10 how wide is the columbia river at its widest point Ideas

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is the Columbia River at Its Widest Point?

The Columbia River has a width of 6 miles near its mouth. This location is near the Astoria-Megler Bridge. It lies over the lower part of the Columbia River between Astoria, Oregon, and Megler, Washington.

The Columbia River is North America’s Pacific Northwest’s most prominent. It is also the fourth-largest river in the U.S. by volume. Additionally, it has the greatest flow of any North American river entering the Pacific Ocean.

Follow us as we explore the magnificent and unique Columbia River.

How Does the Width of the Columbia River Vary Along Its Flow?

The Columbia River is approximately 14 miles at its widest point near the Astoria-Megler Bridge.

©iStock.com/JPLDesigns

The width of the Columbia River varies considerably along its 1,243-mile flow. It twists and turns from British Columbia through seven U.S. states. Then, it dumps its massive load into the Pacific Ocean.

This river also varies from one to 14 miles wide between Oregon and Washington alone. Here are some examples of the variations in width to give you a clearer idea of just how much its breadth changes:

  • Astoria-Megler Bridge – 14 miles
  • Lewis and Clark Bridge – 2,722 feet
  • Vancouver-Portland Bridge – 3,538 feet
  • Bonneville Lock and Dam – 2,690 feet
  • Bridge of the Gods – 1,856 feet
  • Hood River Bridge – 4,418 feet
  • The Dalles Bridge – 3,339 feet
  • Biggs Rapids Bridge – 2,567 feet
  • John Day Dam – 7,635 feet
  • Umatilla Bridge – 3,433 feet
  • McNary Dam – 7,365 feet

How Large is the Columbia Basin?

Columbiarivermap
The Columbia River Basin is the size of France.

©Kmusser / CC BY-SA 3.0 – License

Incredibly, the Columbia River has a drainage basin the size of France. It covers 258,000 square miles of waterways and lakes. Further, it supports 14 hydroelectric dams on its journey. Also, this mighty river and its tributaries account for about 219,000 square miles of drainage. This drainage covers one Canadian province and seven U.S. states:

  • Idaho
  • Montana
  • Wyoming
  • Utah
  • Nevada
  • Oregon
  • Washington
  • The Canadian province of British Columbia

The basin’s unique relationships between topography, hydrologic cycles, and human innovation have been the source of much provision. For example, this basin offers the following resources:

  • Precious metals
  • Fertile soils
  • Abundant forests
  • Clean, renewable, low cost and reliable electricity
  • Flood control
  • Irrigation
  • Navigation
  • Recreation
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How Many Tributaries Feed Into this River?

Amazingly, more than 60 significant tributaries and smaller ones feed into the Columbia River. Furthermore, six primary river systems form part of the Columbia River.

Five sub-tributaries are the longest to feed the Columbia River. We categorize them from longest to shortest below:

  1. Snake River System – 1,078 miles
  2. Kootenay River System – 485 miles
  3. Deschutes River System – 252 miles
  4. Yakima River System – 214 miles
  5. Willamette River System – 187 miles

Four of the six sub-tributaries are the largest by discharge volume. We categorize these from highest to lowest below:

  1. Snake – 54,830 cubic feet per second at Ice Harbor Dam
  2. Willamette – 33,010 cubic feet at the Morrison Bridge in downtown Portland
  3. Kootenay – 27,616 cubic feet at Cora Linn Dam near Nelson, British Columbia
  4. Pend Oreille – 26,320 cubic feet at Box Canyon Dam in northern Washington

Why Does the Columbia River Have the Greatest Flow in North America?

Columbia River emits the 36th most voluminous discharge of all the world’s rivers.

©iStock.com/Chaitra Kukanur

And because of its unique flow, Columbia has one of the greatest runoffs in the world. From its headwaters in British Columbia to its abrupt exit into the Pacific, the river drops at about two feet per mile.

This lofty decent causes the Columbia River to empty an enormous 192 million cubic feet of water into the Pacific annually.

Measured by the volume of its flow, the Columbia is the largest river flowing into the Pacific from North America. In fact, Columbia has the 36th greatest discharge of any river in the world.

Why is the Mouth of the Columbia River Dangerous?

Columbia River Mouth
The Columbia Bar is murky and dangerous.

©Little Mountain 5 / CC BY-SA 3.0 – License

The waters of the Columbia can be dangerous and tempestuous at their destination. Because of its downhill flow through mountain ranges, its arrival at the mouth can be dramatic. And the Columbia approaches the ocean at full force. Combined with an abrupt drop and a steep incline to the sea bottom at the Astoria, it causes a watery riot.

