GHD Flood Mapping Review City of Stonnington 2008

Stonnington City Council

Report for Stonnington Flood Mapping Revisions 2008

October 2009

I. •'

Contents

1. Introduction and Background

1.1 Introduction

1.2 Existing Flood Plain Mapping

2. Scope of Revision 2

2.1 Mapping Locations 2

2.2 Deliverables 4

3. Available Information 5

3.1 Existing Models 5

3.2 New Council Drainage Information 5

3.3 Site Inspections 5

3.4 Ground Survey 5

3.5 Property Information 6

3.6 Floor Level Survey 6

3.7 Aerial Photography 6

4. Technical Methodology 7

4.1 Introduction 7

4.2 Overview 7

4.3 Hydrology 8

4.4 Hydraulic Modelling 12

5. Flood Extent Mapping 15

5.1 Introduction 15

5.2 Extent of Inundation 15

5.3 Plan Notes 16

6. Flood and Safety Risk Assessment 18

6.1 Introduction 18

6.2 Flood Risk 18

6.3 Safety Risk 19

7. GIS Output 20

7.1 Introduction 20

7.2 Flood Extents 20

Stonnington Flood Mapping Revisions 2008 Report

31/23544/165358

7.3 Floodway Risk Zones

20

7.4 Mapping Limits

21

7.5 Catchment and Subcatchment Boundaries

21

7.6 Spot Flood Depths at Street Intersections

21

7.7 Spatial Property Database

22

7.8 100 year ARI Flood Level Contours

23

8. Recommendations

24

9. References

25

Table Index Table 3.1

Table 4.1

Table 4.2

Table 4.3

Table 4.4

Table 4-5

Table 6.1

Table 6.2

Information obtained from Council

Adopted k, values

Default Fraction Impervious

Residential Fraction Impervious

Rainfall Intensity (mim/h) for Stonnington

Bed Resistance Values for 2D Network

Summary Flood Risk Statistics

Safety Risk Data

5

9

10

10

11

13

19

19

Figure Index Figure 2.1 2008 Flood Plain Mapping Revision Locations

3

Appendices A Flood Maps

B Description of Previous Methodology

31/23544/165358


1. Introduction and Background

1.1 Introduction

Stonnington City Council commissioned GHD to revise and update some areas of its flood plain mapping. These revisions were requested as a result of drainage improvement works undertaken in the last four years or so, and anecdotal flooding information on two storm events in January 2004 and December 2007. The areas of revision were broken down into five packages for modelling and mapping.

1.2 Existing Flood Plain Mapping

Stonnington's existing flood plain mapping is based on several projects undertaken by Egis Consulting Australia (now GHD) and GHD over the last ten years.

The original mapping was completed in September 1999 with a report (Egis 1999), hardcopy flood maps and several GIS layers being produced. In May 2001, the Stonnington City Council requested that Egis provide flood plain mapping services for 28 additional locations, which was completed in November 2001 (Egis 2001). A further revision to existing areas of mapping was undertaken by GHD in 2003 (GHD 2003), utilising the same information and models as for the previous mapping but with additional drainage and survey details provided by Council incorporated into the models. Further modelling and mapping of the Yarra Street Catchment was also undertaken by GHD in 2004.

The requirements of the original 1999 mapping were to:

Prepare plans showing the extent of inundation resulting from flows in excess of the capacity of Stonnington City Council's drainage systems in 100, 50 and 20 year average recurrence interval flood events;

Identify buildings subject to flooding to above floor levels in events up to the 100 year event;

Identify the risks, in terms of velocity and depth, associated with leaving properties during a flood event; and

Produce all spatial data in a GIS format for use with MapInfo.

The requirements for the 2001 mapping were similar to above but were more directly linked to assisting with the generation of Special Building Overlays in the Planning Scheme. Hence, the focus was on mapping only and not on the property database, which was not produced. The property database was however updated as part of the 2003 mapping project.


31/23544/165358

2. Scope of Revision

2.1 Mapping Locations

The City of Stonnington nominated several areas of flood plain mapping for revision. These areas were grouped into five packages for modelling and mapping, as shown below in Figure 2.1. The modelling requirements of each package, paraphrased from Council's Brief dated 28 April 2008, are given below.

2.1.1 Package 1 (Yarra Street Catchment)

As a result of a reduction to the Yarra River Land Subject to Inundation Overlay (LS10), mapping of the Yarra Street Catchment was required to extend to the revised LSIO.

Recent drainage improvement works in the southern end of Davis Avenue and eastern end of Alexandra Street necessitated remapping of the area.

It was also requested that mapping be extended further westwards along Fawkner Street and Nicholson Street until the flood extent was clear of properties.

A proposed residential development at 76 Long Street (corner of Powell Street) may also have an impact on flood extents.

2.1.2 Package 2 (Wrights Terrace)

Council indicated that the laneway at the rear of 8 to 28 Wrights Terrace actually grades towards Wrights Terrace, and does not contain a low point at the rear of 18 Wrights Terrace as suggested in previous mapping. It was requested that the mapping in this area be revised.

2.1.3 Package 3 (East Street and High Street)

A storm in January 2004 (estimated to be approximately a 50 year ARI storm event) resulted in flooding of properties between Ascot Street and East Street, at the northern end of Eva Street. It was requested that this flow path be mapped

It was also requested that mapping be extended further westwards along High Street to Park Street, or until the flood extent was clear of properties.

31/23544/165358

Stonnington Flood Mapping Revisions 2008

2 Report

Figure 2.1 2008 Flood Plain Mapping Revision Locations


31/23544/165358 3

2.1.4 Package 4 (Rotherwood Drive and Peverill Street)

In December 2007, 20 mm of rain was recorded in 12 minutes at a Melbourne Water rain gauge on Gardiners Creek (estimated by others to be a 50 year ARI storm event). This storm resulted in flooding through 7 and 9 Rotherwood Drive. Previous mapping did not cover these properties, hence it was requested that the mapping include all properties between Rotherwood Drive and the reserve at the rear.

The overland flow path from the low point in Peverill Street has not been mapped. A recent residential development at 4 Peak Street indicated that the rear of 2, 4 and 6 Peak Street may be affected by overland flow from Peverill Street. It was therefore requested to undertake mapping through Peverill Park.

2.1.5 Package 5 (Argyll Street)

Significant flooding occurred at a low point in Argyll Street between Stirling Avenue and Ayr Avenue during storm events in January 2004 and December 2007. It was therefore requested to undertake mapping from the rear of 94 Argyll Street to The Boulevard.

It was also requested to undertake mapping from the low point opposite 7 and 9 Argyll Street to the Malvern Valley Public Golf Course.

Neither of these areas had been mapped before.

It was intended to utilise existing cadastre, planning information, aerial survey, models, extents and databases, where available from the previous mapping, together with Council's more recent information on ground level surveys, storm events and new drainage works, in the mapping of the above areas. Details of the actual information used are described in Chapter 3.

2.2 Deliverables

The deliverables for this project include:

GIS layers of the 20, 50 and 100 year flood extents, hazard polygons, 100 year ARI water surface contours, flooding depths at road intersections and revised property database, as described in Section 7; and

A set of 1:2,500 Al hardcopy maps of the entire City, along with a pdf file of each map, which will enable reproduction at Al or scaled at 50% to A3 size.

All GIS deliverables include data in the current revision areas only (i.e. those shown in Figure 2.1).

31/23544/165358


4 Report

3. Available Information

3.1 Existing Models

Existing hydrologic and hydraulic models from the previous mapping projects undertaken by Egis and GHD were adopted as a starting point for all modelling under the current project. Care has been taken when using these models to confirm that details accord with current information. In a few cases, discrepancies such as superseded pipe details have been identified, discussed with Council and corrected.

The hydraulic models from the previous mapping projects were initially based on drainage base maps for both the old Malvern and Prahran areas and updated over time with details from design drawings where available.

3.2 New Council Drainage Information

The relevant hydraulic models from the previous mapping were modified to include revised drainage details based on information provided on the plans in Table 3.1.

Table 3.1 Information obtained from Council

Plan Name Number

Davis Av & Alexandra St Drain Improvements, Sheets 4 to 10 of 10 2006-008

Eva Street — Drainage Improvement (East Side) (11 sheets) 2007-015

Council also made available for the first time their drainage GIS layers in MapInfo format, which were used to verify or update drainage details in the hydraulic models.

3.3 Site Inspections

Site inspections were undertaken over the duration of the project at select locations to verify flow paths and pit locations, and to appropriately consider the effects of fences, buildings and vegetation.

3.4 Ground Survey

All previous flood mapping had utilised photogrammetric survey information based on aerial photography taken in 1998. This photogrammetry however, did not cover any of the Package 5 area (which was not previously mapped). Aerial laser survey, or LiDAR, was obtained in 2007 for much of metropolitan Melbourne, including all of the City of Stonnington. With the LiDAR supplied by the City of Stonnington being more recent and providing a more complete coverage than the photogrammetry, it was adopted in this project for all five package areas.

Digital Terrain Models (DTMs) were created for each package area based on the LiDAR.

31/23544/165358


5 Report

3.5 Property Information

The City of Stonnington made available a MapInfo layer of property polygons covering the entire municipality. This information was used to identify flood affected properties in the five package areas mapped as part of this project. The database of flooded properties compiled during previous flood mapping projects has not been updated so will not necessarily reflect current property boundaries.

3.6 Floor Level Survey

Floor level survey was undertaken in 1999 for the original mapping project. This survey information was used to determine the flood risks of individual properties. No additional floor level survey has been undertaken for the subsequent two projects, preventing the assessment of flood risks in some areas. This is discussed further in Section 6.2.

3.7 Aerial Photography

Reference was made to aerial photography dated 2006 for the current packages to assist with assigning surface roughness and to confirm observations made during site inspections.

31/23544/165358


6 Report

4. Technical Methodology

4.1 Introduction

All previous mapping used a fairly consistent methodology which is described in previous reports (GHD 2003), an extract of which is included as Appendix B for easy reference. As the current packages required at the very least a substantial update of the existing hydraulic models it was decided to adopt newer modelling approaches. Some of the key features of the adopted modelling approach are summarised below and contrasted with that used for the previous modelling:

Unsteady State (time varying flows) Previous modelling was steady state, where constant peak flows were derived in RORB and input into the hydraulic model. With unsteady state modelling hydrographs (time varying flows) are generated for each subarea in RORB and routed in the hydraulic model. Many storm durations are analysed and the envelope of peak results is determined from these hydraulic modelling results.

Integrated 10 and 2D hydraulic model The two dimensional (2D) domain is used to model the overland flow while the pipes are modelled with one dimensional (10) elements similar to those found in the hydraulic models used previously. The primary benefit of the two dimensional hydraulic model for urban areas is that flows can find their own path through the terrain rather than being restricted to predefined paths.

These improvements come at the expense of increased computational effort which has previously restricted their application although with increases in computing power and software refinements the use of integrated 10/20 models is now becoming more common.

The hydrology was still undertaken using RORB with parameters consistent with previous modelling. One feature of the current methodology is that most of the routing occurs within the hydraulic model and hence the estimate of the RORB routing parameter kc is less critical. On this basis, kc values were selected with reference to previous modelling and regional relationships.

4.2 Overview

Hydrologic modelling for this flood plain mapping revision was undertaken using RORB. The RORB models have been set up for the purposes of providing incremental hydrographs for input into unsteady hydraulic models only and as such, cannot be relied upon to provide total flow estimates along the Council drains. Hydrographs are printed for individual subareas along the drains, or for groups of subareas above the drains to be mapped. Each RORB model has been run for all standard storm durations (15 minutes to 72 hours) for the 100,50 and 20 year ARI events.

Hydraulic modelling of the Council drains and associated flow paths within each package area was undertaken using TUFLOW. TUFLOW is a hydrodynamic model used for simulating one-dimensional (10) and two-dimensional (20) flows. The TUFLOW models were created using Council drainage details from existing hydraulic models or from other information provided by Council (refer to Section 3.2), terrain data based on LiDAR, and using inflow hydrographs from RORB. The TUFLOW models are run to determine flood levels for the 100,50 and 20 year ARI events. The results of the TUFLOW runs are post-processed to create flood extents and hazard risk polygons.

31/23544/165358


7 Report

4.3 Hydrology

4.3.1 RORB Model Overview

RORB (Laurenson et al 2005) is a non-linear rainfall runoff and streamflow routing model for calculation of flow hydrographs in drainage and stream networks.

The model requires catchments to be subdivided into subareas, connected by a series of conceptual reach storages. Design storm rainfall is input to the centroid of each subarea. Specified losses are then deducted, and the excess routed through the reach network.

Each reach is assumed to have storage characteristics as follows:

S = 3600kQm

where S is storage (m3); Q is outflow discharge (m3/s); and k and m are dimensionless parameters.

The coefficient k is the product of two factors:

K = kc.k,

where kc is an empirical coefficient applicable to the entire catchment, and kr is the relative delay time applicable to each reach.

The relative delay time for each reach, kr,, is determined as follows:

kri = Fi*(Liklav)

where L, is the reach length (km), d„ is the average distance along the reach network from each subareas' centroid to the catchment outlet (km), and F1 is an empirical factor, and a function of reach type as follows:

for natural reaches, F1=1.0, for excavated but unlined reaches, F,=1/(3SP5), for lined or piped reaches, F1=1/(9S2•3), and for drowned reaches, F,=0.0,

where S, is reach slope (%).

The model is also able to simulate:

Lakes, retarding basins and similar storages; and

Concentrated and distributed inflows and outflows.

31/23544/165358


8 Report

4.3.2 RORB Model Application and Parameters

For the purposes of assigning a reach type, overland flow along roads was generally assumed to be "lined or piped", overland flow predominantly through properties was generally classified as "excavated but unlined".

RORB's initial loss/runoff coefficient model was used throughout the study. Adopted parameters for pervious areas were as follows:

Initial loss - 15 mm; and

Runoff coefficient - 0.6.

The model sets these parameters for impervious areas as follows:

Initial loss - 0 mm; and

Runoff coefficient - 0.9.

A value of 0.8 was adopted for the model exponent, m, throughout.

Ke values used in each RORB model were derived either by adopting the calibration (i.e. the kddav ratio) of previous RORB modelling or by adopting a formula based on catchment area derived by the Dandenong Valley Authority. The adopted ke values used in this project are shown below:

Table 4.1 Adopted Ica values

Package No.

Catchment Total Reference Area (ha)

Method Previous Kc

Previous day (km)

Current day (km)

Adopted Kc

1 4801 89.2 KcidaV 1.604 1.23 1.09 1.42

2 0501 48.7 KcidaV 1.63 0.93 0.93 1.63

3 1302 49.2 Kc/dav 1.7 0.75 0.80 1.81

4 2201 8.3 = 1.53A° 55 0.39

2202 13.8 lc = 1.53A° 55 0.52

5 2501 10.8 Kc = 1.53A°55 0.45

2502 5.2 K0 = 1.53A°55 0.30

4.3.3 Impervious Fractions

Standardised impervious percentages for each major land use were adopted as shown in Table 4.2 and Table 4.3. Land use was based the City of Stonnington's Planning Scheme Zone. Where necessary, the default values were adjusted to better reflect the land use. All zone types were assigned to one of the major land uses listed in Table 4.2. The catchments containing the five package areas mapped as part of this project are shown in bold in Table 4.3.


31/23544/165358 9

Table 4.2 Default Fraction Impervious

Equivalent Zoning Default Fraction Impervious

Residential Areas depending on location refer Table,5f2." 4.4,5 50-80%

Schools (Melbourne HS and most private schools) 45%

Schools (most public schools) 70%

Commercial 85%

Industrial 80%

Reserves/open spaces 10%

Table 4.3 Residential Fraction Impervious

Drainage Catchment Default Fraction Impervious

Allenby Avenue 50%

Avenel Road 60%

Belgrave Road 50%

Canberra Road 70%

Chadstone Road 50%

Clarke Street / York Road 60%

Commercial Road 80%

Creswick Street 60%

Dandenong Road 75%

Darling Road 50%

Darling Street 80%

Hedgely Dene 50%

Lara Street 60%

Macgregor Street 50%

Moonga Road 60%

Prahran / Essex / Surrey Road 75%

Scotchmans Creek (North and South) 50%

31/23544/165358


10

Drainage Catchment Default Fraction Impervious

Tooronga Road 60%

Union Street 80%

Williams Road East of Kooyong Road 65%

Williams Road West of Kooyong Road 70%

Yarra Street North of Toorak Road 70%

Yarra Street South of Toorak Road 80%

Yarradale Road 60%

4.3.4 Design Rainfall Intensities

Design rainfall intensities were determined based on the methods prescribed in Book 2 of the 1997 Edition of Australian Rainfall and Runoff (1EAust 1997), and are presented in Table 4.4.

Table 4.4 Rainfall Intensity (mm/h) for Stonnington

Average Recurrence Interval (Years)

Duration 20 50 100

10 mins 92.29 114.80 133.51

15 mins 75.57 93.67 108.67

20 mins 64.82 80.13 92.79

30 mins 51.45 63.34 73.14

45 mins 40.22 49.31 56.76

60 mins 33.53 40.97 47.06

90 mins 25.81 31.40 35.96

2 hrs 21.36 25.90 29.60

3 hrs 16.30 19.68 22.42

4.5 hrs 12.42 14.93 16.96

6 hrs 10.25 12.29 13.92

9 hrs 7.82 9.33 10.54

12 hrs 6.46 7.68 8.66

18 hrs 5.00 5.99 6.77

24 hrs 4.17 5.00 5.67


31/23544/165358 11

Average Recurrence Interval (Years)

Duration 20 50 100

30 hrs 3.60 4.34 4.93

36 hrs 3.19 3.85 4.39

48 his 2.62 3.18 3.63

72 hrs 1.94 2.37 2.72

4.4 Hydraulic Modelling

4.4.1 Introduction

Hydraulic modelling was undertaken using TUFLOW. TUFLOW is a hydrodynamic model used for simulating one-dimensional (1D) and two-dimensional (2D) flows. The model is based on the solution to the free-surface flow equations. It links 1D network (ESTRY) domains to 20 network (TUFLOW) domains to represent the catchment terrain and its drainage system. The TUFLOW model consists of a 2D network representing the catchment terrain, a 1D network representing the pipe system and a set of boundary conditions comprising the calculated RORB hydrograph inflows and the downstream water levels.

TUFLOW modelling was undertaken to determine the peak 100, 50 and 20 year ARI water levels along the requested sections of Council drainage network using the corresponding RORB hydrographs for Existing Conditions. For each design event (ARI), the model was initially run for twenty different storm durations ranging from 10 minutes to 72 hours in order to determine the critical peak flood levels (i.e. 60 runs in total). Subsequent runs omitted longer duration storms, as these did not produce critical flood levels in the areas mapped.

4.4.2 2D Domain

The 2D domain represents the surface terrain of all major flow paths to be mapped. For this project, the terrain in each package area was represented by grids of 2 metre square cells, based on the DTMs created from LiDAR. Each cell is made up of nine points, with each point having an elevation corresponding to the surface elevation at that location. Each grid was orientated so that the grid lines ran perpendicular to the major road networks within the catchment.

The bed resistance was allocated to each cell as a Manning's n value based on land use type. Adopted Manning's n values are tabulated in Table 4-5 below.

31/23544/165358


12 Report

Table 4-5 Bed Resistance Values for 2D Network

Land Use Manning's n

Residential area 0.2

Railway 0.05

Reserve — few trees 0.03

Reserve — more trees 0.04

Industrial/Commercial areas 0.2 — 0.3

Road Reserve (including nature strip and footpath) and similar paved areas

0.02

4.4.3 ID Network

The existing one-dimensional network comprises all the underground pipes and pits in each package area. Pipes were mostly modelled as circular or rectangular culverts. Conduits of other cross-sectional shapes (e.g. ovoids) were defined using tables of hydraulic properties. Pipe sizes were generally taken from existing hydraulic models, Council's GIS layers or design drawings, and confirmed with Council staff where any discrepancies existed.

Typical values adopted for pipe parameters were as follows:

Manning's n = 0.011 to 0.015 for concrete pipes, 0.02 for brick conduits;

Pit loss coefficient = 0.2 to 2.0;

Pits - 1.2 m by 1.2 m rectangular section.

4.4.4 Boundary Conditions

The hydrographs generated using the RORB models in each package area for the 100, 50 and 20 year ARI events were adopted as the flow boundary conditions ("QT" — flow versus time). Flows were put into the TUFLOW models by either applying a hydrograph to a single node on the 1D network or distributing a hydrograph evenly between a number of nodes on the 10 network.

Constant tailwater levels were applied at the drain outlets of each package area. These levels were applied in the TUFLOW models as head versus time boundary conditions ("HT" boundary with head remaining constant) at the pipe outlets, generally corresponding to the pipe obverts levels. Overland flows at the downstream ends of the mapping areas were allowed to freely discharge.

4.4.5 Run Parameters

The following parameters were adopted for running TUFLOW:

A time step of 1 second for both the 2D and 10 networks;

Model run times long enough for peak flood levels to occur through out the drainage system; and

Initial water levels equal to the downstream tailwater levels to prevent a surge of water heading up the system at the beginning of a run.

