<P> The world 's longest suspension bridges are listed according to the length of their main span ( i.e. the length of suspended roadway between the bridge 's towers ) . The length of main span is the most common method of comparing the sizes of suspension bridges , often correlating with the height of the towers and the engineering complexity involved in designing and constructing the bridge . If one bridge has a longer span than another it does not necessarily mean that the bridge is longer from shore to shore ( or from abutment to abutment ) . </P>
distance from one side of a bridge to the other crossword
span