Oldest Dams in Missouri
Missouri has 4906 dams with recorded construction dates. The oldest dates to 1847 — 179 years ago. Missouri's earliest dams were built in the 19th century, an era of westward expansion, irrigation development, and early water infrastructure. Older dams require particular attention for safety, as many were built before modern engineering standards.
| # | Dam | County | Year Built | Age | Height (ft) | Hazard | Condition |
|---|---|---|---|---|---|---|---|
| 1 | Iron Mountain Lake Dam | St. Francois | 1847 | 179 yrs | 16 | High | Not Rated |
| 2 | Mine Lamotte Dam | Madison | 1870 | 156 yrs | 27 | High | Not Rated |
| 3 | Lake Harmony Dam | Madison | 1870 | 156 yrs | 21 | High | Not Rated |
| 4 | Water Works Lake Dam | Randolph | 1870 | 156 yrs | 30 | High | Not Rated |
| 5 | Hallman Lake Dam | Daviess | 1880 | 146 yrs | 20 | Low | Not Rated |
| 6 | Scotia Pond Dam | Dent | 1880 | 146 yrs | 11 | Low | Not Rated |
| 7 | Dickey Lake Dam | Henry | 1880 | 146 yrs | 25 | High | Not Rated |
| 8 | Lakeview Park Dam | St. Francois | 1880 | 146 yrs | 27 | High | Not Rated |
| 9 | Wabash Lake Dam | Boone | 1890 | 136 yrs | 15 | Low | Not Rated |
| 10 | Odd Fellows Home Lake | Clay | 1890 | 136 yrs | 23 | High | Not Rated |
| 11 | Valley Water Mills Dam | Greene | 1890 | 136 yrs | 21 | High | Not Rated |
| 12 | Willow Springs Hunting Club Dam | Howell | 1890 | 136 yrs | 20 | High | Not Rated |
| 13 | Pallas Lake Dam | Caldwell | 1894 | 132 yrs | 23 | Low | Not Rated |
| 14 | Lake Sherwood | St. Louis | 1894 | 132 yrs | 21 | High | Not Rated |
| 15 | Central Coal&coke Corp Lake Dam | Macon | 1897 | 129 yrs | 15 | Low | Not Rated |
| 16 | Burlington Lake Dam | Audrain | 1900 | 126 yrs | 28 | Low | Not Rated |
| 17 | Missouri Power And Light Dam | Audrain | 1900 | 126 yrs | 26 | High | Not Rated |
| 18 | Deramus Lake Dam/ce Report-doramus | Jackson | 1900 | 126 yrs | 33 | High | Not Rated |
| 19 | Keota Lake Dam | Macon | 1900 | 126 yrs | 15 | Low | Not Rated |
| 20 | Santa Fe Lake Dam | Macon | 1900 | 126 yrs | 30 | Low | Not Rated |
| 21 | Still Hildreth Sanitorium Dam | Macon | 1900 | 126 yrs | 30 | Low | Not Rated |
| 22 | Proctor Park Lake Dam | Moniteau | 1900 | 126 yrs | 20 | Low | Not Rated |
| 23 | Radio Springs Park | Vernon | 1900 | 126 yrs | 15 | Low | Not Rated |
| 24 | Huzzah 1 (howes Mill Lake) | Dent | 1901 | 125 yrs | 21 | High | Not Rated |
| 25 | Windsor Farrington Park Lake Dam | Pettis | 1902 | 124 yrs | 26 | High | Not Rated |
| 26 | Rothwell Lake Dam | Randolph | 1902 | 124 yrs | 29 | High | Not Rated |
| 27 | Smith Lake Dam | Pike | 1903 | 123 yrs | 31 | High | Not Rated |
| 28 | Moores Lake Dam | Boone | 1904 | 122 yrs | 30 | High | Not Rated |
| 29 | Rock Island Lake Dam | Cass | 1904 | 122 yrs | 25 | Low | Not Rated |
| 30 | Mineral Lake Dam | Franklin | 1904 | 122 yrs | 30 | Low | Not Rated |
| 31 | Argyle Lake Dam | Osage | 1904 | 122 yrs | 25 | High | Not Rated |
| 32 | Katy Lake Dam | Callaway | 1905 | 121 yrs | 45 | High | Satisfactory |
| 33 | Rock Island Lake Dam | Johnson | 1905 | 121 yrs | 25 | High | Not Rated |
| 34 | Love Lake Dam | Macon | 1905 | 121 yrs | 25 | Low | Not Rated |
| 35 | Kampen Lake Dam-sect 20 | Caldwell | 1906 | 120 yrs | 28 | Low | Not Rated |
| 36 | Mcginness Lake Dam | Clinton | 1906 | 120 yrs | 29 | High | Not Rated |
| 37 | Gregory Blvd Dam | Jackson | 1907 | 119 yrs | 29 | Low | Not Rated |
| 38 | Loch Leonard Dam | Cass | 1909 | 117 yrs | 19 | High | Not Rated |
| 39 | Henley Lake Dam | Cole | 1909 | 117 yrs | 28 | High | Not Rated |
| 40 | Fayette Old City Lake Dam | Howard | 1909 | 117 yrs | 30 | High | Not Rated |
| 41 | Santa Fe Country Club | Linn | 1910 | 116 yrs | 25 | High | Not Rated |
| 42 | Caney Basin Dam | Scott | 1910 | 116 yrs | 47 | High | Satisfactory |
| 43 | Koenig Dam | St. Charles | 1910 | 116 yrs | 32 | High | Not Rated |
| 44 | Katy Allen Lake Dam | Vernon | 1910 | 116 yrs | 25 | High | Not Rated |
| 45 | Lisle Pond Dam | Cass | 1911 | 115 yrs | 31 | Low | Not Rated |
| 46 | Lake Killarney Dam | Iron | 1911 | 115 yrs | 29 | High | Not Rated |
| 47 | Milan Lake Dam-north | Sullivan | 1911 | 115 yrs | 30 | Low | Not Rated |
| 48 | Ozark Beach | Taney | 1913 | 113 yrs | 54 | High | Satisfactory |
| 49 | Longview Dam -north | Jackson | 1914 | 112 yrs | 20 | High | Not Rated |
| 50 | Unionville Old City Lake Dam | Putnam | 1914 | 112 yrs | 28 | High | Not Rated |