Giant caverns beneath Sydney’s north shore mark finish line for new harbour crossing
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The first of two giant boring machines is tunnelling under a harbour. This machine is entering the riskiest phase of the motorway project. It must now carve through soft ground to reach giant caverns beneath the north shore of Sydney.
The first of two giant boring machines tunnelling under the harbour is about to start the riskiest part of the motorway project, carving through soft ground.