CNW Also C-425 no. 4258 shares space in North Green Bay's roundhouse with CNW Geep no. 4140. By 1986 Green Bay had replaced the "Alco Line" as the center of Alco locomotives on the railroad. The roundhouse had been known for its FM locomotives from the 50s to early 70s, and the fleet of former N&W C-628s moved in to take over with FM retirements. By 1986 the Alco Line had been spun off, so some remaining 4 axle Alcos were reassigned to Green Bay.
