 Completion of the east-west line had shifted rail traffic from the north-south route through Amboy.The result was fewer scheduled passenger trains and less cargo rolling through Amboy and the railroad decided to downgrade the section of track from Freeport to Centralia (including Amboy) to a sub-division.The headquarters in Amboy were closed and the locomotive repair and maintenance facilities were mostly abandoned and relocated to Freeport, Illinois, and Clinton, Illinois.