31/23544/165358


13 Report

4.4.6 Results

The results of the individual storm duration runs for each design event were post-processed, using utilities provided with TUFLOW, to form an envelope of maximum flood levels for each design event. The maximum flood level envelopes for the 100, 50 and 20 year ARI events and 100 year ARI velocity-depth products from TUFLOW were processed further to create the respective flood extents and safety risk polygons.

The flood levels and velocities calculated in this Study correspond to a storm event on the catchment of the drain under consideration without any allowance for a coincident event on the outfall stream of the drain. It is entirely likely, particularly along the lower reaches of drainage systems, that higher flood levels than those calculated in this study may result from a flood event on the outfall stream, either alone or coincident with a storm event in the catchment of the drain in question.

31/23544/165358


14 Report

5. Flood Extent Mapping

5.1 Introduction

TUFLOW modelling was used to determine flood levels and velocity-depth products in each of the five package areas for the 100, 50 and 20 year ARI events. Flood levels were then used in conjunction with LiDAR to determine extents of inundation.

5.2 Extent of Inundation

Extents of inundation, for the 100, 50 and 20 year ARI events are shown on the Flood Plain Mapping Plans covering the entire Stonnington Municipality. All information is based on surface topography at the date of survey as indicated on the Plans, and as described above in Section 3.4. Peak flows are based on zoned land use conditions.

All information produced as part of this flood plain mapping revision has been merged with information from all previous projects for mapping purposes. Limit of mapping polygons have been generated to clearly define the regions for which extents are shown. The mapping limits also indicate from which project the mapping was undertaken.

Note that new cadastre has been used on all maps. In areas previously mapped some properties identified as having above floor inundation may have subsequently been subdivided. Due to this and the potential redevelopment of properties subsequent to the original floor level survey it is possible that some shaded properties may actually have floors above the flood level.

5.2.1 Filtering of shallow sheet flow

In most circumstances shallow sheet flow does not results in a flood risk and if shown on a flood map can infer that flooding exists in an area where in actual fact there is only shallow sheet flow of little or no significance. The flood extent through private property in Package 3 was filtered to remove large areas of shallow sheet flow from the extent.

5.2.2 Other Adjustments

An inspection of properties and LiDAR along Yarra Street (Package 1) revealed that a significant amount of development (much of which is post the aerial survey) effectively prevents the shallow sheet flow to the east that is indicated by the LiDAR. As a result, the extent along the east side of Yarra Street has been trimmed manually just within the property boundary to acknowledge that flow does not continue through these properties while at the same time providing a flood level for planning purposes to help prevent inappropriate development (e.g. construction of underground car parks with entrances that are too low).

31/23544/165358


15 Report

5.3 Plan Notes

The following notes appear of each of the Flood Plain Mapping Plans:

1. One percent probability flood extents shown are expected to be reached during a flood event with a 1 in 100 chance of being equalled or exceeded in any one year (also known as a 100 year average recurrence interval flood) under the physical and topographic conditions prevailing at the time of preparation. This flood may occur more than once per year.

2. The approximate extents of land liable to flooding during the one percent probability flood have been based on survey data available at the time of preparation. These include survey based on low level aerial photography flown on 25 October 1998, aerial laser survey prepared in 2007, and subsequent detailed ground survey undertaken by the City of Stonnington. Current drainage conditions may differ from those adopted at the time of the analysis. The exact extent of flooding for individual properties can only be determined by a licensed surveyor.

3. Floods greater than the one percent flood can occur. During such floods an area greater than that shown would be inundated. Conversely properties within the area shown can be affected by floods of lesser magnitude.

4. Local flooding of other areas, or in excess of the extents shown, may occur. The extent of flooding shown relates to flooding from mapped reaches of the City of Stonnington's drainage systems only, and does not include other Melbourne Water, Council or private drainage systems.

5. Local increases in flood levels, depths and/or velocities shown may result from local factors such as drain blockages, and local obstructions to overland flows such as fences, buildings and cars.

6. Flood information shown relates only to floodwaters emanating from the catchments of the drainage systems shown, and do not include any allowance for coincident flood events on outfall streams, or other streams or drains. In the lower reaches of most drainage systems, greater flood levels, depths and/or velocities than those shown may result from flood events along the outfall streams. Flood levels, depths and/or velocities greater than those shown may occur:

a. upstream of the upstream mapping limits of each mapped drain;

b. along other Melbourne Water drains, or Council or private drains, either within or outside the extents of land liable to flooding shown.

7. Shallow sheet flooding may occur outside the extents of land liable to flooding shown.

8. This data should be read in conjunction with the latest revision of the Report entitled 'City of Stonnington - Flood Plain Mapping Revision 2008' (Document Number 31/23544/165358) and is subject to the assumptions and qualifications contained therein. If the report is yet to be released, these assumptions and qualifications must be confirmed by reference to GHD Pty Ltd.

9. Cadastral boundaries, allotment numbers, street names and drain locations have been supplied by the City of Stonnington and have not been independently verified.

31/23544/165358


16 Report

10. Where floor levels were available at the time of mapping, properties with floors liable to flooding are shaded. As floor levels were unavailable for many properties, unshaded properties may also have floor levels liable to flooding.

11. As a result of the above, the City of Stonnington and its consultants do not warrant that individual properties are not flood affected.


31/23544/165358 17

6. Flood and Safety Risk Assessment

6.1 Introduction

Hydrologic and hydraulic modelling was used to determine flood levels and velocity-depth products in each of the 100, 50 and 20 year average recurrence interval events. In the original (1999) investigation, floor levels of all potentially flood prone buildings were surveyed to determine severity of flood risk. Floor level survey was not undertaken as part of the 2001, 2003 or current projects.

6.2 Flood Risk

Property flood risk is defined by Stonnington City Council in terms of frequency of inundation to above floor level as follows:

Category 1 - Property affected in the 100 year event, but floor is flood free

Category 2 - Flooded to above floor level in 50 to 100 year events

Category 3 - Flooded to above floor level in 20 to 50 year events

Category 4 - Flooded to above floor level in more frequent than 20 year events

Two new categories were previously created as follows:

Category 0 - Property is flood free in the 100 year event

Category 5 - Flood risk could not be assessed due to unavailable floor level

Category 0 is not normally required since the properties assessed for flood risk are usually affected in the 100 year event. However, since the original mapping, some properties have become flood free due to drainage and other improvements. These properties have been left in the assessment to indicate the change in flood risk and hence, required a new category.

Category 5 was created to highlight the fact that no additional floor level survey has been undertaken since the original project. It should be noted that this category does not apply to every property without a floor level. For the original project, some properties were assigned a flood risk category 1 even though there was no floor level surveyed, because it was deemed at the time of the survey that the floor level was well above the 100 year flood level. However, since no additional floor level survey was undertaken for the subsequent mapping projects, this on-site assessment could not be made and a new category was required.

The mapping limits shown on the Flood Plain Mapping Plans give an indication of which areas are likely to contain category 1 or category 5 flood risks when there is no floor level (i.e. in the 1999 Egis mapping areas, flood risk will be category 1 where there is no floor level, while in the 2001 Egis, 2003 GHD and 2008 GHD mapping areas, flood risk will be category 5 where there is no floor level).

31/23544/165358


18 Report

Flood risk data are summarised in Table 6.1. For consistency with previous mapping, the flood risk has been assessed by comparing the maximum flood level on each property with the lowest habitable floor level on that property. No account has been taken of the coincidence or otherwise of the position of the building relative to the location of the maximum flood level. In some cases, particularly on steep blocks, this may result in properties being assessed as having a higher flood risk than is actually the case.

Table 6.1 Summary Flood Risk Statistics

Flood Risk Category Number of Properties

0 264

1 1490

2 109

3 114

4 483

5 1916

6.3 Safety Risk

Property safety risk is defined in terms of the velocity and depth of floodwaters along the egress path from the property to high ground in the 100 year event, as follows:

High risk: velocity*depth greater than 0.8 m2/s, or depth greater than 0.8 metres;

Medium risk:velocity*depth between 0.4 and 0.8 m2/s, or depth between 0.4 and 0.8 metres;

Low risk: velocity*depth less than 0.4 m2/s, or depth less than 0.4 metres.

The higher of the velocity*depth and depth criteria along the "safest" path governs. All egress was assumed to be via the street frontage, and along roads only (i.e. not via laneways at the rear of properties).

Safety risk data are summarised in Table 6.2.

Table 6.2 Safety Risk Data

Risk Category Number of Properties

Low 3040

Medium 256

High 7

31/23544/165358


19 Report

7. GIS Output

7.1 Introduction

A GIS (Geographic Information System) is a computer based system for the collection, storage,

integration, analysis, and display of spatially referenced information (digital maps and attribute

information). At the time of the original mapping project it was recognised that a GIS platform is ideally

suited for working with the output from these investigations. A low end GIS or desktop mapping program

MapInfo was adopted due to its user friendly features and its wide spread usage.

The Mapinfo output is provided for the five package areas of the current project only, and is arranged in

the following structure:

Subdirectory Contents

1---Extents Flood extents, Floodway risk zones and mapping limits

I---Others catchment data and intersection depths I-Property spatial property database

WaterContours 100 year ARI water surface contours

7.2 Flood Extents

Flood extents are provided in three tables (2009 100 Year Extents.tab, 2009 50 Year Extents.tab, 2009

20 Year Extents.tab) containing regions with the following fields:

Field Units Comments

ARI years Integer 100, 50, or 20 year ARI

Extent type Flood extent

Drain Ref XXYY 4 digit text drain identifier

7.3 Floodway Risk Zones

Regions showing low, medium and high floodway risk contained in tables 2009 Hazards Low.tab, 2009

Hazards Medium.tab and 2009 Hazards High.tab respectively. Each table has the following fields:


ARI years All 100 year ARI

Extent type Low, Medium or High Floodway Risk Zone


31/23544/165358


20 Report

7.4 Mapping Limits

A single table, 2009 Mapping Limits.tab, contains regions indicating the limits of mapping and the following fields:


Extent type Mapping Limit


Revision Date Date of last revision

Revised By Name of council department or consultant

7.5 Catchment and Subcatchment Boundaries

A single table, 2009 Subcatchments.tab, contains regions with the following data fields, one record per subcatchment:


Catchment Ref XXYY 4 digit text catchment identifier

Sub area Alpha numeric description

Area_sqm m2 Float



7.6 Spot Flood Depths at Street Intersections

A single table, 2009_Int_Depths.tab, contains depths of flooding due to the 100 year ARI event at all inundated intersections as point features with the following data fields:


Int_Depth_m m 100 year flood depth

Easting m AHD

Northing m AHD

31/23544/165358


21 Report

7.7 Spatial Property Database

The spatial property database (2009 Property Database.tab) contains a property polygon for all inundated properties, as well as those properties inundated in previous studies but are now flood free. The following data fields are associated with each property polygon:


Prop Ent ID Property Entity Identifier

Drain Number XXYY

Street Number String

Street Name String

Suburb String

Post Code Integer

Lot No String

Plan No String

St Side Character N, S, E or W

Cref Num Council Reference Number

Floor Level m AHD Real .

100 Year Flood Level m AHD Real



100 Year Depth to Property Surface m Real

Flood Risk Category 0,1,2,3,4,5

Floodway Risk Category Low, Medium, High

Easting m

Northing m

Assessment Number Rate Reference Number

Survey Easting m

Survey Northing m

Survey Street No String

Survey Street Name String



31/23544/165358


22 Report

Given that the property database is based on recently provided property polygons with minimal data attached, the properties added to the database as part of this project do not contain much of the base "title-type" information.

7.8 100 year ARI Flood Level Contours

Flood level contours are provided at 0.25m intervals for the 100 year AR! event. They are provided in a single table (2009_w_surf.tab) with the following data fields:


Type Contour

Height nn AHD Water contour level

Interval Level Number indicating contour interval

31/23544/165358


23 Report

8. Recommendations

The flood plain mapping now available for selected reaches within the City of Stonnington is expected to be included in the Stonnington Planning Scheme as a Special Building Overlay (SBO) alongside similar extents from Melbourne Water. The sections of drain mapped were selected by Council to cover the known flood prone areas and many anticipated flood prone areas.

A substantial amount of data and information was compiled during the generation of the flood plain mapping extents. A comprehensive and reliable property database of flooding issues can offer the following benefits:

A sound means of prioritising and justifying drainage improvement works;

Rapid and consistent assessment of public inquiries; and

A means of measuring performance improvement.

Given these benefits it is recommended that Council consider the following issues, not necessarily in order of priority, to protect and enhance the value of their Flood Plain Mapping data:

Undertake additional floor level survey to enable determination of the risk of above floor inundation, which is closely linked to flood damage costs. Floor level survey was undertaken as part of the original flood plain mapping project only. Floor levels are generally not available for properties shown as inundated during subsequent mapping exercises. Alternatively it may be appropriate to remove the block shading which indicates that flooding is above floor level;

Updating the database to include additional floor levels and flood risk assessments for each affected property. The database is complete for the original mapping areas only. A reassessment of flood risks would eliminate the need for category 5 by having properties reassigned to one of the other categories. A search of the current database indicates that 1271 properties currently with a category 5 flood risk have more than 150 mm depth of water in their property (although some of this number are actually due to multiple polygons on the same block); and

Keeping data current. The effects of residential, commercial and infrastructure development can improve or exacerbate flooding. These effects need to be assessed and where necessary the data updated accordingly. Also, it is expected that minor mapping revisions will be required in response to identified changes to drainage conditions.

31/23544/165358


24 Report

9. References

Egis (1999). Stonnington City Council, Flood Plain Mapping 98/99 — Final Report. Egis Consulting for Stonnington City Council, Victoria, September 1999.

Egis (2001). Stonnington City Council, Flood Plain Mapping 2001 — Final Report. Egis Consulting for Stonnington City Council, Victoria, November 2001.

GHD (2003). Stonnington Flood Plain Mapping Revision 2003— Final Report. Egis Consulting for Stonnington City Council, Victoria, June 2003.

lEAust (1997). Australian Rainfall and Runoff, A Guide to Flood Estimation. Institution of Engineers, Australia, 1997.

Laurenson E. M., Mein R. G. and Nathan, R. J. (2005). RORB Version 5, Runoff Routing Program, User Manual. Monash University Department of Civil Engineering, in conjunction with Sinclair Knight Merz Pty. Ltd. and the support of Melbourne Water Corporation, August 2005.


31/23544/165358 25

Appendix A

Flood Maps

1:2,500 Al Maps (16 sheets reduced to A3 for this report)

31/23544/165358


STONNINGTON City Council

4

3 10

2 13

a 12 16

15

14 SHEET LAYOUT

0808 (Sheet 3)

0809 0909 (Sheet 4) (Sheet 7)

0908 (Sheet 6)

1008 (Sheet 10)

0907 (Sheet 5)

1007 (Sheet 9)

1107 (Sheet 13)

0807 (Sheet 2)

1006 (Sheet 8)

1106 (Sheet 12)

1206 (Sheet 16)

1205 (Sheet 15)

1105 (Sheet 11)

1204 (Sheet 14)

STONNINGTON CITY COUNCIL FLOOD PLAIN MAPPING REVISION 2008 - PLANS

CLIENTS PEOPLE PERFORMANCE

NOTES

I Ora prearorobehdO nom sfavm s,P•IONr•ar,•tl curro a tool wth a I p 100 chem., P• bowled or onset. y•Plalso Vropn as a 100 you evempovamrce v•riaPda, vraw pnysted era

7.1n•sgrot mete ado.. or lard labs to n000loanny or..• pruart frolmerry 1,40. immi ans. •

senal laser survey pope, n 2,07 was...W.0e Ma putt survey meixtalon try. CO of Stonn,..ol

North

91

SCALE 1 15.000 al AI

METERS 150 0 ISO 300 450 600 750

AUSTRALIAN MAP GRID ZONE 55 (AM 66)

LEVELS ARE TO AUSTRALIAN HEIGHT DATUM

• STONNINGTON CIT M.1(

J. COWAN

,POJECT MANAGER Monn0900 City COCOA

STONNINGTON CITY COUNCIL

FLOOD PLAIN MAPPING REVISION 2008

KEY MAP

SHEET NUMBER

DRAWING NUMBER

1 OF 16

3123544C0001

7.• e

P.1.1 L., Water mtuns or [Arum or pool. ns •Fner w On eroPs et. o4

LEGEND Ott. al lar, la. to flood, woo a two p.m. pota, Erer, of lapel,. Wk. rg rya ptrc•nt probablO Noe

MN Poole. re. Monr.pg duo, a on. tamp* Mat, nooe

MOM Roo ,•,•, OfW FFFP • O. F•o•r,Po.,,,.. Roo,. Fade Iloo,rg dunn9 ,,,,OFFc•r,

WM Low q•ss pe. r•Worn e.t.a low PPP] om

MN BVP^INNON arms rsepsNey BF°.

(El I) ClIENTS PEOPLE PERFORMANCE

it=1"

G. C. HAY

CHECKED

a J. EATON

ORAwN

3, Roma "ester tan Po or• ger canc.. CW15,41111001 an area groatiV than il,a1 abYen Vio. ,11.01a1.6 a. sm.. cm,muv,va.m. Raw BFNIFFmNFI op be •Ferted less•ore,1.. a. Local flooe,O °therm.", *qv. s.bwr Rey occur. Tv. WO1110O100P nl.rep..syqto.releasoe.fts•assurivcorsa.r0ous,

!roc rr,p4 rag,. of

app.,

bee, -1.on 'el or -

REFERENCE NUMBER

Key Map.WOR

REVISION

0

5808500

i

0 F-----

1 1 I

, _ , ..,2 no

1.,

.

i

1----__;., eft

I

„

HIGR

I

r ro o, ro ro ,

I

"

WERONA ,

i -i-i , 11111 ',alai Ili Mil lir

LIMN

ew

I I

C. I , , MCI II

it-i "111111.1

alftemii

r, ilin

I

lallin is

, I v.. -11 I Milt

ST , a ft.,..,

IiiinFali; 11111 s'-'

. 1 i

87'

ANDREW

Cliill II

aft

,

a_

III Hi

Th7 i

--- '

,

, ,__T,, .-- ,

'

HIGH

., oi

' i ,`2 '0,_____k_

7 , I I

1

-

—

In

IIIII

F----- 7 SY 1

' I

, _ 1 , I I 1

am , , 1111.1111..

--. - I—T Ma 1---- I I ' I ammift .....

........18. NMI 155.,

IIMIN MIMI , 0_ _ -

_ Ihmoi

____.. ....

. , .... f

finge

men_

- 71

1111 1,1 1

J ' Ef t I

'I li

, I li

lt 1

i

1,

l

' -- - -

---

- -n

I/ rri /

' T7

---

i 7

; I

If J

NORT

H

8 S 8 ,

i

..

5808250 ,,

, RAI-EIGH 6,1

1eman / I - . on in II • Ate

S DSTON N i puma

2 misaisp- nose f- intilligipti . . itilinew

onlaillaff weaki wfiLll NEN!

s., es pill DR Eh,

ail samms sainal IF. ...„,„ ... 1 ....... aloft

p:74781,ff

nos JO N MIN ST ST JoHN

NW a

1 lilt al

. 111 nraC

GREEN Iiiip Ili ans, 1 _imam

,..... mi

i i

3_112:117018.11'l

"....:mm'n' :411:4

...aim 1117d .....

7

i i il

.1

J I "." u. L' 1131111111e Inn I i ig 12,

II :I

....,anwer,,,,..... 'Inilive mil

eft :F. ill111111611111X1

5•554,,,,,. al".1114.11.1111

litaft15'451 '''.. Ira Ili ildrilla FE ifilril nememie , ,. .,........ • iv ..... ... i

Min

amwrimp-__ . 7 alb V i 101 °OM

sicificen In .. 1 , . 7,

.......„. A sum a ___,.....„

aim nil

5808000

1 i p

, 1 , , g

i L_Awill1111111111111ra-willi

winiall ill INNIS

asailflaini pEE 1

polimilmillonam„ 1

III 1111111#1

et ( an ill in pigiviniiiii

illi aligilii

iiiiir ' la181111111 iligivist "II le NE Eiiiiiiiiiaga

..

----- irr,w.

_ BERT ST '

' ', Deallialli

./1

""'......-

sa,..,... ,ra.1,111s

— , _ fteigr"--relic

-wee p.a. Pi ia. inon _ ,a..„ ,,,:w.. , 1 i . sr

.**,.. , .......

,

...,....... , =ma

Z- --"•••••■• „II I

1 6 P01111 ,

-- _ _ L , ' - '

rawirigorig :

milloplmar ""' lit" ria ' Ay

. . -

I lir • ,

Pau lawiting mit ,

MI IMI ti

IIIIIII Ill

al. LIU a• inn eirmare rj., im•

i.

Nmenste. =AHD

5807750

Do ' ----- jar

VINE

•. _. 0,44,

min IN Plik

'W.0.4 . ,

I 1 D

_ CLOSE x

aillesaid

I Eli

ir

I

1,........111111111111,11 IllaRili

on .. g igii.,

la

. . aim Am. 1 if

E LESM E III . Live L., Him sir tali i RD

580T/50

§

v 8 n on lo

8 A

3237

50

NOTES

Ta""t. ...norm ono.. noo7. ano:....................n ...V.

oo.nrsoonn.

....PF........., ....M.090 sp.% orry sn0 ens not inclo. OM Walar

SCALE

METERS 25 12 5 0 25 I

• 1: 2,500

50

al Ai

15 100 125

LEGEND

no............ /..n..... wag a n no.. .no a onopoo. AM.. 11111.11 Ano..................h..

