Show FACTS ABOUT THE QUEENSBORO BRIDGE The bridge is 2 feet long It is the largest public cantilever bridge in the world River span spall west of wells Blackwell's Island is 1182 feet long River span east cast of the island is feet long Length of the island span is feet Clear height of the bridge above mean high water is feet Maximum grade on bridge is per cent Height of towers above bottom chord is f feet et Eight years ears were taken to build it Was Vas opened to traffic March 30 1909 Can accommodate ate persons Total dead load equals pounds lias Has four elevated railroad tracks Has two promenades and four trolley tracks |