Taylor Lock And Dam | Franklin | 148,400 | 100 | Navigation | 1969 |
| 18 | Lake Fort Smith Dam | Poinsett | 140,000 | 212 | Water Supply | 1936 |
| 19 | Lake Erling Dam | Lafayette | 138,250 | 43 | Water Supply | 1956 |
| 20 | Wilbur D. Mills Lock And Dam | Arkansas | 133,200 | 68 | Navigation | 1967 |
| 21 | Murray Lock And Dam | Pulaski | 108,500 | 77 | Navigation | 1969 |
| 22 | H.k. Thatcher Lock And Dam | Union | 108,000 | 80 | Navigation | 1983 |
| 23 | Lock And Dam No 8 | Union | 85,000 | 25 | Navigation | 1911 |
| 24 | Emmett Sanders Lock And Dam | Jefferson | 77,000 | 46 | Navigation | 1968 |
| 25 | Felsenthal Lock And Dam | Union | 76,700 | 105 | Navigation | 1978 |
| 26 | Arthur V. Ormond Lock And Dam | Conway | 70,400 | 57 | Navigation | 1969 |
| 27 | Col. Charles D. Maynard Lock And Dam | Jefferson | 68,500 | 61 | Navigation | 1968 |
| 28 | Lake Columbia Dam | Columbia | 66,063 | 40 | Water Supply | 1986 |
| 29 | Lake Winona Dam | Saline | 63,264 | 115 | Water Supply | 1938 |
| 30 | David D. Terry Lock And Dam | Pulaski | 59,600 | 51 | Navigation | 1968 |
| 31 | James W. Trimble Lock And Dam | Sebastian | 59,100 | 51 | Navigation | 1969 |
| 32 | Remmel | Hot Spring | 57,260 | 75 | Hydroelectric | 1925 |
| 33 | Joe Hardin Lock And Dam | Jefferson | 50,400 | 45 | Navigation | 1968 |
| 34 | Lake Chicot Dam North | Chicot | 45,080 | 22 | Recreation | 1942 |
| 35 | Lee Creek | Crawford | 43,000 | 48 | Water Supply | 1992 |
| 36 | Poteau River Wid Site 15 | Scott | 41,058 | 77 | Recreation | 1971 |
| 37 | Lake Conway Dam | Faulkner | 40,200 | 16 | Water Supply | 1950 |
| 38 | Lock And Dam No 6 | Union | 37,700 | 26 | Navigation | 1913 |
| 39 | Toad Suck Ferry Lock And Dam | Faulkner | 37,300 | 58 | Navigation | 1969 |
| 40 | Lake Monticello Dam | Drew | 35,804 | 89 | Fish and Wildlife Pond | 1993 |
| 41 | Ditch Bayou Station-lake Chicot | Chicot | 34,000 | 12 | Flood Risk Reduction | 1980 |
| 42 | Balboa Lake Dam | Garland | 33,937 | 49 | Recreation | 1986 |
| 43 | Norton Dam | White | 31,014 | 21 | Fish and Wildlife Pond | 2003 |
| 44 | Lake Poinsett Dam | Poinsett | 29,500 | 48 | Recreation | 1967 |
| 45 | Upper Petit Jean Wid Site 9 | Logan | 29,200 | 84 | Water Supply | 1978 |
| 46 | Peckerwood Lake Dam | Prairie | 28,000 | 8 | Irrigation | 1942 |
| 47 | Des Arc Bayou Wid Site 3 | White | 25,425 | 128 | Recreation | 1979 |
| 48 | Lower White Oak Dam | Ouachita | 24,675 | 30 | Recreation | 1959 |
| 49 | Little Flint Creek Dam | Benton | 24,400 | 115 | Water Supply | 1977 |
| 50 | Brewer Lake | Conway | 23,500 | 83 | Water Supply | 1983 |