By the numbers

3,500,000 cubic metres of earth shifted - that’s 102 rugby fields piled 5m high

1,400,000 newplants over 140 hectares

70,000 cubic metres of concrete poured - enough to lay a footpath from Wellington to Auckland $630 million to build 18km long from Mckays Crossing to Peka Peka 18 newbridges 16 kilometres of shared pathway for cyclists, walkers and, in most sections, horses

14 hectares ofwetlands created