311Total Dams
11High Hazard
22Significant
Dam Safety in Woodbury County, Iowa
Woodbury County has 311 dams tracked in the National Inventory of Dams. Of these, 11 are classified as high hazard — meaning failure would probably cause loss of human life. Another 22 carry a significant hazard classification. Currently, 4 dams have a condition assessment of poor or unsatisfactory.
The average dam in Woodbury County is 55 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Bacon Creek Watershed Site A-3 at 69 ft.
Explore more: Oldest dams in Iowa · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Bacon Creek Watershed Site A-3 | High | Satisfactory | 69 | Flood Risk Reduction | 1978 |
| Smokey Hollow Subwatershed Site 4 | High | Poor | 64 | Flood Risk Reduction | 1985 |
| Smokey Hollow Subwatershed Site 1 | High | Satisfactory | 59 | Flood Risk Reduction | 1986 |
| Smokey Hollow Subwatershed Site 3 | High | Satisfactory | 58 | Flood Risk Reduction | 1986 |
| Bacon Creek Watershed Site A-2-4 | High | Satisfactory | 51 | Flood Risk Reduction | 1979 |
| Bacon Creek Watershed Site A-3-1 | High | Satisfactory | 50 | Flood Risk Reduction | 1978 |
| Smokey Hollow Subwatershed Site 2 | High | Fair | 49 | Flood Risk Reduction | 1986 |
| Bacon Creek Watershed Site C-1 | High | Satisfactory | 41 | Flood Risk Reduction | 1976 |
| Bacon Creek Watershed Site A-1-1 | High | Fair | 36 | Flood Risk Reduction | 1978 |
| Glen Ellen Subwatershed Site 3-2 | High | Fair | 32 | Fire Protection, Stock, Or Small Fish Pond | 1963 |
| Glen Ellen Subwatershed Site 3-1 | High | Satisfactory | 29 | Fire Protection, Stock, Or Small Fish Pond | 1963 |
| Bacon Creek Watershed Site H-2-1 | Significant | Satisfactory | 59 | Flood Risk Reduction | 1981 |
| Bacon Creek Watershed Site A-2-1 | Significant | Poor | 55 | Flood Risk Reduction | 1978 |
| Bacon Creek Watershed Site H-3-1 | Significant | Satisfactory | 55 | Flood Risk Reduction | 1984 |
| Bacon Creek Watershed Site H-1 | Significant | Satisfactory | 54 | Flood Risk Reduction | 1984 |
| Bacon Creek Watershed Site J-3 | Significant | Satisfactory | 53 | Flood Risk Reduction | 1989 |
| Bacon Creek Watershed Site A-2-2 | Significant | Fair | 51 | Flood Risk Reduction | 1978 |
| Bacon Creek Watershed Site H-2-2 | Significant | Satisfactory | 51 | Flood Risk Reduction | 1981 |
| Bacon Creek Watershed Site A-2-3 | Significant | Poor | 47 | Flood Risk Reduction | 1978 |
| Bacon Creek Watershed Site J-1 | Significant | Satisfactory | 46 | Flood Risk Reduction | 1984 |
| Bacon Creek Watershed Site H-3-2 | Significant | Satisfactory | 46 | Flood Risk Reduction | 1984 |
| Woodbury County Roadgrade Dam 36-86-42 | Significant | Satisfactory | 42 | Other | 1990 |
| Little Whiskey Subwatershed Site M-2 | Significant | Satisfactory | 42 | Fire Protection, Stock, Or Small Fish Pond | 1990 |
| Bacon Creek Watershed Site H-1-2 | Significant | Not assessed | 40 | Flood Risk Reduction | 1981 |
| Bacon Creek Watershed Site H-1-1 | Significant | Fair | 40 | Flood Risk Reduction | 1981 |
| Bacon Creek Watershed Site H-1-3 | Significant | Satisfactory | 40 | Fire Protection, Stock, Or Small Fish Pond | 1981 |
| Big Whiskey 1 Subwatershed Site 3-1 | Significant | Fair | 38 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Bacon Creek Watershed Site A-2-6 | Significant | Not assessed | 35 | Flood Risk Reduction | 1978 |
| Smith Dam | Significant | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Iowa Noname60 | Significant | Not assessed | 29 | Recreation | 1964 |
| Anthon Subwatershed 1-2261 | Significant | Fair | 28 | Other | 1954 |
| Glen Ellen Subwatershed Site 2-2 | Significant | Fair | 25 | Fire Protection, Stock, Or Small Fish Pond | 1963 |
| Bacon Creek Watershed Site J-5 | Significant | Poor | 23 | Flood Risk Reduction | 1984 |
| Bacon Creek Watershed Site A-2 | Low | Not assessed | 64 | Flood Risk Reduction | 1978 |
| Bacon Creek Watershed Site A-1 | Low | Not assessed | 58 | Flood Risk Reduction | 1978 |
| Little Egypt Subwatershed 4-2772 | Low | Not assessed | 58 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Lum Hollow Subwatershed M-3847 | Low | Not assessed | 55 | Other | 1959 |
| West Fork #3 Subwtrshd Sta 37+14 #9 | Low | Not assessed | 55 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Davis Subwatershed 7-3615 | Low | Not assessed | 54 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Parnell Creek Subwatershed Site 8-1 | Low | Not assessed | 54 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Davis Subwatershed 19-2044 | Low | Not assessed | 52 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Sunrise Subwatershed Site 6a-1 | Low | Not assessed | 52 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Windy Hill Subwatershed Site 5-3 | Low | Not assessed | 52 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Walling Subwatershed Sta 57+84 #1b | Low | Not assessed | 51 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Neustrom Subwatershed Site 9-3 | Low | Not assessed | 50 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Bacon Creek Watershed Site J-2 | Low | Not assessed | 50 | Flood Risk Reduction | 1988 |
| Walling Subwatershed Sta 55+40 #1 | Low | Not assessed | 50 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Parnell Creek Subwatershed Site 8-2 | Low | Not assessed | 49 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Neustrom Subwatershed Site M-4 | Low | Not assessed | 48 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Walling Subwatershed Sta 42+05 #4 | Low | Not assessed | 48 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Walling Subwatershed Sta 77+50 #1 | Low | Not assessed | 48 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Davis Subwatershed M-3398 | Low | Not assessed | 47 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Lum Hollow Subwatershed 9-3544 | Low | Not assessed | 47 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Neustrom Subwatershed Site 13-1 | Low | Not assessed | 47 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Big Coon Subwatershed Site 2-10a | Low | Not assessed | 47 | Fire Protection, Stock, Or Small Fish Pond | 1999 |
