Sydney’s ‘unbuildable motorway’ to be completed after two-year delay caused by sinkholes

State government and consortium strike deal to complete M6’s twin tunnels with minister insisting there is ‘no extra cost to NSW taxpayers’

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Tunnelling on Sydney’s $3.1bn M6 project, dubbed the potentially “unbuildable motorway”, will resume after the state government struck a deal with contractors, ending a two-year stalemate during which works were halted.

Under the terms of the new agreement, the private consortium will absorb the costs of finishing the tunnels, limiting the financial hit to taxpayers.
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