Montana Dams
2,990 dams tracked by the National Inventory of Dams
Total Dams
2,990
High Hazard
188
6.3%
Poor / Unsatisfactory
132
Average Age
74 yrs
Hazard Classification
High188 (6.3%)
Significant193 (6.5%)
Low2,606 (87.2%)
Condition Assessment
Satisfactory113 (3.8%)
Fair44 (1.5%)
Poor / Unsatisfactory132 (4.4%)
Not Rated2,701 (90.3%)
Federal
278
State
151
Local
84
Private
2,466
Tallest Dams
- Yankee Doodle Tailings Dam570 ft
- Hungry Horse Dam564 ft
- Libby Dam422 ft
- Noxon Rapids260 ft
- Fort Peck Dam256 ft
High Hazard Dams
- Yankee Doodle Tailings DamHigh
- Hungry Horse DamHigh
- Libby DamHigh
- Noxon RapidsHigh
- Fort Peck DamHigh
Poor Condition Dams
All Dams in Montana
Showing 1476–1500 of 2,990
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Kerns Lake (Powell) Powell County | 26 | 1965 | High | Fair |
| Keogh Jefferson County | 30 | 1956 | Low | Not Available |
| Kendrick#1 Powder River County | 21 | 1949 | Low | Not Rated |
| Kelso #5 Phillips County | 18 | 1949 | Low | Not Rated |
| Kelso #3 Phillips County | 8 | 1945 | Low | Not Rated |
| Kelso #1 Phillips County | 15 | 1930 | Low | Not Rated |
| Kelly (Park) Park County | 15 | 1955 | Low | Not Rated |
| Kelly Dam Beaverhead County | 26 | 1965 | High | Not Rated |
| Keirle #3 Fallon County | 15 | 1959 | Low | Not Rated |
| Keirle Fallon County | 15 | 1963 | Low | Not Rated |
| Keil Ranch Reservoir #1 Pondera County | 30 | 1940 | Low | Not Rated |
| Keep Cool Meagher County | 30 | 1950 | Significant | Not Rated |
| Keeling Hill County | 20 | 1947 | Low | Not Rated |
| Kauk Pondera County | 20 | 1940 | Low | Not Rated |
| Katy's Lake Dam Sheridan County | 10 | 1990 | Low | Poor |
| Kat Ruler Hill County | 15 | 1965 | Low | Not Rated |
| Karen #7 Garfield County | 23 | 1945 | Low | Not Rated |
| Karen #6 Garfield County | 20 | 1925 | Low | Not Rated |
| Karen #5 Garfield County | 17 | 1960 | Low | Not Rated |
| Karen #4 Garfield County | 18 | 1920 | Low | Not Rated |
| Karen #3 Garfield County | 22 | 1974 | Low | Not Rated |
| K and L Mcdowell #7 Carter County | 30 | 1940 | Low | Not Rated |
| K and L Mcdowell #5 Carter County | 25 | 1940 | Low | Not Rated |
| K and L Mc Dowell #3 Carter County | 30 | 1969 | Low | Not Rated |
| Kaiser Park County | 20 | 1964 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.