| Sunrise Subwatershed Site 6-1 | Low | Not assessed | 47 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Windy Hill Subwatershed Site 5b-1 | Low | Not assessed | 47 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Camp Creek Subwatershed Site M-2a | Low | Not assessed | 46 | Fire Protection, Stock, Or Small Fish Pond | 1989 |
| Bacon Creek Watershed Site L-3 | Low | Not assessed | 46 | Flood Risk Reduction | 1976 |
| Little Egypt Subwatershed 9-2670 | Low | Not assessed | 46 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Heisler Creek Subwtrshd Sta 39+84 #3 | Low | Not assessed | 46 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Weis Dam | Low | Not assessed | 45 | Fire Protection, Stock, Or Small Fish Pond | 1976 |
| Willow Creek Subwatershed Site M-1 | Low | Not assessed | 45 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Big Coon Subwatershed Site 2-9a | Low | Not assessed | 45 | Fire Protection, Stock, Or Small Fish Pond | 1999 |
| Dutch Hollow Subwatershed Site 1-8 | Low | Not assessed | 45 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Washburn Subwatershed Sta 35+40 Gul.1 | Low | Not assessed | 45 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| West Fork #3 Subwtrshd Sta 8+15 #6 | Low | Not assessed | 45 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Camp Creek Subwatershed Site M-4 | Low | Not assessed | 44 | Fire Protection, Stock, Or Small Fish Pond | 1989 |
| Lum Hollow Subwatershed M-22453 | Low | Not assessed | 44 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Woodbury County Roadgrade Dam 18-87-44 | Low | Not assessed | 44 | Other | 1988 |
| Mc Donald Subwatershed 4-2557 | Low | Not assessed | 44 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Parnell Creek Subwatershed Site 9-1 | Low | Not assessed | 44 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Weber Creek Subwatershed Site M-11532 | Low | Not assessed | 44 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Little Egypt Subwatershed 5-3052 | Low | Not assessed | 44 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Jett Subwatershed Site M-5 | Low | Not assessed | 43 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Lum Hollow Subwatershed 6-5495 | Low | Not assessed | 43 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Parnell Creek Subwatershed Site 15-1 | Low | Not assessed | 43 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Swanger Dam | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1970 |
| Dutch Hollow Subwatershed Site M-3 | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| Weber Creek Subwatershed Site 2-3225 | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Dickman Subwatershed Site M-2 | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Dutch Hollow Subwatershed Site 4-1 | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| Zellmer Subwatershed Site J-1a | Low | Not assessed | 42 | Flood Risk Reduction | 2002 |
| Parnell Creek Subwatershed Site M-3 | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Windy Hill Subwatershed Site 3-2 | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Big Coon Subwatershed Site D-2-1 | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1999 |
| Zellmer Subwtrshd Sta 31+70 #m | Low | Not assessed | 42 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Jett Subwatershed Site M-4 | Low | Not assessed | 41 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Cord Subwatershed M-7234 | Low | Not assessed | 41 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Dutch Hollow Subwatershed Site 1a-1 | Low | Not assessed | 41 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| Big Coon Subwatershed Site 3-3 | Low | Not assessed | 41 | Fire Protection, Stock, Or Small Fish Pond | 1999 |
| West Wolf Creek Subwatershed Site 35 | Low | Not assessed | 41 | Fire Protection, Stock, Or Small Fish Pond | 1997 |
| Weber Creek Subwatershed Site 5-4460 | Low | Not assessed | 41 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Foix Dam | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| Lum Hollow Subwatershed 9-5186 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Little Beaver Subwatershed M-16730 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Neustrom Subwatershed Site 19-3 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Camp Creek Subwatershed Site 1-2 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1992 |
| West Wolf Creek Subwatershed Site 13 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1990 |
| College Corner Subwatershed Site 4-5 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Dutch Hollow Subwatershed Site 1-2 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1989 |
| Heisler Subwatershed Site 2-1 | Low | Not assessed | 40 | Flood Risk Reduction | 2004 |
| Wolf Creek Subwatershed Site 5a-1 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Walling Subwatershed Sta 99+70 #1 | Low | Not assessed | 40 | Other | 1953 |
| Weber Creek Subwatershed Site M-17052 | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Heisler Creek Subwtrshd Sta 29+80 #3d | Low | Not assessed | 40 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Clark Dam | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Neustrom Subwatershed Site 17-2 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Neustrom Subwatershed Site M-5 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Lum Hollow Subwatershed M-6199 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Neustrom Subwatershed Site 13-2 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Willow Creek Subwatershed Site 3-1 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| MUD Creek Subwatershed Site 13b-1 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Bacon Creek Watershed Site K-1 | Low | Not assessed | 39 | Flood Risk Reduction | 1976 |
