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 1926–1950 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Crowe Dam Fall River County | 21 | 1936 | Low | Not Rated |
| Crooked Harding County | 19 | 1948 | Low | Not Rated |
| Crook Dam Spink County | 11 | 1951 | Low | Not Rated |
| Crompton McPherson County | 20 | 1935 | Low | Not Rated |
| Crew 28 (Nid) Jackson County | 12 | 1937 | Low | Not Rated |
| Cressy Number 3 Jones County | 20 | 1954 | Low | Not Rated |
| Cressy Number 2 Jones County | 27 | 1959 | Low | Not Rated |
| Cressy Number 1 Jones County | 21 | 1952 | Low | Not Rated |
| C. Peterson No.4 Dewey County | 15 | 1940 | Low | Not Rated |
| C. Peterson No.3 Dewey County | 22 | 1940 | Low | Not Rated |
| C. Peterson No.2 Dewey County | 19 | 1956 | Low | Not Rated |
| C. Peterson No.1 Dewey County | 24 | 1945 | Low | Not Rated |
| C. Peterson Custer County | 25 | 1958 | Low | Not Rated |
| Cowan Dam Corson County | 30 | 1969 | Low | Not Rated |
| County Line Impoundment Lyman County | 17 | 1992 | Low | Not Rated |
| County Line Dam Custer County | 26 | 1945 | Low | Not Rated |
| Cottonwood Field Station Jackson County | 18 | 1937 | Low | Not Rated |
| Cother Clanton Harding County | 19 | 1940 | Low | Not Rated |
| Cortney Dam Fall River County | 20 | 1999 | Low | Not Rated |
| Copeland Dam Todd County | 24 | 1973 | Low | Not Rated |
| Cope Dam Fall River County | 27 | 1941 | Low | Not Rated |
| Cooper Dam McCook County | 21 | 1997 | Low | Not Rated |
| Cone Dam Lyman County | 14 | 2013 | Low | Not Rated |
| Comp Dam Lyman County | 18 | 1994 | Low | Not Rated |
| Columbia Road Dam Brown County | 11 | 1939 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.