Friday, 18 December 2020, 4:22 pm
Queenstown Lakes District Council (QLDC) will be changing
its approach to completing a major wastewater upgrade
underway in the Queenstown Town Centre, due to unforeseen
and unusual ground conditions.
QLDC Chief Engineer
Ulrich Glasner confirmed that the plan to install 870m of
wastewater pipe under the Queenstown Town Centre via a
method called horizontal directional drilling is having to
change having encountered some unexpected
materials.
“While we spent considerable time and
effort completing geotech investigations along the pipeline
route to determine the suitability of horizontal directional
drilling, we hit what is likely to be prehistoric timber 20
metres underground. That’s twice the height of the Naylor