NM— HP .,,AIA.......ALA9•0,...FAmIrn

. EATON. 7STONNINGTON

G. A

CITY COUNCIL 4

limil 3 6 a a HAY

CHECKED FLOOD PLAIN MAPPING REVISION 2008

YARRA 2500 / 0807 . 11111 CUE Nis pEo, E vER f 0 R .. 0

..„....,,,, =v.:1-E-

, STONNINGTON D. canna I-1 I-1 I-----1 I

AUSTRALIAN MAP GRID ZONE 55 (AGO 66)


5

J. GOWAN

.ROJECT MANAGER

REFERENCE NUMEER

0807.WOR SHEET NUMBER

2 ., 16 DRAWING NUMBER

3123544C0002 REVISION

0 SHEET LAYOUT 112 o

5809750

1 g 1 adli

IL NNE

....LAN

el

82811 11 RALST

rc ' 1 .!

a. __, . .. -----

i .4. ''J.1 9' 4,.. 4 . mai 5' , -t' , was ,

aft. ea ---;_, , ma. _ea , -_, , ....... ma -_-____ ii_-_--ir, -:- 141" , „.____ -

Italailialiii

•

ilkinft

aka an ... on

maw ,

gm , ...., i .1111111 mali , i J'i” ,

pg, ke4'

. . • • • . .

------'w'''IM,,ifi"Zir- . ' T.

5, 14. ,

n RD TOORAK

v - , , _ P#56,,-,,„ -

------7 ---,--_ _ --, 1

-

r-----,/

._, .

' 1 l /

. /

. p9 ,

' ' I / 1 / a ,

/

ss '---QXE9RD , I

, , ,, ; ,, ,c

, , CT .....

, LL , al ...... , aft I

II

s ) g

Mpg ,

INN l*" ill

gin it

,--s1 ailliN Ilillillpa

__QL,(PORD

allimm. 1.111111111 =fr.

'Ma

al ai, T

.

imam iii "MIMI ..„

avow

44117,7 milit

oo !stl

.:1 .11 .11 .1. 11.1 1 : 1

11 10__1 1171

4 4• -,_,,,,l

- ' '''' '-

----- ,- --

,,

--__

__ _

,

.%

- I i '

, , -

1 i ._

/ 1

1----

AJ ' y

1 , C

taty

__

_

r /

, ,

i i -

cn

ouw

eLL

I

I

—""

mga

lai

' ..11..'..'

, R

D

i

\-,

CR

OM

WEL

L R

U

-, . .

L, ,a

'.:, ....... .

,....-..... -4 8f

filL

- 411 --- . 7

. 1- ea

ll

i

--

- ---

- 17 /7/ .., 4 ,

-il l vi al

''''"

41111

.. 1

" ....

at

' _...

go w

ir ...

. iii

iiiw

ie 0 ii

611,,,,,,... ,

I I

5809500

. ,

wig , ,

.... i

1.1

I: I '

a, lit

I

- ...mini %'7.---

1 , , .4 / i tta,k_tearnin

.1 .. ,

a-

I I I I

r • ..1%ft,

1 .

III linlillianor...... Eig

r -1I LIIJ M

- I ,.....

aft

---.• 111171"1 1176Mille

• MID I

• - • Ifi III* r AMMIIIMi

. "al Ilk_

• i

no-

.

/ , r z G E Al

LD

lit

,

/ I ' a

,/, 'li41111

MI% "..M.

allel ise am 31211/....-- _

lii

..,.......

Aft

I 111 I • i i' ' -

Fall I .-------,

• .....,

I ,5 fq, - ,r 6 1 fr 1 Va., ,. ....,m , ......„ ,

'a...N.1W; • LA....

. alai lam

a.m.

la I I I Illa VP N....

PALERMO 5 Rift.

sr 111113ingg ,

7 li . Q.n.. , ,--,, , , , \

\ \ \

\ \ \

ST \

i

5809250

•••..._ failinntm.

•

--11' a NM

I

ift or ith aa

i minniMairira

4 amir in,

Ift,a

, L....... , .174 ailionirrera I a.....

IIP

ii:17.7 ..... 1:11:1111:1111711...

...",

How

"walliumal aZiftssalei

uffilliN ''' Ammo

IMO lin wow a "N libirit Ile as. it am MX a en. a La I i ....

*mil.= 1 ENE

pirar.„. .... ...... rie.. ...Wan Pow

eim iris ...new, noses st, amv..."ft" ORM mouPla .... ..... aftalar ata0",* "wrag maw ",nre. Irillan MIR .....,,, im avai .,,.,...,

wi

aft I 'au-HiPa't 11-11 Om Zs ...., NWT, .n°11' ..., ....,

1 Wein II

.

ii i sal :

III e

ll:":1111 ...,____--..v4 ...... la ...ei .....,

ftga 41,

an. Rai 119411Mn lama ... wain EL,z,BET

1.11191 -41111-1"1." .*"....1-174:14''

1

/L 1 /

AIR „ro

w .........."wil

a Wait . ) MI. gir, g ,... ...! ..,,,

: II III

....

___

_:;...m.,.

i 1i

lial: In

Min

Wan

\ GARDW

r-, lief a hi i. ;

li \ MI Iftal.... \

v \

.

, ...., ..., alta,

' i

Re

ko. nob

mop

r

1111

I . .iiNglia h __.

. N

I eftergal 'ami

NM UMW maw.sisin: I

5809000

— norsimi

f na

an I 1171111111.1711; „..1 I, ma timosiva I, gaip.-ei: .......". I.

....WM ZUMOS52

,,,„..., .„......,:aal.,....47, tow assn.

:444 01 1171:2r4

wil ,...„. ....a lag

lift'

'2 Ss A Ca Mao

Jill 71 walLimilwaft 11 1 , i itth PREP reff, aim wi in ...A.* Eft ift..., Illeftx El eft MAW .,.....t—ves are amormo w I it—amal re* aim ......

allIMMEN At *0= sa ...... , ma„,""lem imi ftwari awe

1 a MON 411111 69a Ani aill a Egutz.. MI "mil 4 iftilir■

.....-__*"!• 1.1111pa 1 ---..... a NO laag4m...-1.2ftlialla

will alb Mil -0,111.-___WE ram. sm.- WAWASEki WM.., 1111111 +10:74i .5--,,am 1-.., .......... "1„...a, ms, apilmi,

11111WM Aso I

L

IR • r„,„,... , IIIIII ll

I IV! a II a

-.....?..... Kw allar f t% .00.,

.m,mm,

' all,

MINN

len g

411 RD ER4

API ill/ am. -

ii,

as am,..,1 pin,

• , mg — ill ,

" ... ..... r

8

ijraD

, MINN =ma 1 8 .„-Q:Ra;

isd aux -.T. ...... CHA

i NOP

, I

Li • law IIIM all

I

. ir,,,,,,„.

k

------

Pill

=am.. , taw 1

T.....

et

-E"."R , ......1 ,,-,7-....111

Ilw, sei iti" AV

- .0:11,- itei

.

, ea. 1 1 la a ,

/

U,

/

/ , ,

;

, / / ,

i ' 5

6 , ,

1111 ILI

......w, . R. ii li

q

ti

.. iii

I

0

i a RI __

MN N 1 I I 111 a

LAI -alMillellin 'WM

.s.gmem er,„,„,,. alp ammu, Poi Mum

MUM lift .. GREVLLE a Mt I nlIl

la

al

an a v 1.........111141 li

w NB mu.....E ati.....

HAM

111111

, Malt mow A.

-71 I I (L.

,

,

asat

-

MN ell

I lif E

t

s

/ ,

/ , nel slwa i ....., anm,

1

ala NUM I i nia"",!.,

/ •

_- mai 7....airi st.......0

atanamou

/

/ 11461TENET

NM

111- ilw of ..... -1

' 1 s°mmER. i P , In

CL A RK E

.....,. pi !!!

,

am Inn n

NMI N

lit"

. i N im ....11 NOTES

0

/ 5 5a5' 5'55555 '5=55%55=5'515=5.=5. '5' "'5d5' 5555 '5 '5'5* '4

SCALE

METERS 25 12 5 0 25

North

0 1: 2,500

50

al A1

75 100 125

,',., ,.., Roo owon.55.5a.srnerma ono tm..51.. LEGEND MN .1•PRN15.•......5.5..2.... MY ..

G. J. EATON

STONNINGTON Willirr". Illainhalk..._ wal. krab 6 CO an -------

a

DRAWN CITY COUNCIL

G c. HAY

0 MN 9 IA R1P1P+1...N5Jva a r.•F•rcman CLIENTS P EOPLE: P ER FOR MAN C E c.ECKED

FLOOD PLAIN MAPPING REVISION 2008 MUM=

aum Med= Knas M., ..........3. 0. W., Pr* RO .P...M.•15N1ow ... a ompvoso *wry..

fit:ItIMPS:r.

STONNINGTOR Co Coerved YARRA 2500 /0808 1----1 1---I I

AUSTRALIAN MAP GRID ZONE 55 (AGO 861

LEVELS ARE TO AUSTRALIAN HEIGHT DATUM .311110

SHEET LAYOUT IM J GOWAN .

PROJECT MANAGER

REFERENCE NUMBER

0808.WOR

SHEET NUMBER

3 oF 16

DRAWING NUMBER

312354400003 55,510R

0

5811000

32

22

50

ir

1.1

5811000

5810750

r i i

all

...SON 01

5810750

5810500

:Al: 'A's \ s

III oil GORDO

1111/1 i . er „., 2

. ; 111116 r--

. V i .........110110

1

Flood levels and depths in Alexandra Avenue are due o flows from Yarra Street only.

They do not-acco.unt for other

Avenue from tITeiast-or wesi.--- --,..

-..‘

\ \

flows.comIng alonijAlexandra-----

dig ig"11 ....

51050

. . .. , i

- otas.._,„...,1' o

2 111

' li al a

DOMAIN is . Nit III t„-

. iH

lIPLEy

itr

, I .

i I , ,,, 1 , Y

/ . I ' r-ri

-. - id ,

I al air

,,

. Ili. amilei a lila

1".il.lm.

w

m.-

c

fta

r

_

o

_l I

,

r

,

M

P111111 11P 11 M 111111

1 m rifilli

IIII O

.

2

lg

O

eft ,..a.i........

millilir -.aft

111111411,

....., Ii

gni Ifturr.

a MN am.iiii .m.."

lis ma....tfaiii az

Pm Iii ill ereq,

i VP.

la ata... 141...

-. --7_77_1E-29_ MINIft

II,

Nis I

4111111

. n

,.

AI 1°

I Ian ....

. Clef

inimme „Le

mg / ..

/ /

,/ ..X1111 , , I

if / ,

ii

i •,,- , 44,

g g .T,

.c

Ro„, ,

mitt Rail A ftion, idi ftninft.

...,,„ i , Inv

. , ___ral ....... luta

" IMIN .. ,,,,,

.___SIIIngs

...•11•1

evisielliallit Nem:

maw ....3 .

11.11011111E MINI aft"- MIS ammo 'raft afteni, sT ',. Nill allitil ......... ai...„,,1

11117

_ \\ \

MOM Fa .

i

—,,,, 1- 3,,,, Sr efts

' egalaa 2. I sal

113

*lbw Illan ,rimeal

-

.

:

NIF

NOTES I.. pervoraela 6616•16.66•61ammled to . na6114, .6066660 raw* • • in ioo cherc• of 1.662 6. Mk Isrlormallon

North oy;_r_66, 6.6.11•661661166,166.6 0.16,p • ono poxe,61.616,16r, LEGEND 1== moo o 'Imo. o moor moo • oom tow

a J. EATON

STONNINGTON stow ni4166 6.1611666.4* on1.6116.6 horn ths calclererti olthe On,. systems s 66 nal 666466666,666666,6.166,6,666(.6Nwora4 ,90,6661.6rprwurrerce6.64.66...66,6may6 irw my *nor mime. Moomons op oula wmo.owerstrom or exim. In en lower ol

inall alinap• system p•ster bc60 16661, 6,16.6666,0666164.10,666 show I III EX•r6 of1.6.666 boo, darn prcarM61,1666 &II DRAWN

CITY COUNCIL

6. Tim approtrrato 6666.6 arlarcligh to floodnp 6666Ipte on•pmblity .613•66 law las. clo •66,6•16 ottla sOmans. Flood... 6.66 artVorvoloc666 gvatort66666666 stow nay cc

wt.. ((.(((*.r.m.tion. mom (ro.l. sw bum on (wmam pimogramm com owf lem. 15( (warn at tm um rm., ,,,,,,,,,,,,,„, 6 IS mat Fixeleniel PM to 11.6666 camps ens 6orcorrni16,16661

NINO R66.6.6'.6.6 '6 '6.666 66.6 6 666 6666.416.66.6,',66,6 a c. HAY

0

6614 law surly 666,6ar. 6 2967.6e164.6660.61406664rourd gamy unertalon try 666 City of Sbre,o, Pa/ Acegolfor.boume Wav Ms. 66 6.66.6,66666.66-6.6.66.6,66. or ousida 6•466aros or we.. to 6,6 cardlons may 661•61666.6666 ado6664.6 the tin* ol No an., 11.66.16, .6.g of 6.66am66,6, lboolno abm. I , g6g,,,,,,,,,,,,„,,,r.,...0,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

9IBA SCALE I200SOIAI 6666r 6.66116666to now, 666,6666r6 MAW,. MIN ,666 6.66 6.6 6...".66',966,66'66• 666 P6.6.6 Fr6W 6666 CLIENTS PEOPLE! PERFORMANCE CHECKED

FLOOD PLAIN MAPPING REVISION 2008 1 6r6.6 16.61,6,6 perc61666,6 con occur. 0.66,6666h6,666 an ana "Wow ft-. Mal ablon 666.1:6 06161.66 t Trismin mow rem, corwon womtm mows., omm Flopoit ortM,Ci,o(Slorm• FM. Plo.MMIPM n

'

METERS 25 12.5 0 25 50 75 100 10 gems 166666.66ross,nakt661 Comers. RoperbeS 661116.16 vim show en be •66.6611,666664 oliessw rap.. RmiSion200161Decumr.rtiw31.3544il653591anns 6166,11,6166666*. .6* 6.6*. 4. Lusl 1,66,66 of Wiwi... or rn 6,666161168 66666666666661. nay occv6 Ix 161666 of loot. *al. to 566.9 ntwon is yet to to ronsmw m(mptm....3 ((maw. ma be coow ey (W.. GMS,L1(1. 1----i P--i .i--1 1 ov.6616ern a ova 16666•66 pro06.1,616166.

MEN MO,..F.Wkornevommferwrq a ompnrcori probasay nood STONNINGTON fay arm, YARRA 2500 / 0809 how, Ma,. el the C1,61516666r6lorts drvinap syst6rra oriy. ana cam mUndu. 61.616•1666. Waler. 9. Ca. tourelarles. MU... 6166616141•• Mt dmin locators Nve Own 6.666116, ary.sturninpon 666r (M. coula .r W..- 11•66666 6•6n wordy mom, IIN AUSTRAUAN MAP GRID ZONE 55 (AGD 66) S. wmr,,,nrrOrm ex. a ommomm, mod

•---.. ,(MM.g (mt.... ',pat, ow

m

16.W.666*11.1.66.rirn 6116. Um of rranp.prorns 1.1111041110.010.1X1r. WO SW m noor mok ml. univs1161.1or no, porn, unsheernes may also hav41.61•04 ra to 1.0.,.

MI6 • r•stA ol en abavo..,61516trInglon era its cons.. 66 not wor•61111•16161rnen not bod Owl., SHEET LAYOUT la LEVELS APEDO AUSTRALIAN HEIGHT DATUM —........— Wm,. mpa. rrepperey GI061201

reitlorarrnry Ep, Com., 1.001 .6-6,6.. Map, rmil 66r •••66 *by Eps Cons.. 6,699

.......... -a- J. GOWNS

PROJECT MANAGER Sto69i66,106 CI, COIMIC6

REFERENCE NUMBER

0809.WOR

SHEET NUMBER

4 0, 16

DRAWING NUMBER

3123544C0004

RE. 0

0

NM 111

II

1

-...,

allfic.12

xi

11 I 5808500

MIDI

1

II

UN

ill iiiii MEN

1 M 1 all

NUMB OMR

hap all

°

I '

aket

'

al

.

MM. '

,1111 ' '

- iininger

, . .2 a 1415ER iiiiiN1114

I I

EN iii ...II

11111 II aft Mil

awn R_,..r a 1 Em 401jecirtiglig

1111111111triticiiR

iiilillistaiirgillaget

111111111111111111111

' 1 I I

t 1 ,1 .ell , I •

vi Awe i ' I

ea* 4' 44 4 °' 'A • .4 4 „! „. ,,, AN

.!4 ','• „

, I ' „

i i 1 illatee. Li] 11111113

\ --

--'

law

MIR

run, inirmay iftifti' EI In; _44F:tilinelliii

rein141014-1111161101111

101:11111 MI

ard

...":

8 I 8 11 l IOW II 411111

IIII

Ile , . 411111:11 11:1

MIN firisea aft Iran.

lasa32 NalmouliM8118 NM

Immout Babst_

--

r ,---

'Ilmomil r ,4

, al MI

Ell

Mlle Ea ile Iwo : '

as Lm.....1"..11.1

'ft.-7 I

,

SYDNEY

. . - v 2 i

lila

,, t 1 L________ -- A TSON c• z -4-- ,----,-L. ----4-- ------RD- I-''F- _ •• . 0, ,

,

_ _-

.------- S

1 i 1111

Ro

MI , .

4 UM "111.1111"!

aftellillill Me ftlifte

, . NM leftia 11111111ftl

1071r r

4 ,

1 x

',.• 4 4 1 4 7

” i

GR A :, ' i , Iffin

r

g 7_,-. •-• ,,,

' ---; ' -r-__,

-----4 ------R 1 I

. RAY 1 i i

, ,

,•

4 4

n-t--7 i

11 1

-

1111

I

GLASSFORD

111111114111111"1

g ,,‘ , RD 0 MALVERN p, .• , ,

RD

lh-TH I I 1

ST

is ST

,

.2, "2. HORSBURGH

41.41

x wyNNNsT 1 ram III MP I I

10.161111 I 111

111 I I 0 IN

la 1 il iii„,

_ 2 „,.

Nal ai lame ,.. LIM 01. lei imm_111111iiiitis

111111111111111111 . ,,

' .111 1 11/

a

RD WVNNSTA V A RD

, .. 1

ll Ill II

1 RAJ°

SW 111 I

%Ai IlL

diti

II

1111#11;1.1

air a ' • .

I i il i

z-___ti_ui

E:.

.--........ ._......

:----__: ,.... F

1111111 ' r- - - '---• fJ SC '

GR., 0

ir IS°211rMEWItis"

A

dilinitil i :Ialiiligibigill Nilitiat :,..111111111111111 gala"

Eil lir till 3111111111 VI i

ll ralleillie !INV

iii

,,. „, _

171011111111

ST ,

I e

ifi 1 1..14

,4"....

Z/44

••/°,,,,,„,>„ 10:110 11141140...1111111111

MI" 11.1

cq

--.

g HORSBURGH GR

1 .

( 1

ST Me RETE

ill A V Ilia

li 1"11. 111111

Infti 3 in.....11111

NIIIIII -1111111M ara 1111141 .4142.41.111 i

NE 61 Eallft1111111111 anti 61411*L. . , wis II mai , iti4fta,t..-/ . . a. . iv i 1 i mei s i 1,, alittelifil

;so ..w...„.,, ".......,r mow

INifillialla L -

ow mow

sof A V MM.

LIA,,,,, .7,

WREN, iiiim.,...." - er lillimi•

" _ _ _

1 I 1 amarM immomM

.„.....„.... _ 14641-, - - _ ; _ I i e tr. min WI ifj 1,111

J. vais .....„,,, ...4.., --- i,......_....

inuift........01

„,..„...„,, i ..H,- ,-,- iii,..EL, 114ftursil

, r----- "isms

__Giat 4ItittaL

•

"left 1

I

was r.,..., i .

SIM wi itiammi

, sftiot.

WIlf

NI

.......eata1111110.1"

NEL %AN G

1111111. „,......__Irstwaft,„,.., INIIIIII . I PIE Wiszt : -

raliaga ll...,,- . ana , In MN Maw

11112111110, - 111,10.1111 et a". NIIIMIErs *AA' ailleilli.

__,J M. Mai ,...... , _

iiirstet2 On k awn inr-mi

il II It:MM. '

1 WI ift.„„„,„,„

Ili a nal

_ ER',ILBE„

41111..

lik MINI

2

... ,i i

Ma

nn

ia

ll

E

ma,

az

a Il

l 1 IN

a

AU

BU

. MIN ilidl

Ilitill 1 IS

resouni Its Illimmin • allic

0 .

. FET

anon .......

N

,\‘' , ' 1 1111 111

•

\\\• .

, , . . .

. .

