After prolonged physical toil, Cloudeater stands complete, reaching defiantly across the winding chasm like a dagger thrust into the goblin kingdom's heart. Though some have died during this effort, their minds twisted by the haunted landscape, their souls survive amidst the stonework grafted from the canyon's underside.
The bridge contains a total of 16,000 blocks, with an additional 683 logs and 672 mechanisms. The windmills on its flanks produce nearly 5,000 power, enough to keep the 115 pumps working should the two sides of the bridge become mechanically uncoupled. Five hundred pieces of furniture reside in the bridge's enormous supports, 900 if the doors are to be counted. 77 floodgates carefully control the flow of water through the system of aqueducts, reservoirs and subterranean farmlands that integrates the disparate supports.
This is the fortress of Cloudeater.The fortress' total worth is 1.5 million, easily bested by Mountain Banners' 7+ million. Though the fortress of Cloudeater has more blocks (16,000 versus 13,600), the sheer fortress value exhibited by Mountain Banners makes this somptuous pillar of fine dwarven architecture the official winner of the Canyon Engineering Challenge. Congratulations, Fedor and Symmetry!
And sorry about the horrible delay. It took me ages to plow through the game, with a month sometimes taking as much as four hours to complete near the end of the game. Given how exhausted the entire project left me, I believe this will be a good time to retire from Dwarf Fortress.