Kahlotus, Wash. – On June 13, an operator at Lower Monumental Lock and Dam noticed that the floating guidewall had drifted out of alignment. A service cable inspection and repair dive were conducted and discovered, on July 28, that the anchor cable had broken, allowing the guidewall to swing towards the dam until broken cables snagged in the mud. To prevent further movement, and to allow grain to continue moving down river, Corps officials brought in a tugboat to hold the guidewall in place. The tugboat held the guidewall in place from Aug. 1 until Sep. 22.