The present study assessed the Bailey bridge's condition and investigated its adaptation as a permanent bridge. From the survey, not only international cases but also Japanese case of Bailey bridges have been used as permanent bridges, although there is no framework. So, this study attempts to set up an adequate framework for using temporary Bailey bridges as permanent bridges and assessed the unique permanent Bailey bridge in Japan. Field loading tests were performed under various loading conditions, such as dynamic and static loading tests. From the field measurements, the deflection of the bridge was founded to ensure the elastic region for adaptation as a permanent bridge based on proposed framework.
