Developer allays subsidence fears
Fears Silverwood is a ticking time bomb of slip and subsidence problems have been rubbished by the new suburb’s developer, Carrus.
Silverwood borders a slip-prone area of south-east Whitby, where several properties suffered devastating damage after a storm on June 20. The Whitby properties were developed by Whitby Costal Estates, and their problems will be repeated in Silverwood, an affected resident believes.
Dave Tunley of 51 Navigation Dr, lost a large corner of his section to a 2006 slip, and half a dozen of his neighbours have also suffered slips in the decade he has lived there.
The businessman agreed with residents spoken to last week that land in the area was unsuitable for development.
‘‘Have [Porirua City Council] got blinkers on? My god, would you ever build anything here?’’
Water poured out of the hills in Whitby, and runoff flooded base- ments near a house Mr Tunley built in Albatross Cl, he said.
Mr Tunley watched Silverwood properties being built not far from his home and predicted water would be a problem there.
‘‘Where they built, all that was a stream. The whole area up there will actually sink away and go.’’
Silverwood was pine forest before being developed and tree stumps were being left in the ground when properties were developed, Mr Tunley said.
‘‘Where are all the stumps? I’ve never seen the bloody stumps removed. So what’s going to happen, [water is] going to rot the stumps and water is going to channel underground and reappear somewhere. It’s not right.’’
Carrus manager Scott Adams said some sections were sold with pine trees standing and it was an owner’s responsibility to remove stumps.
The company was aware of Whitby’s slip problems and had come up with engineering and drainage solutions, Mr Adams said.
‘‘There’s always a risk, but I’m confident we’ve negated it as much as we can. If there is ever any issue, we’ll resolve it with any affected parties.’’
Of 194 sections built so far in Silverwood, three unsold sections had had slips, but Carrus had fixed them, Mr Adams said.
‘‘We haven’t lost any sections as a result of slips. We may have had some minor movement, just as everybody has.’’