118Total Dams
12High Hazard
0Significant
Dam Safety in Pennington County, South Dakota
Pennington County has 118 dams tracked in the National Inventory of Dams. Of these, 12 are classified as high hazard — meaning failure would probably cause loss of human life. Currently, 1 dam has a condition assessment of poor or unsatisfactory.
The average dam in Pennington County is 72 years old. The most common purpose is fire protection, stock, or small fish pond. The tallest dam is Deerfield Dam at 171 ft.
Explore more: Oldest dams in South Dakota · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Deerfield Dam | High | Not assessed | 171 | Fish and Wildlife Pond | 1947 |
| Sheridan Lake | High | Not assessed | 134 | Recreation | 1939 |
| Pactola Dike 1 | High | Not assessed | 115 | 1956 | |
| Horsethief Lake | High | Not assessed | 65 | Recreation | 1940 |
| Red Dale Gulch | High | Fair | 42 | Flood Risk Reduction | 1959 |
| Deerfield Park | High | Fair | 36 | Recreation | 1981 |
| Mitchell Lake | High | Not assessed | 31 | Recreation | 1936 |
| Canyon Lake Dam | High | Fair | 31 | Irrigation | 1976 |
| Kjerstad No.1 | High | Fair | 22 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Major Lake | High | Not assessed | 18 | Recreation | 1939 |
| Kjerstad Dam No.3 | High | Fair | 15 | Fire Protection, Stock, Or Small Fish Pond | 1943 |
| Kjerstad Dam No. 2 | High | Poor | 14 | Fire Protection, Stock, Or Small Fish Pond | 1941 |
| Boy Scouts of America | Low | Not assessed | 44 | Recreation | 1975 |
| New Wall Lake | Low | Not assessed | 40 | Recreation | 1947 |
| Gordon Babcock | Low | Not assessed | 37 | Fire Protection, Stock, Or Small Fish Pond | 1951 |
| Bill Trask | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1964 |
| Veryl Schroeder 2 | Low | Not assessed | 32 | Fire Protection, Stock, Or Small Fish Pond | 1967 |
| Wicksville | Low | Not assessed | 31 | Recreation | 1935 |
| Roy Shull No.1 | Low | Not assessed | 31 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Owanka | Low | Not assessed | 28 | Recreation | 1935 |
| Sd Noname 180 | Low | Not assessed | 28 | Fire Protection, Stock, Or Small Fish Pond | 1937 |
| Bruce Dam | Low | Not assessed | 28 | Recreation | 1937 |
| Sd Noname 179 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Walt Hoffman No.1 | Low | Not assessed | 27 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Selvin Johnson | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1935 |
| Sd Noname 174 | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| Farmingdale (nid) | Low | Not assessed | 26 | Fire Protection, Stock, Or Small Fish Pond | 1936 |
| Shyne 1 | Low | Not assessed | 25 | Recreation | 1953 |
| Kirk Cordes | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| Peno Grazing Association | Low | Not assessed | 25 | Irrigation | 1952 |
| Sd Noname 173 | Low | Not assessed | 25 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Pierce Dam | Low | Not assessed | 24 | Recreation | 1935 |
| Lavon Shearer | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1937 |
| Kirk Cordes | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1953 |
| Missile 249 (nid) | Low | Not assessed | 24 | Fire Protection, Stock, Or Small Fish Pond | 1936 |
| Kirk Cordes | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1943 |
| Jerry Willuweit | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1937 |
| Larsen Lyman 1 | Low | Not assessed | 23 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Sd Noname 20 | Low | Not assessed | 23 | Irrigation | 1963 |
| Harold Severson | Low | Not assessed | 22 | Fire Protection, Stock, Or Small Fish Pond | 1936 |
| Julian Cheney | Low | Not assessed | 22 | Irrigation | 1950 |
| William Huether | Low | Not assessed | 22 | Water Supply | 1958 |
| Pace Dam | Low | Not assessed | 22 | Fish and Wildlife Pond | 2002 |
| New Underwood | Low | Not assessed | 22 | Recreation | 1946 |
| Bloom | Low | Not assessed | 21 | Fish and Wildlife Pond | 2001 |
| Percy Dam | Low | Not assessed | 21 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Sd Noname 105 | Low | Not assessed | 21 | Fire Protection, Stock, Or Small Fish Pond | 1940 |
| Sd Noname 11 | Low | Not assessed | 21 | Fire Protection, Stock, Or Small Fish Pond | 1938 |
| Lurz | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Hoffman Dam | Low | Not assessed | 20 | Recreation | 1940 |
| Dannie Oconnell | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Lewis Dam | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1961 |
| Pikes Pond | Low | Not assessed | 20 | Fish and Wildlife Pond | 1987 |
| Sd Noname 100 | Low | Not assessed | 20 | Irrigation | 1965 |
| Konrad Kjerstad | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1954 |
| Tennyson Dam | Low | Not assessed | 20 | Recreation | 1937 |
