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Lock Closures Planned on Columbia, Snake Rivers by Associated Press The Oregonian, March 8, 2015

PORTLAND -- The U.S. Army Corps of Engineers says maintenance and repair work will cause closures at all navigation locks at federal dams on the Columbia and Snake rivers in the coming weeks.

The Columbian reports the agency began closing locks at dams this week.

The affected dams include Bonneville, The Dalles, John Day and McNary dams on the Columbia River; and the Ice Harbor, Lower Monumental, Little Goose and Lower Granite dams on the Snake River. The Army Corps owns and operates the structures.

The Corps' Portland District locks -- at Bonneville, The Dalles and John Day -- are scheduled to resume service on March 21. The rest of the locks, in the Walla Walla District, will be closed until April 4.

Public access to the facilities may be affected.