Sydney’s ‘unbuildable motorway’ to be completed after two-year delay caused by sinkholes
motorway](https://www.theguardian.com/australia-news/2025/jun/29/could-the-m6-be-sydneys-unbuildable-motorway-due-to-sinkholes-and-a-reverse-fault)”, 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