Drones Are Now Used to Build Bridges

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Forget observing construction projects, workers in China are now using drones to assist in building massive bridges.

In China’s Sichuan Province workers are currently building the Xingkang Bridge that when completed will be nearly a mile long and hang over 600 feet above the raging Dadu River. The southwestern province is famous for its river gorge valleys that impede travel.

The first step in creating these massive suspension bridges is to run a pilot cable across the expanse the bridge will traverse and then use this pilot cable to rig up larger and larger cables. Usually a helicopter or boat would be used to run a pilot cable. But this time a drone is being used.

In December, Chinese engineers used a large 6-rotor drone to carry the pilot cable to the other side of the bridge structure. The engineers claim this method is over 100 times more efficient and 80% less costly than traditional methods—not to mention safer. This is also not the first time China has used drones in this manner to help construct bridges.

Such innovative uses of drones show their ability to make things more efficient and cheaper—which when you think about it, are the two keys in making a technology stick. It will be interesting to see what other ways drones can aid construction project.

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