| Zellmer Subwtrshd #m 106+26 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Windy Hill Subwatershed Site 2-1 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Wolf Creek Subwatershed Site 4-4 | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| Little Egypt Subwatershed Sta 125+21 #m | Low | Not assessed | 39 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Brauninger Dam | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| Larson Dam | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1998 |
| Maxwell Dam | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Uhl Dam | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Thomsen Dam | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Camp Creek Subwatershed Site M-6a | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1998 |
| Lum Hollow Subwatershed M-27785 | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Theobold Subwatershed 6975 | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1948 |
| Little Beaver Subwatershed M-10001 | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Willow Creek Subwatershed Site M-2 | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Dickman Subwatershed Site 3-1 | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Woodbury County Road Dam 8-87-44 | Low | Not assessed | 38 | Grade Stabilization | 2001 |
| Woodbury County Roadgrade Dam 30-88-43 | Low | Not assessed | 38 | Other | 1999 |
| Wenger Subwatershed Sta 16+00 #5 | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Little Egypt Subwatershed Sta 62+38 #m | Low | Not assessed | 38 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Neustrom Subwatershed Site 11-2 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Camp Creek Subwatershed Site 10-1 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1998 |
| Big Whiskey Subwatershed Site 6-2 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| MUD Creek Subwatershed Site 13-1 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| MUD Creek Subwatershed Site 14-1 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Little Whiskey Subwatershed Site M-1 | Low | Not assessed | 37 | Other | 1984 |
| Parnell Creek Subwatershed Site M-5 | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Davis Subwatershed M-7920 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Davis Subwatershed 7-1580 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Davis Subwatershed M-10843 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Little Beaver Subwatershed 5b-5000 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Lum Hollow Subwatershed M-17850 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Cord Subwatershed M-5571 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Little Beaver Subwatershed 5-8154 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Parnell Creek Subwatershed Site 5-1 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Big Coon Subwatershed Site 3a-4 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1999 |
| Wenger Subwatershed Sta 43+88 #m | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Jett Subwatershed Site 16-1 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Ralston Subwatershed Site 1-2 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1969 |
| Little Whiskey Subwatershed Site 16-2 | Low | Not assessed | 36 | Flood Risk Reduction | 2001 |
| Windy Hill Subwatershed Site 5-1 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Little Egypt Subwatershed Sta 29+82 #m | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| West Fork One Subwatershed Site 4-4300 | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| West Fork #3 Subwtrshd Sta 25+20 #9a | Low | Not assessed | 36 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Davis Subwatershed M-18560 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Lum Hollow Subwatershed 9c-3295 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| West Wolf Creek Subwatershed Site 12l | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1990 |
| Mc Donald Subwatershed Site 1 | Low | Not assessed | 35 | Recreation | 1985 |
| Dutch Hollow Subwatershed Site 1-3 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| Gothier No.2 Subwatershed M-10840 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Parnell Creek Subwatershed Site 15-2 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Wolf Creek Subwatershed Site 3-2 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Walling Subwatershed Sta 20+86 #1b | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Walling Subwatershed Sta 18+02 #5 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Weber Creek Subwatershed Site M-15543 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Little Egypt Subwatershed 5-4730 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| West Fork #3 Subwtrshd Sta 52+20 #9 | Low | Not assessed | 35 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Davis Subwatershed M-14077 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Davis Subwatershed 5-1620 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Jett Subwatershed Site M-2 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Little Beaver Subwatershed 2-15127 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Miller Subwatershed 3-a-1500 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Willow Creek Subwatershed Site 10-3 | Low | Satisfactory | 34 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Dickman Subwatershed Site M-4 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Parnell Creek Subwatershed Site 21-1 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Heisler Creek Subwtrshd Sta 46+80 #3d | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Bitter Creek Subwatershed Site E-2 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| Windy Hill Subwatershed Site 3a-1 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Windy Hill Subwatershed Site 5-4 | Low | Not assessed | 34 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Cresswell Dam | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1954 |
