The North Western Expressway and the Lane Cove Valley Expressway was a planned but later cancelled freeway route in Sydney, New South Wales, Australia, intended to link the Sydney central business district to its north-western suburbs, and ultimately the Sydney–Newcastle Freeway to Newcastle.
The North Western Expressway refers to the section between the Western Distributor and Victoria Road at Huntleys Point, while the Lane Cove Valley Expressway refers to the section between Huntleys Point and Wahroonga, passing through Lane Cove Valley.
The route was planned as early as 1962 (even providing a proposed freeway "dotted line" in the UBD street directories of the 1970s).
The original route was to start at the Western Distributor, connecting to Gladesville Bridge via a new elevated freeway.
[4] After cancellation, the section between Fig Tree Bridge and Lane Cove Road became part of the proposed Castlereagh Freeway.