2026 Portland Annual Navigation Lock Maintenance Outage

Notice Number: 211831-1
Effective: 03/01/2026 00:00 thru 03/21/2026 23:45 PDT

The annual maintenance lock closure for Portland District, Corps of Engineers is scheduled for March 2026. Routine annual maintenance, inspection, and repair work will take place at the locks during the closure.
Locks will be out of service during the dates and times specified in the table below:

March 2026 Navigation Lock Maintenance Closure

District     Project               Location                      Closes                       Reopens
Portland Bonneville Columbia River Mile 146.1 12:01 a.m. 02 March 2026 11:59 p.m., 14 March 2026
Portland The Dalles Columbia River Mile 191.5 12:01 a.m. 01 March 2026 11:59 p.m., 21 March 2026
Portland John Day Columbia River Mile 215.6 12:01 a.m. 01 March 2026 11:59 p.m., 21 March 2026

This is a Columbia River navigation outage. Dates for lock closures in the Walla Walla District are published separately. For additional information regarding Walla Walla District (NWW) maintenance activities you may contact Operations Division at 509-527-7364. For additional information regarding Portland District (NWP) lock maintenance activities contact Portland District at 503-808-4510.

//signed//
Foster, Ross