Columbia River dredging expected to begin July 1

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The U.S. Army Corps of Engineers next month will begin dredging at the mouth of the Columbia River near Astoria, Ore., part of annual maintenance work that's expected to continue through this fall.

The Corps carries out dredging and other work on the river each year to keep the federal navigation channel safe for commercial shipping. Operations at the mouth of the river are expected to start by July 1.

Dredging work at the Columbia's mouth should be finished by October, according to the Corps. Work on the rest of the river, as far upstream as river mile 137, east of Camas and Washougal, is expected to wrap up by December.

Commercial and recreational fisherman who have equipment near the mouth of the river can consult the U.S. Coast Guard's Local Notice to Mariners for specific information about dredging and placement locations. The notice is available at http://www.navcen.uscg.gov.