There are more than 60 dams in the

Columbia River The Columbia River ( Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia ...

watershed in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

and

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...

. Tributaries of the Columbia River and their dammed tributaries, as well as the main stem itself, each have their own list below. The dams are listed in the order as they are found from source to terminus. Many of the dams in the Columbia River watershed were not created for the specific purposes of water storage or

flood protection Flood control methods are used to reduce or prevent the detrimental effects of flood waters."Flood Control", MSN Encarta, 2008 (see below: Further reading). Flood relief methods are used to reduce the effects of flood waters or high water levels ...

. Instead, the primary purpose of many of these dams is to produce

hydroelectricity Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined an ...

. As can be seen in the lists, these dams provide many tens of

gigawatt The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Wat ...

s of power. Major dam construction began in the early 20th century and picked up the pace after the

Columbia River Treaty The Columbia River Treaty is a 1961 agreement between Canada and the United States on the development and operation of dams in the upper Columbia River basin for power and flood control benefits in both countries. Four dams were constructed under ...

in the 1960s, by the mid 1980s all the big dams were finished. Including just the dams listed below, there are 60 dams in the watershed, with 14 on the Columbia, 20 on the

Snake Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes . Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more ...

, seven on the Kootenay, seven on the Pend Oreille /

Clark Clark is an English language surname, ultimately derived from the Latin language, Latin with historical links to England, Scotland, and Ireland ''clericus'' meaning "scribe", "secretary" or a scholar within a religious order, referring to someone ...

, two on the Flathead, eight on the Yakima, and two on the Owyhee. Averaging a major dam every , the rivers in the Columbia watershed combine to generate over 36,000

megawatts The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Wat ...

of power, with the majority coming on the main stem.

Grand Coulee Dam Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerho ...

is the largest producer of hydroelectric power in the United States, generating 6,809 megawatts, over one-sixth of all power in the basin. In addition to providing ample power for the people of the

Pacific Northwest The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Thou ...

, the reservoirs created by the dams have created numerous recreational opportunities, including fishing, boating, and

windsurfing Windsurfing is a wind propelled water sport that is a combination of sailing and surfing. It is also referred to as "sailboarding" and "boardsailing", and emerged in the late 1960s from the aerospace and surf culture of California. Windsurfing ga ...

. Furthermore, by creating a constant flow and consistent depth along the river channel, the series of locks and dams have allowed for

Lewiston, Idaho Lewiston is a city and the county seat of Nez Perce County, Idaho, United States, in the state's north central region. It is the second-largest city in the northern Idaho region, behind Coeur d'Alene, and ninth-largest in the state. Lewiston is ...

, to become the furthest inland

seaport A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as ...

on the west coast of the United States. Despite the numerous benefits to humans that the dams have provided, a number of environmental consequences have manifested as a result of the dams, including a negative impact on salmonid populations of the basin. The organization of the following lists begins with the Columbia River dams and is followed by dams on its tributaries (in order of length) and their respective watersheds. Additionally, the table of contents below is indented to indicate tributary status of each river.

Main stem
Columbia River The Columbia River ( Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia ...
dams

Dams are listed in order from

headwater The headwaters of a river or stream is the farthest place in that river or stream from its estuary or downstream confluence with another river, as measured along the course of the river. It is also known as a river's source. Definition The ...

( Columbia Lake, BC) to mouth (

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the conti ...

, OR/WA).

Snake River The Snake River is a major river of the greater Pacific Northwest region in the United States. At 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 ...
dams

Dams are listed in order from

( Two Oceans Plateau, WY) to mouth Columbia River, WA.

