The project addressed in this environmental impact statement is a proposed traffic relief route for the Hume Highway (State Highway No. 2) at Yass, including connection to the Barton Highway. It is proposed that this traffic relief route would take the form of a controlled access bypass of the township of Yass from just west of Gunning Gap (276 kilometres from Sydney) to join the existing dual carriageway on the highway north west of Yass near Derringullen Creek (296 kilometres from Sydney).