Hydroelectric Dams in Idaho

Idaho has 38 hydroelectric dams, of which 20 carry a high hazard classification. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity.

#	Dam	County	Height (ft)	Hazard	Condition	Year
1	Hells Canyon	Adams	330	High	Satisfactory	1967
2	Oxbow	Adams	209	High	Fair	1961
3	Black Canyon Diversion Dam	Gem	183	High	Not Available	1924
4	Albeni Falls Dam	Bonner	180	High	Not Available	1955
5	Cabinet Gorge	Bonner	177	High	Satisfactory	1952
6	Deadwood Dam	Valley	165	High	Not Available	1931
7	Bliss	Gooding	140	High	Satisfactory	1950
8	C J Strike	Owyhee	115	High	Satisfactory	1952
9	Lower Salmon	Gooding	110	High	Satisfactory	1949
10	Cascade Dam	Valley	110	High	Not Available	1948
11	Moyie	Boundary	92	High	Fair	1949
12	Swan Falls	Ada	88	High	Satisfactory	1901
13	Upper Salmon Falls A-plant & Forebay	Twin Falls	85	Low	Satisfactory	1937
14	Upper Salmon Falls B-plant Forebay	Twin Falls	73	Low	Satisfactory	1947
15	Post Falls Middle Channel	Kootenai	64	High	Satisfactory	1906
16	Magic Spillway	Blaine	50	High	Fair	1910
17	Gem State	Bonneville	40	High	Satisfactory	1988
18	Idaho Falls Upper Powerhouse Dam No 2	Bonneville	37	Low	Satisfactory	1982
19	Upper Diversion Dam #2	Bonneville	33	Low	Satisfactory	1982
20	Upper Salmon Falls Dam	Gooding	32	Low	Fair	1937
21	Post Falls North Channel	Kootenai	31	High	Fair	1906
22	City Diversion	Bonneville	30	Low	Satisfactory	1982
23	Gem State Left Dike	Bonneville	30	High	Satisfactory	1988
24	Gem State Right Dike	Bonneville	30	High	Satisfactory	1988
25	Twin Falls Intake Dam	Twin Falls	30	Low	Satisfactory	1935
26	Idaho Falls Upper Diversion Dam No 1	Bonneville	28	Low	Satisfactory	1982
27	Barber	Ada	26	Significant	Poor	1904
28	Post Falls South Channel	Kootenai	25	High	Satisfactory	1906
29	Shoshone Falls Dam 4	Twin Falls	18	Low	Satisfactory	1907
30	Shoshone Falls Dam 2	Jerome	16	Low	Satisfactory	1907
31	Shoshone Falls Dam 1	Jerome	16	Low	Satisfactory	1907
32	Shoshone Falls Dam 3	Jerome	15	Low	Satisfactory	1907
33	Lower Diversion	Bonneville	14	Low	Satisfactory	1982
34	Upper Dike	Bonneville	12	High	Satisfactory	1982
35	Buffalo River	Fremont	12	Low	Satisfactory	1936
36	Ravenscroft Diversion	Gooding	10	Low	Satisfactory	1983
37	Upper Salmon Falls A-plant Diversion Dam	Twin Falls	9	Low	Satisfactory	1937
38	Horseshoe Bend Diversion	Boise	8	Low	Fair	1995

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