Salmon River dams

= Little Salmon River dams

= Dams are listed in order from headwater (north West Mountain, ID) to mouth (Salmon River, ID)

Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of the l ...
dams

Dams are listed in order from headwater (near Double Mountain, NV) to mouth (Snake River, OR/ID)

=
South Fork Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of t ...
dams

= Dams are listed in order from headwater (north Tuscarora Mountains, NV) to mouth (Owyhee River, ID)

Malheur River The Malheur River (local pronunciation: "MAL-hyure") is a tributary of the Snake River in eastern Oregon in the United States. It drains a high desert area, between the Harney Basin and the Blue Mountains and the Snake. Despite the similari ...
dams

Dams are listed in order from headwater (Logan Valley, OR) to mouth (Snake River, OR/ID)

Grande Ronde River dams

=
Wallowa River The Wallowa River is a tributary of the Grande Ronde River, approximately long, in northeastern Oregon in the United States. It drains a valley on the Columbia Plateau in the northeast corner of the state north of Wallowa Mountains. The Wallowa ...
dams

= Dams are listed in order from headwater (near Pete's Point,

Eagle Cap Wilderness Eagle Cap Wilderness is a wilderness area located in the Wallowa Mountains of northeastern Oregon (United States), within the Wallowa–Whitman National Forest.

, OR) to mouth (Grande Ronde River, OR)

Powder River dams

Dams are listed in order from headwater (confluence of McCully Fork and Cracker Creek, OR) to mouth (Snake River, OR/ID)

Blackfoot River dams

Dams are listed in order from headwater (confluence of Diamond and Lanes Creeks, ID) to mouth (Snake River, ID)

Henrys Fork dams

Dams are listed in order from headwater (

Henrys Lake Henrys Lake is a small, shallow alpine lake in the western United States, in eastern Idaho. Approximately in area, at in length and in width, its surface elevation is above sea level. It is on the southwest side of the Henrys Lake Mountains ...

, ID) to mouth (Snake River, ID)

=
Fall River Fall River is a city in Bristol County, Massachusetts, Bristol County, Massachusetts, United States. The City of Fall River's population was 94,000 at the 2020 United States census, 2020 United States Census, making it the List of municipaliti ...
dams

= Dams are listed in order from headwater ( Pitchstone Plateau, WY) to mouth (Henrys Fork, ID)

Portneuf River dams

Dams are listed in order from headwater (southeast of Higham Peak, ID) to mouth (Snake River, ID)

Salmon Falls Creek Salmon Falls Creek is a tributary of the Snake River, flowing from northern Nevada into Idaho in the United States. Formed in high mountains at the northern edge of the Great Basin, Salmon Falls Creek flows northwards ,U.S. Geological Survey. ...
dams

Dams are listed in order from headwater (

Jarbidge Mountains The Jarbidge Mountains are a mountain range in northern Elko County, Nevada, United States. The range includes multiple sub-ranges, including the Bruneau Range, Buck Creek Mountains, Copper Mountains, Elk Mountains, Fox Creek Range, Ichabod ...

, NV) to mouth (Snake River, ID)

Boise River The Boise River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. , accessed May 3, 2011 tributary of the Snake River in the Northwestern United States. It drains a rugged portion of the Sawtooth Range in sou ...
dams

Dams are listed in order from headwater (confluence of North and Middle Forks Boise River, ID) to mouth (Snake River, ID/OR)

= South Fork Boise River dams

= Dams are listed in order from headwater (confluence of Ross Fork and Johnson Creek, ID) to mouth (Boise River, ID)

Goose Creek dams

Dams are listed in order from headwater (near Monument Peak, ID) to mouth (Snake River, ID)

Weiser River dams

Dams are listed in order from headwater (near Brush Mountain, ID) to mouth (Snake River, ID/OR)

Burnt River dams

Dams are listed in order from headwater (confluence of North and South Fork Burnt Rivers, OR) to mouth (Snake River, OR/ID)

Willow Creek dams

Dams are listed in order from headwater ( Blackfoot Mountains, ID) to mouth (Snake River, ID)

Payette River dams

Dams are listed in order from headwater (confluence of South and Middle Forks Payette River, ID) to mouth (Snake River, ID/OR)

= North Fork Payette River dams

= Dams are listed in order from headwater (Squaw Meadows, ID) to mouth (Payette River, ID)

=
South Fork Payette River The Payette River () is an U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed May 3, 2011 river in southwestern Idaho and is a major tributary of the Snake River. Its headwaters originat ...
dams

= Dams are listed in order from headwater (near

Vernon Lake Vernon Lake is a man-made lake in Vernon Parish, Louisiana. In 1963, Vernon Lake was created by the impounding of Anacoco Creek (Anacoco Bayou), creating a lake for the purpose of water supply and recreation. The lake is five miles west of Lees ...

