Conchi viaduct

The Conchi viaduct, or Loa viaduct, is located on the Loa River in Chile, 68 kilometres (42 mi) from Calama. It was built to carry part of the Ferrocarril de Antofagasta a Bolivia (Antofagasta & Bolivia Railway). It stands 103 metres (338 ft) above the river and is 244 metres (801 ft) long. When opened in 1888 and it was the second highest rail bridge in the world, after the Garabit viaduct.

Conchi Viaduct Viaducto de Conchi
Coordinates	22°01′56″S 68°37′15″W
Carries	pipes, road
Crosses	Rio Loa
Locale	El Loa province, Antofagasta region
Characteristics
Design	Trestle bridge
Material	Steel
Total length	244 metres (801 ft)
Height	102 m (335 ft)
History
Engineering design by	Edward Woods
Construction start	1886
Construction end	1888
National Monument of Chile
Designated	29 May 2015
Location

In 1914, the railway was realigned. Today, the bridge carries only pipes and a cordoned-off road.^[1]

On June 3, 2015, it was declared a National Monument, in the category of Historical Monument, by Decree 156 of the Ministry of Education, published in the Chilean Official Journal.^[2]