Dams in Harrison County, Iowa
100Total Dams
1High Hazard
1Significant
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Mill Picayune Watershed Site B-3 | High | Satisfactory | 38 | Flood Risk Reduction | 1962 |
| Harrison County Roadgrade Dam 18-79-43 | Significant | Fair | 66 | Other | 1959 |
| Boustead/coenen/pryor Dam | Low | Not Rated | 62 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Mill Picayune Watershed Site M-2-1 | Low | Not Rated | 61 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Rager Dam | Low | Not Rated | 58 | Flood Risk Reduction | 2011 |
| Weatherly/haight Dam | Low | Not Rated | 57 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| South Magnolia Watershed Site 1 | Low | Not Rated | 57 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Schwertley Dam | Low | Not Rated | 55 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Olsen Dam | Low | Not Rated | 52 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Mosquito Of Harrison Watershed Site 5-1 | Low | Not Rated | 52 | Fire Protection, Stock, Or Small Fish Pond | 1985 |
| Mill Picayune Watershed Site P-39-1 | Low | Not Rated | 51 | Fire Protection, Stock, Or Small Fish Pond | 1989 |
| Mill Picayune Watershed Site S-10-1 | Low | Not Rated | 51 | Fire Protection, Stock, Or Small Fish Pond | 1962 |
| Mosquito Of Harrison Watershed Site 7-1 | Low | Not Rated | 50 | Fire Protection, Stock, Or Small Fish Pond | 1993 |
| Kasparbauer | Low | Not Rated | 49 | Flood Risk Reduction | 2012 |
| Johnson (oscar) Dam | Low | Not Rated | 49 | Flood Risk Reduction | 2011 |
| Mill Picayune Watershed Site S-10-2 | Low | Not Rated | 49 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Schaben Dam | Low | Not Rated | 48 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Mill Picayune Watershed Site M-3-1 | Low | Not Rated | 48 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Mill Picayune Watershed Site S-8-2 | Low | Not Rated | 48 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| Spencer Dam | Low | Not Rated | 47 | Fire Protection, Stock, Or Small Fish Pond | 2007 |
| Mosquito Creek Watershed Site 6-5 | Low | Not Rated | 47 | Fire Protection, Stock, Or Small Fish Pond | 1979 |
| Harmony Creek Watershed Site 4 | Low | Not Rated | 46 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Mosquito Creek Watershed Site 6-1 | Low | Not Rated | 46 | Fire Protection, Stock, Or Small Fish Pond | 1979 |
| Harmony Creek Watershed Site 6 | Low | Not Rated | 45 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Mosquito Of Harrison Watershed Site 5-4 | Low | Not Rated | 45 | Fire Protection, Stock, Or Small Fish Pond | 1988 |
| Mill Picayune Watershed Site P-33-1 | Low | Not Rated | 45 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Mill Picayune Watershed Site S-10-7 | Low | Not Rated | 45 | Fire Protection, Stock, Or Small Fish Pond | 1962 |
| Mill Picayune Watershed Site M-2-2 | Low | Not Rated | 45 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| South Magnolia Watershed Site Z | Low | Not Rated | 44 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Ramsey Dam | Low | Not Rated | 43 | Grade Stabilization | 2000 |
| Harmony Creek Watershed Site 1 | Low | Not Rated | 43 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Mosquito Of Harrison Watershed Site 5-2 | Low | Not Rated | 43 | Fire Protection, Stock, Or Small Fish Pond | 1988 |
| Mc Intosh Dam | Low | Not Rated | 42 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Burkhart Dam | Low | Not Rated | 42 | Flood Risk Reduction | 2010 |
| Harper Century Farm Dam | Low | Not Rated | 42 | Flood Risk Reduction | 2011 |
| Mill Picayune Watershed Site N-3 | Low | Not Rated | 42 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Mill Picayune Watershed Site D-3 | Low | Not Rated | 42 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Brummer Dam | Low | Not Rated | 41 | Fire Protection, Stock, Or Small Fish Pond | 1945 |
| Collier Dam | Low | Not Rated | 41 | Fire Protection, Stock, Or Small Fish Pond | 1974 |
| Cleveland Dam | Low | Not Rated | 41 | Flood Risk Reduction | 2011 |
| Winner Dam | Low | Not Rated | 41 | Flood Risk Reduction | 2011 |
| Koski Dam | Low | Not Rated | 41 | Flood Risk Reduction | 2011 |
| Harmony Creek Watershed Site 7 | Low | Not Rated | 40 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Mosquito Of Harrison Watershed Site 5-3 | Low | Not Rated | 40 | Fire Protection, Stock, Or Small Fish Pond | 1988 |
| Mosquito Of Harrison Watershed Site 7-4 | Low | Not Rated | 40 | Fire Protection, Stock, Or Small Fish Pond | 1993 |
| Mosquito Creek Watershed Site 6-2 | Low | Not Rated | 40 | Fire Protection, Stock, Or Small Fish Pond | 1979 |