, ID) to mouth (Payette River, ID)

Clearwater River dams

=
North Fork Clearwater River The North Fork Clearwater River is a major tributary of the Clearwater River in the U.S. state of Idaho. From its headwaters in the Bitterroot Mountains of eastern Idaho, it flows U.S. Geological Survey. National Hydrography Dataset high-resoluti ...
dams

= Dams are listed in order from headwater (near Illinois Peak, ID/MT) to mouth (Clearwater River, ID)

Malad River dams

=
Big Wood River The Big Wood River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. , accessed May 4, 2011 river in central Idaho, United States, that is a tributary of the Malad River (which in turn is tributary to the ...
dams

= Dams are listed in order from headwater (near Galena Summit, ID) to mouth (Malad River, ID)

Camas Creek

Dams are listed in order from headwater (near Packer Butte, ID) to mouth (Big Wood River, ID)

= Little Wood River dams

= Dams are listed in order from headwater (

Standhope Peak Standhope Peak, at above sea level is the fourth highest peak in the Pioneer Mountains of Idaho. The peak is located in Salmon-Challis National Forest and Custer County. It is the 20th highest peak in Idaho and about northeast of Peak 11,887 ...

, ID) to mouth (Malad River, ID)

Kootenay River The Kootenay or Kootenai river is a major river in the Northwest Plateau, in southeastern British Columbia, Canada, and northern Montana and Idaho in the United States. It is one of the uppermost major tributary, tributaries of the Columbia Ri ...
dams

Dams are listed in order from headwater (near

Castle Mountain Castle Mountain ( bla, Miistukskoowa) is a mountain located within Banff National Park in the Canadian Rockies, approximately halfway between Banff and Lake Louise. It is the easternmost mountain of the Main Ranges in the Bow Valley and sits ...

Beaverfoot Range The Beaverfoot Range () is a mountain range of the Canadian Rockies, located in southeastern British Columbia. The range extends from Cedared Creek near Spillimacheen north to the Kicking Horse River The Kicking Horse River is in the Canadian ...

, BC) to mouth (Columbia River, BC).

Bull River dams

Dams are listed in order from headwater (

Canadian Rockies The Canadian Rockies (french: Rocheuses canadiennes) or Canadian Rocky Mountains, comprising both the Alberta Rockies and the British Columbian Rockies, is the Canadian segment of the North American Rocky Mountains. It is the easternmost part ...

) to mouth (Kootenay River, BC).

Elk River dams

Dams are listed in order from headwater ( Upper Elk Lake) to mouth (Kootenay River, BC).

Duncan River dams

Dams are listed in order from headwater (near Mount Dawson) to mouth (Kootenay River, BC).

Mark Creek dams

Dams are listed in order from headwater (

Purcell Mountains The Purcell Mountains are a mountain range in southeastern British Columbia, Canada. They are a subrange of the Columbia Mountains, which includes the Selkirk, Monashee, and Cariboo Mountains. They are located on the west side of the Rocky Moun ...

) to mouth (Kootenay River, BC).

Pend Oreille River The Pend Oreille River ( ) is a tributary of the Columbia River, approximately long, in northern Idaho and northeastern Washington in the United States, as well as southeastern British Columbia in Canada. In its passage through British Columbi ...
/
Clark Fork River The Clark Fork, or the Clark Fork of the Columbia River, is a river in the U.S. states of Montana and Idaho, approximately long. The largest river by volume in Montana, it drains an extensive region of the Rocky Mountains in western Montana and ...
dams

Dams are listed in order from headwater of Clark Fork River (

Silver Bow Creek Silver Bow Creek is a headwater stream of the Clark Fork (river) originating within the city limits of Butte, Montana, from the confluence of Little Basin and Blacktail Creeks. A former northern tributary, Yankee Doodle Creek, no longer flows d ...

, MT) to mouth of Pend Oreille River (Columbia River, BC).

