I built a bridge, 20 slope x2 so that a Caravel can pass under it because a caravel's height is 35. Turns out this isn't necessary? What's the required `dirt above water` measurement for a Caravel when applied to bridges? A magic number that i think, we need to know. (caravel being the tallest ship) 28-05-15 EDIT - Here is the info, we require; http://forum.wurmonline.com/index.php?/topic/124030-community-bridge-project-in-southeast-deliverance/page-3#entry1279033