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 2501–2525 of 2,990
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Chico Flats Valley County | 23 | 1956 | Low | Not Rated |
| Chicken of The Sea Phillips County | 15 | — | Low | Not Rated |
| Chicken Fergus County | 18 | 1948 | Low | Not Rated |
| Chicago Lake Liberty County | 15 | 1968 | Low | Not Rated |
| Chezum #1 Custer County | 20 | 1960 | Low | Not Rated |
| Chessman Saddle Dam Jefferson County | 27 | 1908 | High | Satisfactory |
| Chessman Main Dam Lewis and Clark County | 57 | 1908 | High | Fair |
| Cherry Creek #9 Rosebud County | 20 | 1968 | Low | Not Rated |
| Cherry Creek #7 Rosebud County | 20 | 1940 | Low | Not Rated |
| Cherry Creek #6 Rosebud County | 16 | 1940 | Low | Not Rated |
| Cherry Creek #5 Rosebud County | 14 | 1947 | Low | Not Rated |
| Cherry Creek #4 Rosebud County | 20 | 1945 | Low | Not Rated |
| Cherry Creek #23 Garfield County | 18 | 1952 | Low | Not Rated |
| Cherry Creek #2 Rosebud County | 14 | 1940 | Low | Not Rated |
| Cherry Creek #17 Rosebud County | 17 | 1953 | Low | Not Rated |
| Cherry Creek #15 Rosebud County | 24 | 1948 | Low | Not Rated |
| Cherry Creek #12 Garfield County | 17 | 1940 | Low | Not Rated |
| Cherry Creek #11 Rosebud County | 18 | 1944 | Low | Not Rated |
| Cherry Creek #10 Rosebud County | 15 | 1948 | Low | Not Rated |
| Cherry Creek #1 Rosebud County | 16 | 1943 | Low | Not Rated |
| Cherry Creek Rosebud County | 24 | 1966 | Low | Not Rated |
| Cherry #1 Garfield County | 20 | 1958 | Low | Not Rated |
| Charter #1 Yellowstone County | 30 | 1979 | Low | Not Rated |
| Charlotts Webb Cascade County | 20 | 1960 | Low | Not Rated |
| Charangus Garfield County | 30 | 1936 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.