Tunnelling under major roads and MRT lines: North-South Corridor construction enters 'most challenging phase'

Construction on Singapore's North-South Corridor has reached its most complex phase, involving intricate tunnelling beneath critical existing transit infrastructure and major roadways. Engineers are navigating difficult subterranean conditions, including rock blasting and extremely tight clearances near active mass rapid transit lines. These hurdles have contributed to delays in completing one of the nation's largest and most ambitious transport infrastructure initiatives.