State government and consortium strike deal to complete M6’s twin tunnels with minister insisting there is ‘no extra cost to NSW taxpayers’ Get our breaking news email , free app or daily news podcast Tunnelling on Sydney’s $3. 1bn M6 project, dubbed the potentially “ unbuildable motorway ”, will...
Source: [Guardian World](https://www.theguardian.com/australia-news/2026/jun/19/sydney-m6-motorway-tunnelling-sinkhole-delay-will-be-completed)