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Cross Island MRT line: New rail tunnel under nature reserve can be done safely, say experts
Drilling to 70m depth for MRT line will be a first in S'pore, but practice is not uncommon
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The Cross Island Line tunnel that will pass under the Central Catchment Nature Reserve will be dug 70m below ground to mitigate the impact on the environment.
ST PHOTO: DESMOND FOO
Toh Ting Wei
Drilling a railway tunnel 70m below ground will be a first in Singapore, but the practice is not uncommon worldwide.
It will come with additional challenges, such as a higher cost, but it can be done safely, tunnelling experts told The Straits Times.
