Dams in Johnson County, Missouri
96Total Dams
20High Hazard
3Significant
Dam Safety in Johnson County, Missouri
Johnson County has 96 dams tracked in the National Inventory of Dams. Of these, 20 are classified as high hazard — meaning failure would probably cause loss of human life. Another 3 carry a significant hazard classification.
The average dam in Johnson County is 61 years old. The most common purpose is flood risk reduction. The tallest dam is Rock Lake Village Dam at 66 ft.
Explore more: Oldest dams in Missouri · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Rock Lake Village Dam | High | Satisfactory | 66 | 2006 | |
| Holden New City Reservoir | High | Satisfactory | 58 | Recreation | 1980 |
| Sexton Lake Dam | High | Satisfactory | 48 | Irrigation | 1968 |
| Kranz Lake Dam | High | Not Rated | 33 | Recreation | 1972 |
| South Fork Blackwater River Dam A- 1 | High | Not Rated | 31 | Flood Risk Reduction | 1964 |
| E.br So Fk Blackwater B-19 | High | Not Rated | 29 | Flood Risk Reduction | 1956 |
| Tackett Lake Dam | High | Not Rated | 27 | Grade Stabilization | 1950 |
| Roberts, Hunter Lake Dam | High | Not Rated | 27 | Flood Risk Reduction | 1972 |
| E.br So Fk Blackwater E-24 | High | Not Rated | 26 | Flood Risk Reduction | 1954 |
| Kesterson Dam | High | Not Rated | 25 | Flood Risk Reduction | 1949 |
| Mccannon Lake Dam | High | Not Rated | 25 | Irrigation | |
| Edmunds Lake Dam | High | Not Rated | 25 | Debris Control | 1976 |
| Rock Island Lake Dam | High | Not Rated | 25 | Recreation | 1905 |
| Holden Reservoir Dam West | High | Not Rated | 25 | Recreation | 1929 |
| Timber Lake Meadows Dam | High | Not Rated | 25 | Recreation | 1963 |
| Lenny Lake Dam | High | Not Rated | 20 | Irrigation | 1960 |
| Skyhaven Lake Dam | High | Not Rated | 20 | Recreation | 1955 |
| South Lake Dam | High | Not Rated | 20 | Irrigation | 1977 |
| Foffel Lake Dam | High | Not Rated | 20 | Recreation | 1963 |
| Pertle Springs Dam | High | Not Rated | 20 | Recreation | 1968 |
| South Fork Blackwater F-1 | Significant | Satisfactory | 48 | Flood Risk Reduction | 1980 |
| Hazel Hill Community Dam | Significant | Satisfactory | 38 | Recreation | 1989 |
| E. Br. S. Fk. Blackwater Wtrshed F-28 | Significant | Not Rated | 26 | Flood Risk Reduction | 1956 |
| Gann Lake Dam | Low | Satisfactory | 43 | Recreation | 1972 |
| Knapp Dam | Low | Satisfactory | 40 | Water Supply | |
| South Fork Blackwater River Dam Lt-67 | Low | Not Rated | 36 | Grade Stabilization | 1984 |
| South Fork Blackwater River Dam E- 7 | Low | Not Rated | 36 | Flood Risk Reduction | 1979 |
| Radmacher Dam Lower | Low | Not Rated | 35 | ||
| South Fork Blackwater River Dam E- 25a | Low | Not Rated | 33 | Grade Stabilization | 1982 |
| E.br So Fk Blackwater B-11 | Low | Not Rated | 33 | Flood Risk Reduction | 1958 |
| South Fork Blackwater River Dam F- 2 | Low | Not Rated | 32 | Flood Risk Reduction | 1965 |
| E.br So Fk Blackwater F-33 | Low | Not Rated | 32 | Flood Risk Reduction | 1958 |
| E.br So Fk Blackwater E-26 | Low | Not Rated | 32 | Flood Risk Reduction | 1956 |
| South Fork Blackwater River Dam F- 3 | Low | Not Rated | 31 | Flood Risk Reduction | 1979 |
| E.br So Fk Blackwater A-5 | Low | Not Rated | 31 | Flood Risk Reduction | 1956 |
| South Fork Blackwater River Dam A-20 | Low | Not Rated | 31 | Grade Stabilization | 1964 |
| Lake Pajaska Dam | Low | Not Rated | 30 | Fish and Wildlife Pond | 1972 |
| Teefly Lake Dam | Low | Not Rated | 30 | Recreation | |
| Lake Paradise Dam | Low | Not Rated | 30 | Recreation | 1950 |
| Wilson Lake Dam | Low | Not Rated | 30 | Recreation | 1969 |
| Hickory Hills Lake Dam | Low | Not Rated | 30 | Recreation | 1969 |
| Ken-mar Acres Lake Dam | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| South Fork Blackwater River Dam E-29 | Low | Not Rated | 30 | Flood Risk Reduction | 1979 |
| E.br So Fk Blackwater C-13 | Low | Not Rated | 30 | Flood Risk Reduction | 1954 |
