Buenos Aires Argentina - Dec 25, 2018: Old Nicolas Avellaneda steel bridge across riachuelo in La Boca, Buenos Aires Argentina,Transbordador del Riachuelo is a transporter bridge in Buenos Aires, Argentina. The bridge was in use from its completion in 1914 until 1960, when operation ceased until 2017. Since 1999 the bridge is a National Historic Monument of Argentina.