China begins work on railway up to Arunachal border

• China has begun work on a strategically significant railway line - its second major rail link to Tibet - that will link Sichuan province with Nyingchi, which lies near the border with India’s Arunachal Pradesh.

About the Section

• The 435 km section from Nyingchi-Lhasa segment has been under construction since 2015, and will be finished by the end of next year.
• As much as 75 per cent of this section consists of 120 bridges and 47 tunnels, with a designated speed of 160 km/h.
• This includes a 525 metre-long bridge across the Yarlung Zangbo river, as the Brahmaputra is called in Tibet, which has been built at a height of 3,350 metres.
• This makes it the world's highest concrete-filled steel tube arch railway bridge.