Chenab Bridge and Anji Khad Bridge: the record-setting structures on the 272-km Udhampur-Srinagar-Baramulla Rail Link
Background
The Udhampur-Srinagar-Baramulla Rail Link (USBRL), 272 km long, covers Udhampur, Reasi, Ramban, Srinagar, Anantnag, Pulwama, Budgam and Baramulla districts of Jammu and Kashmir.
The Chenab Bridge in Reasi district is the world's highest railway bridge: 1315 m long, with an arch span of 467 m and a height of 359 m above the river bed.
The Anji Khad Bridge is Indian Railways' first cable-stayed bridge; its deck is 331 m above the river bed and its main pylon is 193 m high.
All tunnels longer than 2 km have mechanical ventilation, and escape tunnels have been built where a tunnel is more than 3 km long, totalling 66 km.
In plain words
Arch span — The distance covered by the curved arch of a bridge between its supports.
Pylon — The tall tower of a cable-stayed bridge from which the cables are strung.