I have completed, for now at least, my K'nex cable-stayed bridge. The bridge measures 55 feet long with a 25 foot central span which rises 3.5 feet above the ground. The two supporting towers measure just over 7 feet high and the road deck is 7 inches wide and 1.5 inches thick. The bridge is supported by over 200 feet of cables and uses just over 9000 pieces. If the bridge can support it, I may double the width of the road deck.