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The Clem7 tunnel
1.
2. Need
They have to build this tunnel because the
roads of Brisbane were started to get too
crowded. People weren’t reaching to their
destination on time.
Affect the emergency services
People get frustrated
3. What is Clem7 Tunnel
Clem7 tunnel is the longest underground tunnel in whole
Australia. Brisbane’s Clem Jones Tunnel (CLEM7) is a
faster, safer, more reliable choice for significant time
savings in cross-city travel.
Clem 7 Tunnel is 6.8 km long. It links five major Brisbane
roads including the Pacific motorway, Ipswich road,
Lutwyche road, Inner city bypass and Shavston Avenue at
Kangaroo point. The Clem 7 consists of two separate
tunnels with one each dedicated for north-and-south
bound traffic. The main tunnels were excavated by two
massive tunnel boring machines that were more than
260m long and 12.4m in diameter.
4. Amazing Project
Clem7 was the biggest & first under river project
The cost to build the whole tunnel was 3.2 billion dollars.
11 000 workers involved
Cost of hiring 2 boring machines from Germany was $50
mn each
John llet was the architect of Clem 7.
This tunnel connects Woolloongabba, Kangaroo point
and to Bowen Hills.
Started on September 2006 & finished 18th March 2010
5. Construction Facts & Figures
Length of tollway - 6.8km
Length of tunnel - 4.8km
Lowest point - 60 metres under the Brisbane River
Cross passages - 41 connecting the two tunnel tubes
Rock to be excavated - 3.5 million tonnes
Tunnel lining segments - 38,000
Concrete used - 280,000 CBM
6.
7. The Exhaust Towers
Constructed two exhaust towers
One at the North side and the other one to
the south.
People in the tunnel need oxygen to breathe.
Exhaust towers send oxygen in the tunnel.
8.
9. Named Clem7
As Brisbane’s longest serving Lord Mayor, Clem Jones oversaw
the city’s growth from a sleepy country town to a vibrant sub-
tropical metropolis during his time in office from 1961 to 1975.
A great advocate of progress, Clem Jones was responsible for
Brisbane’s first town plan and established much-needed
infrastructure such as sewerage, water and sealed road networks.
He built new roads and developed city gardens, sporting fields and
swimming pools.
Clem Jones passed away in 2007, aged 89.That’s why it has a 7 at
the end of Clem7. In recognition of his enormous contribution to
making Brisbane the great place it is today,