Steel prefabricated bridge, also known as Bailey Bridge. The Bailey Bridge is composed of lightweight standardized truss units made of steel, including crossbeams, longitudinal beams, bridge decks, abutments, and connecting components, which can be rapidly assembled on-site using installation equipment into truss girder bridges suitable for various spans and loads. Domestically named as assembled highway steel bridge, it is a type of steel bridge but not identical to it. The Bailey Bridge is quite typical, with the main feature of modularity, ease of application, and widespread use.