This list of highest bridges includes bridges with a deck height of at least 250 metres (820 ft). The deck height of a bridge is the maximum vertical drop distance between the bridge deck (the road, rail or other transport bed of a bridge) and the ground or water surface beneath the bridge span. Deck height is different from structural height, which is a measure of the maximum vertical dis. Structural height and deck heightThe difference between tall and high bridges can be explained in part because some of the highest bridges span the. • Chen, Baochun (10–14 July 2008). (PDF) (Report). Chinese-Croatian Joint Colloquium Long Arch Bridges. pp. 357–368. Archived from (PDF).