 The Japanese and Italian internees were transferred to Fort Missoula and the Germans to Fort Lincoln, and the temporary detention facility closed on March 30, 1943.At the conclusion of World War II, the northwest staging area of Fort Lewis became a separation center and discharged its first soldiers in October 1945.Sometime in the early 1960s Interstate 5 was built through the fort separating the northwest corner of the fort, and creating "Northfort".