The arch, measuring 101m long and weighing in at 220 tonnes, was lifted by two giant cranes weighing 400 tonnes and 280 tonnes yesterday, after being moved into position at the western end of the stadium floor on Thursday.
Yesterday's lift meant the truss now spanned the gap between the stadium's north and south stands, and workers would spend the next few days welding and bolting it permanently in place, Carisbrook Stadium Trust chairman Malcolm Farry said.
It would eventually be joined by four other trusses forming the roof's steel frame to hold the ethylene tetrafluoroethylene (ETFE) roofing in place.
"This is yet another huge milestone in the construction programme. The curvature of the truss makes this a very challenging and technical lift.
"Along with the 390-tonne lift of the main arch truss in May, this is thought to be the first time a lift of this nature has taken place in New Zealand."
