The layout will incorporate a road underpass and bridges over a small canal, so I had to tackle these two projects first prior laying down any rail-track
So I finished the rail-bridges and the road, as well as some tiny manhole-covers and storm-drains.
The bridge parts, pile wall and manhole covers are 3D printed parts.
I also needed to build the scenery around the canal before I could place the bridges.
The bridge abutments are made out of XPS foam, covered with plaster and weathered.
I used several coats of thin clear coat to seal the canal ground color, for the water effect I used a modge podge like thicker clear coat to add some small ripples to the surface.
For the road, I use plaster and several washes of black, followed by some weathering powders.