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Willamette Valley map showing main stem and major tributaries. The Willamette River drains a region of 11,478 square miles (29,730 km 2), which is 12 percent of the total area of Oregon. [4] Bounded by the Coast Range to the west and the Cascade Range to the east, the river basin is about 180 miles (290 km) long and 100 miles (160 km) wide. [13]
High water floods a pathway in Minto Brown Island Park on Thursday, Jan. 14, 2021. High water from rain caused the level of the Willamette River to reach near action levels and caused trails ...
Concerns aren’t nearly as high about additional flooding in the Willamette Valley. The level of the Willamette River in Salem, for example, has been downgraded to about 18 feet while smaller ...
The Willamette River in Salem is forecast to reach about 19 feet, which brings some impact in the Minto Brown Island area. The Willamette River reached nearly 19 feet near the Wheatland Ferry in ...
Flooding just north of downtown Portland in February 1996, viewed looking southeast towards the Steel Bridge An aerial view of the Willamette River's flood. The Willamette Valley flood of 1996 was part of a larger series of floods in the Pacific Northwest of the United States which took place between late January and mid-February 1996.
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]
Extremes outside the period of record include flood maximums during the roughly 110 years before the Morrison Bridge gauge was put in place. The biggest recorded Willamette River flood, the Great Flood of 1861, [27] produced a much larger maximum, 635,000 cubic feet per second (18,000 m 3 /s), in downtown Portland than that of the 1996 flood. [28]
People walk with umbrellas as rain falls in Salem in 2019. Another round of heavy rainfall will hit Oregon over the next few days, but it’s probably not enough to bring flooding, said National ...
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