The Delhi Metro is set to bag itself a new record — its deepest tunnel, which will pass under an existing line.
The 37-km-long corridor from Janapuri West to Botanical Garden in Noida, part of Phase-III, will pass below the existing Hauz Khas station and have a station at a depth of 29 metres.
The average depth of existing Metro stations is 17 metres.
To prepare for the engineering feat, the Delhi Metro officials have begun a massive upgrade of construction infrastructure. The unique aspects include, the atopography and design of the station, the mode of construction and the machinery deployed.
Officials said the new Hauz Khas station will also be a vital Metro hub, connecting Metro lines between Gurgaon (Huda City Centre-Jahangirpuri) and Noida — thereby, reducing travel time.
The new station will be perpendicular to that of the Yellow Line at Hauz Khas. This, officials said, means use of new technology to accomplish the complex nature of construction.
Connecting NCR Gurgaon & Noida
Officials call the upcoming Hauz Khas station as the ‘Rajiv Chowk’ of the Phase-III.
The interchange will allow Yellow Line passengers from Gurgaon to switch to a direct Metro to Botanical Garden in Noida, instead of travelling all the way to Rajiv Chowk.
“This new interchange will contribute towards decongesting Rajiv Chowk station, which receives a daily average footfall of 5 lakh. The passengers travelling between Gurgaon and Noida, and South Delhi localities like Nehru Place and Kalkaji will not need to travel to Rajiv Chowk. They can change trains at Hauz Khas,” a DMRC spokesperson said.
The travel time between two NCR cities is expected to come down by at least half an hour, allowing commuters to reach from Noida to Gurgaon, and the other way around, in 50 minutes.
Metro officials expect the an average daily footfall of 1.69 lakh commuters, when the line opens in 2016.
The interchange on many levels
The subway from the south access point of the existing Hauz Khas Metro station will be widened to allow for integration with the Phase-III station.
“The subway, 12 metres wide, would be constructed expanding from the present south entry/exit. Since the outline of