This is a list of dams and reservoirs in the U.S. state of Idaho.
Key | ||||
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Located on state border | S=State of Idaho | USACE=U.S. Army Corps of Engineers | USBR=U.S. Bureau of Reclamation |
Name | River | Type | Height | Reservoir | Capacity | Capacity | Owner | Built | ||
---|---|---|---|---|---|---|---|---|---|---|
Ft | m | acre.ft | km3 | MW | ||||||
Albeni Falls Dam | Pend Oreille River | Concrete gravity | 90 | 27 | Lake Pend Oreille | 1,153,000 | 1.422 | ? | USACE | 1955 |
Alexander Dam | Bear River | Concrete gravity | 94 | 29 | Alexander Reservoir | 15,760 | 0.01944 | 14 | PacifiCorp | 1925 |
American Falls Dam | Snake River | Concrete gravity | 94 | 29 | American Falls Reservoir | 1,671,300 | 2.0615 | 112 | USBR | 1978 |
Anderson Ranch Dam | South Fork Boise River | Earthfill | 456 | 139 | Anderson Ranch Reservoir | 503,500 | 0.6211 | 40 | USBR | 1950 |
Black Canyon Diversion Dam | Payette River | Concrete gravity | 183 | 56 | Black Canyon Reservoir | 31,200 | 0.0385 | 10 | USBR | 1924 |
Arrowrock Dam | Boise River | Concrete arch | 350 | 110 | Arrowrock Reservoir | 300,850 | 0.37109 | 0 | USBR | 1915 |
Blackfoot Dam | Blackfoot River | Earthfill | 55 | 17 | Blackfoot Reservoir | 417,000 | 0.514 | 0 | Idaho Bureau of Indian Affairs | 1911 |
Bliss Dam | Snake River | Concrete gravity | 70 | 21 | Bliss Reservoir | 11,000 | 0.014 | 75 | Idaho Power | 1950 |
Brownlee Dam | Snake River | Earthfill | 420 | 130 | Brownlee Reservoir | 1,426,700 | 1.7598 | 585.4 | Idaho Power | 1958 |
C. J. Strike Dam | Snake River | Earthfill | 115 | 35 | C. J. Strike Reservoir | 247,000 | 0.305 | 82.8 | Idaho Power | 1952 |
Cabinet Gorge Dam | Clark Fork | Concrete arch | 111 | 34 | Cabinet Gorge Reservoir | 106,000 | 0.131 | 231 | Avista Utilities | 1953 |
Cascade Dam | North Fork Payette River | Earthfill | 107 | 33 | Lake Cascade | 693,100 | 0.8549 | 12.4 | USBR | 1948 |
Cedar Creek Dam | Cedar Creek | Earthfill | 84 | 26 | Cedar Creek Reservoir | 30,000 | 0.037 | 0 | Cedar Mesa Canal & Reservoir Co. | 1920 |
Crane Creek Dam | Crane Creek | Earthfill | 55 | 17 | Crane Creek Reservoir | 56,800 | 0.0701 | ? | Crane Creek Reservoir Administrative Board | 1912 |
Deadwood Dam | Deadwood River | Concrete arch | 165 | 50 | Deadwood Reservoir | 154,000 | 0.190 | 0 | USBR | 1931 |
Dworshak Dam | North Fork Clearwater River | Concrete gravity | 717 | 219 | Dworshak Reservoir | 3,468,000 | 4.278 | 460 | USACE | 1973 |
Fish Creek Dam | Fish Creek | Concrete multiple arch | 88 | 27 | Fish Creek Reservoir | 12,743 | 0.015718 | 0 | Carey Valley Reservoir Co. | 1923 |
Hells Canyon Dam | Snake River | Concrete gravity | 330 | 100 | Hells Canyon Reservoir | 188,000 | 0.232 | 391 | Idaho Power | 1967 |
Island Park Dam | Henrys Fork | Earthfill | 94 | 29 | Island Park Reservoir | 135,205 | 0.166773 | 0 | USBR | 1939 |
Little Camas Dam | Little Camas Creek | Earthfill | 44 | 13 | Little Camas Reservoir | 18,400 | 0.0227 | 0 | Mountain Home Irrigation District | 1912 |
Little Wood River Dam | Little Wood River | Earthfill | 169 | 52 | Little Wood River Reservoir | 33,300 | 0.0411 | 3 | USBR | 1939 |
Lucky Peak Dam | Boise River | Earthfill | 340 | 100 | Lucky Peak Lake | 307,000 | 0.379 | 101 | USACE | 1955 |
Mackay Dam | Big Lost River | Earthfill | 67 | 20 | Mackay Reservoir | 45,000 | 0.056 | 0 | Big Lost River Irrigation District | 1918 |
Magic Dam | Big Wood River | Earthfill | 128 | 39 | Magic Reservoir | 195,000 | 0.241 | 9 | Magic Reservoir Hydroelectric, Inc. | 1910 |
McArthur Lake | Deep Creek | Earthfill | McArthur Lake | Idaho Fish and Game | 1942 | |||||
Milner Dam | Snake River | Rockfill | 73 | 22 | Milner Lake | 36,300 | 0.0448 | 58.3 | Milner Dam, Inc. | 1905 |
Minidoka Dam | Snake River | Earthfill/concrete | 86 | 26 | Lake Walcott | 210,200 | 0.2593 | 28 | USBR | 1906 |
Mormon Dam | McKinney Creek | Earthfill | 23 | 7.0 | Mormon Reservoir | 19,280 | 0.02378 | 0 | Twin Lakes Reservoir & Irrigation Co. | 1908 |
