Work may start soon on fixing a slip that has kept a Dunedin
road closed since storms in June.
Council staff hope contractors will be able to begin work
within weeks on installing a rock slope below Blanket Bay Rd
to fix the lower of two slips at Sawyers Bay, near Dunedin.
Council transportation policy engineer Jon Visser said the
wall would allow reinstatement of a 1m-wide gravel berm and
fence alongside the road.
The work was estimated to cost about $80,000.
The 120sq m slip was across two private properties. The
council had been talking to the property owners and once
arrangements outlining responsibilities were finalised, the
work should take six days, he said.
The road would reopen after that.
The land on which the wall would be built would remain in
private hands but the council would do the work and be
responsible for its ongoing maintenance, he said.
Plans for the bigger upper slip, under Upper Junction Rd,
were also progressing. A remedial option had been all but
agreed with the affected property owner, but final design
details and legal arrangements over the land's status were
yet to be confirmed.
At this stage, the preferred option was to install a
reinforced engineered slope over the 1200sq m slip area, to
preserve a natural look to the area while providing adequate
support for Upper Junction Rd.
An engineered slope involved digging the slope down to a hard
layer and layering a geotechnical fabric with appropriate
soil and plant cuttings, compacting the layers and building
them up to a natural-looking contour.
The cuttings would grow up through the synthetic fabric,
returning it to a natural appearance, and sucking up any
extra water that flowed down the slope.
The work would take up to six months and be done over the
summer at an estimated cost of about $250,000.
The council was in discussions with Polly Mustard, the owner
of the affected land, and ownership arrangements were still
to be finalised, Mr Visser said.
Ms Mustard, whose access to her house was cut off (this has
since been rectified by the council) and car crushed in the
slip, said she had been working with the council and its
engineers and they had been ''very supportive and
''I hope that matters can progress and that we are able to
reach a satisfactory solution for all concerned.''