North-South Bypass Tunnel
The CLEM7 Tunnel, known as the North-South Bypass Tunnel during construction, is a new toll road built under the Brisbane River. It comprises two 4.8 kilometre twin-lane tunnels which bypass the city's central business district, significantly reducing congestion.
In addition to being the longest road tunnel in Australia, it is also the most advanced with many safety features. In the event of a fire or explosion, a high-tech ventilation system comprising 100 jet fans will rapidly extract smoke to a longitudinal duct high above the road deck.
Ancon designed and manufactured the stainless steel suspension system used to hold the immense concrete slabs which form the duct.
Each component of the system performs an essential structural function within a highly corrosive environment. The welded sections were subject to particularly demanding quality standards and each underwent an intense test and inspection programme prior to despatch to confirm its integrity.
Ancon also fabricated the 33,000 light gauge stainless steel posts used to support the architectural lining around the tunnel walls. A dedicated production cell produced 1,900 posts per week to meet a strict site schedule.
Related Products
Special Fabrications
High Integrity Steel & Stainless Steel Fabrications
Latest News
Ancon Upgrades Membership of 'Think Brick Australia'
Ancon are pleased to confirm that we are now Associate Members of Think Brick Australia in support of their aim to inspire contemporary brick architecture and building design in all areas of the built environment including commercial, residential and landscape.
Ancon Supports the Concrete Institute of Australia’s National Conference
Ancon will be exhibiting at the 29th Biennial Concrete 2019 Conference, between 8-11 September in Sydney, where we will showcase a range of high integrity steel fixings engineered specifically for structural concrete construction.