Better Boating Victoria MAHERS LANDING BOATING FACILITY UPGRADE Functional Design Report February 2021 Mahers Landing Boat Ramp Upgrade Functional Design Report Contents 1 Introduction .......................................................................................................................................................... 1 2 Background .......................................................................................................................................................... 2 2.1 Victorian Coastal Strategy 2014 ............................................................................................................... 2 2.2 Central Regional Coastal Plan 2015 ........................................................................................................ 2 2.3 Report for Maher's Landing Boat Ramp - Boating Action Plan (GHD, 2011) ....................................... 2 2.4 Mahers Landing Boat Ramp - Demand and User Needs Analysis (Ainley Coast & Environment, 2017) 3 3 Coastal Processes ................................................................................................................................................ 4 3.1 Wave Climate ............................................................................................................................................ 4 3.2 Water Levels ............................................................................................................................................... 4 3.3 Currents ....................................................................................................................................................... 5 3.4 Sediment Transport and Beach Recession .............................................................................................. 5 4 Marine and Terrestrial Ecology ........................................................................................................................... 7 4.1 General ....................................................................................................................................................... 7 4.2 Shore Birds ................................................................................................................................................... 7 4.3 Fish (GHD, 2011).......................................................................................................................................... 8 4.4 Marine Benthic (GHD, 2011) ...................................................................................................................... 8 4.5 Marine Flora ................................................................................................................................................ 8 4.5.1 Spartina ................................................................................................................................................... 8 4.5.2 Seagrass (GHD, Chapter 6.2.1) ............................................................................................................ 9 4.6 Terrestrial Flora ............................................................................................................................................ 9 4.7 Dredging ..................................................................................................................................................... 9 5 Marine Infrastructure ......................................................................................................................................... 10 5.1 Boating Demand ...................................................................................................................................... 10 5.2 Site Survey ................................................................................................................................................. 10 5.3 Bathymetry ................................................................................................................................................ 11 5.4 Coastal Erosion and Inundation Protection .......................................................................................... 12 5.4.1 Coastal erosion .................................................................................................................................... 12 5.4.2 Coastal inundation .............................................................................................................................. 12 5.5 New Boat Ramp and Boat Holding Structure ....................................................................................... 12 5.5.1 Design vessel ........................................................................................................................................ 12 5.5.2 Boat ramp design criteria ................................................................................................................... 13 5.5.3 Boat holding structure design criteria ................................................................................................ 14 5.5.4 Kayak/Canoe Landing........................................................................................................................ 17 5.6 Wave Climate Mitigation ........................................................................................................................ 18 5.6.1 Wave attenuation ............................................................................................................................... 18 5.6.2 Foreshore erosion mitigation ............................................................................................................... 18 12004-final report 19 February 2021 Mahers Landing Boat Ramp Upgrade Functional Design Report 5.7 Options for marine infrastructure upgrade ............................................................................................ 19 5.7.1 Three options from GHD ...................................................................................................................... 19 5.7.2 Adjustments to Option 3 ..................................................................................................................... 21 5.7.3 One boat ramp lane or two? ............................................................................................................. 21 6 Land-side Infrastructure .................................................................................................................................... 22 6.1 Car Park .................................................................................................................................................... 22 6.1.1 Car parking layout and details .......................................................................................................... 22 6.1.2 Car park landscape ............................................................................................................................ 24 6.1.3 Car park levels and drainage ............................................................................................................ 24 6.1.4 Street lighting and webcam ............................................................................................................... 24 6.2 On-Land Approach to the Boat Ramp .................................................................................................. 25 6.3 Rigging/derigging Area ........................................................................................................................... 25 6.4 Fish Cleaning Table .................................................................................................................................. 25 6.5 Toilet Block ................................................................................................................................................ 25 6.6 Improvements to the Existing Landscape ............................................................................................. 25 6.7 Signage ..................................................................................................................................................... 26 7 Options for Upgrading the Site ......................................................................................................................... 27 8 Preliminary Cost Estimates ................................................................................................................................ 30 9 Project Approvals .............................................................................................................................................. 31 9.1 Marine and Coastal Act Consent .......................................................................................................... 31 9.2 Planning Permit ......................................................................................................................................... 31 9.3 Works Permit ............................................................................................................................................. 31 9.4 Gippsland Ports Permit............................................................................................................................. 31 9.5 Coastal Hazard Vulnerability Assessment .............................................................................................. 31 9.6 Cultural Heritage Management Plan ...................................................................................................