Increased Lockage Time at McNary Navigation Lock

Notice Number: 201282/22-27

Date: 09/09/2022 14:38 thru 09/14/2022 17:00

Due to sealing problems with the navigation lock tainter valve #1, the valve was removed from service at 1438 on 9 September 2022. Maintenance crews are investigating the issue so there is no firm estimate for when the lock will return to full service. Until further notice, lockages are predicted to require an additional 15-20 minutes to complete.

Project affected: McNary Lock and Dam, located at Columbia River Mile 292.

For additional information contact the McNary Chief Operator at 541-922-2231, Call Sign: WUJ41 or NWW Operations Division at (509) 527-7364.



Kenny Koebberling
Navigation Business Line Manager
Walla Walla District