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John Day Lock Open, Bonneville, The Dalles Closed by Staff East Oregonian, March 21, 2011

PORTLAND - The U.S. Army Corps of Engineers reopened the navigation locks at John Day Dam as scheduled Friday night.

However, the locks at Bonneville Dam closed for upstream gate repairs Sunday at 7 a.m. The gate was damaged Thursday during a routine operation to flush debris out of the upstream channel and through the lock. The top of the gate was exposed to high water pressure and buckled when drain valves pulling water into the lock failed to fully close.