Contractors work to build a retaining wall after flooding
last year brought down a 100-year-old wall in Brown St,
Dunedin. Photo by Peter McIntosh
Work has started on a $380,000 wall in Brown St, Dunedin,
after the previous one was brought down last year when rain
caused significant landslips in Dunedin.
The June 2013 flooding caused slips around the city and
closed dozens of roads across the region, including State
Highway 1 to the north.
Dunedin City Council project engineer Evan Matheson said
yesterday the council had worked with the Earthquake
Commission and private insurers on the slip.
It had also spent significant time doing geotechnical
assessments to understand why the wall had failed, so the new
wall could be designed appropriately.
Mr Matheson said the previous wall, built about 100 years
ago, was not a retaining wall, as such.
As well, old drains behind the wall had become blocked over
The new wall would be made from pre-cast concrete panels,
anchored deep into the ground to make it ''nice and strong''.
The work was ''predominantly a council job'', as it was
responsible for the wall, although about half of the cost
would be paid by the New Zealand Transport Agency.
A house near the slip was ''quite stable'', Mr Matheson said.
Work began last week and was expected to be finished in