The Chenab Bridge, an under-construction rail bridge in Jammu and Kashmir, India, spans 1,315 meters at a height of 359 meters, making it poised to be the tallest rail bridge in the world upon completion in 2016. Designed using steel and concrete, the project is part of the Jammu-Udhampur-Srinagar-Baramulla rail line and aims to improve transportation for locals in a challenging mountainous terrain. The project faces challenges including construction without obstructing the river flow and financial implications due to delays in its completion.