The MacArthur Maze is sometimes considered to include or instead refer to the four-level stack interchange completed in 1985 between California State Route 24, Interstate 980, and Interstate 580, approximately 1.0 miles east of the East Bay Distribution Structure, which allows full freedom of movement, unlike the MacArthur Maze, and is often used (in conjunction with I-980's southern terminus at I-880) for the Maze's missing movements.