page_title: Onehunga Branch
section_title: Potential future extension
hierarchical_section_title: Onehunga Branch / Potential future extension
caption_attribution_description: English: The end of the Onehunga Branch railway line. Onehunga Mall can be seen in the background. 2014
context_page_description: The Onehunga Branch railway line is a section of the Onehunga Line in Auckland, New Zealand. It was constructed by the Auckland Provincial Government and opened from Penrose to Onehunga on 24 December 1873, and extended to Onehunga Wharf on 28 November 1878. It is 3.6 kilometres in length and is single-track only.
  After being closed to passenger traffic on 19 January 1973 and mothballed in 2007, the line was reopened on 18 September 2010 with regular passenger services beginning on 19 September 2010.
context_section_description: Extension of the line to Auckland Airport has been proposed. The main barrier has been crossing Manukau Harbour between Onehunga and the suburb of Mangere Bridge. In early 2007, NZTA's predecessor Transit New Zealand announced that a project to double the width of the Mangere Bridge across the harbour would accommodate a rail link. The duplicate bridge was built to accommodate the link, and NZTA has provided for a rail corridor near the motorway as far as Walmsley Road.
  There is a proposal to build an Avondale–Southdown line, connecting the portion of the North Auckland Line on which Western Line services run, from near Avondale to Auckland Freight Centre at Southdown. KiwiRail owns most of the corridor, which leaves the North Auckland Line east of Avondale and follows Oakley Creek and the SH20 Waterview Connection motorway corridor (construction of which has made provision for the rail line's construction).
  Another proposal is to connect the Onehunga Branch at Galway Street to the Avondale—Southdown line by building a tunnel under Onehunga Mall to meet Hugh Watt Drive (SH 20), connecting to the proposed route at Hillsborough.
caption: The current end point of the Onehunga Line.
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