| Kirk Cordes | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1945 |
| Sd Noname 138 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Virgil Horton 2 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1937 |
| Sieler Dam | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Larsen Lyman 2 | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1959 |
| South Whitewater 251 (nid) | Low | Not assessed | 20 | Fire Protection, Stock, Or Small Fish Pond | 1936 |
| Elmer Olsen | Low | Not assessed | 19 | Fire Protection, Stock, Or Small Fish Pond | 1940 |
| Ward Dam | Low | Not assessed | 19 | Fish and Wildlife Pond | 1990 |
| Johnson | Low | Not assessed | 19 | Fire Protection, Stock, Or Small Fish Pond | 1956 |
| Sd Noname 110 | Low | Not assessed | 19 | Irrigation | 1953 |
| Marsh Dam | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1981 |
| Sd Noname 10 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1960 |
| Sd Noname 102 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1938 |
| David Kitterman | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1962 |
| Bud Bloom | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1936 |
| Veryl Schroeder 1 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Peterson Dam | Low | Not assessed | 18 | Fish and Wildlife Pond | 2000 |
| Ed Frien Dam | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Virgil Horton 4 | Low | Not assessed | 18 | Fire Protection, Stock, Or Small Fish Pond | 1952 |
| Quinn Dam | Low | Not assessed | 17 | Recreation | 1937 |
| Sd Noname 12 | Low | Not assessed | 17 | Water Supply | 1952 |
| Lavon Shearer | Low | Not assessed | 17 | Other | 1935 |
| Milton Trask | Low | Not assessed | 17 | Fire Protection, Stock, Or Small Fish Pond | 1962 |
| Theodore Kjerstad | Low | Not assessed | 17 | Fire Protection, Stock, Or Small Fish Pond | 1951 |
| Sd Noname 36 | Low | Not assessed | 17 | Fire Protection, Stock, Or Small Fish Pond | 1948 |
| Sd Noname 116 | Low | Not assessed | 17 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Glen Lakner | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1947 |
| Erwin Eisenbraun | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1948 |
| Sd Noname 18 | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Joe Papousek | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| Hank Ranch Dam | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1943 |
| Sd Noname 173 | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Donald Kelly Dam | Low | Not assessed | 16 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Quinn Twp Dam | Low | Not assessed | 16 | Recreation | 1935 |
| Thistle Dam | Low | Not assessed | 15 | ||
| Baysinger Dam | Low | Not assessed | 15 | ||
| Frank Anderson | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Sd Noname 108 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1935 |
| Sd Noname 117 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1954 |
| James Kjerstad | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| Crown Dam | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| George Knapp Dam | Low | Not assessed | 15 | Irrigation | 1955 |
| Virgil Horton 1 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1916 |
| Sd Noname 13 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1957 |
| Sd Noname 126 | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1947 |
| Fortune Dam | Low | Not assessed | 15 | Fire Protection, Stock, Or Small Fish Pond | 1974 |
| Sd Noname 111 | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 1949 |
| Sage Creek 344 | Low | Not assessed | 14 | Fish and Wildlife Pond | 1937 |
| Canata East 302 | Low | Not assessed | 14 | Fish and Wildlife Pond | 1938 |
| Tony Krebs | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 1958 |
| Old Town Dam | Low | Not assessed | 14 | Water Supply | 1941 |
| New Underwood Land Partners Dam | Low | Not assessed | 14 | Recreation | 1986 |
| Black Gap Pond | Low | Not assessed | 14 | Fire Protection, Stock, Or Small Fish Pond | 1938 |
| Geigle Dam | Low | Not assessed | 13 | Fire Protection, Stock, Or Small Fish Pond | 1965 |
| Sd Noname 178 | Low | Not assessed | 13 | Fire Protection, Stock, Or Small Fish Pond | 1936 |
| Sd Noname 128 | Low | Not assessed | 13 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Sd Noname 115 | Low | Not assessed | 13 | Fire Protection, Stock, Or Small Fish Pond | 1950 |
| Sd Noname 16 | Low | Not assessed | 12 | Fire Protection, Stock, Or Small Fish Pond | 1948 |
| Boydston Dam | Low | Not assessed | 12 | Fire Protection, Stock, Or Small Fish Pond | 2017 |
| Whitewater North Site #1 | Low | Not assessed | 11 | Debris Control | 2000 |
| Sd Noname 22 | Low | Not assessed | 10 | Fire Protection, Stock, Or Small Fish Pond | 1955 |
| Sd Noname 124 | Low | Not assessed | 9 | Fire Protection, Stock, Or Small Fish Pond | 1950 |