User:Marlisco/Sangaldan Tunnel

The Sangaldhan Railway Tunnel  is a 7.1 km (4.4 mile) railway tunnel between Katra-Qazigund section of Jammu–Baramulla line located to the north of Sangaldhan of middle Himalayas in Jammu and Kashmir, India near Ramban town.

Background and Challenges
The tunnel has been constructed by Konkan Railway, a subsidiary of the Indian Railways , as a part of its Udhampur-Srinagar-Baramulla rail link project. The tunnel passes through strata of poor geology, consisting of Muree formation. The excavation was done using drill and blast method. The costruction phase was littered with tunnel collapses and slope failures.