sentences:  In Sydney, many of the motorways contain at least one tolled section with a mixture of government and private ownership.The State Government owns the Sydney Harbour Bridge and Sydney Harbour Tunnel, while the M2 Motorway, M4 Motorway, M5 Motorway, Eastern Distributor, Westlink M7 and Lane Cove Tunnel are privately operated by a variety of companies such as Macquarie Infrastructure, Transurban, and to a lesser extent Industry Super funds such as Retail Employees Super, SunSuper, and the Industry Funds Management which partly own the M5 motorway in South Western Sydney.As well as the tolled motorways, the Cross City Tunnel - an east–west route underneath the Sydney CBD - was opened to traffic in 2005.