ARGENTINA president Mauricio Macri officially opened the second new elevated commuter railway in Buenos Aires on July 10.
It has replaced ground-level railways with new routes on viaducts, eliminating 11 level crossings, and releasing some land for redevelopment.
The 5km section of the Linea San Martin line between and Palermo and La Paternal in the city’s suburbs has been rebuilt on an eight-metre high viaduct comprising 780 prefabricated concrete sections, incorporating more than 25,000 tonnes of steel.
Two 220-tonne machines were used to move each concrete section horizontally into place. The work cost 3.1billion Pesos (£60million).
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