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Stone Strong Walls for 17 Mile Rocks Road Improvements

Posted on: November 1st, 2015

Newly completed Stone Strong Walls

Stone Strong Walls used on the 17 Mile Rocks Road improvements

17 Mile Rocks Road is a sub-arterial road that links the ever-growing Centenary suburbs of Brisbane with the inner west. As a result of new residential development in the area, 17 Mile Rocks Rd was unable to cope with increased traffic volumes. This was particularly the case at the Duporth Avenue intersection.


The Brisbane City Council undertook a traffic improvement program that required the road to be realigned to ease congestion. Safety would be improved by increasing the length of the merge lane.  New pedestrian pathways and a bicycle lane were also incorporated in the project.


The original system specified in the tender documents was a geo-grid reinforced soil /small segmental block design. Stone Strong Walls – the Big Block system – was offered by Concrib as a design & construct alternative engineered solution.  The Stone Strong retaining wall system put forward by Concrib’s designers was a near-vertical Gravity Design.  It covers a total wall area of approximately 700 square metres and has a maximum wall height of 5.0 metres.

Stone Strong Walls save time, look great.


With the Stone Strong system, we were able to greatly reduce the amount of excavation required for the select –fill reinforced soil zone as well as embedment depth of the small-block system, yielding a substantial saving in both time and excavation volume.  The great aesthetics of Stone Strong’s chiselled-granite facing also played a part in the selection of the retaining wall.


The bottom line was a great looking wall, fit for purpose, supplied and constructed by Concrib with a cost saving to the Brisbane City Council. The only delays experienced were due to wet weather; the client was satisfied with the finished result; the traffic is now flowing smoothly and merging is safer.

Need an engineered retaining structure?

Talk to the experts at Concrib. We have the knowledge and experience to tackle a variety of earth stabilisation, and construction projects.  Furthermore, our administration infrastructure is built around the needs of engineers, contractors and developers, so dealing with us is easy.

Please contact us on 1800 02 1800, or click here to see more examples of Stone Strong Walls.


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