HO Scale Precast Concrete Box girder load. Load is HO scale representing a 30' box girder section. These loads are typically transported in two sections for every bridge span. A right and left side to make it narrow enough for clearances during transport. Then joined together and grout joints finished at bridge work site. Replica can be magnetically attached to flatcars or with double sided tape on cars that do not have a magnetic deck. Each set includes two 30' loads to fill one long flatcar or two short flatcars. Flatcar not included (for reference only). Will combine shipping on multiple items.