Gohteik viaduct

Gohteik viaduct is in Nawnghkio, western Shan State, Myanmar. The bridge was constructed in 1899 by the Pennsylvania and Maryland Bridge Construction Company, and opened in 1900. The components were made by the Pennsylvania Steel Company and were shipped from the United States. It is the highest bridge in Myanmar and when it was completed, the largest railway trestle in the world.

The viaduct measures 689 metres (2,260 ft) from end to end. Height from the rail deck to the ground on the downstream side of the tallest tower, is 102 metres (335 ft).

Because the line from Mandalay to Lashio is considered to be of strategic value, a diversionary route to the valley floor, featuring spectacular horseshoe curves, was built in 1976-1978, to keep trains running even if the Gohteik viaduct was sabotaged. Those tracks were still visible from the viaduct in 2013, but the diversionary line has been left to the tropical vegetation since 2002.