Building a rail bridge just inches from passing trains

Chinese engineers worked within extreme space constraints to safely install four massive steel girders on a rail bridge in just 6 days. The new rail bridge is next to an operational high-speed railway handling nearly 160 trains a day. The two bridges are so close to each other that their narrowest gap is only 16 cm or 6.3 inches. #HighSpeedRail #Engineering #Infrastructure #China #MegaProjects