Customer: Auckland District Health Board

Contract: Construct only with minor design elements

Location: Auckland, New Zealand

Construction Period: 37 months



Project Capabilities

Health and Aged Care

Fast Facts:

  • multidiscipline contract incolving civil, tunnelling, building, services installation and maintenance
  • 240 m long cut and cover tunnel
  • 2400 m2 seven-storey building
  • multiple services installation 

The Auckland District Health Board (ADHB) awarded McConnell Dowell and Built Environs, in joint venture, the construction contract for a new plant building at their Auckland Hospital. The new facility that will provide essential services including power, water, chilled water, medical gas, and diesel.

The joint venture's scope of work is truely multidiciplinary and includes:

Civil ​: Excavation and preparation of the building area including, 7500 m3 spoil; 176 pregrouted soil nails; 38 no. 1200mm building piles; 32 no 600mm diesel tank piles; 28 no. 600 mm temporary tunnel piles; ground beams, pile caps and foundation slab.  ​

Tunnelling: a 240 m service tunnel 3.5 to 4 m internal diameter. The tunnel runs under the new building and connects back to the existing hospital. It will be constructed using cut and cover methods and will include four stairwells and four access points. Approximately 1800 m3 of insitu concrete will be placed in the tunnel.​

Building: a 2400 m2, seven- storey reinforced concrete frame building, mostly industrial fit out, 1 floor of offices, 2 lifts, mix of curtain wall and precast panel façade​

Services:  2 x 2 MVA generators, 200 000 litre diesel tanks, HV substation, HV and LV reticulation through tunnel, 13 MW of chillers and cooling towers, 600 mm sched 40 chilled water reticulation feeding the entire campus environmental systems, 1,000,000 litres of water tanks, a treatment plant for onsite bore water, and reticulation for domestic, and non potable water in addition to CHW. Other services include Comms, BMS, PCMS, GCS, HV Scada, diesel, and medial gas.​

There is also a two year facilities maintenace period.