POMEROY, Wash. – Lower Granite Dam’s navigation lock, located at Snake River Mile 107.5 near Pomeroy, Wash., will close to all river traffic for five hours on Tuesday, Nov. 15, from noon to 5 p.m., according to operations officials with the U.S. Army Corps of Engineers’ Walla Walla District.
The brief lock closure is necessary for maintenance workers to access electrical panels and connect cables to new equipment that is part of a project to upgrade the navigation lock’s emergency generator backup system.
Operations officials do not anticipate that this temporary navigation lock outage will affect public vehicle crossings at the dam. However, travelers should keep in mind that suspension of dam crossings may be implemented at any time for extended periods due to operational needs, maintenance or construction-related activities or a change in security conditions at a dam. Travelers can call 1-888-DAM-INFO (1-888-326-4636) for the most current dam-crossing information.
Commercial navigation officials have been notified of the upcoming five-hour lock closure.
Public Notices and other navigation lock information are available on the Walla Walla District website at www.nww.usace.army.mil/html/offices/op/t/navdata/default.html.
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Release no. 11-154