Navigation Notice: Snake River



Notice number: 19006/22-14
Date:  03/16/2022 thru 04/15/2022

Until repairs to the floating guide wall keyway that connects the guide wall to the dam are completed, vessels transiting the Lower Monumental navigation lock must use caution when operating near the project’s upstream floating guide wall.

Specifically, vessels may not tie up to the floating guide wall.  Additionally, vessels may not rub against the floating guide wall when approaching or leaving the lock, nor should they use the guide wall as a pivot point for entering the lock.  Crew changes for commercial vessels may only take place within the lock chamber when the vessel is properly secured to floating mooring bits.

PROJECT AFFECTED: Lower Monumental Lock and Dam - Snake River Mile 41.6

These restrictions will remain in place until repairs can be completed to the floating guide wall keyway.  These repairs are planned for completion by 1700 on 15 April 2022.

For additional information on this work contact the NWW Operations Division at (509) 527-7364.



Deputy Chief, Operations Division
Walla Walla District