Navigation Notice: Columbia and Snake Rivers

NOTICE NUMBER: 18111 / 16731-1 / 22-02a
EFFECTIVE: 02/13/2022 06:00 thru 03/19/2022 23:59 PST

The annual maintenance lock closure for Walla Walla and Portland Districts, Corps of Engineers is scheduled for February and March 2022. Maintenance, inspection, and repair work will take place at the locks during the closure.

The Locks and Dams have also scheduled non-routine work. The non-routine work includes gate cleaning and realignment, structural inspections and repairs, structural weld repairs, and equipment/machinery repair and replacement.

Locks will be out of service during the dates and times specified in the table below:

February 2022 - March 2022 Navigation Lock Maintenance Closure

This is a Columbia/Snake River System navigation outage.  For additional information regarding Portland District (NWP) lock maintenance closures, contact the Portland District Operations Division at (503) 808-5419. For additional information regarding Walla Walla District (NWW) maintenance activities you may contact Operations Division at (509) 527-7364.