The MMRDA (Mumbai Metropolitan Region Development Authority) has undertaken work on a new underground Metro line that connects Metro Line 7 with CSIA (Chhatrapati Shivaji International Airport). This will be located between the Western Express Highway, Andheri, and Dahisar (East).
The Metro Line 7A spans a total of 3.1 km out of which 2.1 km will be underground. This will also include a twin-tunnel. The contractors will reportedly use a cut-and-cover method for the construction which will see the roads removed and patched up again when the work is completed.
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It is said that this Metro line will take an elevated route from Andheri East to Airport Colony following which the line will be underground until it reaches the airport station of Metro 3.
An official from the MMRDA said “There will be two stations- Airport Colony will be elevated, while the Metro T2 station will be underground. It will be integrated with Metro 3 (Colaba-Bandra-Seepz) station.”
It is said that the Airports Authority of India (AAI) hasn’t sent an approval yet, but the contractor has reportedly begun working on barricading between Bahar Junction and NAD Colony. Further, the MMRDA was planning to extend the 16.5km Dahisar East - Andheri East line until Bandra Kurla Complex. But this plan was subsequently dropped since the MMRC’s (Mumbai Metro Rail Corporation) Metro 3 line was already undertaking this project.
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