The Lane Cove Tunnel is a 3.6 kilometre twin tunnel serving Sydney’s fast-growing north-west corridor.
Part of Sydney’s orbital road network, the Lane Cove Tunnel connects with the Hills M2 motorway.

The Lane Cove Tunnel runs for 3.6 km and forms part of Sydney’s orbital motorway network. Taking the tunnel allows you to avoid traffic congestion on Epping Road between Sydney’s northwest and the CBD.

Source: https://www.transurban.com/roads-and-projects