Closure of Dalles Navigation Lock, Columbia River

Thursday, October 01, 2009

On Sept. 30, Coast Guard Sector Portland, Ore. reported that it is monitoring and managing vessel traffic on the Columbia River east of Portland/Vancouver, Wash., due to the closure of the Dalles Dam lock in Dalles, Ore.

The U.S. Army Corps of Engineers (USACE) has temporarily closed the lock due to structural irregularities detected in the downstream gate.  An assessment is being made to determine if repairs are needed.

The Dam is located at Columbia River Mile 192, above Portland, and serves the eastern and upper Columbia River.  The closure will impact marine traffic that normally travels through the dam.  Deep draft shipping traffic downriver from the dam in the Portland/Vancouver area remains unaffected.


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