Oakley Dam | Goose Creek | Earthfill | 139 | 42 | Lower Goose Creek Reservoir | 76,000 | 0.094 | 0 | Oakley Canal Co. | 1916 |
Oneida Dam | Bear River | Concrete gravity | 102 | 31 | Oneida Narrows Reservoir | 11,400 | 0.0141 | 30 | PacifiCorp | 1913 |
Paddock Valley Dam | Little Willow Creek | Earthfill | 43 | 13 | Paddock Valley Reservoir | 36,400 | 0.0449 | 0 | Little Willow Irrigation District | 1949 |
Ririe Dam | Willow Creek | Earthfill | 253 | 77 | Ririe Reservoir | 100,500 | 0.1240 | 0 | USBR | 1977 |
Oxbow Dam | Snake River | Rockfill | 175 | 53 | Oxbow Reservoir | 58,200 | 0.0718 | 190 | Idaho Power | 1961 |
Palisades Dam | Snake River | Earthfill | 270 | 82 | Palisades Reservoir | 1,200,000 | 1.5 | 176.5 | USBR | 1957 |
Post Falls Dam | Spokane River | Concrete gravity | 57.8 | 17.6 | Coeur d'Alene Lake | 225,000 | 0.278 | 14.75 | Avista Utilities | 1906 |
Priest Lake Dam | Priest River | Concrete gravity | 8 | 2.4 | Priest Lake | 143,000 | 0.176 | ? | Idaho Department of Water Resources | 1978 |
Sage Hen Dam | Sage Hen Creek | Earthfill | 38 | 12 | Sage Hen Reservoir | 5,210 | 0.00643 | 0 | Squaw Creek Irrigation Company | 1938 |
Salmon Falls Dam | Salmon Falls Creek | Concrete arch | 217 | 66 | Salmon Falls Creek Reservoir | 230,650 | 0.28450 | 0 | Salmon River Canal Co. | 1911 |
The Snake River is a major river of the greater Pacific Northwest region in the United States. At 1,078 miles (1,735 km) long, it is the largest tributary of the Columbia River, in turn the largest North American river that empties into the Pacific Ocean. The Snake River rises in western Wyoming, then flows through the Snake River Plain of southern Idaho, the rugged Hells Canyon on the Oregon–Idaho border and the rolling Palouse Hills of Washington, emptying into the Columbia River at the Tri-Cities in the Columbia Basin of Eastern Washington.
The Pend Oreille River is a tributary of the Columbia River, approximately 130 miles (209 km) long, in northern Idaho and northeastern Washington in the United States, as well as southeastern British Columbia in Canada. In its passage through British Columbia its name is spelled Pend-d'Oreille River. It drains a scenic area of the Rocky Mountains along the U.S.-Canada border on the east side of the Columbia. The river is sometimes defined as the lower part of the Clark Fork, which rises in western Montana. The river drains an area of 66,800 square kilometres (25,792 sq mi), mostly through the Clark Fork and its tributaries in western Montana and including a portion of the Flathead River in southeastern British Columbia. The full drainage basin of the river and its tributaries accounts for 43% of the entire Columbia River Basin above the confluence with the Columbia. The total area of the Pend Oreille basin is just under 10% of the entire 258,000-square-mile (670,000 km2) Columbia Basin. Box Canyon Dam is currently underway on a multimillion-dollar project for a fish ladder.
Lake Pend Oreille in the northern Idaho Panhandle is the largest lake in the U.S. state of Idaho and the 38th-largest lake by area in the United States, with a surface area of 148 square miles (380 km2). It is 43 miles (69 km) long, and 1,150 feet (350 m) deep in some regions, making it the fifth-deepest in the nation and having a Volume: 43,939,940 acre ft= 54 km^3. The lake is fed by the Clark Fork River and the Pack River, and drains into the Pend Oreille River, as well as subsurfacely into the Spokane Valley–Rathdrum Prairie Aquifer. It is surrounded by national forests and a few small towns, with the largest population on the lake at Sandpoint. The majority of the shoreline is non-populated and all but the southern tip of the lake is in Bonner County. The southern tip is in Kootenai County and is home to Farragut State Park, formerly the Farragut Naval Training Station during World War II, of which a small part is still active and conducts U.S. Navy acoustic underwater submarine research.
