Work in McNary’s Navigation Lock to Temporarily Increase Lockage Times

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Locking a vessel past McNary Lock and Dam will take about 20 minutes longer than usual on Tuesday and Wednesday, Sept. 26-27, while workers perform inspections and service of tainter drain/fill valves, according to U.S. Army Corps of Engineers officials at the dam.

Two of the navigation lock’s four valves will be shut off to allow the work to occur, resulting in about 35-45-minute lockage times, depending upon the direction of travel. Lockages moving vessels from downstream to upstream river levels take about 5-10 minutes longer than upstream-to-downstream lockages.

Recreational vessel owners can find information on nearby Corps-managed boat launches in the Walla Walla District online.