Lattice Iron Footbridge over Railroad Tracks

The diamond lattice along the sides of an old footbridge like this isn't decoration. It's the girder itself, a web of riveted iron strips that carries the walkway with very little metal. When the lines below were electrified, many of these bridges had to be raised or fitted with solid panels so nobody could reach the wires. Here a green one crosses four tracks next to an old brick signal tower on a gray winter day, a railroad footbridge jigsaw puzzle with lattice nearly end to end.