Shore protection facilities have a long lifetime and must be expected to meet demands for providing people living coastlines with safety and security. The principal demands for those facilities seem to be simple but have not been practically so easy to be kept over the requirements. The reasons for those are that facilities are rather big and are exposed to severe environments for materials. Those facts may cause difficulties in even visual inspection. In addition, as it would be very important, rise of the seawater level, etc. due to global warming may affect the function and performance, which has to be taken into account rehabilitation planning. To overcome such difficulties, it is important to pursue coordination between design and maintenance based on the procedure of the life-cycle management through which sustainability indicators would be maximum/minimum. This paper presents the concept and the framework of the life-cycle management system for those facilities and introduces methodologies of the management system particularly feasible to practical maintenance.