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 51–75 of 149
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sd Noname 119 Haakon County | 23 | 1950 | Significant | Not Rated |
| Sd Noname 118 Haakon County | 11 | 1950 | Significant | Not Rated |
| Sd Noname 114 Haakon County | 21 | 1948 | Significant | Not Rated |
| Sd Noname 112 Haakon County | 30 | 1957 | Significant | Not Rated |
| Salt Lake Dam Harding County | 11 | 1954 | Significant | Not Rated |
| Rude Hasvold Road Dam Grant County | 32 | 1970 | Significant | Not Rated |
| Roubaix Lake Lawrence County | 25 | 1936 | Significant | Not Rated |
| Robertson No. 1 Gregory County | 30 | 1975 | Significant | Not Rated |
| R.L. Cundy Dam No. 1 Butte County | 21 | 1957 | Significant | Not Rated |
| Richard Glines Corson County | 39 | 1910 | Significant | Not Rated |
| Reliance Dam Lyman County | 16 | 1935 | Significant | Not Rated |
| Ravine Park Beadle County | 16 | 1938 | Significant | Not Rated |
| Rasmussen No.1 Custer County | 30 | 1943 | Significant | Not Rated |
| Ralph Hedman Stanley County | 27 | 1958 | Significant | Not Rated |
| Rabbit Creek Dam Harding County | 34 | 1970 | Significant | Not Rated |
| Pudwell Dam Corson County | 27 | 1939 | Significant | Not Rated |
| Prince Irrigation Dam #2 Stanley County | 46 | 1976 | Significant | Not Rated |
| Person #1 Marshall County | 21 | 1983 | Significant | Not Rated |
| Pearl English Crain #1 Hughes County | 21 | 1950 | Significant | Not Rated |
| Pazour Lake Brule County | 21 | 1936 | Significant | Not Rated |
| Ottumwa Dam Haakon County | 26 | 1938 | Significant | Not Rated |
| Orl Walcott #1 Lyman County | 53 | 1967 | Significant | Not Rated |
| Olsen Dam Buffalo County | 35 | 1952 | Significant | Not Rated |
| O'Connell Dam Haakon County | 32 | 1999 | Significant | Not Rated |
| Niemi No.4 Harding County | 19 | 1954 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.