Additionally, the Columbia picks up desert sand, volcanic ash, and forest debris along its path. This debris creates an ellipse of mucky sludge at the mouth, forming what is known as the Columbia River bar. The river and ocean fight fiercely over the bar shoving the debris back and forth.

A quote from World’s Most Dangerous by Michael Haglund sums up the situation exceptionally well, “… The Columbia River bar is the most dangerous entrance to a commercial waterway in the world.”

How Does the Columbia River Basin Facilitate Hydropower?

Despite its explosive nature, the Columbia River is an ideal source of renewable, low-cost, reliable electricity. Hydroelectric dams supplied by the Columbia River and its major tributaries produce half of the electricity consumed in the Pacific Northwest.

A harmonious balance between high volume flow and stable canyons makes the Columbia River an ideal power source. Currently, 14 of the 450 dams in the Columbia River basins are used for electricity. 

Why Are There Efforts To Clean up the Columbia River?

Fresh-caught steelhead trout on stones with lure in its mouth
Salmon and steelhead – a legacy of the Columbia River.

©AleksKey/Shutterstock.com

Besides, the Columbia River is home to many fish species. Important ones include the anadromous (migrating) fish. Examples of these are the lamprey, salmon, steelhead, shad, and sturgeon. However, the steelhead and salmon are famous residents of this river. These fish have been a vital part of the river’s ecology and lifeblood of the Pacific Northwest for hundreds of years.

Unfortunately, industry and waste by-products have caused harm to the river’s ecosystem. So, the ‘taming’ of the Columbia River for people has often caused conflict with conservation. Now, several organizations are working toward its clean-up and attempting to restore environmental balance to the long, wide Columbia River.


The Featured Image

railway-track-and-vehicles-road-along-the-columbia-river-in-columbia-picture-id1187986361

© iStock.com/vitpho


About the Author


I’m a freelance writer with more than eight years of content creation experience. My content writing covers diverse genres, and I have a business degree. I am also the proud author of my memoir, My Sub-Lyme Life. This work details the effects of living with undiagnosed infections like rickettsia (like Lyme). By sharing this story, I wish to give others hope and courage in overcoming their life challenges. In my downtime, I value spending time with friends and family.

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Sources
  1. McGill, Available here: https://www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/c/Columbia_River.htm
  2. Oregon Encyclopedia, Available here: https://www.oregonencyclopedia.org/articles/columbia_river/#.YyOHe7TMK3A

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How Wide is the Columbia River at Its Widest Point?

How Wide is the Columbia River at Its Widest Point?

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  • Sumary: How wide is the Columbia River at its widest point? The Columbia River is about 14 miles wide at its broadest near the Astoria-Megler Bridge.

  • Matching Result: The Columbia River has a width of 6 miles near its mouth. This location is near the Astoria-Megler Bridge. It lies over the lower part of …

  • Intro: How Wide is the Columbia River at Its Widest Point? The Columbia River has a width of 6 miles near its mouth. This location is near the Astoria-Megler Bridge. It lies over the lower part of the Columbia River between Astoria, Oregon, and Megler, Washington.The Columbia River is North America’s Pacific Northwest’s…
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Columbia River – Wikipedia

Columbia River - Wikipedia

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  • Sumary: Columbia River from Rowena Crest Viewpoint with Interstate 84 along the right

  • Matching Result: The river is 1,243 miles (2,000 kilometers) long, and its largest tributary is the Snake River.

  • Intro: Columbia River Columbia RiverColumbia River from Rowena Crest Viewpoint with Interstate 84 along the rightColumbia River drainage basinEtymologyCaptain Robert Gray’s ship, Columbia RedivivaNickname(s)Big River, the River of the West, River Oregon[1]Native name Wimahl (Chinook) Nch’i-Wàna (Yakama) swah’netk’qhu (Sinixt)[2] LocationCountryUnited States, CanadaStateWashington, OregonProvinceBritish ColumbiaCitiesRevelstoke, BC, Castlegar, BC, Wenatchee, WA, East Wenatchee, WA, Tri-Cities,…
  • Source: https://en.wikipedia.org/wiki/Columbia_River

Columbia River | Location, Length, History, & Facts – Britannica

Columbia River | Location, Length, History, & Facts - Britannica

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  • Sumary: Columbia River, largest river flowing into the Pacific Ocean from North America. It is exceeded in discharge on the continent only by the Mississippi, St. Lawrence, and Mackenzie rivers. The Columbia is one of…

  • Matching Result: The Columbia flows from its source in Columbia Lake, at an elevation of 2,700 feet (820 metres), in British Columbia near the crest of the Rocky Mountains, to …

  • Intro: Columbia River | Location, Length, History, & Facts Entertainment & Pop Culture Geography & Travel Health & Medicine Lifestyles & Social Issues Literature Philosophy & Religion Politics, Law & Government Science Sports & Recreation Technology Visual Arts World History On This Day in History Quizzes Podcasts Dictionary Biographies Summaries Top…
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How Wide Is The Columbia River At Its Widest Point

How Wide Is The Columbia River At Its Widest Point

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  • Sumary: The Columbia River channel begins at the Columbia River bar and continues five miles upriver at a depth of 55 feet and a width of 2 640 feet. After which it maintains a depth of…

  • Matching Result: The Columbia River channel begins at the Columbia River bar and continues five miles upriver at a depth of 55 feet and a width of 2 640 feet.

