Drilling on track for completion
DESPITE hitting a couple of snags, the drilling of new sewer rising mains under the streets of Lismore is still on track to be completed within four months, according to the man in charge of the work.
Jason Coe, director of Gold Coast-based Coe Drilling, said yesterday the company was using new technology, known as horizontal drilling, at worksites in Ballina Road, Uralba Street and McLeans Park to tunnel underground, rather than digging up trenches to replace the existing rising main.
“We are not behind schedule, but we did hit a problem which will be rectified in the next few days,” he said.
Mr Coe said that due to the nature of the work, once a hole was dug a newpipeline must be immediately pulled through.
“Unfortunately, for a number of reasons, which I don’t really want to go into, we had to stop a few times,” Mr Coe said.
“Some drilling we had expected to finish earlier, but others have gone better than expected.”
Mr Coe said the Lismore City Council was not liable for any costs associated with the problems. It is understood the drilling also unexpectedly hit rock near McLeans Park.
The existing sewer main extends from the Dawson Street pump station near the caravan park, along Dawson Street, down Conway Street and through the CBD to the South Lismore sewage treatment plant at Three Chain Road.
This means the company will also drill under the river, where the depth will reach 20 metres.
City council works manager Darren Patch said council opted for the state-of-the-art technology to reduce disruptions in the CBD.
“For the Lismore situation, it is efficient, economical and, more importantly, environmentally beneficial,” he said.
“The integrity of the roadways, buildings and natural features like the Wilsons River and Hollingsworth Creek remain intact.
“And using horizontal drilling means the normal operation of the current mains can continue until the new sewer rising main is commissioned, eliminating disruptions to normal operations.”
After noise complaints from neighbours, the company also placed large shipping containers on the drilling site on Ballina Road.
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