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Middle Fork Willamette River, McKenzie River, Calapooia River, Santiam River, Molalla River, Clackamas River The Willamette River ( / w ɪ ˈ l æ m ɪ t / ⓘ wil- AM -it ) is a major tributary of the Columbia River , accounting for 12 to 15 percent of the Columbia's flow.
In the natural condition of the river, Portland was the farthest point on the river where the water was deep enough to allow ocean-going ships. Rapids further upstream at Clackamas were a hazard to navigation, and all river traffic had to portage around Willamette Falls, where Oregon City had been established as the first major town inland from Astoria.
The Willamette River in the northern section of the valley. The Willamette Valley is prone to periodic floods. Notable floods include the Great Flood of 1862, events in 1899, the Christmas flood of 1964, and the Willamette Valley flood of 1996. Part of its floodplain is a National Natural Landmark called the Willamette Floodplain.
Historic ferries in Oregon are water transport ferries that operated in Oregon Country, Oregon Territory, and the state of Oregon, United States.These ferries allowed people to cross bodies of water, mainly rivers such as the Willamette in the Willamette Valley, and the Columbia, in order to transport goods, move people, and further communications until permanent bridges were built to allow ...
Considered a 100-year flood, [2] it was the worst flood in recorded history on nearly every major stream and river in coastal Northern California and one of the worst to affect the Willamette River in Oregon. It also affected parts of southwest Washington, Idaho, and Nevada. [1] [3]
At the Willamette's source, the confluence of the two forks, Dorris Ranch Living History Farm [] is on the right and Franklin Boulevard is on the left. Interstate 5 (I-5), co-terminous with Oregon Route 99 (Pacific Highway), is also on the left bank slightly further from the river than Franklin Boulevard.
The falls is a horseshoe-shaped, block waterfall caused by a basalt shelf in the river floor. The 40 ft (12 m) high and 1500 ft (457 m) wide falls occur 26 river miles (42 km) upstream from the Willamette's confluence with the Columbia River. Operated by the U.S. Army Corps of Engineers, the lock was a four lock canal and was the oldest ...
View history; Tools. ... This is a list of bridges and other crossings of the Willamette River in the U.S. state of Oregon from the Columbia River upstream to the ...