To alleviate traffic congestion, the 4.8km M7 Clem Jones Tunnel is a $3.2B motorway project built under the Brisbane River to connect major southern to the northern arterial roads whilst bypassing the Brisbane CBD.

Drainage was required at the southern end where designers faced many challenges, in particular, with existing road contours on the busy Ipswich Road access links.

ACO’s PowerDrain, comprising heavy duty anti-shunt boltless locking grates, was specified as a substitute to traditional side inlet pits to ensure surface water is captured effectively without the need for regrading to accommodating the widening of Ipswich Road.  

Specifier:  Aecom
Product features: PowerDrain S200K with Slotted Iron grates 
Other ACO products used in this project: Other PowerDrain systems, ACO Cablemate® cable pits, ACO Access cover & frame systems

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ACO Pty Ltd

Industry leading range of pedestrian safe grates, trench drains, discreet access covers and underground stormwater tanks