| Campbell Lake Dam | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1976 |
| Warrensburg Country Club Lake Dam | Low | Not Rated | 29 | Fish and Wildlife Pond | 1977 |
| E.br So Fk Blackwater F-28 | Low | Not Rated | 28 | Flood Risk Reduction | 1954 |
| E.br So Fk Blackwater D-21 | Low | Not Rated | 28 | Flood Risk Reduction | 1956 |
| E.br So Fk Blackwater D-20 | Low | Not Rated | 28 | Flood Risk Reduction | 1958 |
| E.br So Fk Blackwater C-16 | Low | Not Rated | 28 | Flood Risk Reduction | 1954 |
| South Fork Blackwater River Dam A-21 | Low | Not Rated | 28 | Grade Stabilization | 1964 |
| E.br So Fk Blackwater C-15 | Low | Not Rated | 28 | Flood Risk Reduction | 1958 |
| Kallstrom Lake Dam | Low | Not Rated | 27 | Fish and Wildlife Pond | 1971 |
| Easterwood Lake Dam | Low | Not Rated | 27 | Debris Control | 1977 |
| So Fork Blackwater Wtrshd Site E-29 | Low | Not Rated | 27 | Flood Risk Reduction | 1980 |
| E.br So Fk Blackwater G-34 | Low | Not Rated | 27 | Flood Risk Reduction | 1958 |
| South Fork Blackwater River Dam Lt-14 | Low | Not Rated | 27 | Fish and Wildlife Pond | 1981 |
| South Fork Blackwater River Dam A-26 | Low | Not Rated | 27 | Grade Stabilization | 1966 |
| South Fork Blackwater River Dam A- 3 | Low | Not Rated | 27 | Flood Risk Reduction | 1966 |
| Glazebrooks Lake Dam | Low | Not Rated | 26 | Flood Risk Reduction | 1979 |
| E.br So Fk Blackwater C-17 | Low | Not Rated | 26 | Flood Risk Reduction | 1958 |
| South Fork Blackwater River Dam A-27 | Low | Not Rated | 26 | Grade Stabilization | 1965 |
| South Fork Blackwater River Dam A- 2 | Low | Not Rated | 26 | Flood Risk Reduction | 1966 |
| Yukon Lake Dam | Low | Not Rated | 25 | Recreation | |
| Downing Lake Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | |
| Reynolds Lake Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Maxson Lake Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | 1951 |
| Jaeger Lake Dam | Low | Not Rated | 25 | Debris Control | 1960 |
| Heiman Lake Dam | Low | Not Rated | 25 | Recreation | |
| Wilson Lake Dam | Low | Not Rated | 25 | Recreation | 1960 |
| Hamilton Lake Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Futurama Lake Dam | Low | Not Rated | 25 | Recreation | |
| Lake Buteo Dam | Low | Not Rated | 25 | Recreation | 1927 |
| Netsch Lake Dam | Low | Not Rated | 25 | Irrigation | 1964 |
| Hall Lake Dam | Low | Not Rated | 25 | Recreation | |
| Shumate Lake Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | |
| Eldridge Lake Dam | Low | Not Rated | 25 | Debris Control | 1975 |
| Stropes Lake Dam | Low | Not Rated | 25 | Recreation | |
| Clear Fork Lake Dam | Low | Not Rated | 25 | Recreation | 1936 |
| E. Br. S. Fk. Blackwater Wtrshed G-34 | Low | Not Rated | 25 | Flood Risk Reduction | 1957 |
| Lions Lake Dam | Low | Not Rated | 24 | Fish and Wildlife Pond | 1963 |
| South Fork Blackwater River Dam F-21 | Low | Not Rated | 24 | Grade Stabilization | 1965 |
| E.br So Fk Blackwater D-22 | Low | Not Rated | 24 | Flood Risk Reduction | 1954 |
| E.br So Fk Blackwater E-27 | Low | Not Rated | 24 | Flood Risk Reduction | 1958 |
| South Fork Blackwater River Dam E-26 | Low | Not Rated | 24 | Grade Stabilization | 1965 |
| South Fork Blackwater River Dam A-24 | Low | Not Rated | 22 | Grade Stabilization | 1964 |
| South Fork Blackwater River Dam E-24 | Low | Not Rated | 21 | Grade Stabilization | 1964 |
| Hartman Lake Dam | Low | Not Rated | 20 | Water Supply | |
| Foster Lake Dam | Low | Not Rated | 20 | Recreation | |
| Holden Reservoir Dam East | Low | Not Rated | 20 | Recreation | 1950 |
| Teller Lake Dam | Low | Not Rated | 20 | Recreation | 1962 |
| Shirley Lake Dam | Low | Not Rated | 19 | Irrigation | 1977 |
| Maupin Lake Dam | Low | Not Rated | 19 | Debris Control | 1976 |
| South Fork Blackwater River Dam E-21 | Low | Not Rated | 19 | Grade Stabilization | 1965 |
| Young Lake Dam | Low | Not Rated | 18 | Grade Stabilization | 1975 |
| Mononame425 | Low | Not Rated | 15 | Other | 1960 |