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 2501–2525 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| American Luthern Church Corson County | 30 | 1960 | Low | Not Rated |
| Ambur No.1 Mellette County | 26 | 1968 | Low | Not Rated |
| Ambur Bros No.1 Mellette County | 34 | 1953 | Low | Not Rated |
| Ambrose Hyde County | 21 | 1935 | High | Poor |
| Alvin Horman Stanley County | 26 | 1960 | Low | Not Rated |
| Alvine Dam Lake County | 30 | 1974 | Low | Not Rated |
| Alvin Lincoln County | 36 | 1954 | Low | Not Rated |
| Al Reddin Hughes County | 20 | 1938 | Low | Not Rated |
| Allerdings No.1 Walworth County | 26 | 1985 | Low | Not Rated |
| Allen Tucker No.1 Mellette County | 25 | 1967 | Low | Not Rated |
| Allen Stirling Number 2 Stanley County | 30 | 1958 | Low | Not Rated |
| Allen Stirling Number 1 Stanley County | 25 | 1959 | Low | Not Rated |
| Allen Robinson Perkins County | 16 | 1953 | Low | Not Rated |
| Allen Bennett County | 24 | 1961 | High | Unsatisfactory |
| Alkali (Nid) Lyman County | 16 | 1938 | Low | Not Rated |
| Alkali Creek Dam Butte County | 31 | — | Low | Unsatisfactory |
| Alfred Urban Lyman County | 25 | 1963 | Low | Not Rated |
| Alfred J. Burke Dam No.1 Butte County | 23 | 1960 | Low | Not Rated |
| Alfred Hutchinson Lyman County | 26 | 1961 | Low | Not Rated |
| Alfred Cowan Corson County | 23 | 1940 | Low | Not Rated |
| Alex Krischen Perkins County | 18 | 1951 | Low | Not Rated |
| Alex Krischen Perkins County | 20 | 1951 | Low | Not Rated |
| Alexander Dam Sully County | 38 | 1976 | Low | Not Rated |
| A. Lee Dewey County | 20 | 1954 | Low | Not Rated |
| Alcorn Harding County | 15 | 1951 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.