. . ERSTON

• \ . ,

. ,

11111.11. \ ,•\

11111Mr. MIMI mum.=

g. iimpl il i

, II I

11-1:11.11

111111 i

, . ..... al " tilla

70r.....,,,___

0 Pr aft 11 all IS

Atinam-

nal I g I

Gad . i

shift

1

MT

rift

.=1=zareivaNWHIM

" I 1

if _

ft.11:1:1111: il

PCOORD ou,ctott rinimmen.ST ...„.7

.:11,11;

. VAIL

In ap el sass ..,

, Ea 1

. alma NI 11.111... L al lift= II%

valliiiiiii ------------------

ST

IIIIIPIII!

; AVALON III 1

„,

I, ,, i

I I

, ;WAR , , , ,,,

ft' '11 hi Av , /

II il il ill ili

ik

,

All III

1111 IIIIIr

1 4 u i

MI I

•

1 tai 4

woo,

MIR g WINN g .....

,

am,"

real Illitiii

CANBR/DEIE

al 11,1111.• . INIEHNINIIIIIm.,..-

NIIIIIIIiiiiiik if Tri

aft

A

CO OW

vase 01`1 oN, al azg itimax

II on II

am" ar s..,4 ir Waft

i i

k OIL

m..• ._ --- , . 7: 13-1 Inv

. ..

, oriG,ERNsEssgg \-. \ 1. \ - ,

N ',-

ii,

. Ili

Lis

. z I,

IIII 'k. \ 1 Alta

1

ELLESMERE

1 11 I III 111 i

All *

I .. I 0 A ND ENOND

11111 ill mono

,

e ' . !Ill ....... ......, ,

II

gill

an amiliH

a

0=111111fIll

6

Sill ma

-111 ill

8 F.,

.,, gir i mu , , ,

RD I DANDENONG

8

II

IN 11

i

• JA

mu i nom i IN . , swim I I

.....00,

. ... .

I ''' , a N . aftlilll

I aft/ o

lifir :"..111 ,

WATTLETREE RD

lill .

, im

VA i . . . 2 WATTLETRE

% bkillpv-- 1 ...-___ Milli _

::--------:--'

I

IIIIIIIIIIw sill"TLIGE0111141111

11111112.1

\---:. Mennalk \

illimbm. ‘ 1111

1 111111111 ' \ 111111 ., ....,

... .\ \

RD

I 1 a I . IIIII

illeinillimm. NOTES

- .

looa og shown I

ORE VU OVUM 0

55 00 0500 gosoMg0000E *oEoE. la

SCALE

METERS 25 12.5 0 25

North

•

1 : 2,500

50

al Al

75 100 125

LEGEND NM .............v...m.....rn S t. EATON

ram._ ...,,,...t.........t,,,m.m. Will

CD

DRAWN STONNINGTON CITY COUNCIL

NB 6 co IMO N.,.....° mg moa ... mc.r...... .1.11 ...........^a^g ..° MM. Imil G. a RAY

0 MI 9 -...-,,,,-•-....-...„

1.1..11.1.1•11.11111.1.11vem10.11.,..,...,..11,.. CLIENTS PEOPLE PERFORMANCE .,pcKpo FLOOD PLAIN MAPPING REVISION 2008 meow an m.,,num..am,.......r.an.,...,•omantme

111.1. 14,11.Pas Fadaro.........g ..m. mcosn may nom STONNINGTON Co co../ YARRA 2500 / 0907 AP AUSTRALIAN M GRID ZONE 55 (AGO 66)


SHEET LAYOUT

RIM 505000 00000000.EEY0100E500

=:".. '.6 REVISOR J. COWAN

rlROJECT MANAGER

REFERENCE NUMBER

0907. WOR

sUEET NUMBER

5 ., 16

DRAW NG NUMBER

3123544C0005 0

2

15

SHEET LAYOUT

Z I ” 1

r

ai I

WO

TOORAK

0

I ail

Oa '

i

3.42

50

tIiiI

I 1

. _G O:

yyILL

IAMS

2 2

x

ow

m

ar

sa

IF

_,

_ ,

. 7

,

.

: :

, I

t :

,

I - -_

_

i

/

/

/ / / I

/ I , . c AVON

L ....... ,

.

Ill I 1 I ... IP p 1 1 " ..,1 „7:11

.

, ,

I 4

TRAWALLA

0OUGLAs s,. , ' 1 ' 1

,

i ,

1 '

I I 1 L ,

1 LA CELLS ..

ZT__ s421.) . sr . _ e

1111 11111111111 RD

s) „, / ' A '

1 ' ' j l4

AV . I - ( , , 'ui , ,

I/ , _ ,

1'‘A'

I P

IMIN

MU Ilia

8( .

E

NSELL CT

....---

A A

A III A WI?sso,.

I

^DAL-RtA

1 .

' / _

/

..,RINGA PL

N

I ‘__:... _HEY

—

— . I cT .I,_._TIAL6N01/26REENKNOWE I

, ) GLENDYE

III\

11 1------__,_/____

huTI

....... I . I' CT . i I

I 1

di

I I Go,

I WP I 1

, EOR E

I I /

/ unrr cLef

-7±-1 ------- m L --L-

f

.

111 sep.,________

I

11

5809500

we m

2

AV '' (

CoOLULLAR

I sciliv sT 1

' ' .71/

, 1

, IIIIIII,

lialk , pen i 4,1 4111111a QUAM

ran wee

irommila

III Ili". illifil

6.1w.s.

1111111ft . .28. IN tan

........"2, X

.41........11,

INegl

NM ' -'''

. CAssELL "malwaN ' 11311411=1111.111111117111111171

_

i

"

Rill 1 . ID ,„ WOODSIDE

.

112 111 Le 1121 P

44 I

I I

1111 ii

idilligaillierr

as

IP ai

Ill& 11111 11111

,„ lilt °,, . ELLERSLI

MUM E " EA °am.. Eiasilefi r

a,

_0111111011111111

III

' -ftaill I

NM s

el I ° 'ii . maimill 'r--- atil naim

6211111 illopsess Nome Nil ••••••limacla ammo

Mel I Haw

...... ----\__ [

cA ' 1111111 ORMS82) I

. . firtiarmi

11111....--_'"Immi

81200 ILLE I la

°). 1411 rs a,,,,,„Ix

----- I -----H

IR alau.s.,

17:

imililltil I i i III

....11 gli

24

- -.), — Mal

immite, Wale ma.

Now

In io:RT 2

210N.TA j __. )., "

! ONTALTGA0 f

i 1 =Miff

vi „

'

------:

NB 1 _ '

i gal STON'EHAVEN

CT

I ,

Cl./ .

\ _ I

'Z

1

. .. II II

s ,

. is

1 ' MI IIII

ict '

gii . - I

1

RD

'MORAN 60

I 1111- 0

\ illis....

mil 6 cLEEVE 111111

II

II MIN

. ......

alk

' i 1 ' 111 i G R

IXMI

gii.

" I --rod,:

1

I 6 APRTIN

1:11c1, I :

' 2 6

timmew oi „ /

=er a

1 11 7

,„„„A

w

ari i

,„1

w

an

:URN

ELL

§

IM

MO

§

wLE

IGHT

ON C

T

p(

al gal ' ' \

1111 STRADSROKE i alli

lakilaip - AV w I

.. DUNRAVEN

Nal in ' BINERRIBMISPII

_ -L---

,..e a• vms0A800 )

\

6 GLENDON

,

C is T all

AV

__ , ,_ AV

: I I

I.

-

.1) I

ila 8

MONTROsE

• iauiv

III

CLEEVE

111111111

'

CT COLEoT

CT MCSNIROS

p

' \

milimig,

fill

:41

iiin

OM

al

MOTHERWEL I

i 5,1rli i

111.2114 iiir— i

' 1

ilififillifilli 771

: _Emi."

H0801

ha

11110,. Iiiiiiitilt-a lif i

mirmir v. IF ...I

all

all

einem lirk

I I lit „

1/1111111111111

' 4 WI

Ha

4111/11111/11111

W"" , pore

IV.011 III figare----'......nr \

irlilla%fth' \ \ 11111t1 11.111...„„ aftimilers

EDWARD MIN : II

allIallgai

1 11 ' ......

°12W ' 14

1 ......

S IX

SELBOURNE

1881158, I

la "MN la

I ''''"' 1 . ,,,,,

II 1111,..07 Laufall

RD

- "eft MILLICENT

itqlitilliiiI

IIIII:W:1

111111

111111111 ' II

ST

I I

1111111111

ill

all ----

R

Ay

s

II e

II

1

AZ lila

HUNTINGFIELD

FS

S I ./A M E s ill 111111 PL

iimi , II. minimer .

ramm

om

111111

11111111116

le

1111soll AV MAPLE

INIIIIIIII

GLEN T 11%

.. 1 1,75 ams„vERN NUM

III

v , .....

Mil En

III ili , . Ilan" Illifinnlisinm

)11111

- it li

ROSINS N

IRENE I

" 1,

7 imittv

, , MIN

, .A.in

li F II I I

IN 711 a I 11-111111 , i. riilliiii inn

.... an

/811111.al i Illatiall

nou

ii . ....., NI ram , __

am ,....Av atima" ,....., ....0

.......usl _ Mime IliamaiLlft

mulann -

sr' ' RE MRCS 1111 11

•

L= 31 il

.

, \ , . • ,

ex... ma- ...... Eaa•-ion...-_

c.' ma

414 .0,

1 _ 3....., __.

- ,

iii

IN 1114

.. RF„ Nog di 1 s,.

7 2 m DEVILLE

0 III .

ir now l' ?NI \,> 1

.,„,. S ... ''' ' // 1111

.„,.. „e„,

-.../PW

IONS

IN hp., eel limmar."11 di qg Ilay il

I 11111

EN MIN 11111111111n

IIIII

aft

IIII '

N

I L I

2 iralla RENT

ileaRiN Ism sill

4116, -

-=- sm

M

E

ip

nal

aill

a

ft

08 pW

i nGNOA008

1-- ft " ,

1 ilerIPIIM

6. Rood Mkankdon AM Mates orly lo rimormers Ammo, forn.caNNENts edge arsImp system., and irAYeearryalonnOMOIMAO.Obadav•Ms Or P.M MAMA. Or Myr... ordain.. In...AR.. of Nog LIMN. system. smear MoMmels. mmt. arEN Md. MAMEma Mommumosull MAE.. Awes MarvAle

upaImNT Po Asposr0 rmmop MEN ommt EA,A,AppEN MOAN AMP MMAPPoWalsoirana Coon, wpm.. Mem. AMP ARM, omMuM •APIs OWN Mao 113

ft.. Mom p Shaw almot MAMMA, may ovIEM EMNs ofime WM IF ANNMA Wow. S. Ns.. AM. m. EmAndlon AMON latostrovison NAP WM o, SMAMAN, Rood Rain umplm

RovIslon MOW Mmum. Mar 31,295.165MO NV PM•dto agaumANA aM,PAR.NA AAA ',MA pot Ea mlm.M.Mam msfltations. PPM la m.o.. try ol'eNceM0 GM Pry LO

hom. riot Imm oMpanaNN NAN. MENA Nu. mt. um omm,,,,,mmoiLME Won Ammo ANA, MEME Aoloolmolomrs

rmAy geEeFML. uraMMAI Mos may *ohm* iloor Mtleit nooM9. •reme of Mt Move.PROM of SON,Or. 11s. not warrAOMOONMal ropFLes roONDA

SCALE 1 )2.500 at AI

LEVERS 25 12 5 0 25 50 76 100 1-1

AUSTRALIAN MN' GRID ZONE 55 (AGO 66)


• North

125

1=.50W., EA. d MELO Modrm durEm. pPold prelatiRyMod LEGEND mon EA. YEMIsMa Modmanq two parmi {AMA,.

Eat of Wm E MEd, Ma No mom. moimNRy

MN Raw loml Utleto fteMm Mingo mo Amu, moOMMMAM

RomMMOANNM0rMARPAP MAL IProP PrPMMNMM RamIpMMIIMMIendripMANAMA,PAPIRMANM flootl

OFA KF.MPAMMAmn PAMJ• *JAM Moe mrrtm

MINI NOVA. 401Psk honom.a tow PAim•mo portett FOMPRy Mad 09P WAN* maw (Mims. 006 mrtorg mahNNMM

AAA. INA,M0 WM' von re* Ay MO in 2006 MAming MA Norm rnmpNi OND in MOS

•••••• MN:Angle. !myna rem. IN WA ConpAim A 2001 Momm lomoaMMMK, EPsConsukrqui

G. J. EATON

DRAWN STONNINGTON CITY COUNCIL

GO. HAY

DRECED FLOOD PLAIN MAPPING REVISION 2008

YARRA 2500 / 0908

CLIENTS PEOPLE PERFORMANCE

mIYM

= "r5

STONNINGTON Cry roused

J. GOWAN

PROJECT MANAGER Stonninplon SG Council

REFERENCE NUMBER

0908.WOR

SHEET NUMBER

6 51 16

DRAWING NUMBER

3123544C0006 I

REVISION

0

NOTES

1. Cm ported poiNM

" •

" ^-• —,ot",„°1 c7,.."1690 mcial Wm. Emmy =IMO] suMMAPOLIMM tmmd ...Y..* M.. CM...FANO, Cm. Nam, mortons may ditachonolp. mom ra mmime oft am Ma mad opent °mom,. morns mr orly M Mtmrime ty a NennAMPREN.

Mm oNPANA.M. oNM .SMFAMMNAN,MA MR.. OW ad Om NA MEM OW Notam•Watac Com. or,. MoNg• systoms.

5811000

92

45

00

32475

0

Ii1

g

5811000

5810750 \ k

• 1111 -

II ' ' mil..

, BiEREB , / 'N' " I9 --____71

m I m

milir \ 1 \-

0.PPR

1111111% m a i I. i . 5810750

A 1

,--------- ,

\ \

----____ - •91/60

,

\\

\

1 ..

(

,\

\ I

Ali<

I

N \

\ \

\ .

Noon

P. . '-----, Mirmi..... '

311 11111111 11117 16 BED OMNI.

HILL

Mum al .

, mATTHEw.,.

, op iii 7 MOS FUNTOFT

ONO ,‘,„ ditr„ --,,,, I. ........, Gana

,110111EXEM If

......,„,..,,,...,,....,____. II, , , 1 Li., , , isi ..„___„,.....„,,,,_, ,

44,,,oilp

.., ., . , ass, ....0,

Ara ill

/ A,

' ..../ '5,

i

lifirif

41"4 . 0,„sto- 51

ID . ',

,. t‘, :111111,,

\

\

\ ,

,..0

1. A

---__, , ---5810500

,‘ , ,

' '

i ;,`

AV i I

11 tar II il•

maim iii TowE

\ i ‘ , --- • 17- --1--- '

,

ill

....... ....

lila la Mkt 11111111

mow eiv iii01111 IF

1111141111111 Alio laa all

Is plri . um ,t.,

.

118 BURNIE

1111

II

IL! rs____. _.re---iiillit ir--limilfta ;Wall

innollaiN=0 11/42

2 liallige 1141 NOP pr CHASTLETON

411b

7111 11111111111 IMO

m Ow .

. ilftli 1

ONIMIN

STRUAN

rill!.

49 mm•-•..... 2 0 '

. .w::___

111111111 Agri 211 11111

lift ram,

nal eis win Nail

:

.

11 --1----1111

,.., 1 --...........

91 1 '

1 , KINGSLEY

ill

At CT

OP u 1111 .____,___,__Lt,.

.1.--c

.

\ .

\

11111

e N . I

,,,

..... \

MAXWELL CT

400" Wer 10011

1 III 1 1

AN

, -c- . .,_...,A ',-- 0 ill

. all

II 1

MIR *4

\ N

N

\ \ -----1 ,

Ns

41111 , .0.4.0 , T i

faill lialiiii

111.1.250 NMI II

. . _ -

MO 9 'm \ --___ \----

11111

LS-au I

ill :1--z2=5:-1 awn • Imam

LECHLADE

Z

2

awe BRUCE

alf

s

I la WASHINGTON

1111111 AV

g I N mum

A ._, RATHMINES ..2

3 Mg liall Sr IMIIIN

-NI allnir 2 111,-, I III

I Illi 11 mi.,. ...,,,,„,.. ,,, ILI nal "II

11111111i in Eiv ; 6 2

irn .....

/111/1

allnilliiiiimm.

, ! 11/4 - -- II - 11.

61,10 ,„, ___ _ •

i ST ........---

I ST r ...

i iminif

, , RosEArso„,. Silla 1

.

, . ....-:, ,,,,,, , ,

, . ,

ToN

,

ST 1

al

ir •

,,,, .

t I jai il

. v , .. •

. .11

1111 \ ,-., \

, . non \ 616 ‘

MP' ,, CT .

.

PL ,

. . \ / ,

01 \

Aft ,

1

N I

, o

i 6

RO' I 2

' I

rail

325

75

0

, , , : ,

t

n

,

HE

YIN

GT

ON

ip,

Elf

,,

oNor

, w

an

. ,

_ )

A me.j

ia a

I

\ \

\ , , . .

Illag \ I ‘ g g lie

i TAHARA la II

NOTES

I, Ilm *Ma, Vool•ylw•s show we*. bo la rucloclexIngs lood••• • 1 in 160,Zogs,bez 6. 11.1rIonnbOon show F.,. floodnym sm., iron.. r•I,••• ...Mr ••.•••• ••••••,..... •••••••• or mewl. r• ••• OM y•ar 1.• 1..1 •• a lea 'warm'. mamma in I.., Yam. for co- flood ovals on ot•IA am.. or othor Ms or crelns. In tlx. low nuflos of 10,3*.c condt.ers provs,.••• lime 0,..parn....., • •

a,•

tl.al• •g•n1••

a•rPls•. *Flrall

.e ivn... .ths •

••M •••or• .

vob.e.illa1s1•

t•h•a•n• t••o•m•• *my

Touin

v,ir ns...frerntbea w•rls aiorp ale

"="= = ' 'Ir. 4::rarg " e===" llowt VOLIM ort GB • . *sem on q• urnmn.np Ms irrn,••n; As. haw striOy r•mie ol 2007. arcl *pat d•tai.e,•••36my u••••••Un . thi. City o,Slopn.on .s•arg6.1...aum•Vter drains. or C.. or pin/A• and, 0. val. oF a....v.•••xlarts of WIEIP.A. lo ain. (Immo* coMns moy allmr tromilase* et M.. on Pe analysis. T. ex. extort dloodno rer mdvieual floacAng Axon 1.1•••••• con wry,* ftlemirotl by • Acers•tl M.., , Sham stmel !boding rray mur owsios tlx ey.rts 0116. lailo•oodrp show.

' 'I"' ":I;" '''' ren"=""' "'Tan% 'TV *'07::" *"."'""' *". . r"''''''. 6 Ms [1. I... m<1 in saran .1 Ole MI. rwismn ol tl.• Po. •rt••••.•,•• ...1.0.•• . •,•••••,,, ..1.1

Parklon200,00M.. ••••13er 31.514/166368, art it sulz,ele tile Ms ma *Mations coftain.... .1. Lmal•oed 1,0' ol•ef arm, or In... ?I ..,.., stow. ney wax. illa •A wit d ?Wog sbewrl rob. La.. XI. rport is,* to Ur rnia.thaa asarnens arnutions mat. cot.. by Me• to .CH, Pry Ltd. r ==.•.,C,:• .' S.W. •••••••• .0.. orN. •74•1.1..Mar ...me Water. S. CM. booty. al.* rm.., sp. num . cr. Ia.,. Ws uns.okrhy.• Cty 0 ,F:8

F88* 028828 88 10..••• Hoer Yr. •••• aveRalf.l. Cm DI inapnprnts . nom MY to quadng 88, 8002.8 Palloorini..•• loc. olastraction• to ova.. low such Rs form. told, art nn. mom.. ler wry rrop••••.. unsham proms rr, .0 ....1.........g. IL µ are. 04115...V0,1115 Clyo1SlonOrpon artl its 8088855,de rd w•mart. mcfrilanirniss re• not fly. M.o.

SCALE

METERS 25 12.5 0 25

North

•

1 ) 2.500

59

at AI

75 190 125 , F___ I

of Iv...10 le ftarling ant., • or. Forme probsdlry boa

LEGEND on Ye 4.1.101*.111021,..s.,13.1y flood G. J. EATON

. AstOoto flooft Oulrg• fry* md props, rood

C701

STONNINGTON CITY COUNCIL 6 M

MIMI '•••••••,..trn•••,..P.•••••••W lo. WIWI

D

G

R

.

A

C

W

.

N

H

AY

5 ' El . ....4,....0,,.„4.).,..m.,,,,4

MIMI L..•,•••• ••,..,•••`•••.••••.••••••••••••••••••••.••••••••, CLIENTS Pro P L E i PERFORMANCE °NECKED


L n 11111111% '•••••'••••••••t• •••••.••••••••••••W• •••••••••••PW. 1111111111 .0...on r.,.......na ,F,,,.....,...toynow

••••.—..—• MapprpAmOor areas naqa.11,6f0 rn 2002 giiIigin.. Or

STONNINGTON City Com./ YARRA 2500 / 0909 AUSTRALIAN MAP GRID ZONE 55 (AGD 66)

LEVELS ARE M AUSTRALIAN HEIGHT DATUM

ii II

•—•••••... ...Nil for arsas msg. by 44 Cons.p m nal TM.'

J. GOWAN

PROJECT MANAGER Sionnington City Council

REFERENCE NUMBER

0909.WOR SHEET NUMBER

7 .F 16 DRAWING NUMBER

3123544C0007 RESISDN

0 SHEET LAYOUT 14

-

0.10 WATTLETREE

$

\-- k-11

r

1

II in...nug , , ifti ......._1

gT

.

