South Dakota Dams
2,541 dams tracked by the National Inventory of Dams
Total Dams
2,541
High Hazard
86
3.4%
Poor / Unsatisfactory
34
Average Age
68 yrs
Hazard Classification
High86 (3.4%)
Significant149 (5.9%)
Low2,306 (90.8%)
Condition Assessment
Satisfactory9 (0.4%)
Fair41 (1.6%)
Poor / Unsatisfactory34 (1.3%)
Not Rated2,457 (96.7%)
Federal
158
State
171
Local
84
Private
2,125
Tallest Dams
- Grizzly Gulch Tailings Dam380 ft
- Oahe Dam245 ft
- Big Bend Dam205 ft
- Angostura Dam193 ft
- Deerfield Dam171 ft
High Hazard Dams
- Grizzly Gulch Tailings DamHigh
- Oahe DamHigh
- Big Bend DamHigh
- Angostura DamHigh
- Deerfield DamHigh
Poor Condition Dams
- OglalaUnsatisfactory
- MarindahlPoor
- Crow CreekPoor
- RichmondPoor
- Ghost HawkUnsatisfactory
All Dams in South Dakota
Showing 1801–1825 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| G. Boldt Dewey County | 18 | 1958 | Low | Not Rated |
| G. Boke No.2 Meade County | 19 | 1948 | Low | Not Rated |
| G. Boke No.1 Meade County | 27 | 1944 | Low | Not Rated |
| Gaylord Saucerman Stanley County | 19 | 1964 | Low | Not Rated |
| Gaylord Norman #2 Stanley County | 33 | 1956 | Low | Not Rated |
| Gaylord Norman #1 Stanley County | 31 | 1955 | Low | Not Rated |
| Gavins Point Dam Cedar County | 74 | 1958 | High | Not Available |
| Gary Larson Dam Perkins County | 22 | 1951 | Low | Not Rated |
| Gary Larson Perkins County | 18 | 1952 | Low | Not Rated |
| Gary Ham Dam Butte County | 26 | 2002 | Low | Not Rated |
| Garrett Dam Sully County | 64 | 1980 | Low | Not Rated |
| Garr Dewey County | 20 | 1942 | Low | Not Rated |
| Gardner Lake Dam Harding County | 32 | 1948 | High | Fair |
| Garber Dam Hughes County | 32 | 2000 | Low | Not Rated |
| Gale Grazing Assn No. 2 Campbell County | 28 | 1963 | Low | Not Rated |
| Gale Grazing Assn No. 1 Campbell County | 26 | 1956 | Low | Not Rated |
| Gail Vrooman Dewey County | 20 | 1950 | Low | Not Rated |
| F. Witte Perkins County | 21 | 1949 | Low | Not Rated |
| Fuegan Bros. Buffalo County | 23 | 1947 | Low | Not Rated |
| Fryer Dam Marshall County | 28 | 1981 | Significant | Not Rated |
| Frosh (Nid) Fall River County | 20 | 1937 | Low | Not Rated |
| F.R. Fackelman Stanley County | 18 | 1953 | Low | Not Rated |
| Freeman Dam Jackson County | 23 | 1937 | Low | Not Rated |
| Freeman Meade County | 17 | 1938 | Low | Not Rated |
| Fred Joens Dewey County | 16 | 1941 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.