I didn't get much work done on my duckunder bridge this weekend. I built this instead. It's made mostly out of strips of 1/8" hardboard. The arch was made by bending, glueing, and clamping them to a frame. The supports are 3 pieces glued together and cut to fit. The round detail is made from pieces of wood molding. I filled in the gaps with plaster then primed the whole thing. I still need to do some detail on the front, and it needs to be painted, but I'm happy with it so far.