BURBANK, Wash. – Ice Harbor Dam’s navigation lock, located at Snake River Mile 9.7 near Burbank, Wash., is planned to be temporarily closed to all recreational river traffic beginning Monday morning, Nov. 12, and ending Friday evening, Nov. 16. The closure is for channel maintenance work to remove and dispose of an accumulation of rocks and earthen materials within the downstream lock approach area identified during a recent Corps survey. Commercial navigation traffic will be allowed only during evening hours.