Principal: NSW Department of Commerce
Location: Lake Illawarra, New South Wales
Contract Value: $1,820,000
Completion Date: October 2007
The Lake Illawarra project involved the dredging of the channel entrance to create a 1050m long x 100m wide channel. Sand dredged from the entrance was used for beach nourishment at the southern end of Warilla beach, approx. 1.5 kms away. Additionally, a sand island was to be created as a roosting area for local and migratory bird life.
The aim of the entrance expansion was to help address and resolve issues of poor water quality within the lake. The quality of water had diminished due to a combination of development, introduction of nutrients and the overall constrictive nature of the entrance channel. Creating a larger entrance, which could be maintained, would allow increased and more constant flushing of the lake.