Stormwater installation (as Sub-Contractor to Fulton Hogan) on the Cobham Dr/Wairere Dr Interchange , Including deep excavations and 50+ manholes up to DN 2550 and 3km of stormwater pipes up to DN 900.
Stormwater upgrades in Stewart Street and Queen Street included replacement of existing stormwater pipelines, catch pits and manholes and installation of 60 metres of pipe; sump leads, manholes, catch pits and concrete sumps.
Involved three waters deep drain laying through built up residential street and public reserve. Existing services alignments were significantly different to plans and resulted in a collaborative approach to design.
This project required the Installation of all services across a bridge crossing to the Rangitahi Peninsula. This included 8 x DN 150 ducts and a DN 450 PE water pipeline. This project required working at heights, working around other services and working with the harbour tidal flows.