| Jett Subwatershed Site 2-1 | Low | Not assessed | 33 | Flood Risk Reduction | 2002 |
| Davis Subwatershed 7-6044 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Weber Creek Subwatershed Site M-5276 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Neustrom Subwatershed Site M-6 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| West Wolf Creek Subwatershed Site 26 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| College Corner Subwatershed Site 3-1 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Miller Subwatershed 3-2975 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| MUD Creek Subwatershed Site 8-1 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Dutch Hollow Subwatershed Site M-4 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| Big Coon Subwatershed Site 6h-2 | Low | Not assessed | 33 | Flood Risk Reduction | 1999 |
| Bacon Creek Watershed Site F-1 | Low | Not assessed | 33 | Flood Risk Reduction | 1981 |
| Mc Donald Subwatershed Site 5-2290 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Mc Larty-edwards Subwtrshd #9 19+77 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Parnell Creek Subwatershed Site 20-2 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Bacon Creek Watershed Site H-2 | Low | Not assessed | 33 | Flood Risk Reduction | 1984 |
| Windy Hill Subwatershed Site 2-2 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Mc Larty-edwards Subwtrshd Sta 65+93 #m | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Windy Hill Subwatershed Site 3d-2 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Mc Larty-edwards Subwtrshd Sta 20+00 #1 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Wolf Creek Subwatershed Site 3-1 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1972 |
| Arlington Subwtrshd Sta 29+60 #6 | Low | Not assessed | 33 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Iowa Noname80 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Creswell Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Woodbury County Roadgrade Dam 5-87-44 | Low | Not assessed | 32 | Other | 1991 |
| Mosier/bandy Dam | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1962 |
| Miller Subwatershed Site 4-3375 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Jett Subwatershed Site M-1 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Washburn Subwatershed Sta28+00 Gully3 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Neustrom Subwatershed Site 11-1 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Jett Subwatershed Site M-6 | Low | Not assessed | 32 | 2003 | |
| MUD Creek Subwatershed Site 6-1 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Ls Miller 4-3375 | Low | Not assessed | 32 | Grade Stabilization | 1960 |
| Sunrise Subwatershed Site 7-1 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | |
| Wenger Subwatershed #m Sta 25+50 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Walling Subwatershed Sta 23+00 #1h | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Walling Subwatershed Sta 18+50 #1j | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Walling Subwatershed Sta 78+96 #1b | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Walling Subwatershed Sta 38+00 #1b | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Weber Creek Subwatershed Site M-13551 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Wise Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Sulsberger Dam | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Lum Hollow Subwatershed 9-7697 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Lum Hollow Subwatershed M-8552 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Weber Creek Subwatershed Site 3-4287 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| West Wolf Creek Subwatershed Site 30a | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| Wolf Creek Subwatershed Site 5-2 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Parnell Creek Subwatershed Site 21-2 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Walling Subwatershed Sta 19+70 #4 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Arlington Subwtrshd Sta 27+02 #8 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Peterson Dam | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| West Wolf Creek Subwatershed Site 11 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1991 |
| MUD Creek Subwatershed Site 8-2 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Willow Creek Subwatershed Site M-3 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Wenger Subwatershed M 130+73 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Neustrom Subwatershed Site M-1 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Parnell Creek Subwatershed Site M-6 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Wolf Creek Subwatershed Site M-2 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Mc Larty-edwards Subwtrshd Sta 35+50 #1 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Zellmer Subwtrshd Sta 54+60 #b1 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| West Fork One Subwatershed Site 1-5000 | Low | Not assessed | 30 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Wahlberg Dam | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1977 |
