First section of high voltage cable installed in the Northern Busway

30 March 2012

Photo of the Northern BuswayA key milestone in Transpower’s grid upgrade project has been achieved with the first section of high voltage underground cable installed in the Northern Busway.

Project Director Paul Duffy acknowledged the efforts of all those working on the project to achieve this critical step in reinforcing the power supply into Auckland and Northland.

“In our planning we were aware of the potential to disrupt thousands of busway users and will continue to work with Auckland Transport and NZTA to implement measures to minimise the effect of our work.”

These include giving priority to buses heading south in the morning and north in the evening to take account of peak travelling times, restricting activities so that only sections of the busway are affected at any one time, and using portable traffic signs to manage traffic flow.

“Currently two work sites are open with construction on another two sites opening in the mid April There will be no more than four sites open at any one time,” Mr Duffy said.

Work in the busway started near Constellation Drive and will continue through to a new substation being built at Wairau Road, before returning to the motorway corridor to complete the section between the Auckland Harbour Bridge and Wairau Road substation.

The work comes under Transpower’s North Auckland and Northland (NAaN) project to reinforce the power supply into the upper North Island and address the region’s current reliance on a single transmission line between Otahuhu and Henderson.