Columbia-Snake River Locks Close for Maintenance
View SourceColumbia-Snake River Locks Close for Maintenance. The Walla Walla (WA) District of the U.S. Army Corps of Engineers’ (USACE) will close its locks from March 8 to March 29, 2025, for annual maintenance. The Walla Walla District will perform unwatering of the locks at McNary, Ice Harbor, Little Goose, and Lower Granite; annual inspections of the hydraulic structures of the dams at the Ice Harbor and McNary Locks; and routine maintenance of mechanical equipment of all the district’s locks. Year to date (through November), 2.9 million tons of wheat have moved through the McNary Lock on the Snake River—80 percent of the total moved through the locks on the Columbia-Snake River System export (GTR table 12).
