612 



ERECTION OF THE GOKTEIK BRIDGE. 



present. The single towers consist of two transverse trestle lients, 

 braced together in all directions. The double tower consists of three 

 trestle bents. So far as practicable, the members of all bents were 

 made interchangeable. 



Except seven plate-girder spans, located at the ends of the viaduct, 

 all of the connecting spans are made up of two l'2()-ioot deck trusses. 

 These trusses carry. 27-inch plate-girder floor beams spaced 13 feet 



Traveler supporting columns during tower construction. 



apart, which in turn support the track stringers. The top flanges of 

 the trusses, floor beams, and stringers are made flush, and are covered 

 over with a solid floor of flve-sixteenth inch flat plates. 



To handle the material a special traveler was designed and con- 

 structed at the works of the Pennsylvania Company, shipped to Asia 

 with the l)ridge material, and put together at the gorge. This is by 

 far the largest traveler ever l^uilt, having an overhang of 165 feet 