1.1111 ,

i '

'-g" J , — .,, .

.

i v ---

imp

5 TTLETREE MI

......... Mem

I . ,

......„ ,---, !

i

. GORDON

' I

Mame 11

No ,,,. ,,,,,, e

, , I. d , ...,,,"

,... I 1

rex 1 I

.. ... ft M - i I

1 I ' I III MR I I

I 4'4' 14 I r I

I

ii DERR

I

' I

8.

I r

, i____, Li

$ r

E

IIIN

r. .

Pl ' ...

AV 10

1 i I F-------

, I 1 '

L t-r---

am

EP

iiii ir R. wmit 111111

III INN _,_,

. '-----

' alli

,

,/

eft

. 8,

8„ IL -- u.

111:11111ft

‘1 Int i 114"1

ri 1 •' r

4 ---___/,_ I i i i

---V----ii

_ / ' 4. / I

III 111 r_ WH/TE

ll

IP"

,

Ili 1 •

rc '-------?- e

' re., 1 I

, E HEATON

1 1 / ree —1 ,

I ' ---- -----

•

,

i

1 /

.. III

1 111..... im., ...,„ ILL

, ..___. .........1 I I Gli

1 I

IllMi lliill

1.111.1. Oftlii.

9 lift 1111111111111111.111 r IN PIPRI

. , NI "I negating

I

111

, ant •11,11111 ,i - Imo

am ... lil t-11

RD

...mg win

EVA DALE imam

iftx mum

e

MIMI .____11111511 ••••./.. ••••.....'---

0,0

4 0

, 11,1111111111111 •

II

' 1111

I, r

-------Ir i ' 1 NI

1 i 111118

-.-I-, =---- III

al

MM.

Ell 111111111

111111refi ale III I 1 PI:11 bf

411,1111111111111N■16--111111C--,'

I tO ._;-,,ws roma Nal

. , --all 1,..._11111111 NO it.1"'

. R soft MIN left ) g -7:- -----

at ______ , - ,, --------

re- NE igh

11111111';'

1:---: ------v- --:111111111Lr:

It

18-1-111/11,11011 :11111c11,1111111.111111111

11.......,....

Illif -it —11111e-- 1 ,,oysio

8 I 1 -gill _

,_____11111; ....._.-.. -ll i . im...a11111

num

,

„

Alkill

: lift

all -

"IIIIIIIIIIIIII" '

_....., in........11 all AN

ST

,

ammo'', anil

11111M as .... AV 111111111i

pi „

111 III ,

0

11111 III -1 ,. MI II lit

I

Ilif

MN

Ewan

1

11" 4.111111117

1111

' MIIIIIN

.8--

I

I

I

1 5806750

0

fr

, o

------, 4.. \

„ 6171 immoin nig

„ 2 -----

-, .

messen iiiiini

orftwann ,..„,•,„ gi

1

' liml 1111111

p NA ,......em .., 4,11- ......

g RUSHMEAD 1111111 11111411

g

Iiiin Mallow

1111

lirl

---„,...-..mftemeramplimm i ---"..M111 "".../E1/ 2 in k WE 'era

---9,1reer nom i .

A 0.10 iMIMI _ . 11

. NMI a

11)1111:*

----- L - -..... • _ . pm 1111111111

lit r 11111111111

'imeE .„,........e, i 0.15 DIII' • imitvicsat t- I NNE

IIPI Mill 1 4111111 MONO" ammo IN.— arner./ "4"--414‘enkk' • Rilliemiii A 1111mmam.i

111 MN 11111

I e

x

III Al I

.

littilliam

III

11111111P„i" ..... • Mu Ind

1111111 owns

simasa.m. Rifts 1 NI .., 1111i

RD avisils

I

I

I 5806500

imi....azzl

`"1111116.111111115 ME

MIR

IIIIM

miiiirmiy —la! hilikt---WIT IINIIII I ' NM 41-11.

Ir __NO aimi Num ilmallellIes

• ft/ft

II alp ing Dim Ws' rape

MB aft NOM ...... rar lea

ii....... samensi _,_....

.11111Mummi

raft

iumme

_ ',ER, Ro

nall6...._11111111 I lalligan 1211111111ftt 1M ram 111111

aig - , aft III as milli

R 0 GOPAIN

#11111111111111imn......

--"ouliallICIMENIIMI

111.111111111 11111 II II

12111111111/1111-.11" . II ,

III 11111111111

ST - ...'...

AIM

I lialliillliants--/

, 11 XIII

11 1111111

1644...

I

'

1

al 1 ' i

III

- ___inriams.. n I I I

L

L 1

g

alb tit

11111111'"-- MI 1 LINK ____Nue

griffignell env

% 0, iti,

2 11111111111p, el

RO IN a lumain Eft

. ) g

1

,Ilimii,

.ANA,, 11111111111111".. , 5

1 PI

1 1 1 1 I I I I I I 1/1 it I fIl

Einglaininlaii

PIM), , 11111111111111

IN

DOMAIN

1111111, 111111111 Md.

Ma i

haul INN

I ' ma ..., ifters 1111.11

111‘......— allIall

ST

11111

II I I I Wrin111111.1111111

Urn a , it____

sonam.11a1.111 §

I Will

MANNING e

,

R

11

1

I

1

d A AA...Awn onm A a r s A n ky:ffinm . lop,. A ...AA AAA.A.Am nA aDra u H [H

EE

a

..............,LL^g•..P......,,,d

I2

IIn0

1411111 O

P

N

LA

NI G

M

T

A

MO

P

IN

NOTES

cam*

North TMA$ Y

R

COUNCIL

e

ATO N E

N

G

DR

.

. AJW

.

P ICNIGT I

I

N

NE

m n a

ro

te

w

o 6 nr

e

, o 0

e

r

w

m

4

a

e

an

r

y

e e

A

en a

A

0 .p

.400Nr

NI

1

I I

1

IM

1

IINI

A °

,

m

o

.

f

o

i

o

n

...

d

.

.

od LEGEND

Ma

p.ro0

.

ba

,te

br

r.

n

e

y

ee

l

e.

o

rm

ce

.

ng

.

.

e,

1

s

7,

.,

1

1.marm

ecaorll

e

.

Fwlo.c.

e

,,

M e.

t

a

o

c

t.

i

o

.

.

ro

e 9i.t..

&RI

MGCHAY .

4/0 FLOO

S

D

T

my laser Mon. .surnadulwifirounlsurfey 4....W..Y.....i. 9.4...eees• *mew Awrew ewarna/ ...ea orwe *me...000 erNecH9reerne/era .., 9 SCALE 1 . 2,500 al A1

NM 1-•••••A••• P... s,.........., • •Pern V.W. CLIENTS PEOPLE . ,,,,,,,,,cE oHao.

08

7 ......,.., n, ocatkr outage Me uaorts of knamonoodw am.. 3 sweat. ...come,. weeetr.rsron woes mew. 40. 9/..etlee -wreer 904 009,9 8

Bp METERS 25 12.5 0 25 50 75 I00 125 1

Mill .....6""P.,...,.......g• .0P.......,..d MIMI •A. a vs preodp.abAry ft. K..• P..,..•,......,,

STONNINGTON OS Com, YARRA 2500 / 1006 ...war poem. Nerreereiteeswressee/ s.e. 4599 toeYe.r.09...erereHeee...00.,04/.4 -at, I I-1 I---I 1---I

AUSTRALIAN MAP GRID ZONE 55 (AGO 66) 102 W01050 n mons eurtnp• on,....,.. 0..e...dee... er........Nores cameo 00.4 .0 eeerw....../.00...v/AY e ce.......mee 04nvre meters swetnerrees ..9.0e0ons rave wee 4e0.0.09.04.4aeree. 11

urn. ,Or ,,a,,Y [Mar. ...doe prop. es reNeue nue looriews. Paw 0 0.49 u A. • AAA a. .bn the CH A AAAVA A,.A.MHA. A.mr....°R......

15

4 SHEET LAYOUT


—

J GOWAN .

CJpTo /n

AMA City Coma

REFERENCE NUMBER

1006.WOR

SHEET NUMBER

8 .1 16

DRAWING NUMBER

3123544C0008

REVISION

0

r

1. ;

1

-----

MALVERN i '1' '

1 )

Mb

I

, 1 i.

137, 4

0 I-

MERC

ER

RD

,

I

-1 '

' 7

'

' 1 1

- ,

_ _ i

_I 1--= s_ ,--

HOPE

TOUN

_

B,

ADEL

AIDE

2

1'

'

b agr

illa

w 1N

- --

.._._

__

1

WOODMASON y,

, „ i

1

ii al pee

EMDLING

I"

am IMNI

MIMI OUNTVIEW

k 'i : i

ST A I

bum Nis

I / I ' ' I I

RD MALVERN iii ir

1111 R

ION

, x '

RD era ASHLEY

,I

' all WARNE ..,,,

dill il , r-- - -FT la

Mar

,

r NNW

DR b

I Illia .. 1 ,---

0 . ST

1 r '

i aft 1 ,, . in rimpag. if 1

..ie MI im

A Fe-r-

I ale alla Lf I

MIN MIN II INN g maw

imat, I Inalliza

I 1.11121 pm

alliel MIMI ,111111111 alienewila 1111111111- • .......__18 . _I.

szgLE. "fax. am Egg , § cifr ii

- V 32

7750, /

li I I I r -1 r i

/ Q

, . 5-1.,—

A_ t_

L iJi,

i 1-

i 0 it

, .. .

cA,sw,

c,c, ,

"11

1 '

sr

' _

—

•

I I

, /-,

i '', %

,__

L _ 4

N

a _

_ v____

7 /

T*

___—

/_L

, ,

_ /

iv!

-,-;

_c7

r_i

i ll

ip : i ,

4 k

2

- _ 1 I

_ , , .. ; ,

I - —

S

i /

/ .,'

' --

E.

, / 8

, ED

GA

'

I

'IDANAO

.12

I an 1 Ii

II -L, kin ' ,

law, b. V

CT 41 LItZ117

il TowEA e.

1111:11 11111

ane ft. ill

1 . 1

e ' linfa

mil

I; i .

MI

g

"NM

li lli

,I il RAVERBRAck 1

II 111 MD

SORRETT

I i • iilionii

-111

.111111

--.......1111118111111111 R

' ,

EMBOSS

III r :.' . i 1 Ogg i i ...

-

AV

1 I

I

_ .., , I AS

i _law _ -- _

Z 1 : -- -- -- 7' - '' I -

.

* a

all

ai e

.i. , am

le li I-77

S :',44 - 7--- ''. __man

[7 :

sHAP

TEse

URY

AV

"111

1111

1 11

111

_ MC

AR

THU

R

A

da

ft

1

I i Nil 4, litiiii9 .33 MALVERN

IN i I an Ili a ammo

ma SINIR

ill MIMI MINER 1121.111,111t . lift . mem. NA

ellillesisa MON

alindrftn ludilltalmeig

:1,.

mivaila

Lida

liela

ha

\ mm, IIIII MIMI im

MaNs.

' I led A masa

allikili

aft" 41411111 ...., Mee

CM.

MIR . 5808250

— I .1111111111111 MI nia KELMSCO 0

'''..11

I 111 We

Mill - MN YA MIMI iti III i

12 IIIIII tellil..... .....ai ....m,

NM

alli

lin .13 0.00 lea

all aliii egi 1111111111 15

- . . a Waft

111111111 ali

It

, WWI I

LI 1111 iiii 1 am Imo INN

1111"11." "Imimmill ...___Irwim mi im misiessi isms maim 11111

Mill Eall1111.11111

aft.

11 inii

11.1! III - Ifinall 1

Si 117

let 114kmitami ir mm

111(T1.111113

g 0...11m1§_ IIIIIII Wa":"i mmi, Mari

MENSPOM ifilnits.4.

r .,, I "..* L. d ,

iii all .

.

ink 11.

1111 ' „----

on 1 ,„._;.:_" 11/ 1

a

4

IMMO i _---cs",--),,, , I ' .„4 --- '

'‘ :

issillamm; itIMIHIpas I ...., : k

. -:_„:,

---------------.

limo

ow mi. .4............, maw 0 imou, EWAN mom Ade . .• ,....: i Oftlir: _W-7: f:111.

17

I

1 I

an agi Ma illftilli

ii,

III

liti Ift Ill me

aimen.1111

Waft

ralle

1/1 KENT'

ST ftili

am= 1111

.

i

id If mut oaitm ini raillinilliall

Er",

...... rfaili

MI Mae

ORCTIARD ST ell We a I 111 111

III III IIIIM HOPNST E

NOM

MN li III

1 all

I all

iii

.....

alle

Ilia NMI 11111 am

- am COLDSLO

wi C l 0 E i l 0 1 M M2 . from

6--__, ‘ks

ft 111111 ., , wow ormi,;...,......, ..._

o

, i .........

TANHop

.... _,•,,,..... IIIIIIIIIII " 4 1"4 1

11111/11/1111 ...,,LETTA

6647

ii".„ s

II

CI

an

4.1 7 1111

ILIPIL

Nall

I liar

I

I 1111

I ._ not Illinsui

oft.. 11/11111 Rai

nil 1 alniall. ' lattli....N.M.

11111 It

i STANHOP

II

, ST

4111 al ... or; mil

aii

WI, 7

, i lam 7Imenlablit11111111111.01117111.11'-' 1111:1111:

........._11a11111111111

111.1111.116111

ainilliallital MPS I lall naimmmia lit 11111 aril

....

or INAT

alualliamlimmaimmummagulmiamil

g 11111111111 Wrillif ' Mri

MIMI

1 r Ran itil

ST HIGH

lir Z.7°'• ft ' °

iiiir

.,. 11114111111 I WWII lia

111:::::=7----; I no _iii iiiiirmenniinia, 1.--trz

111 KLY :

NNW

Repormiiiii'll'ilairi al , am Om 8 i i i ---- • ' '

I III a I

IIII.IIn ED

_ am ‘ m....v, ammo. mmm mm .____Arthom.

\ , \

Sum

'MIMI ...,,.....XWII t„08. Ilan it Millift .. ST LLAN,,,, _

1 gip; Exam_ \ \ \

"11111111111141

---...... Ng 1

:17E R

I11 I 111

line

LL IIIIIIIIN

III INN a

I: '

billi

MINN

1 a

rill ri II I a

I ,., si- aft . EN

o !

CANS . \ : nissa.i,

1

IN

tan a I 111 I Mr I III I I 1 h i

&am

W. mum Waft

ailla al .,

alio

iligialles

a RA, IIIIIIX SRA ST RA y ,

GR

I wow aim haft

swel, mit MMEI I m in • . . . . . Mil. MI Nig

le IIMMI. EXIM ....1111M1 „WINN Millir OW 1111111111011mm

laISM ME

WAN =WI paatio.„ MI

mh0O111111

amilim asimmilluftuftill aux rasi Mil law aim oftlinat__ &MAW

°Mill 1.41111.11 illifir

ST

Al 11:1:11:111111111

167.14.1_11r...44„,„ J.= am

a ali aft - i ,

, I

,,, Ns nu \

- , allirrise

lei

mip ar 11111111 -41

jth1111111111 ' 1

2 73)1111.11111Mil

NOTES North LEGEND . •

G:177ENAHAT,ON

STONNINGTON CITY COUNCIL Igi ' cm 411

Ammo. 5 9 SCALE 1 : 2,500 at AI CLIENTS PEOPLEIPERFORMANCE CHECKED FLOOD PLAIN MAPPING REVISION 2008

--. 0 12 16 METERS 25 12 5 0 25 50 15 100 125 STONNINGTON Cuy Com. YA R RA 2500 / 1007

05 600060605 5.s60 15

1 I-I I-I 1-1 I

AUSTRALIAN NNW GRID ZONE Es (ADD 66) VZ:=4-Am

SHEET LAYOUT 14

LEVELS ARE TO AUSTRALIAN HEIGHT DATUM J. GOWAN

PEalEcT MANAGER so

REFERENCE NuMBEE

1007. WOR

SHEET NuMBER

9 0, 16

osAvope pumsEs

3123544C0009

REVISION

0

NOTES

Cre pro0a1,61,1=19.4 Yowl ara artp.1941a a.m.... ▪ 9,•.••,..^ 9.Y a^,...1•91.nowisa a ii,aar avgrg• mamma irtarrrn....9,trya... toposrapiccor.ers ,A,airog Nem an. of pg.:oration". noaarmy eavrter• tha4 ore. ,

2. 2'"2*-11: 1:2,'. aoriallwr sway pa,. In 10a, .sulzep....•19,1•0 pnwnIS %way ...kw try. Glly ',tsar:n:1ot,

.9,9p9 fordtona iroy [Carton, tos• *se/AIN of am aysia. Tle wad agar. "oocFnpf [If ird,clual • On`, 04.m.. by • Aarnedsurvayor.

3. Floals "aster War la. or• parert cap IN.r,9 such flooas an am pel•Illen. show woulas ,nunda. Comm., p.m,. 4..9 am. snow can snachk11,,Gads of Wax Imp...

4. Local Imerig alher amts. or In mons al rho eq... No.,. may mac gaga of aim., stow rotalst to lox, In. Fre,. reaches aw City of Romig/ors eranap Lancia pcvata eta.nag• am,

6. Fdad !Warn*, Nairn lo caldmvis of am cirmag• Ina., *Ir. . or *snorts or Oraira matt .91,1,,,m, ea Wan Mom sAwn ray roue Tarn

..41,0)firnts of aszt my* a., 11.190,e1.1.41,x4ma Water or Gem, or pinto c.v. sew wen or ...a aneas ol bad Nallelp

Saadt.s* , Shams...oft my *car out,. IN trans of Iva latla flooldn,show. a. Ths a.. Ca ma in corrn atAls Mastro.. of the Won 9.1111,City of Store,. .Flooa PI. map.

R.66on nalr15.5...51ne•ramnAsmerAsa, am A11.51(..111.1.115.111..(1,1(.111111I(.....E. (Mary. yw to 5. row., tea/ samt.n...155.11.1(1111.(1(E111(15E.111,1(11.116,E111E(1

9. [Mauve. mama ntniarl. nernwer6.5 5<alIons my. es. sa•65,5•05 (1 5wan

10. Wm's, floor .1.1%. nsppil, Min .15.{11.4.1100.1. ury shad, flow Mt* unarallable for wany pa* trehadatipropargas moy Asa nave nu«,

11.14 mut ottlx sewn.. 01,519(on(6, we as cors.nts voaturt IFIA,612p19.12111•11(110,10555(1.

North • SCALE 6:2,500 et AI

METERS 25 12.5 0 25 50 75 100 125 I I-1

AUSTRALIAN MAP GRID ZONE 55 (AGD 66)


LEGEND ROM D.. of WV.. newirq .45, a Rya parc.,,D124:11,1ao,

NUN too.to too o totote owe

• 50o**2h6.oO*200 0yoo Flow 1.91 rub. to an.o.,,rp ...M. pecan rcolatilly flood

Inn L°W Fem. rabdrfly tlood

1(11-1...11111 01(56.(1111, E1111.111,16.111 111,1(11.1E/E•b,EVIE.1 NMI promkr o ow.; t now et., a* preen probsdri y no.

0.12 w.I.(1111 EnAtros 1/6,....0.....5116501101

- 05(ver arm rappea by 610,11003

- 29F1,̂ 9 0,,,or arms mappaa nor - U St awls rrern

G. J. EATON •trie

tit FLOOD PLAIN MAPPING REVISION 2008


sTONNiNGTON co, coo., YARRA 2500 / 1008

01.WN

G. C. HAY

CHECKED

SHEET NUMBER

10 GE 16

DRAWING NUMBER

3123544C0010

REVISION

0

J. COWAN

PROJECT MANAGER Stonninglon CAE Counoil

REFERENCE NUMBER

1008.WOR

09L6ZE

,--

,

1

, yo

„ 1 ,, .,,-

, 0 „ :

1 Nill 1

,_____, _,_ Law neloom

1___ . _ : _i

1 1111111111 •

1 1 1 I

II

77E

a i

nal njw

nt . Ill ii in 3A"°'38 lam

f iiie" 3111A113

. an ,

ST

ON

NIN

GT

ON

CIT

Y C

OU

NC

IL

FL

OO

D P

LA

IN M

AP

PIN

G R

EV

ISIO

N 2

008

YA

RR

A 25

00 / 1

105

-

" " ,,

" "

E ‘,2

! _

, \ ' \ 7----

_ I I lif n t no

„ a .617 i i ...,...

En - , _ „m„

or 1 rime 1 inane

, , Pry t _ a Ng

- ±REPlow_

Isla1 -

- --in Wife

ty._, . IL

IN re, imingro

I '

1 1111M .

litim l'smze

a i

1 r6 , ._

ST

ON

NIN

GT

ON

Cay

Cow

ed,

J.

