Sewer plan made more acceptable
Car parks should be the only casualties of the Central Interceptor in Mt Albert War Memorial Reserve.
Three shafts will need to be dug in the park to allow for construction, ventilation, and maintenance of the 13 kilometre pipeline that will run beneath it from 2017.
The pipeline is to replace the deteriorating sewer line that services the central Auckland isthmus and will run from Western Springs to the Mangere Wastewater Treatment Plant.
The bulk of the tunnel’s construction will happen underground and at the plant, Western Springs, and on May Rd in Mt Roskill.
The reserve is one of 16 smaller sites where shafts will be dug.
They are to be permanently covered and sit flush with the ground. It’s likely they will only be opened to vent gasses once every two to five years if a severe weather event causes a bubble in the pipe.
Construction isn’t due to start until 2017 and Watercare has been working with the Albert-Eden Local Board over the past year to come up with a blueprint for work.
The plan will see the shafts and ventilation duct constructed in the car park, rather than in the green space as was originally proposed to residents last year and objected to by some.
The new plan will also mean the shafts are built at least 40 metres away from the nearest home, rather than 15 metres.
This should help spare residents from noise and vibrations that will come from blasting needed to get through the bedrock beneath the park.
The trade-off is that the reserve will lose around 60 parking spaces, but the board will seek mitigation for them.
Albert-Eden Local Board chairman Peter Haynes says the board has found the best solution.
‘‘Whatever option we went with there are going to be some people who aren’t happy.
‘‘On the whole I think most residents will be happy,’’ he says.
Moving the work away from homes has meant moving it closer to the recreation centre.
‘‘Users of the rec centre might be inconvenienced for an hour or two when they come to visit, but that will be the extent of their inconvenience. If you were living next door there wouldn’t be much you could do,’’ Mr Haynes says.
A sound barrier is to be put up around the park during construction.