Inside State Line Tower By Angela Cotey | October 14, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates An operator pulls the armstrong levers to align a route at busy State Line Tower, near Hammond, Ind., on the Chicago & Western Indiana. As the track diagram shows, several railroads operated through the 200-plus lever plant. Wallace W. Abbey photo