Either bridge inspectors get paid a hell of a lot less per hour than I think they do, or the company doing the drone inspections is way overcharging. One relatively inexperienced pilot could fly the full structure of the bridge throw it into point cloud software and drop off a highly detailed 3d model of every inch of the bridge to be inspected from the comfort of someone’s desk.
No OSHA, no driving a crane truck, no having to retract and re-extend the bucket around every structural element, no netting, no walkways or temporary bridges needing to be made.
I’m no expert on inspecting bridges, but I’d think that you still would need a professional inspector to do the inspecting, only that they would save the time of actually travelling out to the bridge themselves and instead could do it in their office, no?
And then there are probably things which still need to be done on site, such as non-visual inspections (ultrasound, X-Ray, Vibration testing, Tourque measuring on bolts, paint thickness,…? IDK)