  • Intro: How Wide Is The Columbia River At Its Widest Point – Micro B Life The Columbia River channel begins at the Columbia River bar and continues five miles upriver at a depth of 55 feet and a width of 2 640 feet. After which it maintains a depth of 43…
  • Source: https://www.microblife.in/how-wide-is-the-columbia-river-at-its-widest-point/

How wide is the Columbia River? – Answers

How wide is the Columbia River? - Answers

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  • Sumary: The Columbia River navigation channel begins at the Columbia River bar and continues five miles upriver at a depth of 55 feet and a width of 2,640 feet. After which, it…

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  • Intro: How wide is the Columbia River? – AnswersThe Columbia River navigation channel begins at the Columbia River bar and continues five miles upriver at a depth of 55 feet and a width of 2,640 feet. After which, it maintains a depth of 40 feet and a width of 600 feet…
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Columbia River – American Rivers

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  • Sumary: Dam and reservoir operations have fundamentally changed the Columbia River’s natural flows. Here’s what we’re doing to protect and restore the Columbia.

  • Matching Result: The Columbia River Basin covers 258,000 square miles and includes parts of seven states and one Canadian province. In its 1,200 mile course to the ocean, …

  • Intro: Columbia River – American Rivers A map of the Columbia River watershed with the Snake River highlighted in yellow and the Columbia River highlighted in blue The Columbia River Basin covers 258,000 square miles and includes parts of seven states and one Canadian province. In its 1,200 mile course to the…
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Columbia River: Description, Creation, and Discovery

Columbia River: Description, Creation, and Discovery

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  • Matching Result: The total length of the river is about 1,243 miles (about 2,000 kilometers). The drainage basin covers 259,000 square miles (670,810 square kilometers), …

  • Intro: Columbia River: Description, Creation, and DiscoveryDescriptionThe Columbia River, fourth-largest by volume in North America (annual average of 192 million acre-feet at the mouth) begins at Columbia Lake in the Rocky Mountain Trench of southeastern British Columbia at about 2,656 feet above sea level. The geographic coordinates at the head of…
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Frequently Asked Questions About how wide is the columbia river at its widest point

If you have questions that need to be answered about the topic how wide is the columbia river at its widest point, then this section may help you solve it.

The Columbia River’s widest point is where?

Bypass of Astoria-Megler

At its widest, how wide is the Columbia River?

The Columbia River channel runs from the Columbia River bar upstream for five miles at a depth of 55 feet and a width of 2,640 feet, then downstream for 100 miles to Portland Harbor, where it stays at a depth of 43 feet and a width of 600 feet.

What is the Columbia River’s width?

At River Mile 749, or 749 miles (1,205 kilometers) inland from the Pacific Ocean, the river enters Washington after flowing north for about 200 miles (322 kilometers), turning south, and flowing for about 270 miles (434 kilometers).

What depth does the Columbia River’s deepest section reach?

Although depths of up to 300 feet have been measured close to The Dalles, Oregon, and up to 200 feet in the lower river and estuary, the navigable channel depth is kept at 40 feet up to Portland and at 27 feet between Portland and Bonneville Locks.

How high up the Columbia River can ships travel?

Smaller ships can continue up the river about 300 kilometers from the Pacific Ocean, but they must pass through locks. Large ocean-going ships can sail up the lower Columbia River as far as Vancouver, Washington.

What fish in the Columbia River is the largest?

The largest fish in North America, sturgeon can grow up to 12 feet long and weigh up to 800 pounds in the Columbia River. These fish have not changed much in the last 175 million years, giving them the nickname “living fossils.”

How many vessels have sunk at the Columbia River’s mouth?

More than 200 shipwrecks are known to have occurred in the near-shore regions to the north and south of the mouth of the Columbia, and some, like the Peter Iredale, which ran aground on the Oregon shore south of the river in 1906, are still visible today.

At the Columbia River’s mouth, how deep is the water?

Jetties: North Jetty is 2.5 miles long. Channel A (north reach) is 6 miles long, 2,000 feet wide, and 55 feet deep. Channel A (south reach) is 6 miles long, 640 feet wide, and 48 feet deep.

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