Inspection and bridge maintenance plays an important role in the safety and operation of an efficirnt transport system.Maitenance cost of bridges will be lowered and lifecycles cxtended depending onsuitable and early maintenance.[*]Hokkaido development bureau(HDB)is supporting about 3,000bridges.[*]HDB has benn maiking guidelines for maintenance of bridges inccluding inspection dianosis repairs and accumulation of maitenance information for Efficient operation of bridges.We aim at the next points.olkjmhun |