‘The detailed scope of works includes the construction of a 280m-long, sand-filled bag embankment from about 50m south of the southern groyne toward the artificial headland,’ Mayor Tracey Roberts said.
‘The southern end of the sand-filled bag embankment will be constructed to blend into the sand dunes.’
Mrs Roberts said they would place 20,000 cubic metres of sand along the edge of the car park.
She said a limestone retaining wall along the edge of Frederick Stubbs Park was included in the scope of works, but subject to a council decision on March 4 when community consultation would be considered.
‘In the meantime, the City is continuing to monitor the site and recently undertook some maintenance works involving the replacement of rock armour along the carpark batter north of the southern groyne,’ the mayor said.
‘Instruments to record waves, water level and currents have also recently been deployed offshore of the site as part of the long-term study to better understand the processes contributing to sediment transport.’
Mrs Roberts said it would help engineers design a long-term solution to preserve the coastline in Quinns Rocks.
At the community information session on January 29, the City’s infrastructure maintenance manager Harminder Singh said potential contractors had proposed filling the four-tonne bags with sand, filling about 40 bags a day.
‘Clean sand from the dunes will be used to fill the bags,’ Mr Singh said. ‘Excess sand will be put in front of the bags on the beach as sand renourishment.’
One of the ‘Save our foreshore Quinns beach’ group founders, Nat Sangalli, asked about access to the beach over rocks around the carpark, and Mr Singh said it may require a staircase similar to one in Two Rocks.