Dams in Jasper County, Iowa
51Total Dams
0High Hazard
5Significant
Dam Safety in Jasper County, Iowa
Jasper County has 51 dams tracked in the National Inventory of Dams. Another 5 carry a significant hazard classification. Currently, 1 dams have a condition assessment of poor or unsatisfactory.
The average dam in Jasper County is 49 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Hunter Dam at 40 ft.
Explore more: Oldest dams in Iowa · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Rock Creek Dam | Significant | Fair | 33 | Recreation | |
| Johnston Dam | Significant | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 2005 |
| Rankins Brothers Dam | Significant | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1976 |
| Harsha Dam | Significant | Not Rated | 28 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Newton Koa Campground Dam | Significant | Poor | 20 | Recreation | |
| Hunter Dam | Low | Not Rated | 40 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| Jasper County Roadgrade Dam 20-81-20 | Low | Not Rated | 39 | Grade Stabilization | 2002 |
| Jasper County Roadgrade Dam 15-81-20 | Low | Not Rated | 38 | Grade Stabilization | 2005 |
| Vander Zyl Dam | Low | Not Rated | 37 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Iowa Noname89 | Low | Not Rated | 37 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Keenen Dam | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Rodgers Dam | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Oakland Acres Dam | Low | Not Rated | 34 | Recreation | 1972 |
| Owens Dam | Low | Not Rated | 33 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Mc Whirter Dam | Low | Not Rated | 32 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| De Bruin Dam | Low | Not Rated | 32 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Iowa Noname24 | Low | Not Rated | 32 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Triple B Dam 2 | Low | Not Rated | 32 | Fish and Wildlife Pond | 1997 |
| Klopping Dam | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Trotter Dam | Low | Not Rated | 31 | Recreation | 1971 |
| Axtell Dam | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Montie L Hammond Estate Dam | Low | Not Rated | 31 | Grade Stabilization | 2014 |
| Gannon Dam | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Meisner Dam | Low | Not Rated | 30 | Recreation | 1968 |
| Wickenkamp Dam | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Snook Dam | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Triple B Dam 1 | Low | Not Rated | 30 | Fish and Wildlife Pond | 1997 |
| Vanderwerff Dam | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Terlouw Dam | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Gannon Dam | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Kolls Dam | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Jasper County Dam 26-80-17 | Low | Not Rated | 29 | Recreation | 1997 |
| Depenning Dam | Low | Not Rated | 28 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Sage Dam | Low | Not Rated | 28 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Jasper County Roadgrade Dam 35-81-17 | Low | Not Rated | 28 | Other | 2001 |
| Gannon Dam | Low | Not Rated | 27 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Hanke Dam | Low | Not Rated | 26 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Bagnall Dam | Low | Not Rated | 26 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Kimberly Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Vander Molen Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Mariposa Lake Dam | Low | Fair | 25 | Recreation | 1952 |
| Jansen Dam | Low | Not Rated | 24 | Fire Protection, Stock, Or Small Fish Pond | 2006 |
| Rozendaal Dam | Low | Not Rated | 23 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Clarks Lake Dam | Low | Not Rated | 23 | Recreation | 1962 |
| Terlouw/van Wyk Dam | Low | Not Rated | 23 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| Mason Dam | Low | Not Rated | 22 | Fire Protection, Stock, Or Small Fish Pond | 1963 |
| Van Zante Dam | Low | Not Rated | 21 | Fire Protection, Stock, Or Small Fish Pond | 2006 |
| Oakland Acres Dam | Low | Not Rated | 21 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Gannon Dam | Low | Not Rated | 20 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Iowa Noname90 | Low | Not Rated | 14 | Recreation | 1979 |
| Lynnville Dam | Low | Not Rated | 12 | Recreation | 1918 |