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 2001–2025 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Chapelle Hyde County | 20 | 1937 | Low | Not Rated |
| Chambliss Number 3 Jones County | 27 | 1951 | Low | Not Rated |
| Chambliss Number 2 Jones County | 21 | 1960 | Low | Not Rated |
| Chambliss Number 1 Jones County | 25 | 1958 | Low | Not Rated |
| C&F Ranch Perkins County | 13 | 1952 | Low | Not Rated |
| Cedar Grove Colony Dam Brule County | 19 | 1937 | Low | Not Rated |
| Cedar Creek Dam Bennett County | 27 | 1989 | Low | Not Rated |
| Cedar 19 Jackson County | 17 | 1937 | Low | Not Rated |
| Cecil Vig No. 4 Meade County | 23 | 1965 | Low | Not Rated |
| Cecil Vig Meade County | 23 | 1965 | Low | Not Rated |
| Cecil Vig Meade County | 22 | 1963 | Low | Not Rated |
| Cecil Vig Meade County | 32 | 1963 | Low | Not Rated |
| C. Clement Hyde County | 12 | 1949 | Low | Not Rated |
| C. Birkland Ziebach County | 14 | 1944 | Low | Not Rated |
| C. Bennett Ziebach County | 17 | 1942 | Low | Not Rated |
| Catron Irrigation Harding County | 18 | 1951 | Low | Not Rated |
| Casanova Gpa Brown County | 9 | 1995 | Low | Not Rated |
| Carthage Miner County | 26 | 1964 | Low | Not Rated |
| Carr No.3 Mellette County | 27 | 1962 | Low | Not Rated |
| Carr No.2 Mellette County | 27 | 1960 | Low | Not Rated |
| Carr No.1 Mellette County | 26 | 1963 | Low | Not Rated |
| Carr John Jr Number 3 Mellette County | 25 | 1967 | Low | Not Rated |
| Carr John Jr No.2 Mellette County | 27 | 1968 | Low | Not Rated |
| Carr John Jr. No. 1 Mellette County | 26 | 1961 | Low | Not Rated |
| Carr #6 Mellette County | 26 | 1957 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.