sentences:  Infante Dom Henrique Bridge, upriver, was completed three months earlier to provide an alternative vehicle connection between Porto and Vila Nova de Gaia.The new "D Line" was inaugurated on 18 September 2005, and opened to the metro trams and pedestrian traffic.With more traffic and demographic growth, in March 2006, a project to enlarge the lower deck was elaborated by architect Virgínio Moutinho and engineers António and José António Campos e Matos.