Mumbai will also boast of India's 2nd under-river tunnel soon.
On Wednesday, the Mumbai Metro Rail Corporation Ltd. announced that approximately 90% of the tunnelling work on the 33.5 km-long and fully underground Colaba-SEEPZ Mumbai Metro Line 3 has been completed. Of the 54.50 km dual tunnel for up and down lines, the MMRCL has till now completed 49.50 km tunnelling, for the city's first fully underground Metro Line 3, a portion of which will go underneath the Mithi River. The latest milestone has been achieved at Dadar Metro Station with the wrapping up of the 1.12 km-long tunnel work starting from the Siddhivinayak Temple to Dadar. This marks the completion of the 10.96 km tunnel under Package-4.
Dadar to provide enough connectivity to ease the commuting woes of Mumbaikars on Line 3
The Package-4 includes Siddhivinayak Temple, Dadar and Shitladevi stations along with 8 important breakthroughs at various locations on the Colaba-SEEPZ alignment. This will cater to some of the most important business and residential locations including the Mumbai International Airport. It is also inclusive of a 170-metre long dual-tunnel passing under the Mithi River on the Dharavi-Bandra Kurla Complex sector, making it India's second under-river tunnel after the one underneath Hooghly River, in Kolkata.
MMRCL's Director (Projects), S.K. Gupta said that the Herrenknecht-made TBMs, equipped with earth pressure balance technology, started its main tunnelling drive on July 7 and the stretch was completed using 805 rings. As per reports, at the moment the overall progress of Dadar Metro Station is around 42%.
MMRCL Managing Director, Ranjit Singh Deol, was quoted saying, "The tunnelling work, using 3 Tunnel Boring Machines, in 4 out of the total 7 packages is now 100 per cent complete. The tunnelling in Package 4 was particularly challenging as all stations are located in close proximity to developments, active road traffic and important religious sites." He further added that Dadar is considered as the central part of Mumbai and now it will provide enough connectivity to ease the commuting woes of Mumbaikars, on Line 3.