TUCSON, Ariz. -- Col. Mark Toy, the U.S. Army Corps of Engineers Los Angeles District commander, and David Van Dorpe, the District's deputy engineer for programs and project management, present Brian Childers a Commander's Award for Civilian Service during a Dec. 19 meeting at the Tucson Resident Office. Toy thanked Childers for his many years of service and with the work he has done on projects across the District.