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 1176–1200 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lee Calhoon 2 Tripp County | 28 | 1965 | Low | Not Rated |
| Lee Calhoon 1 Tripp County | 30 | 1965 | Low | Not Rated |
| Lee Anderson Lyman County | 27 | 1960 | Low | Not Rated |
| L. Barnica Ziebach County | 16 | 1938 | Low | Not Rated |
| L. Bachand Meade County | 23 | 1943 | Low | Not Rated |
| Lawrence Donelan Stanley County | 39 | 1958 | Low | Not Rated |
| Lavon Shearer Pennington County | 24 | 1937 | Low | Not Rated |
| Lavon Shearer Pennington County | 17 | 1935 | Low | Not Rated |
| Laudenslager No. 1 Mellette County | 25 | 1966 | Low | Not Rated |
| Latham Dam Harding County | 20 | 2017 | Low | Not Rated |
| Larson No. 2 Mellette County | 29 | 1964 | Low | Not Rated |
| Larson No. 1 Mellette County | 29 | 1964 | Low | Not Rated |
| Larson Dam Tripp County | 30 | 1977 | Low | Not Rated |
| Larsen Lyman 2 Pennington County | 20 | 1959 | Low | Not Rated |
| Larsen Lyman 1 Pennington County | 23 | 1958 | Low | Not Rated |
| Larsen Irrigation Dam Lyman County | 25 | 1978 | Low | Not Rated |
| Larsen Dam Lyman County | 26 | 1937 | Low | Not Rated |
| Largis Dam Harding County | 17 | 1947 | Low | Not Rated |
| Lamm Dam Haakon County | 19 | 1954 | Low | Not Rated |
| Lale Pond No.2 Harding County | 20 | 1950 | Low | Not Rated |
| Lakota Dam Lincoln County | 46 | 1967 | Low | Not Rated |
| Lake Pelican Flood Control Dam Codington County | 20 | 2003 | Low | Not Rated |
| Lake Louise Hand County | 34 | 1932 | Low | Not Rated |
| Lake Herman Mip #3 Lake County | 29 | 1981 | Low | Not Rated |
| Lake Herman Mip #2 Lake County | 21 | 1980 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.