Annual Snake and Columbia lock closures start Friday

Maintenance work will put most of the passages on ice for about two weeks.

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WALLA WALLA -- Maintenance work will close navigation locks on the Columbia and Snake River dams starting Friday.

Navigation locks at the dams, operated by the U.S. Army Corps of Engineers, will be undergoing annual inspections and repairs. The closures are coordinated with inland shippers and cruise lines to minimize impact to the various industries that use the navigation locks.

Navigation locks on the Bonneville, The Dalles, John Day and McNary dams on the Columbia River will reopen on March 21. The navigation locks at Little Goose and Lower Granite dams on the Snake River will reopen on the same day.

Vehicle crossings at Little Goose and Lower Granite will remain open during the month, but drivers should check crossing schedules in advance in case repair work requires a closure.

The navigation locks at Ice Harbor and Lower Monumental dams will reopen March 29, according to a release from the Corps' Walla Walla District Office. The additional week is needed to replace an upstream tainter gate anchor bolt at Ice Harbor and perform navigation lock repairs at Lower Monumental.

The vehicle crossing at Lower Monumental will be closed during the month because of heavy equipment on the roadway. It will reopen March 29.

Current information on crossing schedules and closures at Lower Granite, Little Goose and Lower Monumental dams is available at 1-888-DAM-INFO (1-888-326-4636).

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