Geotechnical advice on appropriate to batter cliff rubble mound 50m long with a crest elevation of 1.5m CD Detailed design of new groyne could be progressed in parallel and make use of wave studies and survey Atkins Maritime Concept drawings for 3 options works at Dog Beach No supporting report provided and Engineering Pty Ltd apparently rejected in DEPI Periodic Renourishment (2013b) - Dog Beach assessment Geotextile sandbag toe protection buried under renourished beach to provide Adaption Concepts last line of defence Renourish beach using mid-scale dredging plant with opportunity to integrate Concepts for possible works at with Queenscliff sand bypassing Dog Beach Periodic renourishment required as part of management of embayment Gabion Revetment Dune protected by teatree brush filled gabions at toe of dune Shallow slope and low reflectivity selected to minimise erosion Height dependent on maximum wave run-up tbc Offshore Breakwaters Height location and dimensions designed to prevent tombolo formation and Presumably this is meant to mean prevention of a shore connected enable bypassing of longshore drift tombolo Concept could initially impact on down drift beaches until equilibrium of salient formation reached Victorian Coastal Ensure that development or protective works seeking to respond to coastal Background policy considerations for Council (2014) - hazard risks avoids detrimental impacts on coastal processes planning coastal works Victorian Coastal to lessen the effects of coastal processes on public and private land are Strategy avoided, particularly along the open coastline. Investment in new and existing coastal infrastructure is based on a life cycle A long term vision and planning approach that takes account of: framework for planning and management of the Victorian projected future erosion and inundation patterns this planning – coastline incorporates scope for the removal and replacement of structures as may be necessary and the use of trigger points to initiate adaptation responses (including an assessment of acceptable level of risk and behaviour change) cost benefit analysis that takes into account social, environmental and economic values future operating and maintenance costs and accountabilities any statutory requirements to maintain coastal infrastructure
Geotechnical advice on appropriate to batter cliff Detailed design of new groyne could be progressed in parallel and make use of wave studies and survey rubble mound 50m long with a crest elevation of 1.5m CD Atkins Maritime Engineering Pty Ltd (2013b) - Dog Beach Adaption Concepts Concepts for possible works at Dog Beach Concept drawings for 3 options works at Dog Beach Periodic Renourishment Geotextile sandbag toe protection buried under renourished beach to provide last line of defence Renourish beach using mid-scale dredging plant with opportunity to integrate with Queenscliff sand bypassing Periodic renourishment required as part of management of embayment Gabion Revetment Dune protected by teatree brush filled gabions at toe of dune Shallow slope and low reflectivity selected to minimise erosion Height dependent on maximum wave run-up tbc Offshore Breakwaters Height location and dimensions designed to prevent tombolo formation and enable bypassing of longshore drift Concept could initially impact on down drift beaches until equilibrium of salient formation reached No supporting report provided and apparently rejected in DEPI assessment Presumably this is meant to mean prevention of a shore connected tombolo Victorian Coastal Council (2014) - Victorian Coastal Strategy A long term vision and framework for planning and management of the Victorian coastline Ensure that development or protective works seeking to respond to coastal hazard risks avoids detrimental impacts on coastal processes to lessen the effects of coastal processes on public and private land are avoided, particularly along the open coastline. Investment in new and existing coastal infrastructure is based on a life cycle planning approach that takes account of: projected future erosion and inundation patterns – this planning incorporates scope for the removal and replacement of structures as may be necessary and the use of trigger points to initiate adaptation responses (including an assessment of acceptable level of risk and behaviour change) cost benefit analysis that takes into account social, environmental and economic values future operating and maintenance costs and accountabilities any statutory requirements to maintain coastal infrastructure Background policy considerations for planning coastal works
R.B22316.001.03.2.docx