WALLA WALLA, Wash. – The U.S. Army Corps of Engineers Mill Creek Project is continuing intermittent closures on the south levee trail Mondays through Fridays until Friday, Sept. 14, to remove temporary barriers and piping installed during in-stream concrete weir improvements. The Corps will also close a small portion of the east end of Rooks Park adjacent to the Mill Creek Diversion Dam forebay area for construction beginning Monday, Sept. 10, and planned to end by Friday, Sept. 14. However, both construction areas will be open on weekends.