Metro Rail Tunnel Work On Anna Nagar Second Avenue

While driving through Anna Nagar  one will notice the Metro Rail construction  going on. Metro has begun underground stations work at three spots along the stretch.  Of the underground metro stations that will come up beneath Anna Nagar Second Avenue. 

All underground tunnelling and station construction work would begin only after construction of the diaphragm walls, which would prevent the soil on either side from collapsing. 

A senior official of Chennai Metro Rail Limited said that a team from CMRL carried out inspections of the Tunnel Boring Machines (TBMs).Of the 36 Metro stations, 20 would be underground. Metro tunnel to be built 30 meters below ground level in Anna Nagar. 

The bottom of the tunnel through which high speed trains will run through Second Avenue and Jawaharlal Nehru Road in Anna Nagar will be at a depth of 30 meters.

The diameter of the tunnel will be 6.6 meters, and the roof of the tunnel will be 26.6 meters below the present road level. 

The underground tunnel will cross the Cooum river at about 22 meters below the river bed. Work on the elevated metro line between Koyambedu and Kathipara junction is in progress.