That’s why, as you drive along the Southern Motorway from Orams Road Bridge to Papakura, you can expect to see construction activities between the Southbound and Northbound lanes. We are constructing safer, solid concrete median barriers that will provide clear separation between traffic flows. A variety of construction methods are being employed, including precast, cast in-situ and “slipforming” technology.
The new barriers have a core of steel cables around which the concrete is cast, and are built to withstand high speed impacts by both cars and trucks.
The central medians will also feature wider asphalt shoulders for emergencies. While grassed areas have been removed, the final landscaping design will ensure we retain a green corridor.
New barriers are being built along the median of the whole Southern Corridor Improvements Project area, and in some places also along the edge of the new motorway shoulders.