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Steel Bailey Bridge
Bailey Bridge is one kind of prefabricated bridge, which is composed of panels and assembled together to withstand various lengths and strengths allowing the crossing of vehicles.

It is easy to be mounted without help of truck cranes in some remote areas, which means to finish installation only by hands of human power. But it will be better to use crane and launching tools for installation surely.
It is also called as portable steel bridge, compact **0 panel bridge, Mabey bridge, or temporary prefabricated bridge with pedestrian. 

There are two models, namely Compact **0 and **0 bridges in international market.  In China, there are two sizes of panels accordingly, i.e. 3m*1.4m and 3m *2.**4m.  It can be assembled into 3.7m, 4.2m and 7.4m standard width bridges or other extra widths.  Bridge type shall be decided according to customer's requirement, especially the span, width, load and surface treatment etc. 

Standard Bailey bridge (AASHTO) is a portable pre-fabricated truss bridge, designed for use by military engineering units to bridge up to *0 m (**0 ft) gaps. It requires no special tools or heavy equipment for construction, the bridge elements are small enough to be carried in trucks, and the bridge is strong enough to carry tanks and heavy trucks. It is considered a great example of military engineering as temporary bridge. Bailey bridge continues to be produced and used today for various civil projects in China .