Columbia and Snake river navigation locks will close March 6 for annual maintenance
The U.S. Army Corps of Engineers’ Portland and Walla Walla districts will close all Corps navigation locks on the Columbia and Snake rivers March 6 at 6 a.m. for regularly-scheduled annual inspections, preventative maintenance and repairs.

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Photo by: hannah mitchell |  VIRIN: 210301-A-QM295-0002.JPG