Below is information and knowledge on the topic how wide is the columbia river at its widest point gather and compiled by the show.vn team. Along with other related topics like: Columbia River Facts, Where does the Columbia River end, How long is the Columbia River, Where does the Columbia River start and stop, Columbia River Washington, What States does the Columbia River run through, Where is the Columbia River located.
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 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?
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:
- 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
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:
- Snake River System – 1,078 miles
- Kootenay River System – 485 miles
- Deschutes River System – 252 miles
- Yakima River System – 214 miles
- 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:
- Snake – 54,830 cubic feet per second at Ice Harbor Dam
- Willamette – 33,010 cubic feet at the Morrison Bridge in downtown Portland
- Kootenay – 27,616 cubic feet at Cora Linn Dam near Nelson, British Columbia
- 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?
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?
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?
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
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.
Thank you for reading! Have some feedback for us? Contact the AZ Animals editorial team.
- McGill, Available here: https://www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/c/Columbia_River.htm
- Oregon Encyclopedia, Available here: https://www.oregonencyclopedia.org/articles/columbia_river/#.YyOHe7TMK3A
Extra Information About how wide is the columbia river at its widest point That You May Find Interested
If the information we provide above is not enough, you may find more below here.
How Wide is the Columbia River at Its Widest Point?
Columbia River – Wikipedia
Columbia River | Location, Length, History, & Facts – Britannica
How Wide Is The Columbia River At Its Widest Point
How wide is the Columbia River? – Answers
Columbia River – American Rivers
Columbia River: Description, Creation, and Discovery
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.