Willamette River depth map (nautical chart)The marine chart shows water depth and hydrology on an interactive map. The source is the confluence of the Middle Fork Willamette and Coast Willamette rivers. The mouth of is the Columbia River. The depth map made from Portland to Newberg.
187 mi (301 km)
11,478 sq mi (29,730 km2)
Portland, Eugene, Newberg, Corvallis, Salem, Albany, Independence, Wilsonville