Army Corps postpones dredging Willamette River

By Scott Learn, The Oregonian, Portland, Ore.

The Army Corps of Engineers has bumped dredging of a potentially hazardous bar in Portland Harbor to next summer, saying resolving environmental concerns pushed the project too close to the Oct. 31 deadline for completing in-water work.

Surveys in June indicated that shoaling on the Post Office Bar reaches across two-thirds of the outbound navigation channel, the Corps’ Portland office said, increasing the chances of vessels running aground or colliding. The bar, 2 miles up the Willamette from its confluence with the Columbia River, was last dredged in 1989.

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