Feature Projects SH1 Transmission Gully Specialisation: Transport Infrastructure SH3 Te Ahu a Turanga – ManawatÅ« Tararua Highway Specialisation: Transport Infrastructure SH1 Auckland Northern Corridor Improvement Specialisation: Transport Infrastructure SH1 Waikato Expressway Huntly Section Specialisation: Transport Infrastructure Vector WERO – Whitewater Rafting Park Specialisation: Commercial Infrastructure Stevenson Aggregates Drury Quarry Specialisation: Mining KiwiRail Southdown Road 35 & 36 Upgrade Project Specialisation: Rail Project Hobson, Auckland Specialisation: Tunnel & Shafts