OPB’s Think Out Loud examines how more than 160 years of dredging has reshaped the lower Columbia River’s shipping channel — and its ecosystem.
OPB Article: How dredging has changed the Columbia River’s ecological, economic functions
Port of Portland Article: Dredge Oregon launches 2026 season with a new tender, and for the first time uses renewable diesel
The Port of Portland’s Dredge Oregon launched its 2026 Lower Columbia River dredging season May 29, debuting a new tender — the Cowlitz — and running on R99 renewable diesel for the first time.
DredgeWire Article: Corps Advances Dredging Plan to Accommodate Large Grain Ships on Columbia
The Army Corps has approved a Columbia River dredging project to expand ship turning basins, despite environmental concerns over endangered fish.
Dredge Oregon Launches 2025 Season, Keeping Columbia River Deep and Wide Enough for Ships
The Dredge Oregon has launched its 2025 season on the Columbia River, removing sediment to keep the navigation channel open for commercial vessels and supporting thousands of regional jobs and businesses.