The Southern Corridor Improvements Project covers the stretch of Southern Motorway (SH1) from the SH20/SH1 connection at Manukau down to Papakura in the south. The Project includes additional lanes in both directions, upgraded Takanini Interchange and a 4.5km shared use pedestrian / cycle path.
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The purpose of the project is to address existing bottlenecks at several locations along the Southern Motorway to provide a more reliable trip for all road users. There are also known safety risks at the Takanini Interchange, particularly at the northbound merge onto the motorway, which will be addressed as part of the Project.
Rapid population growth is expected in this area over the next 30 years. We need to meet the immediate needs of the city's growth as well as future proofing for the longer-term.
Improved journey reliability on the Southern Motorway (SH1).
More lanes to improve traffic flow.
Upgraded Takanini Interchange to improve safety and traffic flow.
Improved connections between the local roads and state highway network to ease congestion.
Improved walking and cycling facilities to connect communities.
Improved safety barriers and lighting.
New or improved noise walls, urban design and landscaping.