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 1876–1900 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| R. Talley No.2 Meade County | 11 | 1958 | Low | Not Rated |
| Rubendall Dewey County | 20 | 1958 | Low | Not Rated |
| Ruben Larosh Potter County | 13 | 1939 | Low | Not Rated |
| Rude Hasvold Road Dam Grant County | 32 | 1970 | Significant | Not Rated |
| Rudolph Larson Perkins County | 20 | 1952 | Low | Not Rated |
| Rufus Gray Hughes County | 19 | 1956 | Low | Not Rated |
| Russell Dam Meade County | 14 | 1948 | Low | Not Rated |
| Rust Number 1 Jones County | 27 | 1956 | Low | Not Rated |
| R. Van Bockle Hyde County | 11 | 1940 | Low | Not Rated |
| R. Wolff Perkins County | 19 | 1950 | Low | Not Rated |
| Ryno #1 Mellette County | 30 | 1954 | Low | Not Rated |
| Ryno #2 Mellette County | 27 | 1955 | Low | Not Rated |
| Sagebrush Harding County | 27 | 1950 | Low | Not Rated |
| Sage Creek 344 Pennington County | 14 | 1937 | Low | Not Rated |
| Salem No.2 Harding County | 13 | 1956 | Low | Not Rated |
| Salmen No.1 Harding County | 15 | 1936 | Low | Not Rated |
| Salt Lake Dam Harding County | 11 | 1954 | Significant | Not Rated |
| Sammons Ziebach County | 21 | 1967 | Low | Not Rated |
| Sammons No.2 Ziebach County | 27 | 1958 | Low | Not Rated |
| Samuel Berger Memorial Dam Marshall County | 7 | 1994 | Low | Not Rated |
| Samuelson Bros. No.1 Meade County | 20 | 1958 | Low | Not Rated |
| Samuelson Bros. No.2 Meade County | 21 | 1954 | Low | Not Rated |
| Samuelson Bros. No.4 Meade County | 15 | 1960 | Low | Not Rated |
| Samuelson Dam Meade County | 28 | 1962 | Low | Not Rated |
| Samuelson Dam #2 Meade County | 27 | 1999 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.