A deep look inside the UAE's rail tunnel that cuts through the northern mountains

New footage has revealed the epic scale of Etihad Rail's 1.8-kilometre tunnel through the Hajar Mountains. Not only did crews bore through some of the UAE's most complex mountainous terrain successfully, the tunnel's completion brings the line's main opening another step forward.

Etihad Rail completes excavation of the GCC���s longest rail tunnel.
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