I had a corner of the layout to fill, so i decided to build a viaduct on a curve.

Again as before it was built as a module in my garage and then moved into the house

The viaduct is built with a plywood shell and then covered in wills coarse stone sheets, with slater's plasticard for the arches

I've found that you can use a warm soldering iron to melt the coarse sheets on the joins to hid them

The watermill is from the wills craftsmaster kits