A series of modular viaduct arch castings are being produced complete with optional inserts. The arches can be left open and unfilled and used to build a straight viaduct, or filled in with optional inserts to reproduce the small businesses who frequently populated these arches. Matching internal walls will be available.
A pre-production photo here shows three Modular Viaduct Arches in a small diorama display. Matching Top Walls, Buttresses and End Plates as shown here will all be available.