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 1326–1350 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Louis Bonhorst #1 Stanley County | 30 | 1959 | Low | Not Rated |
| Louis Bonhorst Number 2 Stanley County | 35 | 1958 | Low | Not Rated |
| Louis Bonhorst Number 3 Stanley County | 27 | 1958 | Low | Not Rated |
| Louis Bonhorst Number 4 Stanley County | 35 | 1961 | Low | Not Rated |
| Louis Bonhorst Number 5 Stanley County | 42 | 1962 | Low | Not Rated |
| Louis Caldwell Stanley County | 25 | 1956 | Low | Not Rated |
| Louis Lesmeister Dewey County | 16 | 1940 | Low | Not Rated |
| Lowell West Dam Sully County | 60 | 1976 | Low | Not Rated |
| Lower Booth Jones County | 22 | 2024 | Low | Not Rated |
| Lower James Rc&D Ca-171-Ya Yankton County | 31 | 1980 | Low | Not Rated |
| Loyalton (Stafford) Edmunds County | 33 | 1934 | Low | Not Rated |
| L. Reeves No.3 Meade County | 23 | 1949 | Low | Not Rated |
| L. Runestad Hyde County | 15 | 1943 | Low | Not Rated |
| L. Stephenson Hyde County | 13 | 1951 | Low | Not Rated |
| Ludlow Dam Harding County | 36 | 1951 | Low | Not Rated |
| Lundren 2 Meade County | 19 | 1960 | Low | Not Rated |
| Lurz Pennington County | 20 | 1957 | Low | Not Rated |
| Luxemberger Dam Aurora County | 13 | 1938 | Low | Poor |
| L. Woodward Ziebach County | 21 | 1961 | Low | Not Rated |
| Lyman Number 1 Jones County | 29 | 1962 | Low | Not Rated |
| Lyman Number 2 Jones County | 28 | 1955 | Low | Not Rated |
| Lyman Number 3 Jones County | 35 | 1958 | Low | Not Rated |
| Lyman Number 4 Jones County | 27 | 1957 | Low | Not Rated |
| Lyman Number 5 Jones County | 27 | 1962 | Low | Not Rated |
| Lyman Number 6 Jones County | 27 | 1958 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.