GO

WA

N

PR

OM

CT

MA

NA

GER

M

onnI

rww

n 00

.6.oun

e

G. J

. E

AT

ON

DR

AW

N

G.C

.H

AY

CH

ECK

ED

en aim ,,,

_a..:_, _ TIN Ilial l aw i .11

a ,. 1,R, ,. ;

Nil ,"Tii -

imr7 prnivil -

4 1111411, i , = j

. un frier is 11111:1111111111:148

1 „,oill

7-

11111111 C

1 I lila I

2 III i IIII

rr: lit : T lAgi lioliiiiiiiiiipittifil

linatiatr"

_ _____ 111111111111:1111111111

- algal Tr

I I, . IL

IS Ainagison ,. alliall U

-6 111:3,ii . 11151

kai

0 jil 1111111111116

11111r

11111 ' _..........

IMIN

T1111111 11

1 ---

-''.

..n.1

11

! a

I

Wir

ffi

llem

ari -

I t30,

3 411

1111

WI,

ro

m.

Ig iim

EII

: g "

la m

ama E

wa

nalle

al m

ar

ini

cim

mi vo

tri m

mum

x am

mie

Rai

vig

i te..

.... 1,.

.... .

.....,

„„,..

R., 1 sior

.. i ga

l In

I

PRIN

CE

S ( D

AN

DE

NO

NG

NG

/

1 I

i

g

0 ci)

0 i . d

. P , !pi

I I 1 i t il

ii

!, : .

firm

‘_

I mai

--] 1

iiiiiiiill

i.1011 . 11

3H1 3f1N3AV aHl

o„ pismioxf, -la - ii 1

II N..11 i

'01 11111 7

E I ...e 11111fti.

I

I --- . iiiiinitill ar

_ AI

a -I: . 1m /IN v

.___-t __________________ I sei awe

Ma almIt

, , .

M 1111

, a a _

2_. - sr

No

rth

SC

AL

E 1

2.5

00 at A

l

ME

TE

RS

25 1

2.5

0

25

50

7

5

100

125

I I-1

I—

I

I

AU

ST

RA

LIA

N M

AP

SA

ID Z

ON

E 5

5 (A

GO

66)

LE

VE

LS

AR

E TV

AU

STR

AL

I A H

EIG

HT

DA

TU

M

meg

irm

i

PI

terd

lig m

ai

re I N

N in

or m

ai 1111 -

IGH

WA

Y

PR

INC

Es

(CA

ND

ENO

111111111;117

'

_______

Q9'

'

SH

EE

T L

AY

OU

T

I

. .

t ,

. .:

t ' 4

, I , 1 1

0, A

1 1 , -

_ Inallite

11#1

r- no I

ii I IN , _ 11 111LN

la 1 ='• I N 11111 - 1: II i iii

II 'fl i''

IN illi ma I tali

a iii 1 massli MINUIEW

W

---I-' ,

gi 7 111- Il RE

P VI ‘.10 -„

1 +4N ‘‘Y I 1k

I . A31YV

--

i

%

. . . , I

i

!\

(al

-

i ii .. 111111 11111111 I

Ern NI Ellis

,

!7---------1

p I ' ' ' 1 " I

„, DoRnH/I

weroN

/ i

I .

. t I.:,1 — .. i r I'

/ i r ! '

i 1 i , , -

AV

' i ' i ' I . 4 ,r " ' : ' , , ,

I _ .

, ¢' , I" 8

I

I " 2 a

,.,

1

II

I

0

i

1 ,

I

GRANDVIEW

/ ' fll i 1 i I I I

I if

I . i . I 1„ L

RD i DORRINGTON i

G !--- „ I

o

t r .,

g i ° II

I I I I /

RD 6 ,

ITV

, I ,ASASI' _re-,

AV 1

, , , ,

.:,-','

z

I

\• \ \ ,

32

9700

gala glimmwm

a Re ,

MN or all

I

IN If - lir il1111

Wed ,,,,

RD

,ii, !,III2. ,....____Agw..,, _____,

iii,„,„ I ......... DA Gs

111111

sift

2 I au

Jrai, MI 14

sT NI 6 15 3

,...___ ,

111, Or ° N.,

11111111

1

ia rs p

aD,

e '

NW

ra

p

!_A

IRV

IEW

- sai

n t

GLE

NL SR

OO

K A

V

m

. - v

1

AO

.:,EY

VIEW

.

.

—

s

I

i i a

I

i FE

RN

CR

OFT

2

...

\,

,

5807000

i

RD

, , ,

,

billessi ' t,- INN

MEim..4111

all 1 NI CENTRAL GARR

6E1067 ___.

2

Rill

IV: o giiiii

. III Illiiiiii

r

I KARDEUA 11

/7

i , , iiiii,issial lie ___,....„.........„,,„„„rion

' EN

1 . , ST

I/II

• ION

ST I6I z

ei .

r-53 i,

miumix IN Rim .. °

,

k

a 2,..iisi

IP MIMI

Um 111111111111.01

1111111114r a:

ow ow . 114,

1.. s

-.,

,.• %

, \ ,

8

,

'4 0

\ x

N

5806750

III

li 11111111111 SEWER°

1 .1

1.11111/11111

, 1101 afili r II 1111 I

...... , r

Mal

MANNING IIII mom

i

; mon

, .... _,.. , it NON

ST

!NM

ill II 1

" II

1

II inildifirili ail

II

lil 1

JINNI

iii al

I 1 plait

1111111111111111AOL illik anninlin.

diailifiiii

riar3u up., „amialogriout . lk Ch tali.

ST BRUNEL II 11111

eo

mi 11'11 Nil

D NM

-"",.. aulmill al Illitai al

sin 11

WIMMIIMMEN1 I 11111Mou

AV ..."<!

ST 67

. le

PSI \ ,

( -

.3, \

__,.. ‘ .

4

-

, 0

ifiNg

—wag" 2 2 , 2 I al

ill I 1111 GRAVE

II

co

ems

ia

0.21 ------- 1111101 :0,MANNING ...

: .07

I

se,.. ..V

irks '

,63 al • § 1 lik

al li I 1 1 111 i

III 9121

ill ill le

I

g 1 I III II

MN

iv

___ - ..... In a I I El I I IN Nilleall

ROTHESAY

11111111111ariii

ST .

summ..,„ all ' ' '

flag °

I L- 11111fissam

11111111 11 Si

I I -, _It

il . I i

2 all .28 au i pi

IN 1 II \ V _ AIL

ellin1...'1111111111 ._ , Av il Mil lir 1 i

w ...0,4,. I

I I 11

omians Hill. avirnii

"1 INIMEIralli alliimini

.. _.......-A. \------ ",,, , .

AV

/

I'ItSZ,

, ,....,, . RD

*

`----

i

NOTES

1. Cm Nrt•IINrolaah, AJoe sortartar an expeclsdlo NA...ft a faxl orennAll a I rs 100 Me Op, IA. Aalnage ayslons slew.. cio nol I* c.NxkiOns mall.° alto!. of Frgaranon. TA A. mayorsurrArethd, or.P,Ar. ,,,,,,,,,,,...... ran. /nsmfoo4 worts elonptiv

2, lz.sprr=to.crta al ranrr rarrocoreocnng cru,npa• or, pormt.................... oLds • ...err Flo.. , r •

3

.

Cp.uopn.

edr,

N. oA

.ra em.ar.p o.s,r lvcy o r

bn6-ed. 1a.

e

-

mgrrtee

—sas m

rrroe.n

Ny*

- A.,-

1r.IrIeu msna—

Inllemcrrazpa ue

.

-<vrq

oeymue

,

rea.l m—

st. go

I—lnm

da uofr-tNem

am-

I-NA*

m

. To ot

sy ,a. IuNc l

C ... .a.

.n 1.N ofM .loa.-f,, -f or

r

re

en

Ctr

N. 0/4......4...II . .

ual 7o.r

S

st*

s

IN

cu

..

t

.

i*r

.

a

.

rx

.AI

.

.

r.o*a!A

dINrm,qArt.sAy

n

T .o W.m........ n

cwrnme ro6:611 or ............................3

Ms r,ort lap.° tom. tms. MUNI.. .nd Mae,. rm. IN =limo, nUiln. N MO Pty LIC PPM rt6941”. MC el tn., C.ty .0 Norarfa OW [plans orgy, a. dp. MC.. Oter Voltoun.• New, B. CatastrA b.*. MeNvIll m.o. slm< llama arid A. Imgara NM suAW WON or Non,. am

Nrs not o,rmey wcae ...nue .66 hm, desns toorr verrourt,ssnow myna. from 666 Norm nos as ram ....Ns ,6

flows aud Worm, NW. bra am ...M.Mlartles.unea0M.y also have M. ff *A to .x.4 ILA...nal/Id. Mo. IN ClivolNoro.on . Its mower. eo noi wArx.1. InCirldul porn& er• m.o...

SCALE

METERS 25 12.5 0 25

North

• 1 : 2500

50

at A1

75 100 125

Ekent or Ia... lo Ilo.nang .1 we poroompobsallty Nod LEGEND ExIort on INA 5018,o tloaCop MIN .1 mrt patAN Nod

a J. EATON

STONNINGTON CITY COUNCIL ElliormL__

CI 6 Eli

Ext. of AMP.. to NerANclunrirn Pe.. *la

2 DRAWN

...... N. IoN.MNI• .I.P.I.0 fro,..NRy NM F.A.INI. to roorirning a hvopornAANIly foal G. CHAT

0 9 13

i

Male.... floodr,Mlni• (Ivo G•rud MAY,. CLIENTS EOP R 10R N AN C E CHCKED


16 NM .4.6,,,ssamrisoro6.,,n6re...66,..6,6.....tors no. no NO' .9.$ pLeo. from or.rd now OLON• *Nob., no.

0.32 Weer erneins. [win, ore Nrtor, AobsAllty footI ..- - mar. rev Iof ames nmeasAlC n 21,A

STONNINGTON Cis Cowed( YARRA 2500 / 1106 AUSTRALIAN IMP GRID ZONE 55 (AGO 6s)


1

--- .41.1........rn G., .3 - -.- r...,,,,rm tor...* W....M..

--- M.P6 ,. for arm rrappd p figs Cons‘Amp In I NO =15

J. GOWAN

PROJECT MANAGER SIONIIINIOn CIN COIMCII

REFERENCE NUMBER

1106.WOR

SHEET NUMBER

12 . 16

DRAWING NUMBER


0 SHEET LAYOUT

328250

=

iioN

noo A1

10

NO

1O

NIN

NO

1S

DARLING

1

0 S 'Z

t 90 9

1,1013

rP,

a

Oi

tol _GtEDELL

I" • \.ol •

go

t /0

09

2 V

bIH

VA

900Z

NO

ISIA

3E1

91\

11dd

VIN

NIV

id 00

0- 1

J

I

WA

VE q----LL'

LEV 2 I

1,

z,

AR

DR

IE

7 raa

\

\

lift

5805750

MOAmA

5505500

Fill

'14 no 111 1

atu i all vow" BUR i

11

-

//

liatigg hil ill

k

/

ell

'

Z 1

illa

s

a1i

n

q

w

igl

"l

laillann

War 1

a. a

ai #

II"

4

i

I

1

' i- L T, -- -

, . 1'

,

N

'—

P

I

a

-

1is1

.'

., 44 we ro_a I li fi laniiiiit I II a 11111iiiiiiiv

a neenu

I 1

L ----- ' -------------------

I own ii won I n- i NI ml Immo isiginwL:-

Or'

-L —

a if ------itr--

- : '

RI - -

Y'

1

i II ii * - ' ---riL IRWIN ' 7 Eo

i 111 PION , , -.EG i 0777 ILI fill I fiL„1,•: uur inotim Nii remaira

3 -1117#1101;14

ir' - 'A,, I 121.

- - - _ :

' :055' I - -)I

Man 2 I a Ltniond111111

u ana

g11

O

e

l*

Nn u

lltt

!isidnist-7

1 swi ft Avg* I 1111111111111 J . iim _

rIIealbSr

I

ralu

-''--

_-

71

11'T!177

e

' If

i

I

I 411

' ai

-

W

- -

r

1- t

:I - --

G

--;.. .. ,i1 iiittsAva--Ausonv,,e 7.' -

"41 gl-sis7,- ilwebm' ,

__ hi , s i If '

I : i / Bin fellanneeinity

IIIIII

: LE.Es ---, a s, mg

A- e ' all '1•T' . - a

1 ma

II 71,LieHaft

lona- Esz-1-1/ iffs

re I a I 11- wispentlik# !_n am-

1 Di I A

ALeEn

_T

'

sift* a a aft Ian

IaI- N '

11 ' :

k Illa NRIONIMM

le 'V

its ail '

.11.14"

-4-1: ' 8

I ari IM 1

--.E1 7 \

'

' 7 '''

"'' : i

1 - --,

e

329750

' 8

SHEET LAYOUT

,

/ 1V------'

1

. t :. I I ,

1 , i 1,..,' larmEL

T''''..,,,.--,-.-7--1, • $,

I .1------fl': "-----! ,

/ , 1

' . 5'7250

i ----,

Sr . -,

ts, 1 , , '

I

RRING DOTON

i----

, I i 1

/

> ri--------I' I .

i

NGTON

1-T---L--/-,r11111

8

1 1 / i

1 . I J i 1 1

I

I ,

,

.

.

CLYDE . T_____GF_RILVDVIE

1 1 I I 1 1

I

I

RD

g

1

E I ..

I I

-_____

/

/I „

' I MN

1 ic-

8

vas

i , 7o6

"

'

,„--

,,.... r-̀------ ,,. !

..

RD

ql

T.

T-.

32

07

50

i i a ,E

II„,„.. ., , ,

, i

111

If!!

. .1

,ii ji

..

1------ :

I

ri

[---

--p

-

rl

IV

t -

-

-_-_

_

--- —

- 1

1

11

II .

DAR

,_ DLD

L

MU

DD

Y

----- 7 1

11 / /el

F - t

or

T OLL

ING

TON

---- EA-

---z

, --1- 2

-1 - .,

.. _

,

_ _

91. E

NBRO

OK

VALL

EY V

IEW

- -

,

-

_ ----

:

--

._

.. -

/ X

FERN

DRO

FT

-

:

F 4-

ss

i

,

..

5807000

-' ...;,-'' 3.

,v------ ,

\ , .,. 3.333. ‘

,

1111111 ,,

MI

IIIIII I

I gi I ii! . OENTEAL PARK

11

¢

,ox i lif Nil

ORA

I 1 r — --

1 KARDELLA

1111

1

11111.1111111

Z ,-. '

Lf.____,,

II

si

a

i I x . _

, in

I

IP , I

.i

,

,

. aim

illIl

,, ,„

3333,, .

i 1 .....

,I,

,

,,,,,,

N i,

,‘

..

\

5806750

I

.

OIL,

I I . .

KERFERD

I

1 1 .,„ „

i I iii! ! , N

N I/,

,‘ 4 Ili

11111/ 'S

' I

-....---""......... .11r

I I

1 BRUNEL ' ' . ' ,

I

ST . PAX-roN ill.

mu

L MIN alllifl'

—norm! [--2] 0 ir IIIMIBIllall

-7-

, ini i----,_ ,

iv

i 1 E3 1 i . I BRUNEL

, ill , I .,, -1 ,., .

II I I ri ... / ii oil 1

u) I lit PAXTON

Lr' _ -LIB 44.1

-.1141111iNmam I

lillnagi waingni DEN

',,-;

1 / al ill

_. 3,,,,, Jr

i I co

7

Ili

AV

a , r

.. ,

I •

f/- d'

,„33

‘PI

, ,

,

\

\

5806500

1 "gill/ 1 III1111111111 1 /

111.Tharialaii411

i MANNINO

,I

- 2 ill

. I GRANT

, i

le f '1 '., -, s .,-.

-- , NING

l

40.07 _ 0.

sTE_t LE

____ $,-

:___

f at , _

gig

- - III

_ ' 1=

M

IIII

p1

inill

immen....

...im

ili

hi

111■2

121 12 im

il=

16-r

ililie _

11

1111

11Ly

1

a

: „ „ . R -

----

-1

_

5 - 1

2 Z ,

_ .

•

Ti

----

---_

___ ---

_-__

___ A

T :

_ I I

l aira

I--;.

rn -

o

---,-...

I nig -

II , 1 1

- i ..

, ,

o , IL

. I '

i 1i 1 -

i

AESA

' I I lial

Av I

.. , ..

DuNDONALD

IIIII Op%

,

' i

'

I

- i Ow

I

Av

- 5,

d' .1

%

\

.„

N 3 HO

NOTES

1. prcen *Wry IWO alots MI armed to mad. dump ovort .11 • I 0. dunce Loirq .4.1.4r sm.. In brry one year Niso Ma. ItIO

co.lions prvarrq the IM el ireprailen.,..ed my occur Irnorta pap, clwing parcon pottlay fro. Ilan twolmsaclOn arelMe ottlw Wm of pmpor.ort Th.o SR2wø5rO000c20.0r0swry tes. a. Wars., meld,' ...and Wasp...MOW sur, Oanr1 cordtions my from Massa,. si tin ol ths BM,. Tv. camt ext. of no., for nx...) Mims un only Oa cistemined aFcen.s. surveyor.

an stern then IM1•1 snow 0. comors. vain arse shorn. can 0.1•01:y fboas ot War nypIltdo.

A. LocallimOrp WOW Or in excess. of dm ePer4s.orm., ocew. rim oUloadop ...nil* to Ia.,: systxn Orly.... not in....Ma:aim* W..

Coo. or F.. (Wags mrsterre, 5. Loral inmates in flood lev*.rnso.naor volootlios show nvy ns.,rornlocalleaws suchms inrneopos..

local ...ors to orarellorn suctes1.1.1.

Floml irtomWen Maw lo 10.01. ...lop nom ...Mpts the. anaprzysim abvin. and..

lanIs of os.rroppla lb.rip Ihotarne Wa/or Mrs. or Coln. or of WM FY. to

fleadrq shroon.. 7...S.Ims.1.11loorigrny mar mtg., 'Hy*. of Ird IA. le nonereshonn 13. Mt Me should. rese in canmetion with tl. yea ...ion., th• rt,•14.11...,o1Stornnplon• Fla. Pleln WPM,

finnslon WOW Pacumon...n.31/235.14.16535.11.1s su.s1 toll* stsunptions antro011erns cort•Inecilnerelit Ilths nport Is. yet to r.asea. 1.1.• itgaunplons mat. canna,. tryntinsrce to GM LW.

Favern.....MttyM. 10.10•• Maar Iv* wen am... al go. Om o,n1Apprq. poredIsawAirftors I, . to loodro aluda. As floor .1.11 two

form, prKor.s. ura...doclpropild. may also Nye II. At a mut Oft Wm... ex Clry of Slonagon and Xs eons.. ea not warrowl...dulimmtin.w. not.. alf•drcl

North LEGEND •

SCALE 1:2.800 0101

METERS 25 12.5 0 25 50 75 100 125 1 E-1



iloadfpanna one prowl potetey food of Int WY. among Cubparwo port. probstay of MI 11.• Mr, clunn,rnro peut no.

xosaw Floor 1st. nellen Itormrn a too po55048051/0

mem Low pus paIll.from Mb. dAing a on pertert lard

MEI U0 00

EMU GEOW 000000 80 000050.550005ROO eurrq OM pPrc•rt prornlooci

,AVP,9.1or sr.+ *17,0 m



YARRA 2500 / 1106

SHEET MABEE

DRAWING HUMBER

12 16

3123544C0012

G. J. EATON

08AwN

G. C. HAY

CHECKED

groNNINGTON cio cmoNil

J. GOWAN

PROJECT MANAGER 550040 005000001

!REFERENCE NUMBER

1106.W OR

REVISION

0



YARRA 2500 / 1107 STONNINGTON Cons,

G. J. EATON

DRAWN

G. C. HAY

CHECKED

J. GOWAN

PROJECT MANAGER Stonninplan City Council

REFERENCE NUMBER

1 107.WOR

SHEET NUMEER

13 0, 16

D.WING NUMBER

3123544C0013

REVISION

0

III alio

- 0,

,

I MN ma .

MIIIIRP---43--4i i

R ,q

------------ -------T'--1--,,

rs' lea i

0,

I A, 32

95

00

R g9

5808500

itt eir .1:: a -ill i L., I AV

a il lila

ft aft I 1 Parril 1 auf - ..v.i ,m inim mm

PLII -7---1 - 4 nii

,,

MN IIII im MI Eft 44

...1111111M1 :2 sauna 11111111

II -

IP

it...111+Aiiii. ,

5808'250

alma min 611111111 elAi

iota

mai ii 5to KENT

ille sr k iftvila. wi ma: an

MI E%:121:7 ..„alind

/WA I 11'

eft 1111111

ile ' .

MN1111.7111

a S r-tZ- E--P ,C

II* 14110 .

g

63

a

1 ir4r • ill Rah. saink 4

plp ,

k ,

;7:17

(ERFERD RD

5808000

„ie, a 1111110t P''

111111 NO

MOM all 11

' 'e

c.,, , „ 1 . 440"

dr . 1 I k \ , •

E N° '

girAv

N

a l ra

n i

1

mu/

LIM

vI it i

lNEN

JE e

e In

n w

a it

t ie"

1 14 s

ae N

aiman

s a

a III NI illil IfiliiinGH

gamviA;E

I illi

-""milligannuile Pala

NI lin

of s iii., 111111k,

II ' lit ok auk ivi-o

1 Ift‘k .11104

ST

Itt ST

,, s

\ 4‘. I1V. it

„o-a

Ibil

cLs4

--

,

/ 5807750

alla rain

g',..4

MIR MN

\ ''-' '

. eft ow , MINI ' 1-------'----Lin MINIMENR, • IOW .m.

