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 dam has 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 assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 2005 |
| Rankins Brothers Dam | Significant | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1976 |
| Harsha Dam | Significant | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Newton Koa Campground Dam | Significant | Poor | 20 | Recreation | |
| Hunter Dam | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| Jasper County Roadgrade Dam 20-81-20 | Low | Not assessed | 39 | Grade Stabilization | 2002 |
| Jasper County Roadgrade Dam 15-81-20 | Low | Not assessed | 38 | Grade Stabilization | 2005 |
| Vander Zyl Dam | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Iowa Noname89 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Keenen Dam | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Rodgers Dam | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Oakland Acres Dam | Low | Not assessed | 34 | Recreation | 1972 |
| Owens Dam | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Mc Whirter Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| De Bruin Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Iowa Noname24 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Triple B Dam 2 | Low | Not assessed | 32 | Fish and Wildlife Pond | 1997 |
| Klopping Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Trotter Dam | Low | Not assessed | 31 | Recreation | 1971 |
| Axtell Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Montie L Hammond Estate Dam | Low | Not assessed | 31 | Grade Stabilization | 2014 |
| Gannon Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Meisner Dam | Low | Not assessed | 30 | Recreation | 1968 |
| Wickenkamp Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Snook Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Triple B Dam 1 | Low | Not assessed | 30 | Fish and Wildlife Pond | 1997 |
| Vanderwerff Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Terlouw Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Gannon Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Kolls Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Jasper County Dam 26-80-17 | Low | Not assessed | 29 | Recreation | 1997 |
| Depenning Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Sage Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Jasper County Roadgrade Dam 35-81-17 | Low | Not assessed | 28 | Other | 2001 |
| Gannon Dam | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Hanke Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Bagnall Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Kimberly Dam | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Vander Molen Dam | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1980 |
| Mariposa Lake Dam | Low | Fair | 25 | Recreation | 1952 |
| Jansen Dam | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 2006 |
| Rozendaal Dam | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Clarks Lake Dam | Low | Not assessed | 23 | Recreation | 1962 |
| Terlouw/van Wyk Dam | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1978 |
| Mason Dam | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1963 |
| Van Zante Dam | Low | Not assessed | 21 | Fire Protection, Stock, Or Small Fish Pond | 2006 |
| Oakland Acres Dam | Low | Not assessed | 21 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Gannon Dam | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Iowa Noname90 | Low | Not assessed | 14 | Recreation | 1979 |
| Lynnville Dam | Low | Not assessed | 12 | Recreation | 1918 |