The bridge is 408 meters long and weighed approximately 1,500 metric tons when built. Originally supported by four columns, two more were added in later years to support the weight of heavier rail cars.
Malleco

YearAdded:
Image Credit: Courtesy Flickr/Rafael Retamal (CC BY-SA 2.0)Image Caption: Viaducto del MallecoEra_date_from: 1890
1994