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Snake River Navigation Locks Close March 6 for Maintenance by Staff Walla Walla Union-Bulletin, March 1, 2021

The U.S. Army Corps of Engineers Walla Walla district will close navigation locks on Lower Monumental, Little Goose and Lower Granite dams 6 a.m. March 6 for annual inspections, preventative maintenance and repairs, Corps officials announced Monday.

Corps officials anticipate navigation locks on Lower Monumental and Little Goose dams will return to service at 11:59 p.m. March 21 and locks on Lower Granite Dam by 11:59 p.m. March 28.

The district may temporarily suspend public vehicle crossings, according to the release.

Officials recommend travelers in Washington state call 888-326-4636 for dam-crossing information in advance of travel as other navigation locks on the Columbia and Snake rivers will see closures as well.