New Delhi, Aug 16 (UNI) The Delhi Metro Rail Corporation (DMRC) commenced preliminary work on the 5th Metro bridge over river Yamuna, which is coming up on the Majlis Park – Maujpur Metro corridor of Delhi Metro's Phase 4, a DMRC spokesperson said on Sunday.
'The bridge will be 560 metres long. Currently, there are four bridges of Delhi Metro on the Yamuna,' the spokesperson said.
The bridge will connect the Soorghat Metro Station and the Sonia Vihar Metro Station of the Majlis Park – Maujpur corridor. After carrying out geotechnical investigation at the location of proposed piers, the activity of casting of test piles is in progress. To utilize available time during this monsoon season, a cofferdam away from active course of Yamuna has been constructed by raising the level of ground by filling of earth and sand from nearby area with protection of its slope through bamboo, jute netting and sand bags.
The level of cofferdam has been kept same as level of adjacent road to ensure supply of requisite construction material like steel reinforcement, metal liner, ready mix concrete, etc.
This bridge will come up between two existing bridges on Yamuna i.e. Wazirabad Bridge and the Signature Bridge. This will be the first ever Metro bridge over Yamuna to be built using the Cantilever construction method.
A cantilever is a rigid structural element which extends horizontally and is supported at only one end. Typically it extends from a flat, vertical surface such as a wall or pier, to which it must be firmly attached.
Cantilever construction allows overhanging structures without additional support. Employment of this technology will make the bridge look aesthetically better.
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