Flathead River The Flathead River ( fla, label= Salish, člq̓etkʷ ntx̣ʷetkʷ, , kut, kananmituk), in the northwestern part of the U.S. state of Montana, originates in the Canadian Rockies to the north of Glacier National Park and flows southwest into Fla ...
dams

Dams are listed in order from headwater (Confluence of North Fork and Middle Fork Flathead River) to mouth (

Clark Fork River The Clark Fork, or the Clark Fork of the Columbia River, is a river in the U.S. states of Montana and Idaho, approximately long. The largest river by volume in Montana, it drains an extensive region of the Rocky Mountains in western Montana and ...

Deschutes River Deschutes River may refer to: *Deschutes River (Oregon) **Little Deschutes River (Oregon), a tributary of the Deschutes River in Oregon *Deschutes River (Washington) The Deschutes River is a river in the U.S. state of Washington. Its headwater ...
dams

Dams are listed in order from headwater ( Little Lava Lake, OR) to mouth (

, WA/OR).

Yakima River dams

Dams are listed in order from headwater (

Keechelus Lake Keechelus Lake () is a lake and reservoir in the northwest United States, near Hyak in Kittitas County, Washington. Approximately southeast of Seattle and a few miles southeast of Snoqualmie Pass, it is the source of the Yakima River. Keechelu ...

, WA) to mouth (

, WA).

Cle Elum River dams

Dams are listed in order from headwaters (near

Mount Daniel Mount Daniel is the highest summit on the Cascade Range crest of Alpine Lakes Wilderness of the central Washington, USA. It is the highest point in King and Kittitas counties. Streams on its eastern slopes form the headwaters of the Cle Elum ...

, WA) to mouth ( Yakima River, WA).

Kachess River Kachess River is a tributary of the Yakima River, in the U.S. state of Washington. From its source on Chickamin Ridge in the Alpine Lakes Wilderness region of the Cascade Range, the Kachess River flows south into Kachess Lake, a natural lake regu ...
dams

Dams are listed in order from headwaters (Three Queens, WA) to mouth ( Yakima River, WA).

Naches River The Naches River is a tributary of the Yakima River in central Washington in the United States. Beginning as the Little Naches River, it is about 75 miles (121 km) long. After the confluence of the Little Naches and Bumping River the name b ...
dams

= Bumping River dams

= Dams are listed in order from headwaters (near Crag Mountain, WA) to mouth (

Naches River The Naches River is a tributary of the Yakima River in central Washington in the United States. Beginning as the Little Naches River, it is about 75 miles (121 km) long. After the confluence of the Little Naches and Bumping River the name b ...

, WA).

= Tieton River dams

= Dams are listed in order from headwaters ( Goat Rocks, WA) to mouth (

, WA).

Willamette River The Willamette River ( ) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States. Flowing northward b ...
dams

Dams are listed in order from headwaters (Confluence of

Middle Fork Willamette River The Middle Fork Willamette River is one of several forks that unite to form the Willamette River in the western part of the U.S. state of Oregon. It is approximately long, draining an area of the Cascade Range southeast of Eugene, which is at ...

and Coast Fork Willamette River, OR/WA) to mouth (Columbia River, OR)

Santiam River dams

Dams are listed in order from headwaters (confluence of North Santiam and South Santiam rivers) to mouth (Willamette River, OR).

Middle Fork Willamette River The Middle Fork Willamette River is one of several forks that unite to form the Willamette River in the western part of the U.S. state of Oregon. It is approximately long, draining an area of the Cascade Range southeast of Eugene, which is at ...
dams

Dams are listed in order from headwater (Timpanogas Lake, OR) to mouth (Willamette River, OR).

McKenzie River dams

Dams are listed in order from headwater ( Clear Lake, OR) to mouth (Willamette River, OR).

Coast Fork Willamette River dams

Dams are listed in order from headwater (Confluence of Big River and

Garoutte Creek Garoutte Creek is a tributary of the Little River in the U.S. state of Oregon. Rising along the Calapooya Divide near the border between Lane and Douglas counties, it flows generally northeast to meet the larger stream near Black Butte. The butte ...

