The Quarrystone Viaduct, staight or curved and the Viaduct "Rhône" can be combine with each other perfectly.
You can connect the bridge elements with every type of glue (even those containing thinners). If necessary, you may shorten the bridges or the bridge head with a craft knife or a dovetail saw. For finishing works, you should use sandpaper or a file.
The hardfoam line "Quarrystone Wall" has the same structure as the made-from-hardfoam bridges. You may use this line to design walls and tunnels fitting to the viaduct.