Port facilities are subject to the large influence of ships docking and to the vagaries of wave induced motion. In both cases the port facilities can be downgraded over time. SG has experience with several large port facilities around the world. Probably the most important service is the assessment of inaccessible supports to decks without recourse to using divers in difficult conditions. Such information can be used as a means of assessing the viable capacity of deck structures. Additionally, the aging of port structures that are subjected to large ship loading is an SG speciality with advice about strategies to effect the continuing safe operation of a port.