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Annabell breaks through Legacy Way's second tunnel

13 June, 2013

Annabell breaks through Legacy Way’s second tunnel

13 June 2013

Large-scale tunnelling on Legacy Way is complete in record time, with the project’s second tunnel boring machine, Annabell, completing its journey and resurfacing at Kelvin Grove today.

Two 110 metre-long, 2,800 tonne tunnel boring machines began work on the 4.6 kilometre project in Toowong in late 2012, with the first, Joyce, completing its journey in late April.

Federal Member for Rankin Craig Emerson today joined Brisbane City Council Lord Mayor Graham Quirk and the Legacy Way project directors on site to mark the breakthrough.

Dr Emerson said the borers completed tunnelling in record time, averaging rates 15–20 metres a day – up to 240 metres a week – during operation, which is unprecedented for machines of their size.

“This is a project that will make a real difference to travel times in Brisbane, and is something residents here should be very excited about,” Dr Emerson said.

“Today’s achievement is a testament to the crews that have worked so hard operating these machines.”

Once open in 2015, Legacy Way will nearly halve current peak hour travel times between the Centenary Bridge and Inner City Bypass. It will also help to reduce congestion on Milton Road and Coronation Drive, along with traffic pressures on some local streets.

The tunnel borer ‘Annabell’ is named after Annabell MacKinney, the daughter of the late Lance Corporal Jared MacKinney who was killed in action in Afghanistan in 2010.

Cr Quirk said the machines had travelled a combined 8.6 kilometres from Toowong to Kelvin Grove, working day and night to deliver the vital infrastructure project for Brisbane.

“In just over nine months, both these machines have made light work of tough ground conditions,” he said.

“More than one million cubic metres of spoil was excavated and transported to the Mount Coot-tha Quarry via a spoil conveyor, eliminating more than 96,000 spoil truck movements from local streets.”

“Legacy Way will also help to reduce congestion on Milton Road and Coronation Drive, along with traffic pressures on some local streets.”

Legacy Way is the 4.6 kilometre road tunnel that will connect the Western Freeway at Toowong with the Inner City Bypass at Kelvin Grove.

The Australian Government committed $500 million to the $1.5 billion project through the Nation Building Program.

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