Investigative drilling delayed

A road has been cut in anticipation of a drilling project to investigate whether a hydro-electric dam could be sited on the Clutha River near Luggate. Photo by Matthew Haggart.
A road has been cut in anticipation of a drilling project to investigate whether a hydro-electric dam could be sited on the Clutha River near Luggate. Photo by Matthew Haggart.
The start of a drilling project to investigate whether ground near Luggate is capable of supporting a hydro-electric dam on the Clutha River has been rescheduled.

Contact Energy is carrying out the investigative drilling as part of four options being considered for possible hydro-electric schemes on the Clutha River.

A drilling rig had been scheduled to move in yesterday.

Contact's Clutha hydro project manager Neil Gillespie said a "moving target" for the commencement of the drilling project had changed.

The drilling rig contractor has been held up at another site in Central Otago and would start near Luggate once its commitments were completed elsewhere, he said.

An access road has been cleared for the drilling rig, which will work at a site upstream from the distinctive switchback river feature known as the Devil's Nook.

The geotechnical investigation and drilling programme near Luggate does not indicate the site is a preferred option for Contact to build a dam there, Mr Gillespie said.

Other possible Clutha River hydro dam options at Queensberry, Beaumont, and Tuapeka Mouth are at more advanced stages of geotechnical investigation, Mr Gillespie has said.