Instead , 11 - foot ( 3.4 m ) I - beam girders gave the bridge an art deco streamlined appearance .
Unlike other suspension bridges , the Whitestone Bridge did not have a stiffening truss system .
11 - foot ( 3.4 m ) I - beam girders gave the bridge an art deco streamlined appearance .
Unlike other suspension bridges , the Whitestone Bridge did not have a stiffening truss system .