, OR) to mouth (Willamette River).

Spokane River The Spokane River is a tributary of the Columbia River, approximately long, in northern Idaho and eastern Washington in the United States. It drains a low mountainous area east of the Columbia, passing through the Spokane Valley and the city of ...
dams

Dams are listed in order from headwater (

Lake Coeur d'Alene 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 in length and rang ...

, ID) to mouth (Columbia River, WA).

Cowlitz River The Cowlitz River is a river in the state of Washington in the United States, a tributary of the Columbia River. Its tributaries drain a large region including the slopes of Mount Rainier, Mount Adams, and Mount St. Helens. The Cowlitz has a d ...
dams

Dams are listed in order from headwater (confluence of the

Ohanapecosh River The Ohanapecosh River ( ) (spelled as áwxanapayk-ash in the language of the Yakima Nation and Cowlitz Tribe) is a river in the U.S. state of Washington. It is the main headwater tributary of the Cowlitz River, which begins at the confluence of ...

and the Clear Fork of the Cowlitz River, WA) to mouth (Columbia River, WA)

Lewis River dams

Dams are listed in order from headwater ( Adams Glacier, Mount Adams, WA) to mouth (Columbia River, WA)

Spillimacheen River dams

Dams are listed in order from headwater (

) to mouth (Columbia River, BC).

Wenatchee River The Wenatchee River is a river in the U.S. state of Washington, originating at Lake Wenatchee and flowing southeast for , emptying into the Columbia River immediately north of Wenatchee, Washington. On its way it passes the towns of Plain, Leave ...
dams

Dams are listed in order from headwater ( Lake Wenatchee, WA) to mouth (Columbia River, WA)

Chelan River The Chelan River is a tributary of the Columbia River, in the U.S. state of Washington. Just long, it is the shortest river in Washington. Lake Chelan Dam is located at the river's source: the outlet of Lake Chelan. Nearly the entire river's fl ...
dams

Dams are listed in order from headwater (

Lake Chelan Lake Chelan ( ) is a narrow, long lake in Chelan County, north-central Washington state, U.S. Before 1927, it was the largest natural lake in the state by any measure. Upon the completion of Lake Chelan Dam in 1927, the elevation of the lake w ...

, WA) to mouth (Columbia River, WA)

Notes

References

External links

* {{DEFAULTSORT:Dams in the Columbia River watershed *

Hydroelectric power stations in British Columbia Hydroelectric power plants in Oregon * Dams in the Columbia River watershed Dams in the Columbia River watershed Dams in the Columbia River watershed Dams in the Columbia River watershed

Dams A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...

Columbia dams

Main stem Columbia River The Columbia River ( Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia ... dams

Snake River The Snake River is a major river of the greater Pacific Northwest region in the United States. At 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 ... dams

Salmon River dams

= Little Salmon River dams

Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of the l ... dams

=South Fork Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of t ... dams

Malheur River The Malheur River (local pronunciation: "MAL-hyure") is a tributary of the Snake River in eastern Oregon in the United States. It drains a high desert area, between the Harney Basin and the Blue Mountains and the Snake. Despite the similari ... dams

Grande Ronde River dams

=Wallowa River The Wallowa River is a tributary of the Grande Ronde River, approximately long, in northeastern Oregon in the United States. It drains a valley on the Columbia Plateau in the northeast corner of the state north of Wallowa Mountains. The Wallowa ... dams

Powder River dams

Blackfoot River dams

Henrys Fork dams

=Fall River Fall River is a city in Bristol County, Massachusetts, Bristol County, Massachusetts, United States. The City of Fall River's population was 94,000 at the 2020 United States census, 2020 United States Census, making it the List of municipaliti ... dams

Portneuf River dams

Salmon Falls Creek Salmon Falls Creek is a tributary of the Snake River, flowing from northern Nevada into Idaho in the United States. Formed in high mountains at the northern edge of the Great Basin, Salmon Falls Creek flows northwards ,U.S. Geological Survey. ... dams

Boise River The Boise River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. , accessed May 3, 2011 tributary of the Snake River in the Northwestern United States. It drains a rugged portion of the Sawtooth Range in sou ... dams

