Flood Management Plan - Shire of Yarra Ranges

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OLINDA CREEK No No No No Yes NoSTRINGYBARK CREEK No No No No Yes NoSTEELS CREEK No No No No Yes NoDIXONS CREEK No No No No No NoTRIB OF YARRA RIVER No No No No No NoPAUL CREEK No No No No Yes NoTRIB OF YARRA RIVER No No No No Yes NoTRIB OF YARRA RIVER No No No No Yes NoWATTS RIVER No No No No Yes NoPICANINNY CREEK No No No No Yes NoGRACE BURN CREEK No No No No Yes NoNEW CHUM CREEK No No No No Yes NoMYERS CREEK No No No No No NoDONNELLY CREEK No No No No No NoYARRA RIVER No No No No Yes NoCORANDERRK CREEK No No No No Yes NoTRIB OF YARRA RIVER No No No No Yes NoWOORI YALLOCK CREEK No No No No Yes NoWANDIN YALLOCK CREEK No No No No Yes NoSHEEP STATION CREEK No No No No No NoCOCKATOO CREEK No No No No No NoMCCRAE CREEK No No No No No NoURE CREEK No No No No No NoHODDLES CREEK No No No No No NoDON RIVER No No No No No NoTRIB OF YARRA RIVER No No No No Yes NoTRIB OF YARRA RIVER No No No No Yes NoYARRA RIVER No No Yes Yes Yes NoLITTLE YARRA RIVER No No Yes Yes Yes NoBRITANNIA CREEK No No No No No NoSLATY CREEK No No No No No NoBLACK SAND CREEK No No No No No NoHACKETT CREEK No No No No No NoSAXTON CREEK No No No No No NoLEARMONTH CREEK No No No No No NoMACKLEY CREEK No No No No No NoBIG PATS CREEK No No No No No NoMISSISSIPPI CREEK No No No No No NoCEMENT CREEK No No No No No NoO'SHANNASSY RIVER No No No No No NoO'SHANNASSY RIVER WESTBRANCHNo No No No No NoDEEP CREEK No No No No No NoSTARVATION CREEK No No No No No NoMCMAHONS CREEK No No No No No NoARMSTRONG CREEK No No No No No NoARMSTRONG CREEK EASTBRANCHNo No No No No NoYARRA RIVER No No No No No NoWALSH CREEK No No No No No NoCLEAR CREEK No No No No No NoALDERMANS CREEK No No No No No NoFEHRING CREEK No No No No No NoEUMEMMERRING CREEKUPPERNo No No No No NoHEATHERTON ROAD EASTDRAINNo No No No No No50 Melbourne Water Shire of Yarra Ranges Flood Management Plan
The extents for the 1% AEP event have been incorporated into the Shire ofYarra Ranges Planning Scheme as a Land Subject to Inundation Overlay(LSIO) across the floodplains of the creeks and as a Special Building Overlay(SBO) along the overflow paths of main drains.The existing flood overlays are constantly subject to change. Melbourne Wateris responsible for maintaining and updating the various flood overlays for theareas greater than 60 ha. The LSIO and SBO may change for various reasons:• Over time, as more of the municipality is mapped the flood extents willincrease.• As more advanced methods of modelling and/or mapping aredeveloped, the flood extents may change.• New flood areas may be introduced as Yarra Ranges continues todevelop and further flood investigations are undertaken.• Furthermore, an LSIO overlay may be reclassified as an SBO overlay if adrainage system is installed through the flood prone area, generally toserve a new development.Such investigations require an update of the existing SBO and LSIO in theplanning schemes (planning scheme amendment). Additional propertiesaffected by the new flood extent need to be included under either an LSIO orSBO overlay.Melbourne Water has also surveyed many of the floor levels within the floodmapped catchments to categorise the building floor levels that are subject toinundation. Recently, Melbourne Water and the DSE in collaboration withmany of the local Councils have completed a LiDAR survey of MelbourneWater’s area of responsibility which included the Shire.Melbourne Water’s pipe and pit GIS information shows invert levels, pipesizes, pit types and pit invert levels in all locations and is generally wellbacked up by ‘as constructed’ plans of all assets. Yarra Ranges’ pipe and pitGIS information shows the size of the asset and maintenance responsibility inall locations as well as the length, inverts and grades. Together, the availableasset information is considered to be complete and suitable for use in anyfuture mapping projects.8.2.2 Proposed Mapping ProgramFuture flood mapping to be completed by Melbourne Water is based on anumber of factors including the presence of existing mapping, the quality ofexisting mapping and the safety risks of potential flooding. Currently, the LittleYarra from the confluence with the Yarra River through to Blackwood Creek isMelbourne Water Shire of Yarra Ranges Flood Management Plan 51
Page 1 and 2: Flood Management PlanFor Shire of Y
Page 3 and 4: Table of Contents1 Executive Summar
Page 5 and 6: 1 Executive SummaryThis Shire of Ya
Page 7 and 8: Figure 1Flood Management Roles and
Page 9 and 10: ability to respond in an informed a
Page 11 and 12: Figure 2Shire of Yarra Ranges ward
Page 13 and 14: Figure 3Main waterways within the S
Page 15 and 16: 6.4 FloodingFor the purposes of thi
Page 17 and 18: Figure 5100 Year Flood Extent, Shir
Page 19 and 20: Figure 6Study Areas within the Shir
Page 21 and 22: YarraRiver TribDonRiverYarra RiverB
Page 23 and 24: WooriYallockCreekHoddlesCreekSlatyC
Page 25 and 26: MuddyCreekFigure 11Cardinia Creek S
Page 27 and 28: • Bungalook Creek is located in t
Page 29 and 30: OlindaCreekLilydaleEastDrainLogCree
Page 31 and 32: NewChumCreekMyersCreekDonnellyCreek
Page 33 and 34: SteelsCreekDixonCreekPaulsCreekFigu
Page 35 and 36: 6.7.1 Drainage & Assets Investigati
Page 37 and 38: Figure 24Customer Complaints - Shir
Page 39 and 40: Figure 26Engineering Studies - Shir
Page 41 and 42: Emerald SES unit which is located o
Page 43 and 44: BIG PATS CREEK 5840 MediumMISSISSIP
Page 45 and 46: 7.2 Existing Flood Risks within the
Page 47 and 48: 7.3.2 Urban Consolidation and Infil
Page 49: information to support Flood Emerge
Page 53 and 54: waterways and overland flows within
Page 55 and 56: een and should be taken. This inclu
Page 57 and 58: fund the required drainage upgrades
Page 59 and 60: • To regulate or prohibit any use
Page 61 and 62: 10 Improvement PlanThis Part of the
Page 63 and 64: 567Little known about recreationfac
Page 65 and 66: 161718Location of complaints caninf
Page 67 and 68: 12 How this document was developedT
Page 69 and 70: 13.1 GLOSSARYBelow are terms define
Page 71 and 72: ID Waterway Name ID Waterway Name I
Page 73 and 74: ID Waterway Name ID Waterway Name I
Page 75 and 76: Melbourne Water Shire of Yarra Rang
Page 77 and 78: Melbourne Water Shire of Yarra Rang
Page 79 and 80: APPENDIX B - ROLES AND RESPONSIBILI
Page 81 and 82: APPENDIX C - FLOOD RISK ASSESSMENTB
Page 83 and 84: APPENDIX D - FARM DAMS IN THE SHIRE
Page 85: APPENDIX E - MELWAYS MAPS SHOWING 1
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86 Melbourne Water Shire of Yarra R
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Flood Management Plan - Shire of Yarra Ranges

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