This is for a gentleman with a large basement layout, the two stilted arches are about 12" each, it weighs less than a few pounds with the wood deck. Otherwise, it is made almost entirely of pink building foam, with a little cement board.|
It stands about 18" high, 11" deep, and 36 " wide, and is extremely strong. He runs some large locomotives, mostly Union Pacific Gas Turbines, Big Boys, Challengers, DDA40's and the like.
In this photo, I am just finishing up the deck and railings, and have yet to finish the arch barrels.
It is now done, and will be going on his layout soon. It was colored to similarly match his rocky terrain, using yellow ochre, raw sienna, and a few others.
I make most of my bridges so that they simply drop in place, as this one does, shimming the bottom piers and abutments as needed. The deck that extends beyond each end is so he can attach it firmly to his sub-roadbed.
I would provide a photo of it installed, but he would rather not have photos of his layout posted to the public, which I fully understand. The bridge looks good though, big as it is, but it's actually dwarfed by his huge floor to ceiling layout with plaster and wire mesh mountains, and a curved trestle longer than most mid-sized automobiles.