Project Details

SH20 to SH1 Manukau Extension


SH20-SH1
Manukau City, Auckland
Purpose: To provide a motorway connection between SH20 at Puhinui Interchange and SH1 at Manukau City.
EstimatedCost: $210 m
Start Date: November 2006
End Date: August 2010
Location: Manukau City, Auckland
Engineering Features:
  • 4.5 km long four-lane motorway with new interchanges at Nesdale Avenue and Lambie Drive and motorway-to-motorway connections to SH1 and SH20
  • Provision for a third lane to be added in each direction in the future (giving six lanes in total)
  • Construction of thirteen bridges
  • Includes preparatory work towards the construction of a rail link to the Manukau city centre from the main North Island rail line
  • Motorway will provide a direct link from SH1 for motorists travelling to the airport
  • Will provide considerable relief to local roads within the Manukau city centre area
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