Every day nearly a million commuters travel on the Northeast Corridor — the vast rail network between Washington, D.C. and Boston.
Many of those passengers cross over a small river in the coastal city of Norwalk, Connecticut. But the only way for a train to get across that river is on the Walk Bridge — a 120-year-old “swing bridge.”
Sometimes, when the Walk Bridge swings open to let boats pass through, it gets stuck, causing chaos for train commuters. State officials want to replace it.