Public crossing at Lower Monumental Dam closed December 1st and 2nd

U.S. Army Corps of Engineers, Walla Walla District
Published Nov. 21, 2025

Public crossing at the U.S. Army Corps of Engineers’ Lower Monumental Lock and Dam will be closed from December 1 - 2 for maintenance.

During this period, all vehicular and pedestrian traffic across the dam will be suspended to ensure the safety of the public and work crews. USACE encourages travelers to plan alternative routes during this time.

Normal crossing hours are once an hour, on the half-hour, from 7:30 a.m. to 4:30 p.m. Monday through Thursday – federal holidays excluded. Public dam crossings are also available at Lower Granite Lock and Dam and Little Goose Lock and Dam.

For more information about dam crossing visit https://www.nww.usace.army.mil/Missions/Recreation/Dam-Crossing/ or call 1-888-DAM-INFO (1-888-326-4636).


Contact
Public Affairs Office
509-527-7020
cenww-pa@usace.army.mil

Release no. 25-040