Tallest Dams in Montana

Montana has 2980 dams with recorded heights. The tallest is Yankee Doodle Tailings Dam at 570 feet. Taller dams impound more water and carry greater potential energy, which is why height is a key factor in hazard classification and inspection requirements.

#	Dam	County	Height (ft)	Type	Purpose	Hazard	Year
1	Yankee Doodle Tailings Dam	Silver Bow	570	Rockfill	Other	High	1972
2	Hungry Horse Dam	Flathead	564	Concrete	Flood Risk Reduction	High	1953
3	Yellowtail Dam	Big Horn	525	Concrete		High	1966
4	Libby Dam	Lincoln	422	Gravity	Hydroelectric	High	1973
5	Noxon Rapids	Sanders	260	Gravity	Hydroelectric	High	1960
6	Fort Peck Dam	McCone	256	Earth	Flood Risk Reduction	High	1940
7	Canyon Ferry Dam	Lewis and Clark	225	Concrete	Flood Risk Reduction	High	1954
8	Swift (pondera)	Pondera	205	Concrete	Irrigation	High	1967
9	Selis Ksanka Qlispe (skq)	Lake	200	Arch	Hydroelectric	High	1938
10	Gibson Dam	Teton	199	Concrete	Irrigation	High	1929
11	Tailings Impoundment	Madison	155	Earth		Significant
12	Kootenai Dvlpmnt Impoundment Dam	Lincoln	151	Earth	Other	High	1980
13	Clark Canyon Dam	Beaverhead	148	Earth	Flood Risk Reduction	High	1964
14	West Fork Bitterroot (painted Rocks)	Ravalli	143	Earth	Irrigation	High	1940
15	Willow Creek	Big Horn	136	Earth	Irrigation	High	1941
16	Sun River Diversion Dam	Teton	132	Concrete	Irrigation	High	1915
17	Newlan Creek Dam	Meagher	131	Earth	Irrigation	High	1977
18	Hubbart	Flathead	130	Concrete	Irrigation	High	1923
19	Hauser Dam	Lewis and Clark	125	Gravity	Hydroelectric	High	1911
20	Holter Dam	Lewis and Clark	124	Gravity	Hydroelectric	High	1918
21	Hebgen Dam	Gallatin	120	Earth	Hydroelectric	High	1915
22	Fresno Dam	Hill	111	Earth	Irrigation	High	1939
23	Ruby Dam	Madison	111	Earth	Irrigation	High	1938
24	Lake Sherburne Dam	Glacier	109	Earth	Irrigation	High	1919
25	Beaver Creek Reservoir Dam	Hill	108	Earth	Irrigation	High	1974
26	Morony	Cascade	107	Gravity	Hydroelectric	High	1929
27	Bair	Meagher	106	Earth	Irrigation	High	1939
28	Cochrane	Cascade	105	Gravity	Hydroelectric	High	1957
29	Willow Creek Dam	Madison	105	Earth	Irrigation	High	1938
30	Nevada Creek Dam	Powell	105	Earth	Irrigation	High	1938
31	Cooney	Carbon	102	Earth	Irrigation	High	1937
32	Basin Creek Dam #1	Silver Bow	101	Concrete	Water Supply	High	1897
33	West Dam	Deer Lodge	100	Earth		Significant
34	Crow	Lake	99	Earth	Irrigation	High	1933
35	Mission	Lake	98	Earth	Irrigation	High	1935
36	Lower Willow Creek Dam	Granite	96	Earth	Irrigation	High	1962
37	Little Blue Dam	Sanders	95	Earth	Other	Low	1954
38	Tongue River Dam	Big Horn	93	Earth	Irrigation	High	1939
39	East Fork Dam	Fergus	93	Earth	Recreation	High	1974
40	Cedar Creek	Flathead	93	Earth	Water Supply	High	1971
41	North Fork Of Smith River Dam	Meagher	91	Earth	Irrigation	High	1936
42	Martinsdale, North Dam	Wheatland	91	Earth	Irrigation	High	1939
43	Colstrip Evaporation Pond Dam	Rosebud	88	Earth	Other	High	1976
44	Bullhook Dam	Hill	87	Earth	Flood Risk Reduction	High	1955
45	Norwegian Creek Dam	Madison	85	Earth	Irrigation	Significant	1958
46	Ryan	Cascade	82	Gravity	Hydroelectric	High	1915
47	Helen B	Carter	81	Earth	Irrigation	Low	1966
48	Pike Creek Dam	Fergus	81	Earth	Recreation	High	1977
49	East Dam	Deer Lodge	80	Earth		Significant
50	Big Casino Creek Dam	Fergus	80	Earth	Irrigation	High	1976

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