Client:                  
Redland City Council Queensland Government Aquatic Paradise Dredging project PDG-30448-1.
Location:                 
Wood Channel and Aquatic Paradise Canals Moreton Bay Marine Park, Queensland Australia.

In January 2009 CDC began dredging works in the Wood Channel for the Redland City Council. The project posed a set of unique challenges due to the extreme nature of the tides and currents in Moreton Bay. Added to this were challenges around environmental management because the dredge area is inside a protected marine park, world renowned as a habitat for the endangered Dugong marine mammals.
CDC consulted with experts and worked within strict environmental guidelines to ensure zero impact on the marine mammals’ native sea grass feeding habitat while dredging. The CDC in house engineering team developed a custom-built turbidity management system to ensure no negative impact on the environment while dredging took place.
CDC was responsible for maintaining a water-testing program both within a perimeter of the dredge area and the disposal area utilising the latest in testing protocols.
CDC deployed two super long reach excavators operating from their purpose built spud hopper barges. These units are fitted with the latest generation 3D GPS digging aid systems to ensure maximum efficiency during the dredge programme. CDC also deployed their work punt fitted with underwater survey equipment so that a real time post dredge survey could be undertaken on a twice-daily basis to alert of any remedial issues to be attended to.
Dredged material was transferred into CDC owned self propelled Soundchem bottom discharge barges for transport to the dump disposal area.
 
Client Reference:
Redland Shire Council
Mr David Humphrey
Technical Officer – Special Mtce Project Delivery Group
Phone +61 407 751 285