Columbia and Lower Willamette Rivers
The Columbia River begins in the Canadian Rockies in southern British Columbia, flows generally in a southerly direction through eastern and central Washington, then turns west and empties into the Pacific Ocean. The last 300 of its 1,232 miles form the Washington-Oregon boundary.
The Willamette River is 187 miles long and begins in the Coastal and Cascade Ranges of Oregon. It enters the Columbia River about 101 miles from the ocean after flowing through the City of Portland.
The deep draft navigation channel in the Columbia and Lower Willamette Rivers extends from the mouth of the Columbia River upstream to Vancouver, Washington, approximately 105.5 miles, and up the Willamette River to the Broadway Bridge, a distance of 11.6 miles.
AUTHORIZED BY:
Rivers and Harbors Act of 05 JUL 1884.
Project Description:
Columbia and Lower Willamette Rivers project covers 101.6 miles of the Columbia River and 11.6 miles of the Willamette River.
Main Channel from Vancouver, Washington to Portland, Oregon The authorized navigation channel is 600 feet wide and 40 feet deep.
To go to the Columbia and Lower Willamette River Project Page click here.