Technical advice as part of the TCAP project confirmed that beach nourishment alone would not be viable to protect property at risk. Sand available in sufficient quantity is finer grained, which means that;
- More sand would be required than previously anticipated - more than doubling the cost; and
- The additional sand volume would likely bury threatened sea stars and sea grass beds.
There is also significant risk that if nothing is done, Bambra Point would separate from Bambra Reef with accelerated erosion then occurring along the Point properties. This has been recognised in the most recent report from Water Research Laboratories at the University of New South Wales.
Other reports on Roches Beach and Bambra Reef
- Beach sand profile at Roches Beach - Report(5148 kb)
- Coastal Hazards - Adaptations - Part 1(1696 kb)
- North of Bambra Reef at Roches Beach - beach sand profile(2489 kb)
- Roches and Cremorne Beaches - habitat mapping bathymetry and sediment analysis - dune nourishment(1163 kb)
- Roches Beach coastal hazard lines reassessment(6296 kb)