| Mill Picayune Watershed Site N-13-2 | Low | Not Rated | 40 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Straight Dam | Low | Not Rated | 39 | Flood Risk Reduction | 2011 |
| Roy/kemmish Dam | Low | Not Rated | 39 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Mill Picayune Watershed Site M-2-3 | Low | Not Rated | 39 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Nowak Dam | Low | Not Rated | 38 | Grade Stabilization | 2001 |
| Mosquito Creek Watershed Site 11-2-2 | Low | Not Rated | 38 | Fire Protection, Stock, Or Small Fish Pond | 1979 |
| Iowa Noname18 | Low | Not Rated | 37 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Kline/peterson Dam | Low | Not Rated | 37 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| South Magnolia Watershed Site 5 | Low | Not Rated | 37 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Mill Picayune Watershed Site M-6-1 | Low | Not Rated | 37 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| Elias Dam | Low | Not Rated | 36 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Cohrs Dam | Low | Not Rated | 36 | Flood Risk Reduction | 2011 |
| Mosquito Creek Watershed Site 13-1 | Low | Not Rated | 36 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Mill Picayune Watershed Site I-1 | Low | Not Rated | 35 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| Buss Dam | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| Greenwood Dam | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| Smith (steve) Dam | Low | Not Rated | 34 | Flood Risk Reduction | 2011 |
| South Magnolia Watershed Site 4 | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Mill Picayune Watershed Site G-1 | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1986 |
| Mill Picayune Watershed Site S-8-3 | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Mill Picayune Watershed Site S-32-1 | Low | Not Rated | 34 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| Bloom Dam | Low | Not Rated | 33 | Fire Protection, Stock, Or Small Fish Pond | 2006 |
| Mill Picayune Watershed Site E-1 | Low | Not Rated | 33 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Mosquito Of Harrison Wtrshd Site11-1-3a | Low | Not Rated | 32 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| Mill Picayune Watershed Site S-1 | Low | Not Rated | 32 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Mc Clendon Dam | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 2000 |
| Heistand/erlewine Dam | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Iowa Noname70 | Low | Not Rated | 31 | Debris Control | 1976 |
| Willow Lake Dam | Low | Not Rated | 31 | Debris Control | 1976 |
| Mosquito Of Harrison B | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 1987 |
| Mill Picayune Watershed Site A-2 | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Mill Picayune Watershed Site N-13-1 | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Mill Picayune Watershed Site S-36-1 | Low | Not Rated | 31 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| Ganzhorn Dam | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Grote Dam | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1974 |
| Buss Dam | Low | Not Rated | 30 | Flood Risk Reduction | 2011 |
| Iowa Noname21 | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Mill Picayune Watershed Site S-8-1 | Low | Not Rated | 30 | Fire Protection, Stock, Or Small Fish Pond | 1985 |
| Grap Dam | Low | Not Rated | 29 | Flood Risk Reduction | 2011 |
| Cunard Dam | Low | Not Rated | 29 | Flood Risk Reduction | 2011 |
| Mill Picayune Watershed Site S-4 | Low | Not Rated | 29 | Other | 1991 |
| Mosquito Of Harrison Watershed Site 7-2 | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| Mill Picayune Watershed Site P-41-1 | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| Mill Picayune Watershed Site P-4-1 | Low | Not Rated | 29 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| South Magnolia Watershed Site 3 | Low | Not Rated | 28 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Andersen Dam | Low | Not Rated | 27 | Grade Stabilization | 2001 |
| Erickson Dam | Low | Not Rated | 27 | Flood Risk Reduction | 2003 |
| Mosquito Of Harrison Watershed Site C-1 | Low | Not Rated | 27 | Fire Protection, Stock, Or Small Fish Pond | 1990 |
| Stephany Dam | Low | Not Rated | 26 | Fire Protection, Stock, Or Small Fish Pond | 1945 |
| Heistand/swain Dam | Low | Not Rated | 26 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Gochenour Dam | Low | Not Rated | 25 | Fire Protection, Stock, Or Small Fish Pond | 2003 |
| Harmony Creek Watershed Site 5 | Low | Not Rated | 23 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Little Sioux River Bedgrade Control | Low | Not Rated | 8 | Grade Stabilization | 1985 |
| Little Sioux Dam | Low | Not Rated | 7 | Other | 1963 |