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 2226–2250 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bad River Cattle Co. #2 Stanley County | 27 | 1960 | Low | Not Rated |
| Bad River Cattle Co. #1 Stanley County | 27 | 1963 | Low | Not Rated |
| Bachelor No. 1 Mellette County | 26 | 1971 | Low | Not Rated |
| A.W. Spiry Walworth County | 26 | 1953 | Low | Not Rated |
| A.W. Spiry Walworth County | 25 | 1956 | Low | Not Rated |
| Atkinson No.1 Mellette County | 28 | 1969 | Low | Not Rated |
| Astleford No.3 Mellette County | 25 | 1936 | Low | Not Rated |
| Astleford No.2 Mellette County | 26 | 1966 | Low | Not Rated |
| Astleford No. 1 Mellette County | 27 | 1965 | Low | Not Rated |
| Astleford No. 1 Mellette County | 29 | 1963 | Low | Not Rated |
| A. Simons Meade County | 19 | 1956 | Low | Not Rated |
| A. Samuelson No.1 Meade County | 13 | 1942 | Low | Not Rated |
| Arthur W. Holzwarth Potter County | 15 | 1936 | Low | Not Rated |
| Arthur Preszier Perkins County | 17 | 1952 | Low | Not Rated |
| Arp Number 1 Jones County | 29 | 1953 | Low | Not Rated |
| Arnt Jorgenson Perkins County | 17 | 1953 | Low | Not Rated |
| Armstrong Irr. Dam Haakon County | 21 | 1974 | Low | Not Rated |
| Arke Dam Jackson County | 16 | 1930 | Low | Not Rated |
| Argyle Harding County | 26 | 1956 | Low | Not Rated |
| Archie Millard #2 Lyman County | 26 | 1968 | Low | Not Rated |
| Archie Millard #1 Lyman County | 27 | 1960 | Low | Not Rated |
| A. Oakland Meade County | 21 | 1954 | Low | Not Rated |
| Antrum Harding County | 20 | 1946 | Low | Not Rated |
| Antler Harding County | 22 | 1958 | Low | Not Rated |
| Ankony Ranch INC Hyde County | 16 | 1949 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.