Recently, collapsed bridges, belonging to infrastructure networks, evidence the needs of reliable monitoring and inspection routines. Inspections can be a challenge operation in sites difficult to access; specially trained staff like industrial climbers perform the inspection routine, eventually involving large under-bridge units, elevating platforms, or other specialized equipment. In addition, since the inspections are performed manually, the outcomes mainly rely on inspector confidence and experience. This paper discuss the possibility of using unmanned aerial vehicles for monitoring and inspection of transport infrastructure.