14

MMIII

PAYNE LIR

R,,,,, 111 I I

ST WI

II I vow .

, ST

' I

1 a LIR11111111111

I11111111111

H

4'

,*,,,,

II 00' e

9 g

H

16 I Nfil " \

ao

WI- 8 1

11

7

32975

0

MN s .

1

NOTES

dun. at boy Dray..., amp.. Mu. 100 v., Mr.. MIN

lopoga,...raltos prmIlIng If Mrs of pernen. Thai* mar nen Ilan once per,.

2. gpovilate a/ ligicolordrrnelle aro perWailly food tow WNW. rob.. to tom of pr..... -mclude my la asrisl plIclornly fan on. CO:. 180.

ROOT. subs* eolails,omisvv, wbrisken Ey. CA, SlomInglon Cm. dam, con:Wong may ..lrenqhme ol sr,s1s. mIts can

3. Floernr Man Me er. pr... ouvr. Wring as...x. on am prul.w. show Comm, *Ns ernown can ecib [M. of losur

4. Local Mrvol oftr aro.. or in mos of the .oftssbw, a., IN.. pl.., Noma le Iwo rterpeci nut. 011,190.41en's sym Eft. antl.es W.r. Candi or ....ago systnra

5. incaues in flood revals...c..hreor.leass sbym my rasa loam loaDactots web as ant:Mips.. kakl obsbuollonslo OVa.1011o.s.u,orclos.

4*, Mown., for MY bad ovels [ow. .orother stream or craft. ntivbrorrosc..1 Amor

04.4111abwrrs. FM1100•15,65 viaclos Memo, uratreersnlysirrns. otoe.rtappra. Mar.lawroWalwasins., or GoLn.or Me cram. oRnor Ohm or outs...onts. of lam a* to

7. Sna.sh. fbairq nvy arm ousid• Ow caws elm...lot...lg..",

e. misc. .rodela rue wrynclion011ftlalaunOn MeReport rr. P., Mg Ner,s,on2oar (Dow.. wag' a,F2354,6535e)and amonamurrptions are wg,cabo.r. if tn. ,ort is yet to b rm.* assmons. arequame.ons rm. coffin. rsf var. le Mal LW.

baundams, OM* sta reins and O. WO.; two *V Cry of Storompon era

10..Wher• floor levlis won ay.. al [NC. of mk,plog, propetten.11 tloots lo flood. an shad. borlavo6.e•

11. As ens. of ttv Yam, store,rgor.mots cons,...ta m nonnamrt eats...mos aro rd nom strwlee.

• SCALE I: 2.500 at Al

METERS 25 12.5 0 25 50 75 100 125

I I-1 1--I I



EA. of 1.1.•to eloadro duHnp • oft porcomMity !mad

LEGEND

0•Mco noodorang • two Fore. probaillty boa

• ...F....rm., Floor*1.11•1,1.6,0.61,11.,earn10.

lood

MIR ....fn. NM

a. Walar rept in man ftirps one prum predaNlIty kaa

- *Mr. rof,rwas mrny CHO in 21%1B

- M2 5. for arm. My 410 m zoo

--- nint/oranas rrappri try Eps cauang 2001

mama./ “Is m

Fl

1 5809750

,,,,,,

III, II.IIIL j j

III,

< i

• =I . ... „ •

1291 I S. ;

I I-II III I-I-I-LI I . I

'4%6,

..,..........

wi--;----____F__________,.• 7____________ _ ___

5 .5 -

7 _

. --- -• •____ • ,

------__,

--',..-..„,.........,........„,„

'Qfi 41,11,

J:iL •

' — --- J______1.

• •

\ S

\ \

• • \ ‘ • • \\

\\ • • • \\

\\

\\ \

\\,

, , \ \

\

\ • , \

\ \

•

, , - -- ----

I r== s

iliglialli

MIDDLE

:.

, .,-----_—___

,

I

, .•-_._,-- ,--H _____ •ri.,_ :

.-----o /

-J-_, -..., j

;----_-• ,—._., -.._,-, L___., I

I

r I

I

RD

0 g i „..

5804750

I

5804500

....,,,,.....

-,.

---...,

NO)

CAST

19,,,,

,

S

, 1

1 1

--J

24!

l /

-""--------;

:

__ ----' J 1 6

- - - .,--- , ,

e 7=-

DASTLEBAR

VIII a

-,

ill

,

•-r-- .

_

I ,

RD

Ec-

..„, II

5804500

5809250

411.

1. I-

\

,. \ 10 \

\

/ ,

11

11.111111417 MIMI

MS

' imill1111

MI ' Ill

11101111 CAM, iii,ar tir:Do gill! AI 6

1

!Mgt I

Me ta....„,

igingir

Pc

,== I

sT

g

E 5804250

)

i

1

5804000

'

MANCIENoNG GO,

ij

1

,

3317

50

NOTES

SCALE

METERS n 125 0 25

North

4 1 11

1:250atA1

50 75 100 125

1...o.tom,e.,...,....,,,..or,.. LEGEND GI laneM to floodrq arny &nun ,c.m.mPood

0 J. EATON


1. Orepwcortprnowdoressixn*Plotorrnoedengs.aerventrinal,n1OOMolteop G. app.11.11.1.Wr WASS ern,01.1.0ry WM el . oar., syStar. allaWn. arid L.:, .

........... , .F.I..1.0 Yrowl as a 100 'mar ay.., nem•Mal noodrn . groxel a 10.M.Yomna for min-1[01ft. mots MS olle...11Con...pown..P.....,.. ORA I.

6 10 1 .......t. ',..M9 • ..P....1.....1,..

G. O. HAY

FLOOD PLAIN MAPPING REVISION 2008 M.

1111111111 ...p.. p. . f ram owls. lbw co,r, • on* pen. M., noon CHECKED C L T :P ENSPEOPLEERFORMANCE

.O.M..

,p

0

.

,

.

.

.

.

..

.

.,

.

,,. .M.

,,

.

..

.

„..

.s. .

W..m..,..„

C IaC.uma.

=

a.tt...,.

.. s.e

.

.r

ts

:

4u

,:r.,•t

= rmW

V

.

:

.on.

min 0

y

r

a0l

.

f7,....

to

7

r.n b.

a.n*

wo gde.t. sou

f rv.ey

a wn.o.rt

7

..

.

einnoty m.•a t

C ftly. *

t

l*a or

w snn a...qt leuw 9

a ,loop.,,,,,,,,,,,,..„,.,,,,,,.„.:,,.. ,,,,,,„,,,,,„.mr.,,,,,,.,.„,...t .,..,„,.... p.„..,,,,,, B. ....4....... in conm.1.1.....,...sion ol X* Report ...GO a! ...Von - O..,PI•AMappnp .. MN' illacim.r4 N.. z111.44165351.1.,...,110 ...amp.. pernalier. ca.,. Iformn. 8 12 16

Nee M.........1 . from maga lbw europ • co• paw ...my looe MI .0 gess ...Imo ova. Imed.p•an• pan. probadray Moo.

Cl ...... ee, T•tee•• .FIrt,..• F...,..Ge.. ..-......— Mag.. 1,nit for enasm....01. in xo. --- Haoryonitereer an. al.wepeGI.Dere nen

......-..... N...Pnit for vo. mom by Eos congaing in a.

.. ... Nepaprffnilf Dv ams Mb, Egis Com.° 4. Ing

..,.

e...,,...e....rormor ©

STONNINGTON City Gonad/ YARRA 2500 / 1204 I I--I I--I 1

AUSTRALIAN MAP GRID ZONE 55 (AM) 00)

LEVELS ARE TO AUsTRALIAN HEIGHT DATUM

from wed.... oft..., ors...goes or.t.• qua.. otly. aria ea. not a.... Noldwm•Wer. ...pas. lettemrea ars...ruens area dealelHogreta F•r• bon supplisa tertle•City oe Ston,H4on•la v• Tem, orp,.. 1 15

J. GOWAN

PROJECT MANAGER Storming. City Council

RE ERENCE MAURER

1204.WOR

REP” NUMBER

14 ., 16

D. ING NUMBER

3123544C0014

REVISION

0

,,,,,* 10 for.al OblInitli019111..re no. au. as f we...Wt. antlosus. / marry pn,....1.L. .0,,se. may .0 ilevo Smog' by.* nabla to .0,

• of ...v.. IN City of SI.6rgon .. coma.. ea .........mr.......... SHEET LAYOUT

IT

ET

IT

:

5806000

g F, VI

,....„.

§ I

\

e, k el

1

1

..,.'

. ,

, .

---"" --•--".'- ,

, _. •-•"

r .... ........_ -,----,-1 , _ ..-- ., ,

.

, X .. . -----

' 1

1 PIN-- N''._-------

1 ' .ji :0111/11 . '

----_THE --------''-'-'----- I , , ---------___

----_-

V,

. -

0

1 --

,!,-----

.

' _--'-'--

„--

_-----

_-----'-.--.-------- _----

., -___

... ,...S . ,

,-.---

1 - --

.-----.; ....

-- ---

00

SFO?D -- - ---

..0,,,....

-_

NN, . SOUTH EASTERN A

ROAD

ERIAL

\ ' ._------------ \

-----...,

011 . III

— ,--- ,

. _------X:'-rl '

40 --1

_------ — - .-

5,-(eS'0_.- ,

NI

ce.

4

e -- 0 AV

---'-',---- ' .

AV

5 - -

1, we

5805750

A

--

,,

'

rO 4

111. , \ ' \ '‘

AV

Aggli %.,

WO

O

asi

eR

AvE

j "

-t ; Bo

r 4/ , /

SY

CA

MO

RE

s,

BE

SY

CA

m

N as aW

r I 1 i i d

III t WAVERLEY ill .

rt 1111:11111111

• .2, i

ft > oil •

1111111$11111i

, 0

Ili 1111

ss0 id, a 0 ,,,g mil

r .

2.2 . m

m

/9! lam

a

I I

g

111111

il IL„ Ill

E v

ergo a

ma lial

,

IMO

1111111iissa

\ , \ .

/

/ I // /

I1P' .:. ... ... 2

,. ,,, ...,,

../

....., .... ....

2 illS1

g N

.

-,,.. 04.

, fillisi >II

/ ,;„,,,,, 1, ____,..-- „: i. • , \

..„). : ...,...

,

., //

',..,,,,, ' . . ...., ‘. SI „

< tip

/ ,

/ /

/ /\, .

* / '

/

'..., N.. N.

//

Ill ..

7 , 4

cc .:,

.2 .. .... , ,,,.. i

I

, .

I , 5+54

I 1111111111111111

nelliiii a.-- mr....: ri

TAU L 1111111

ST amellarilla ...a 1

a

Wan

o

Ila left .

1111111111

I 1

11111 9 o

11111 INN , Mi_111111

2411111 II

ti IMO

11111 Rua

1111 • Ana .

illin a

t

li

meow

Iii

At sa

11111....11111111 . -mod :

55.

II

ALVIE ST

il

Ile

allik

FENWICK

A ST

w 1

0 ..

1

4.,

M g 4

2

aft ABBOTSFORD

AV ABBOTs

III ill DIP

imoi.-..mi

i 0 x al E'

, 'it III ill

II

I

la II

MIR 1 I I I I I I . I

IOW IMaiss.

i

4. ,

\ Or .....

NN... '

IAV

4

i

11111101 1 11111111111

--- I I 6.2

----

g TP

1

1414,-

',...... %

...,....

'..1 , 8605250

MM." 11 111111111

IIII3 Walla

1.111118 1111111111/1

lid& Ill i MON immallidle

—aliir fill 11 ii,...main

1111 1 lin

TH.. mem. aiii

ST

A

. . Aft

am Iron

1 emi . gari

111111114 .1 Gono

UM —

1111111

Inv

., imumenaST

o x

A

en MIN

in BELLEVUE Allsior.

11111101

OW F. Das NH ^

RANGEVIEW

11111111111111111/111111111

8

5t9 - 11111111 / . .

AV i‘

. N a 1 , . 1 \ . \

\

1111111T1

allairlif

11111111111 In

MIDLOTHIAN III IIIIII

si . . . .

VIRGINIA \ \ \ 1 . . ‘ ‘

114111111111111111 PRIOR ANNNIMISIINEXII

IR 111111111 111? id" 111111111111

ST IIIIIIIII

11111 MI DLOTHIAN

w

111 iii

MI

OR

.

8 .

2

111111...1

\

DOI \ \_ . ----_,- ____._,_

TT --------_,Ar - '

I al III

Ikea

el

..

i 1 i I I i -I

2 l

..,,

.73

1 NOTES

2

'

1

-

. a

W

n

.

la*

Dp

t'tm

o

Avg

pa

lloa

.

i

-

.g

l

AL

*

.

I nr.

f

k*

am

I

s

opw

.r

NA

o

sog

.

f

rioM r

e sN

e.

cx

uN

o

lo

I

-

eA

r r

m

r

ANm

d

luo. Wy

m

n

.

biI

.

t

o

oM.b

t

dn

y

o

Mo

t

o

s fo

a

t

1

c

M

*

M

o

la

1

oaa

o

fn

so

Nw

l

Iy

7

n

ss

,•N*

y

o

o

A

dW

r

n

w

s

a

7

•M

I,in

on

oy

rt

n

-a.

m

.

.

so

b

lI

.

M

a

y

s

t

.

rTl t

n

xa

•

E

=

oh(

o

nA

a

e

M

w

tsC

N

ldbn

sm

oo*

e

M

t

w

a1l .

a

t

a

P

ol-

e

nvw

A

fx gn

-

A

r

i

1

1

.N

u

r

c.

m a

aurn

u

l

f

A

m

•.W

s

.s

s

S

,u

=

g

n

Ps..

m

,

m

.

s1o*WI0s

.

o

s

0mob

.

X

m

.

na

Tw

y*K

.

e

w

.

m

m

*.pm,l

=

5

P

arom

raa

yr

m

.

oalc

a

aa

m.

w

7

apt

1

.m,

r

e

y

,.1

nm

o17

af

A

1 s

- .

tW

•

aA

rwt n

N

r

,o

i o

nn

s

.

.

-

r

m

o

t

ee

tN

o*

rn

•an

.

r

tdi r

N

to l

l.

-

u

A

fm tb

vy 1A

.a .

ao

t o

A

lrh

-

Mrb

c1rc

e

i1l

.

1o,

y so

a

.

t

w

-

tla

or1ya

w

rn

w

r

Ion

.

p

r .

l

ev n

o

o

r

-

P

o

o*

m

E

.1

rc1S.

A

,h

a

A

lCra

sws 1O

-

n

A

,

t

a

ry

-oV

p

l os

In

a

m

d

,

b.

w

drm

a.

1m

orWr M b.

'.=---"="*.:=0*"7,17,;.7-'0"'"'"--"""'''`-- io.Whon Ilo. Wale ton avablab a ...nal wing, poprties vritlIfloors ...tons.° an... As elm.. won

11,1•1•1.01.••83VO. 00 City 01 stownpon .99its cons.... not yearn ....wpm,. an . saw ma.

MWE

i-in

i l.iii M ___ 6

0 METERS 25 5

SCALE

NOM,

I 5

1

a

1

n

,,1t

el Wad* to Sp.,' purIng • pro p•rmy propOrty lb. LEGEND

I

..

l

.

l

.

m

C.O...

P. ...

W

F

.

M

.

Oga

,

.l

.

ar

.

, ry

/

o

g

f

"

.

Ni r

.

.

il

M

.

olo

f

mt

f.

..

ar.

s..

.

.

a.s

.

M

e

.

o

rt

.

r

nwa

9

•

m

I *ne g

to

v

. 'p"

aa r, e lO^

n

ua,

ganl

o•.

gg..

1m.y

,0•

O

x

E

wrPdno.

l E

r

r p

o

oc..

o

w.

p

•

cr.

o

y

rat.

a

m

1pil

m

yp. flro

m

wo.d

n

Ma .

O .

g.

o

,

p

w/rfoo

M*

rn

od

m Itoe

--- hra8!'ngil99feranas090014171.10 6.1103

EATON

G

DR A

J

W

Mope

STONNINGTON CITY COUNCIL a c HAY 0 FLOOD PLAIN MAPPING REVISION 2008

.

5

. S

.r

h.

n

X.

e

ie

.

sl

{t.

a0

.

.

e

v.

.

•

I1

. s

4N

'*

m

n

m*

t•

o

,

o O

d

.

b

,

w

u

,.

0

.

.

m

1

i

m

S

.s

,

h

*

o.,o D

f

w

1

%

1

8

4m

o

t

16

N

o

e0

e

.

.

n

.

l W

.w

rusap

e

1 %

,w

s

1

g

rn

••

t

u

rlw1•

o

•

y

oNM

W

•

w

ry

w

m

•

trn

tl

e

1

o

4

o

.s

o.

1

lr1

e

o

i

.

0

aP

,p

1

l

l

e ,

a

sw

.

•. .N•s

r

3

l

P

i.

1

•

1t

.

*

1

s

D1C.

oo

WA

nf m

NuMm

10.m

d

.

1

^

N

.

6

N

l

mo

•

rra

1Aae

1n

p

0

mVlal.

1 ,,41

.

1• WM55

. d

.

Oa

.r

*

aas.

1 0

.P

P

p

.

Aoo. n

Pm

a

sa

t

a

.

a

wutm

t.

.*

s.u

.

..

.

. .

to.

ri

mu

t

o

,

u,

p

uM

M d.

t

d

s

.

n

i

S

b

a

I

y

l

.

o. r

n

tee

l

.

.y,

m

s

u

G.st.m

a.1

.

r ot• yn.

sN o 0 o

aM .

w

k

1

i

1

r

Md• rPu

1 a1

P

4ry

gen.

n

. p

0La.IoL* l

r

.

l

9 13 a

Pz

z

I

:

M

-.,.-.-.-.--

z. z

.,,,..md........, my, ' ©

8 9 STONNINGTON cCona ry

Ma.. sI,Psrna.....**01.0a..y also tar. now- Wool.. WO". ,

YARRA 2500 / 1205[wNC AUSTRALIANMAPGRIDZONE5(AG66)


SHEET LAYOUT

I11 J. COWAN

PROJECT MANAGER Storming/on ON Council

REFERENCE NUMBER

1205.W OR M199T NUNSER

15 0, 16 DRAWING NUMBER


0

LEGEND

IRMA

CLIENTS PEOPLE:PERFORMANCE

North • SCALE 1 : 2500 at 01

METERS 25 12.5 0 25 50 75 100 125 I I

AUSTRALIAN WP GRID ZONE 55 (AGO 66)

Eatorld1.11.111.foodrrnpi one pormbulaRyna. 575)5') 2GG8Gl06s9 aGy.s

• Floorlml h. to mocrnpmkg • rna preen rrobal, lood ewe Rm.° Pam to saamrs•mo pec,:robabrty rvooe

Floorloverd. boa, eanng•frveporcart peg:MU.

VIM um NW. scow pt.sianon. vv... now rivin, a ore prcertM61, ilooe

horn love cannq a ore proorrnboa


5807250

1

330500

g r, § .... §

Fi

§

33

17

50

5807000 5807000

5806750 5806760

0606580 5806500

F,

NOTES

I. One 99179919.999999 ilooameacts shown 9.99,1.191a mich•Ob.999,90c199.9.• M '69 9.99 9,9979, 64..99 99*, •n,, 999 ,699(9,69191997 as a 100y9ar ars,. mamma geneallood1,99.111•179,99•1990 69,79,99condtions prevaireval 1. Cm of Mina T99 0990 my ocoa mon Mon or. p9r yea,

,9*,197969[1919 lowanpc97.19none pwoolprot9749901779 turettenbeserl supra •1111•9919 of,prollon. 999,99699 99.199.79.9alphotogra. tow on 260.0E- 169e.

ay. law sunny pop. in 1907. and 999999.991.9194 prorx91.9691.991•990,04 CV, of Stonington. 3,3333.33333333.3e.33333.33no..3333.3t3e3m3te.orn.333,34. 1.3.3.3,333e nxd,3,3,3.3 3,31

3,0333,3t3,33 3,3333 3.333 3333 333 333., 3,3,3333,33„33 33 33. 3.3,3,,,,,,333 .33333. p3,33333., Corms. wihn 79, sive 519.99 car 99 99691996,9979 71.169999,911969

LocaMoarceof otr9ar areas, pun e.osso:9,9199•9992.977967 9,999779.799”9.9.,9.."9 .7 mg,: mass of Me C,ty of 5.7791991 systens on9.9.99997.9.9e9.9991.9999.197 Council or 99.6 0.799g. systems,

5, Local ma.•99•991999919.9. ancorvolo9969.999.9 m99999,9.9) (anon .991699,9 91.19,,99, kcal otalnxIkars or.. flow 91.911 4117.3.1.7.. 7099

6. Root, 951,99n9on snow r9.1999.1,,9,9 ol th• ormnne Ira. wry ak9vare9.9,901991.70 9999 799,999999 Wns. 'valor 10.1991.69. 90.9 tar rota.

19,96trum 91 the .99999199ingpmis 9: 9997 119 9999 91990991bourneWat9,9775. Counc9,79.9 erams. 6799r9999 [999-9. Om •

333d 7 5119.9 9.19,4 Oenir OL6/.99 9196913 of law Falt• lo show.

