Navigation channels and harbors

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Phone: 503-808-4510

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Latest News Releases

Columbia River lock schedule begins for recreational boaters

5/15/2024

Recreational boaters passing through the three lower Columbia River dams must follow a summer locking schedule through Sept. 14. Commercial vessels will continue to lock through upon arrival except...

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...

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