WestConnex is a 33-kilometre (21 mi) predominantly underground motorway scheme in Sydney, New South Wales, Australia. As of 2022, it is partially completed and partially still under construction. A joint project of the New South Wales and Australian governments, the motorway scheme is creating around 26 kilometres (16 mi) of new tunnels between Homebush and Kingsgrove, passing underneath Inner West suburbs including Haberfield and St Peters. The first of the tunnels, the M4 East, opened to traffic in July 2019. The second of the tunnels, the M8 Motorway, opened to traffic a year later in July 2020. The rest of the tunnels are expected to open to traffic in 2023.