Lake Coeur d'Alene, officially Coeur d'Alene Lake, is a natural dam-controlled lake in North Idaho, located in the Pacific Northwest region of the United States. At its northern end is the city of Coeur d'Alene. It spans 25 miles (40 km) in length and ranges from 1 to 3 miles (5 km) wide with over 109 miles (175 km) of shoreline.
Lower Granite Lock and Dam is a concrete gravity run-of-the-river dam in the northwest United States. On the lower Snake River in southeastern Washington, it bridges Whitman and Garfield counties. Opened 47 years ago in 1975, the dam is located 22 miles (35 km) south of Colfax and 35 miles (56 km) north of Pomeroy.
Lower Monumental Lock and Dam is a hydroelectric, concrete, run-of-the-river dam in the northwest United States. Located on the Snake River, it bridges Franklin and Walla Walla counties in southeast Washington. It is six miles (10 km) south of Kahlotus and 43 miles (70 km) north of Walla Walla.
Libby Dam is a concrete gravity dam in the northwestern United States, on the Kootenai River in northwestern Montana. Dedicated on August 24, 1975, it is west of the continental divide, seventeen miles (27 km) upstream from the town of Libby.
The Minidoka Dam is an earthfill dam on the Snake River in south central Idaho. The dam, originally completed in 1906, is east of Rupert on county highway 400; it is 86 feet high and nearly a mile (1.6 km) in length, with a 2,400-foot (730 m) wide overflow spillway section. The dam and power plant were listed on the National Register of Historic Places in 1974. Walcott Park, close to the dam, is a popular summertime picnic area. Lake Walcott State Park and the headquarters for the Minidoka National Wildlife Refuge are adjacent to the dam.
The American Falls Dam is a concrete gravity-type dam located near the town of American Falls, Idaho, on river mile 714.7 of the Snake River. The dam and reservoir are a part of the Minidoka Project on the Snake River Plain and are used primarily for flood control, irrigation, and recreation. When the original dam was built by the Bureau of Reclamation, the residents of American Falls were forced to relocate three-quarters of their town to make room for the reservoir. A second dam was completed in 1978 and the original structure was demolished. Although the dam itself is located in Power County, its reservoir also stretches northeastward into both Bingham County and Bannock County.
The Moyie River is a 92-mile (148 km) long tributary of the Kootenai River in the U.S. state of Idaho and the Canadian province of British Columbia. The Moyie River is part of the Columbia River basin, being a tributary of the Kootenay River, which is tributary to the Columbia River.
Milner Dam is a rockfill dam near Burley in south central Idaho. It impounds the Snake River in a reservoir named Milner Lake. The dam spans the river across two islands, with three embankments.
The following is an alphabetical list of articles related to the U.S. state of Idaho.
Lucky Peak Dam is a rolled earth and gravel fill embankment dam in the western United States, located on the Boise River in Ada County, Idaho. It is directly downstream of Arrowrock Dam, a concrete arch dam completed in 1915. At the time of its construction in the early 1950s, Lucky Peak's primary purpose was flood control, with a secondary purpose of irrigation. The normal operating elevation of the full reservoir is 3,055 feet (931 m) above sea level, the empty reservoir's elevation is 2,824 feet (861 m).
Lucky Peak Reservoir is a reservoir on the Boise River in the U.S. state of Idaho. It is located mainly in Ada County, extending into Boise County and Elmore County. It was created in 1955 with the construction of Lucky Peak Dam. Lucky Peak State Park surrounds part of the lake.
The following outline is provided as an overview of and topical guide to the U.S. state of Idaho:
Twin Falls is a waterfall in the western United States, on the Snake River in the Snake River Canyon of south-central Idaho. The falls are located on the border of Jerome and Twin Falls counties, a few miles east of its namesake city, Twin Falls. They are upstream (east) of Pillar Falls and Shoshone Falls and just downstream from Milner Dam.
Lucky Peak State Park is a public recreation area covering a total of 240 acres (97 ha) on and near Lucky Peak Lake approximately ten miles (16 km) east of Boise in Ada County, Idaho. The state park has three units: Discovery Park off State Highway 21, a roadside park for picnicking and fishing in the Boise River; Sandy Point at the base of the Lucky Peak Dam, with sandy beach and calm waters for wading and swimming; and the Spring Shores unit with boat ramps and marina at the northern end of the lake. The park was created in 1956 by agreement with the United States Army Corps of Engineers, following completion of the Lucky Peak Dam. The park is also home to the Lucky Peak Dam Zeolite Occurrence.
Lake Walcott State Park is a public recreation area located near the Minidoka Dam six miles (9.7 km) east of Acequia in Minidoka County, Idaho, United States. The state park encompasses 65 acres (26 ha) on the western shore on Lake Walcott, an 8,000-acre (3,200 ha) impoundment of the Snake River. The Minidoka National Wildlife Refuge adjoins the park and the lake. The park's recreational offerings include disc golf, camping, picnicking, boating, fishing, and water sports.