The Delhi Metro Rail Corporation (DMRC) has announced the work on the longest tunnel so far of the phase 3 work has been completed with breakthrough of the tunnel boring machine (TBM) at Lajpat Nagar.
The 1565m-long tunnel between the South Extension and Lajpat Nagar will be the second longest on the Majlis Park to Shiv Vihar metro corridor which forms the third phase of DMRC’s development plans.
Work on the longest tunnel from Nizamuddin to Ashram, which will be 1691m in length, has not yet started.
DMRC has said that it is pleased with the work on the 5.8m diameter South Extension to Lajpat Nagar tunnel went well with the TBM passing at depths of up to 21m below the densely populated areas of Kotla and Defence Colony.
According to DMRC, Lajpat Nagar will be a major interchange hub when the new phase 3 line is opened at the end of 2016. The 58.5km route will have a total of 19km of tunnels and 12 underground stations.