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 2126–2150 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| B. Oleary Dewey County | 18 | 1945 | Low | Not Rated |
| Bohle Dam Corson County | 35 | 1937 | Low | Not Rated |
| Bogner Dam Fall River County | 11 | 1960 | Low | Not Rated |
| Bob Stoeser Dam Stanley County | 22 | 1996 | Low | Not Rated |
| Bob Houck No.3 Potter County | 35 | 1985 | Low | Not Rated |
| Bobby Peters 2 Meade County | 18 | 1963 | Low | Not Rated |
| Blue Cloud Abbey Dam #2 Grant County | 40 | 1978 | Low | Not Rated |
| Blue Cloud Abbey Dam #1 Grant County | 35 | 1951 | Low | Not Rated |
| Blooming Valley Dairy Sw Wwp Grant County | 16 | 2023 | Low | Not Rated |
| Blooming Valley Dairy Ne Wwp Grant County | 12 | 2023 | Low | Not Rated |
| Bloom Tripp County | 16 | 1934 | Low | Not Rated |
| Bloom Pennington County | 21 | 2001 | Low | Not Rated |
| Blight Mellette County | 25 | 1957 | Low | Not Rated |
| Blessing No.1 Tripp County | 27 | 1977 | Low | Not Rated |
| Bleha Dam Buffalo County | 26 | 1972 | Low | Not Rated |
| Blazek Dam Meade County | 14 | 1943 | Low | Not Rated |
| Blair Dam Meade County | 18 | 1985 | Low | Not Rated |
| Blair #3 Haakon County | 19 | 1969 | Low | Not Rated |
| Blair #1 Haakon County | 40 | 1950 | Low | Not Rated |
| Blaine Drageset Corson County | 24 | 1950 | Low | Not Rated |
| Black Gap Pond Pennington County | 14 | 1938 | Low | Not Rated |
| Bison Perkins County | 24 | 1947 | Low | Not Rated |
| Bill Welk Dam Brown County | 15 | 1996 | Low | Not Rated |
| Bill Trask Pennington County | 32 | 1964 | Low | Not Rated |
| Bill Lindskov Corson County | 20 | 1970 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.