|— Barrio —| |ARA Uruguay, recycled warehouses made into elegant
houses and businesses, the Costanera Sur Ecological Reserve and
the Puente de la Mujer.| |Autonomous City||Buenos Aires| |•
Total||2.1 km2 (0.8 sq mi)| |• Density||3,200/km2 ( 8,200/sq
mi)| |Time zone||ART (UTC-3)| Puerto Madero, also known within
the urban planning community as the Puerto Madero Waterfront, is
a barrio (district) of the Argentine capital at Buenos Aires
CBD, occupying a significant portion of the Río de la Plata
riverbank and representing the latest architectural trends in
the city of Buenos Aires. 19th century  From its inception, the
city of Buenos Aires had a problem accommodating large cargo
ships because the shallow river did not allow for direct
docking. Instead ships were moored away from the shore and
passengers and merchandise were unloaded onto barges and ferries
for transport to the pier. In 1882 the national government
contracted the local businessman Eduardo Madero to take charge
of the construction of a new port w