Slower Lockages at Lower Monumental Navigation Lock

Notice Number: 202478-1/23-16a
Date: 04/10/2023 08:00 thru 04/27/2023 17:00

The maintenance crew at Lower Monumental Lock and Dam continues work to replace navigation lock tainter valve hydraulic cylinders. This work is estimated for completion on 20 27 April 2023. River users should expect lockages to require an additional 10-15 minutes as this work is performed.


Lower Monumental Lock and Dam - Snake River Mile 41.6

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


Navigation Business Line Manager
Walla Walla District