What is the best truss design for toothpick bridges?

Keep in mind that the contest is more about building a STRUCTURE. The strongest structure spanning two abutments probably doesn't look like these classic iron bridge designs suggested by the civil engineers. The rules usually don't specify how “real” your structure has to be. Think triangles. read more

I later built the bridge I had planned while at home and it worked pretty well it was a foot and a half long with a double truss design ( a set of trusses on the top and bottom) and it also had a slight arch to make it even sturdier. read more

The design relies on the four catenary arches to transfer the weight of a load to the four feet on each side of the bridge. They work in tandem like a regular truss with struts that connect the upper arches to the lower archs. read more