The Warringah Freeway (also known as the Warringah Expressway) is a 3-kilometre (1.9 mi) divided freeway located in Sydney, New South Wales, Australia. The freeway forms part of the M1, the Sydney Orbital Network, and the Highway 1 network. The primary function of the freeway is to provide an alternative high-grade route from the Sydney Harbour Tunnel and the Bradfield Highway at Milsons Point to the A8 and the Gore Hill Freeway. The freeway reduces traffic demands on the Pacific Highway throughout Sydney's Lower North Shore, bypassing North Sydney and Crows Nest. Completed in a series of stages between June 1968 and August 1992, the Warringah Freeway provides a vital link to access most of the suburbs in Sydney and is also a major route to the north, south, east and west of the central bu