= South Fork Boise River dams

Goose Creek dams

Weiser River dams

Burnt River dams

Willow Creek dams

Payette River dams

= North Fork Payette River dams

=South Fork Payette River The Payette River () is an U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed May 3, 2011 river in southwestern Idaho and is a major tributary of the Snake River. Its headwaters originat ... dams

Clearwater River dams

=North Fork Clearwater River The North Fork Clearwater River is a major tributary of the Clearwater River in the U.S. state of Idaho. From its headwaters in the Bitterroot Mountains of eastern Idaho, it flows U.S. Geological Survey. National Hydrography Dataset high-resoluti ... dams

Malad River dams

=Big Wood River The Big Wood River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. , accessed May 4, 2011 river in central Idaho, United States, that is a tributary of the Malad River (which in turn is tributary to the ... dams

= Little Wood River dams

Kootenay River The Kootenay or Kootenai river is a major river in the Northwest Plateau, in southeastern British Columbia, Canada, and northern Montana and Idaho in the United States. It is one of the uppermost major tributary, tributaries of the Columbia Ri ... dams

Bull River dams

Elk River dams

Duncan River dams

Mark Creek dams

Flathead River The Flathead River ( fla, label= Salish, člq̓etkʷ ntx̣ʷetkʷ, , kut, kananmituk), in the northwestern part of the U.S. state of Montana, originates in the Canadian Rockies to the north of Glacier National Park and flows southwest into Fla ... dams

Deschutes River Deschutes River may refer to: *Deschutes River (Oregon) **Little Deschutes River (Oregon), a tributary of the Deschutes River in Oregon *Deschutes River (Washington) The Deschutes River is a river in the U.S. state of Washington. Its headwater ... dams

Yakima River dams

Cle Elum River dams

Kachess River Kachess River is a tributary of the Yakima River, in the U.S. state of Washington. From its source on Chickamin Ridge in the Alpine Lakes Wilderness region of the Cascade Range, the Kachess River flows south into Kachess Lake, a natural lake regu ... dams

Naches River The Naches River is a tributary of the Yakima River in central Washington in the United States. Beginning as the Little Naches River, it is about 75 miles (121 km) long. After the confluence of the Little Naches and Bumping River the name b ... dams

= Bumping River dams

= Tieton River dams

Willamette River The Willamette River ( ) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States. Flowing northward b ... dams

Santiam River dams

Middle Fork Willamette River The Middle Fork Willamette River is one of several forks that unite to form the Willamette River in the western part of the U.S. state of Oregon. It is approximately long, draining an area of the Cascade Range southeast of Eugene, which is at ... dams

McKenzie River dams

Coast Fork Willamette River dams

Spokane River The Spokane River is a tributary of the Columbia River, approximately long, in northern Idaho and eastern Washington in the United States. It drains a low mountainous area east of the Columbia, passing through the Spokane Valley and the city of ... dams

Cowlitz River The Cowlitz River is a river in the state of Washington in the United States, a tributary of the Columbia River. Its tributaries drain a large region including the slopes of Mount Rainier, Mount Adams, and Mount St. Helens. The Cowlitz has a d ... dams

Lewis River dams

Spillimacheen River dams

Wenatchee River The Wenatchee River is a river in the U.S. state of Washington, originating at Lake Wenatchee and flowing southeast for , emptying into the Columbia River immediately north of Wenatchee, Washington. On its way it passes the towns of Plain, Leave ... dams

Chelan River The Chelan River is a tributary of the Columbia River, in the U.S. state of Washington. Just long, it is the shortest river in Washington. Lake Chelan Dam is located at the river's source: the outlet of Lake Chelan. Nearly the entire river's fl ... dams

See also

Notes

References

External links

Main stem
Columbia River The Columbia River ( Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia ...
dams

Snake River The Snake River is a major river of the greater Pacific Northwest region in the United States. At 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 ...
dams

Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of the l ...
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South Fork Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of t ...
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Malheur River The Malheur River (local pronunciation: "MAL-hyure") is a tributary of the Snake River in eastern Oregon in the United States. It drains a high desert area, between the Harney Basin and the Blue Mountains and the Snake. Despite the similari ...
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Wallowa River The Wallowa River is a tributary of the Grande Ronde River, approximately long, in northeastern Oregon in the United States. It drains a valley on the Columbia Plateau in the northeast corner of the state north of Wallowa Mountains. The Wallowa ...
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Fall River Fall River is a city in Bristol County, Massachusetts, Bristol County, Massachusetts, United States. The City of Fall River's population was 94,000 at the 2020 United States census, 2020 United States Census, making it the List of municipaliti ...
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Salmon Falls Creek Salmon Falls Creek is a tributary of the Snake River, flowing from northern Nevada into Idaho in the United States. Formed in high mountains at the northern edge of the Great Basin, Salmon Falls Creek flows northwards ,U.S. Geological Survey. ...
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Boise River The Boise River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. , accessed May 3, 2011 tributary of the Snake River in the Northwestern United States. It drains a rugged portion of the Sawtooth Range in sou ...
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South Fork Payette River The Payette River () is an U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed May 3, 2011 river in southwestern Idaho and is a major tributary of the Snake River. Its headwaters originat ...
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North Fork Clearwater River The North Fork Clearwater River is a major tributary of the Clearwater River in the U.S. state of Idaho. From its headwaters in the Bitterroot Mountains of eastern Idaho, it flows U.S. Geological Survey. National Hydrography Dataset high-resoluti ...
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Big Wood River The Big Wood River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. , accessed May 4, 2011 river in central Idaho, United States, that is a tributary of the Malad River (which in turn is tributary to the ...
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Kootenay River The Kootenay or Kootenai river is a major river in the Northwest Plateau, in southeastern British Columbia, Canada, and northern Montana and Idaho in the United States. It is one of the uppermost major tributary, tributaries of the Columbia Ri ...
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Flathead River The Flathead River ( fla, label= Salish, člq̓etkʷ ntx̣ʷetkʷ, , kut, kananmituk), in the northwestern part of the U.S. state of Montana, originates in the Canadian Rockies to the north of Glacier National Park and flows southwest into Fla ...
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Deschutes River Deschutes River may refer to: *Deschutes River (Oregon) **Little Deschutes River (Oregon), a tributary of the Deschutes River in Oregon *Deschutes River (Washington) The Deschutes River is a river in the U.S. state of Washington. Its headwater ...
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Kachess River Kachess River is a tributary of the Yakima River, in the U.S. state of Washington. From its source on Chickamin Ridge in the Alpine Lakes Wilderness region of the Cascade Range, the Kachess River flows south into Kachess Lake, a natural lake regu ...
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Naches River The Naches River is a tributary of the Yakima River in central Washington in the United States. Beginning as the Little Naches River, it is about 75 miles (121 km) long. After the confluence of the Little Naches and Bumping River the name b ...
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Willamette River The Willamette River ( ) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States. Flowing northward b ...
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Middle Fork Willamette River The Middle Fork Willamette River is one of several forks that unite to form the Willamette River in the western part of the U.S. state of Oregon. It is approximately long, draining an area of the Cascade Range southeast of Eugene, which is at ...
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Spokane River The Spokane River is a tributary of the Columbia River, approximately long, in northern Idaho and eastern Washington in the United States. It drains a low mountainous area east of the Columbia, passing through the Spokane Valley and the city of ...
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Cowlitz River The Cowlitz River is a river in the state of Washington in the United States, a tributary of the Columbia River. Its tributaries drain a large region including the slopes of Mount Rainier, Mount Adams, and Mount St. Helens. The Cowlitz has a d ...
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Wenatchee River The Wenatchee River is a river in the U.S. state of Washington, originating at Lake Wenatchee and flowing southeast for , emptying into the Columbia River immediately north of Wenatchee, Washington. On its way it passes the towns of Plain, Leave ...
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Chelan River The Chelan River is a tributary of the Columbia River, in the U.S. state of Washington. Just long, it is the shortest river in Washington. Lake Chelan Dam is located at the river's source: the outlet of Lake Chelan. Nearly the entire river's fl ...
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