WhatAmerican multinational engineering firm designed the Sutong Yangtze River Bridge. 
Peace Bridge (Foyle):  The 235 m bridge was designed by AECOM, who also designed the Sutong Yangtze River Bridge, and Wilkinson Eyre Architects, who also designed the Gateshead Millennium Bridge. AECOM: AECOM ( ) (formerly known as AECOM Technology Corporation) is an American multinational engineering firm that provides design, consulting, construction, and management services to a wide range of clients.
AECOM