Welcome to the Forum Pezhk, as far as Civil Engineering in Auckland ATM the largest construction job in NZ history is taking place - Its called
Sylvia Park http://www.kipt.co.nz/n20.html and is in Auckland off the Mount Wellington Highway, this project is BIG and there is plenty of Civil work in Auckland. The Park consists of 24 hectares of land in the heart of Auckland's south-eastern isthmus.
Kiwi Proprty Trust proposes to develop the site into a world-class 'town centre' featuring a wide range of retail, commercial and community facilities.
It really depends which side of civil engineering you want I know there is lots of building projects in Auckland 30+ tower cranes (more than there has ever been) and in Nelson there is always Civil projects with MW and water projects out of their ears.
But I know that Project Managers can manage a footy team so you'll be alright!