| Weber Creek Subwatershed Site M-9000 | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| College Corner Subwatershed Site 4-3 | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Wolf Creek Subwatershed Site M-3 | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Arlington Subwatershed Sta 51+00 #6 | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| West Fork One Subwatershed Site 4-4050 | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| West Fork One Subwatershed Site 2-10110 | Low | Not assessed | 29 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Herbold Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| Tordoff Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1995 |
| Oberreuter Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1973 |
| Ludvigson Dam | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1975 |
| Cord Subwatershed M-10464 | Low | Not assessed | 28 | Other | 1957 |
| Dutch Hollow Subwatershed Site M-2 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1984 |
| West Wolf Creek Subwatershed Site 34 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1997 |
| Weber Creek Subwatershed Site 9-1900 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Anthon Subwatershed M-4001 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1954 |
| College Corner Subwatershed Site 4-2 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Wenger Subwatershed Sta 32+00 #5 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Walling Subwatershed Sta 31+73 #1 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Walling Subwatershed Sta 19+11 #1k | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Weber Creek Subwatershed Site M-18555 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Diede Dam | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1996 |
| Camp Creek Subwatershed Site M-8 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1998 |
| Little Beaver Subwatershed 2-13001 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| West Wolf Creek Subwatershed Site 44-a | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1997 |
| Weber Creek Subwatershed Site M-11136 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Lum Hollow Subwatershed 12-10865 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Lum Hollow Subwatershed 7-2982 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Mc Larty-edwards Subwtrshd #m 100+30 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Wolf Creek Subwatershed Site 5-1 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Zellmer Subwtrshd #b 22+50 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Arlington Subwtrshd Sta 62+50 #3 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Little Egypt Subwatershed Sta 174+75 #m | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| West Fork #3 Subwtrshd Sta 38+15 #6 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Todd Dam | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Lum Hollow Subwatershed M-13210 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Dutch Hollow Subwatershed Site M-1 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1983 |
| Dutch Hollow Subwatershed Site 1-5 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1994 |
| Parnell Creek Subwatershed Site M-4 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Big Whiskey 1 Subwatershed Site 13-1 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Wolf Creek Subwatershed Site 6-1 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Parnell Creek Subwatershed Site 17-1 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Bruene-spahn Subwtrshd Sta 32+82 #6 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Bruene Dam | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Weber Creek Subwatershed Site M-13941 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Neustrom Subwatershed Site M-3 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1971 |
| Lum Hollow Subwatershed 9-10651 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Bacon Creek Watershed Site L-2 | Low | Not assessed | 25 | Flood Risk Reduction | 1976 |
| Willow Creek Subwatershed Site M-4 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Idot Roadgrade Dam 7-88-47 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1979 |
| Anthon Subwatershed Site 2-2760 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1954 |
| Mc Larty-edwards Subwtrshd Sta 73+25 #2 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Mc Larty-edwards Subwtrshd Sta 54+65 #1 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| West Fork #3 Subwtrshd Site 6-2107 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1962 |
| Heisler Creek Subwtrshd Sta 8+80 #3f-2 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Gothier No.2 Subwatershed 14115 | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Parnell Creek Subwatershed Site M-8 | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1968 |
| Zellmer Subwtrshd Sta 60+50 #a | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Sparks Dam | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Mc Larty-edwards Subwatershed Site M-5 | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1966 |
| Tyer Dam | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1997 |
| Davis Subwatershed M-2410 | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Big Coon Subwatershed Site L-3 | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1998 |
| Big Whiskey 1 Subwatershed Site 13-2 | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Weber Creek Subwatershed Site 5-2832 | Low | Not assessed | 21 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Bacon Creek Watershed Site J-4 | Low | Not assessed | 20 | Other | 1985 |
| Big Coon Subwatershed Site M-5 | Low | Not assessed | 20 | Flood Risk Reduction | 2000 |
| Owega, Wsc8 Dam | Low | Not assessed | 9 | Fish and Wildlife Pond | 2004 |