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 701–725 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Ray Martinmaas Dam Hand County | 17 | 2022 | Low | Not Rated |
| Ray Haberman Sr No.2 Dewey County | 21 | 1950 | Low | Not Rated |
| Ray Haberman Sr No.1 Dewey County | 24 | 1950 | Low | Not Rated |
| Ray E. Smith Dam Custer County | 18 | 1954 | Low | Not Rated |
| Rausch Dam Faulk County | 10 | 1999 | Low | Not Rated |
| Rassmussen #1 Mellette County | 24 | 1957 | Low | Not Rated |
| Rankin Number 2 Jones County | 25 | 1963 | Low | Not Rated |
| Rankin Number 1 Jones County | 26 | 1963 | Low | Not Rated |
| Randall Rc&D Ch-259-Bh Bon Homme County | 32 | 1983 | Low | Not Rated |
| Randall Rc&D Ca-66-Bh Bon Homme County | 39 | 1971 | Low | Not Rated |
| Randall Rc&D Ca-65b-Bh Bon Homme County | 30 | 1971 | Low | Not Rated |
| Randall Rc&D Ca-31e-Bh Bon Homme County | 31 | 1975 | Low | Not Rated |
| Randall Rc&D Ca-31a-Bh Bon Homme County | 31 | 1968 | Low | Not Rated |
| Randall Rc&D Ca-1-Bh Bon Homme County | 25 | 1967 | Low | Not Rated |
| Randall Rc&D Ca-1b-Bh Bon Homme County | 35 | 1970 | Low | Not Rated |
| Randall Rc&D Ca-191-Bh Bon Homme County | 22 | 1983 | Low | Not Rated |
| Randall Rc&D Ca-176-Gr Gregory County | 69 | 1976 | Low | Not Rated |
| Randall Rc&D Ca-167.3-Bh Bon Homme County | 45 | 1975 | Low | Not Rated |
| Randall Rc&D Ca-124-Bh Bon Homme County | 29 | 1975 | Low | Not Rated |
| Randall Rc&D Ca-118.1-Bh Bon Homme County | 35 | 1973 | Low | Not Rated |
| Randall Dam Brule County | 27 | 1949 | Low | Not Rated |
| Ralph Ritter No.2 Campbell County | 26 | 1965 | Low | Not Rated |
| Ralph Holzwarth Potter County | 17 | 1950 | Low | Not Rated |
| Ralph Hampton Meade County | 21 | 1953 | Low | Not Rated |
| R. Allgaier Hand County | 23 | 1956 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.