WALLA WALLA, Wash. – The U.S. Army Corps of Engineers, Walla Walla District (Corps), and Walla Walla County (county) invite the public to attend a progress-update presentation about the Mill Creek General Investigation Feasibility Study (study) on Thursday, May 30, from 5:30 p.m. to 7 p.m. at the Courtyard by Marriott, located at 550 West Rose Street in Walla Walla, Washington. The presentation will begin at 5:30 p.m., with time afterward for questions.