As a result of the application in accordance with the assessment procedures given in the Detailed Guide (plan) for the precision safety diagnosis of the external tendon in Prestressed Concrete, it was evaluated with reasonable procedures and results.

A detailed guideline was prepared to explain the contents of underground safety management guideline and to prevent confusion in the initial implementation of the law to underground safety impact assessment and underground safety inspection subjects. "Special Law on Underground Safety Management", which was created to prevent the safety of the people from frequent occurrences due to frequent occurrence of subsidence, has been systematically settled in the course of design, construction and maintenance of underground facilities. When it works smoothly, it can be said that national security is guaranteed.

By amending of the special law on the safety management of the facility, coastal structures(breakwaters) have been incorporated into kinds of facilities. In this paper, an inspection manual for the coastal structures(breakwaters) will be introduced.

By amending of the special law on the safety management of the facility, underground structure have been incorporated into kinds of facilities. In this paper, an inspection manual for the underground structure will be introduced.