Navigation channels and harbors

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Phone: 503-808-4510

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Latest News Releases

Road NF-1993 across Cougar Dam closed this summer for construction

4/15/2024

The U.S. Army Corps of Engineers (USACE) will close both lanes of Road NF-1993 across Cougar Dam, Apr. 15 to Sept. 30...

Road NF-1993 across Cougar Dam closed for construction

3/13/2024

The U.S. Army Corps of Engineers (USACE) will close both lanes of Road NF-1993 across Cougar Dam, Mar. 18 from 7:00 a.m. to 5:00 p.m...

Columbia River locks shut down for annual maintenance

2/1/2024

The $23 billion of commerce that flows along the Columbia River will pause for two weeks beginning March 2 as the U.S. Army Corps of Engineers (USACE), Portland District closes three navigation locks...

Channels

Columbia - Lower Willamette
Old Mouth of the Cowlitz River
Vancouver to The Dalles
Wahkiakum Ferry
Westport Slough

Related ...

USACE Navigation Data Center
U.S. Coast Guard Navigation Center
U.S. Coast Guard 13th District
USGS: current Oregon streamflows
USGS real-time hydrologic data
USGS: Coastal circulation, sediment
National Ocean Service
National Data Buoy Center
Tillamook Bay National Estuary
National Estuary Program
Navigation Information Connection
Institute for Water Resources
Order waterways system fact cards
Dredge operations: research, env.
West Coast wave data
Waterways experiment station