Sink­hole caused by old wa­ter pipe col­laps­ing

Auckland City Harbour News - - NEWS -

Res­i­dents who came home to find part of their road col­lapsed into a sink­hole are hop­ing the in­ci­dent was a one-off.

A col­lapsed sewer caused a hole of about three me­tres wide to form in Pon­sonby’s Is­ling­ton St last week.

The street was closed off while work­ers in­ves­ti­gated the in­ci­dent. Both the dam­aged waste­water pipe and road were re­paired overnight.

The in­ci­dent was caused by cor­ro­sion in the 80-yearold pipe, Water­care spokesman John Red­wood says. ‘‘It’s pretty rare. ‘‘We do reg­u­lar main­te­nance and in­spect them to pre­vent pen­ing.’’

The huge hole in the road dwarfed the 200 mil­lime­tre hole in the pipe, he says.

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Photo: PETER MEECHAM

Hold-up: Work­ers in­ves­ti­gate a large hole which opened up in Pon­sonby’s Is­ling­ton St.

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