175 dela 999.009m197.9041999999.9191•1•6t 919.9fispon 6919Isa tly Stom.nglon. Moe P.m 9999779 Rerlson 2006,7999m91 4.7939,1735.1659517 9N RC, to We ass9,9799 and 99.211909Ions 999199•9 thenira 119m imp. a 99193,29.25•9799s• ass9,13999 quer6cgons nust confirm6910,fannto 10 MO 9191.191.

Cad99991197991•999.999.99 runinra,s9691nams 997999. local,499 neva ban suppl19a lay., My 915999119,1on and W. 999 9•99 .99•99.7 969999.

I0.7,96,9 999r 9999 9.9 9960,96t. 9,99 9,999.799.179,969 we noon Babl• 4911994599. .996 901709.616 woo unreels. far many199999,7 9.9,99.49999,9•6 rrey alsohave lionr Weis 14.1.9 90.751.

,7 6.6. ...Ir... 9,9t9,79499111,16 consularts no< wan. thy kralv99919,01969,6 .9.9999 679,69.



YARRA 2500 / 1206

SHEET NUMBER DRAWING NUMBER

16 so 16

3123544C0016

G. C. HAY

CHECKED

G. J. EATON

DRAWN

J. GOWAN

4.00.1E01 MANADER StonnIngton ary 055001

STONNINGPDN ray

REFERENCE NUMBER

1206.WOR

REVISION

0

J

Appendix B

Description of Previous Methodology

Extract from the 2003 Flood Mapping Report by GHD Provided for information as it applies to all previous extents

31/23544/165358


4 Technical Methodology

4.1 Introduction

The methodology adopted for the flood plain mapping revision was consistent with the previous mapping undertaken by Egis Consulting Australia as described in the following sections. Each revision item was considered individually to determine how much of the original analysis required updating. Hence the process undertaken to revise various flood plain mapping extents varied from location to location. In general, street reconstructions and drainage improvements typically called for updating at least the hydraulic model and on occasions the hydrologic model prior to remapping.

It should be noted that the following descriptions relate to the entire mapping process. ie, it describes work undertaken in previous mapping projects, only some of which has been revised by GHD during the flood plain mapping project.

4.2 Overview

Design flows were estimated using the RORB hydrologic model. Design flood levels were then calculated using the XP-UDD2000 hydraulic model (formerly EXTRAN). More details are given in the following Chapters.

Recorded flow data were not available for any of the drainage systems under investigation. The RORB models were therefore "calibrated" to the 100 year peak discharge calculated using the rational method. It was generally assumed in the "calibration" process that the pipe systems were capable of accommodating the full 100 year peak discharge.

The calibrated RORB models were then adjusted such that only flows up to the capacity of the pipe system were routed through the pipe system, with the balance being routed overland.

The XP-UDD2000 modelling was undertaken in two stages as follows:

(a) Preliminary UDD models were developed to determine:

the approximate capacities of the pipe system for use in the RORB modelling as outlined above; and

pipe system velocities for calculation of times of concentration to be used in the rational method calculations.

The preliminary UDD models generally incorporated full available details of the piped systems, but only approximate details of overland flow paths.

(b) Final UDD models included full details of overland flow cross sections and levels determined from aerial survey.

Although UDD has fully transient capabilities, it was only used in steady state mode, using the peak flows calculated by RORB.

Peak water surface levels in retarding basins were generally calculated using RORB. In cases where retarding basin outlet capacity is significantly reduced by tailwater effects from downstream drainage systems, stage discharge relationships for use in RORB modelling were estimated using UDD.

Digital terrain models, based on the aerial survey, were developed for all overland flow paths, and used:

to extract flow cross sections for use in the UDD modelling; and

31/23544/165358


Table 5.4 Summary of Rational Method and RORB Parameters and Peak Flows

Catchment Characteristics Rational Method Undiverted RORB Model

Diverted RORB Model

Catchment Reference

Total Area (ha)

% Impervious

Runoff Coefficient

Time of concentration

(minutes)

Rainfall Intensity (mm/hr)

Peak 100 year Flow

(m3/s)

Kc day (km)

Peak 100 year Flow

(m3/s)

lc day (km)

Peak 100 year Flow

(m3/s)

0102 7.46 80% 0.90 10.2 132.1 2.5 0.5 0.2 2.5 0.5 0.2 2.3 0103 0.53 80% 0.90 7.2 155.6 0.2 - - - - - - 0201 38.32 77% 0.87 22.0 88.3 8.2 1.0 0.6 8.2 1.0 0.6 5.0 0203 2.60 83% 0.93 9.3 138.6 0.9 0.3 0.2 0.9 0.2 0.1 0.6 0205 1.50 85% 0.94 10.3 131.5 0.5 0.1 0.1 0.5 0.1 0.1 0.5 0301 31.63 80% 0.90 19.0 95.5 7.5 0.6 0.5 7.5 0.6 0.5 7.5 0401 66.55 79% 0.89 21.4 89.8 14.8 1.7 1.1 14.8 1.7 1.1 13.8 0501 48.71 76% 0.87 15.4 107.2 9.1 * 1.6 0.9 9.1 * 1.6 0.9 8.3*

0503 1.92 75% 0.86 8.7 142.7 0.7 0.2 0.1 0.7 0.2 0.1 0.7 0511 16.46 72% 0.82 11.6 124.5 4.7 0.9 0.4 4.7 0.9 0.4 4.5 0512 46.21 77% 0.87 29.1 74.6 8.4 1.4 1.0 8.4 1.4 1.0 5.6 0514 0.25 85% 0.94 7.5 152.7 0.1 - - - - - - 0517 47.38 74% 0.85 13.1 116.8 11.8 0.9 0.6 11.9 0.9 0.6 9.8 0601 8.37 52% 0.63 8.5 144.0 1.9 0.6 0.1 1.9 0.6 0.1 0.2 0701 56.52 68% 0.79 21.6 89.2 11.0 2.4 1.2 11.0 1.9 0.9 8.2#

0702 37.69 70% 0.81 15.7 106.0 9.0 0.8 0.8 9.0 0.8 0.8 6.0 8.4 w 0703 33.71 67% 0.78 13.9 113.1 8.3 1.5 0.7 8.3 1.9 0.9

0704 12.66 70% 0.81 11.9 122.7 3.5 0.5 0.3 3.5 0.5 0.3 3.4 0705 4.41 71% 0.82 9.5 136.8 1.4 - - - - - - 0706 12.68 74% 0.84 12.7 118.7 3.5 1.4 0.3 3.5 1.4 0.3 1.3 0711 1.95 71% 0.81 8.5 144.4 0.3 - - - - - - 0712 3.23 70% 0.81 8.1 147.6 0.4 - - - - - - 0713 0.95 70% 0.81 7.6 152.1 0.2 - - - - - - 0714 1.17 70% 0.81 7.8 150.0 0.2 - - - - - 0716 3.92 35% 0.41 8.1 147.8 0.5 - - - - - - 0717 1.25 73% 0.83 7.7 150.8 0.4 0.0 0.1 0.4 0.0 0.1 0.2 0801 49.04 71% 0.81 15.0 108.7 12.0 2.4 0.6 12.0 2.4 0.6 5.6 0802 16.67 71% 0.81 11.3 125.6 4.7 0.9 0.4 4.8 0.9 0.4 3.7 0901 1.18 62% 0.73 7.8 150.4 0.4 - - - - - - 0902 1.39 60% 0.72 8.6 143.8 0.4 - - - - - - 0903 2.75 70% 0.72 7.5 152.5 0.2 - - - - - - 0904 0.64 60% 0.72 7.8 150.1 0.2 - - - - - - 0906 0.93 70% 0.72 7.5 153.1 0.3 - - - - - - 1001 46.70 61% 0.72 13.9 113.3 10.6 1.9 0.6 10.6 1.8 0.6 6.8 1002 43.38 61% 0.73 13.6 114.7 10.1 1.7 0.6 10.1 1.6 0.6 8.2 1003 1.73 60% 0.72 7.6 151.8 0.3 - - - - - - 1004 1.14 60% 0.72 8.9 140.9 0.3 - - - - - - 1005 8.16 59% 0.70 9.1 139.8 2.2 0.7 5.8 2.3 0.7 5.8 0.9 1103 11.89 71% 0.82 9.7 135.4 3.7 0.4 0.4 3.7 0.4 0.4 3.7 1201 44.89 62% 0.73 13.5 114.7 10.5 1.3 0.7 10.5 1.3 0.7 10.0


31/23544/165358


Diverted RORB Model

Catchment Reference

Total Area (ha)

% Impervious

Runoff Coefficient


(minutes)


Peak 100 year Flow

(m3/s)

Kc day (km)

Peak 100 year Flow

(m3/s) -

K, day (km)

Peak 100 year Flow

(m3/s)

1202 1.90 60% 0.72 8.3 146.1 0.6 - - - - - -

1205 7.08 64% 0.76 9.7 135.5 1.8 - - - - - -

1301 28.83 62% 0.74 14.7 109.8 6.5 1.2 0.6 6.5 1.2 0.6 6.1

1302 53.15 56% 0.68 15.9 105.2 10.5 1.7 0.8 10.5 1.7 0.8 9.5

1401 60.72 60% 0.72 17.7 99.4 12.0 1.9 0.8 12.1 2.1 0.9 10.0

1402 179.70 61% 0.72 25.2 81.2 29.4 1.9 1.3 29.4 1.8 1.2 11.3

1403 5.80 60% 0.72 9.2 138.9 1.2 - - - - - -

1501 2.53 60% 0.72 8.4 144.9 0.7 - - - - - -

1502 17.30 62% 0.74 9.6 136.4 4.8 0.9 0.3 4.9 0.9 0.3 1.3

1601 25.18 51% 0.64 10.3 131.6 5.9 0.7 0.3 5.9 0.7 0.3 4.6

1701 16.79 41% 0.54 12.1 121.6 3.1 0.7 0.4 3.1 0.7 0.4 2.5

1702 70.10 52% 0.64 24.0 83.8 10.5 1.5 0.6 10.5 1.5 0.6 9.5

1801 51.10 53% 0.66 21.2 90.1 8.4 1.2 0.6 8.4 1.2 0.6 7.5

1901 14.17 52% 0.65 20.0 92.9 2.4 0.5 0.3 2.3 0.4 0.3 2.0

2001 54.65 52% 0.65 30.6 72.4 7.1 2.1 0.6 7.1 2.1 0.7 4.8

2006 44.62 71% 0.80 19.6 93.9 8.4 1.3 0.7 8.4 1.3 0.7 7.8

2101 1.99 46% 0.59 8.7 142.7 0.5 - - - - -

2102 9.63 50% 0.63 10.5 130.8 2.2 - - - - - -

2103 1.54 50% 0.63 7.5 152.6 0.3 - - - - - -

2104 7.91 50% 0.63 10.6 130.1 1.7 0.7 0.2 1.7 0.8 0.3 0.7

2201 8.57 68% 0.79 10.3 131.8 2.5 0.5 0.2 2.5 0.5 0.2 0.6

2202 10.17 39% 0.53 9.7 135.9 2.0 0.6 0.2 2.0 0.6 0.2 1.2

2305 5.90 77% 0.87 11.2 126.6 1.8 - - - - - -

2306 0.23 70% 0.81 7.3 154.8 0.0 - - - - - -

2307 0.50 70% 0.81 7.6 151.7 0.2 - - - - - -

2309 3.19 76% 0.86 10.3 131.6 1.0 - - - - - -

2310 1.49 76% 0.87 9.6 136.4 0.5 - - - - - -

2312 16.95 60% 0.72 11.5 124.9 4.2 1.0 0.4 4.2 1.0 0.4 4.2

2314 7.88 58% 0.69 9.1 139.7 1.9 0.7 0.3 1.9 0.7 0.3 1.9

2315 1.90 60% 0.72 10.4 131.4 0.5 - - - - - -

* Catchment 0501 was calibrated to the intersection of Williams Road and May Road due to overland

flow not crossing the railway line at Williams Road.

# Catchments 0701 and 0703 were calibrated separately but then modelled together since the Kld„

ratio was almost identical for the separate catchments.

31/23544/165358


6 Hydraulic Modelling

6.1 Introduction

The aims of the hydraulic studies were to determine:

peak 100,50 and 20 year flood levels; and

peak 100 year velocities

at all required locations.

6.2 Hydraulic Model XP-UDD2000

All hydraulic modelling was undertaken using XP-UDD2000. UDD is a transient quasi-two-dimensional hydraulic flow model, capable of simulating both piped and open channel systems. Other capabilities and features of particular relevance include:

simulation both subcritical and supercritical flow regimes;

simulation of interchange between surface and subsurface flows through manholes; and

simulation of branched and looped networks, incorporating both convergent and divergent flows, and multiple tailwater conditions.

UDD is a link-node model. Flood levels are calculated at model nodes, which are linked by a series of links with defined hydraulic characteristics. Flows and velocities are calculated within the links.

Typical values of Mannings roughness coefficients used in the modelling are shown in Table 6.1.

Table 6.1 Typical Values of Mannings Roucihness Coefficient Material/Surface Typical Mannings Roughness

Coefficients

Concrete 0.015 Roads with grassed nature strips 0.020

Grassed Floodways 0.03 to 0.04

Typical values adopted for other hydraulic parameters were as follows:

expansion/contraction coefficients (surface flows) - 0.2 to 0.5;

culvert entry loss coefficient - 0.2 to 0.7;

io culvert exit loss coefficient - 0.2 to 1.0;

manhole diameter - 1.2 metres;

manhole inlet loss coefficient ("pipe end") — 0.1; and

manhole exit loss coefficient ("surface end") — 0.1.

It was assumed in all hydraulic modelling that drainage system capacity is unconstrained by inlet capacity, and that drains will not be blocked during flood events. No account was taken of the capacities of any underground drainage systems other than those requiring investigation as part of this study.

Dependant on the particular circumstances, tailwater levels were generally based on an estimate of the downstream water surface level, the downstream ground surface level or:

31/23544/165358


for piped systems - downstream pipe obvert level; and

for overland flow paths - normal flow depth.


31/23544/165358


GHD

180 Lonsdale Street Melbourne, Victoria 3000 T: (03) 8687 8000 F: (03) 8687 8111 E: [email protected],au

GHD 2009

This document is and shall remain the property of GHD. The document may only be used for the purposes for which it was commissioned and in accordance with the Consultancy Agreement for the commission. Unauthorised use of this document in any form whatsoever is prohibited.

Document Status

Rev No. Author

Reviewer Approved for Issue

Name Signature Name Signature Date

0 Greg Eaton Gavin Hay ein .------ Gavin Hayc:;:,...--%-1 4, 15/10/09

e'

31/23544/165358


4 Technical Methodology

4.1 Introduction

The methodology adopted for the flood plain mapping revision was consistent with the previous mapping undertaken by Egis Consulting Australia as described in the following sections. Each revision item was considered individually to determine how much of the original analysis required updating. Hence the process undertaken to revise various flood plain mapping extents varied from location to location. In general, street reconstructions and drainage improvements typically called for updating at least the hydraulic model and on occasions the hydrologic model prior to remapping.

It should be noted that the following descriptions relate to the entire mapping process. ie, it describes work undertaken in previous mapping projects, only some of which has been revised by GHD during the flood plain mapping project.

4.2 Overview

Design flows were estimated using the RORB hydrologic model. Design flood levels were then calculated using the XP-UDD2000 hydraulic model (formerly EXTRAN). More details are given in the following Chapters.

Recorded flow data were not available for any of the drainage systems under investigation. The RORB models were therefore "calibrated" to the 100 year peak discharge calculated using the rational method. It was generally assumed in the "calibration" process that the pipe systems were capable of accommodating the full 100 year peak discharge.

The calibrated RORB models were then adjusted such that only flows up to the capacity of the pipe system were routed through the pipe system, with the balance being routed overland.

The XP-UDD2000 modelling was undertaken in two stages as follows:

(a) Preliminary UDD models were developed to determine:

io the approximate capacities of the pipe system for use in the RORB modelling as outlined above; and

pipe system velocities for calculation of times of concentration to be used in the rational method calculations.

The preliminary UDD models generally incorporated full available details of the piped systems, but only approximate details of overland flow paths.

(b) Final UDD models included full details of overland flow cross sections and levels determined from aerial survey.

Although UDD has fully transient capabilities, it was only used in steady state mode, using the peak flows calculated by RORB.

Peak water surface levels in retarding basins were generally calculated using RORB. In cases where retarding basin outlet capacity is significantly reduced by tailwater effects from downstream drainage systems, stage discharge relationships for use in RORB modelling were estimated using UDD.

Digital terrain models, based on the aerial survey, were developed for all overland flow paths, and used:

II to extract flow cross sections for use in the UDD modelling; and

31/23544/165358


in conjunction with flood levels determined from the UDD modelling, to prepare plans showing the extent of inundation along each drainage system.

Floor levels of all buildings, identified in the original mapping project as likely to be inundated in a 100 year event, were determined using ground survey. The floor levels were surveyed relative to the photogrammetric derived ground surface using conventional levelling and rapid map techniques. These floor levels were compared with the calculated flood levels, to determine which properties would be subject to inundation to above floor level in 20, 50 and 100 year events. No additional floor level survey was requested for the additional 2001 mapping or the current mapping revisions.

The digital terrain models were then used in conjunction with flood levels and velocities determined using UDD to map areas corresponding to defined ranges of depth, and depth * velocity, in the 100 year event to produce hazard or egress risk polygons.


31/23544/165358

5 Hydrology

5.1 Introduction

A series of hydrological investigations were undertaken to determine:

io peak flows resulting from; and

peak water surface levels in retarding basins and other storages for

20, 50 and 100 year average recurrence interval storm events under current zoned landuse conditions.

5.2 Hydrologic Model RORB

5.2.1 Model Overview

RORB (ref.1) is a non linear rainfall runoff and streamflow routing model for calculation of flow hydrographs in drainage and stream networks.

The model requires catchments to be subdivided into subareas, connected by a series of conceptual reach storages. Design storm rainfall is input to the centroid of each subarea. Specified losses are then deducted, and the excess routed through the reach network.

Each reach is assumed to have storage characteristics as follows:

S = 3600kQm

Where S is storage (m3); Q is outflow discharge (m3/s); and k and m are dimensionless parameters.

The coefficient k is the product of two factors:

K = kc.kr

where k, is an empirical coefficient applicable to the entire catchment, and kr is the relative delay time applicable to each reach.

The relative delay time for each reach, kri, is determined as follows:

kri = Fi*(Li/dav)

where Li is the reach length (km), day is the average distance along the reach network from each subareas' centroid to the catchment outlet (km), and

F, is an empirical factor, and a function of reach type as follows:

for natural reaches, F,=1.0, for excavated but unlined reaches, F,=1/(3Sc0.25), for lined or piped reaches, F,=1/(9Sc0.5), and for drowned reaches, F,=0.0,

where Sc is reach slope (%).

The model is also able to simulate:

lakes, retarding basins and similar storages; and

concentrated and distributed inflows and outflows.

31/23544/165358


5.2.2 Model Application and Parameters

In this study, all flows in excess of the capacity of drainage systems subject to investigation were routed overland, and separately to flows contained within the defined drainage system. For the purposes of assigning a reach type, overland flow along roads was generally assumed to be "lined or piped", overland flow predominantly through properties was generally classified as "excavated but unlined".

RORB's initial loss/runoff coefficient model was used throughout the study. Adopted parameters for pervious areas were as follows:

initial loss - 15 mm; and

0 runoff coefficient - 0.6.

The model sets these parameters for impervious areas as follows:

0 initial loss - 0 mm; and

0 runoff coefficient - 0.9.

A value of 0.8 was adopted for the model exponent, m, throughout.

5.3 Rational Method

The rational method is the simplest and most widely used method for calculation of peak discharge from a catchment. The basic equation is as follows:

Q = C.I.A/360

Where: Q is peak flow in cumecs, corresponding to the average recurrence interval under consideration; C is runoff coefficient;

is rainfall intensity in mm/hour, corresponding to te, the time of concentration of the catchment, and the average recurrence interval under consideration; and A is catchment area in hectares.

Time of concentration, tc, was generally calculated using:

actual flow velocities in council drains, calculated using preliminary UDD models.

flow velocities upstream of the modelled drainage system, generally calculated assuming:

— a Colebrook White roughness coefficient of 1.5 mm;

— pipe diameters of 600 mm; and

— pipe friction slope equal to 50 to 100% of ground slope; and

an allowance of seven minutes for runoff to reach the upstream limit of the piped drainage system.

The runoff coefficient was assessed using the method prescribed in Chapter 14 of the 1987 Edition of "Australian Rainfall and Runoff" (ref.2). This relates the runoff coefficient to:

the impervious percentage of the catchment;

design recurrence interval; and

• 10 year 1 hour design rainfall intensity.

Standardised impervious percentages for each major land use were adopted as shown in Table 5.1 and Table 5.2.

31/23544/165358


Table 5.1 Default Fraction Impervious

Equivalent Zoning

Default Fraction

Impervious

Residential Areas depending on location refer Table 5.2 50-80% Schools (Melbourne HS and most private schools) 45% Schools (most public schools) 70% Commercial 85% Industrial 80% Reserves/open spaces 10%

Table 5.2 Residential Fraction Impervious

Drainage Catchment ,

Default Fraction

Impervious

Allenby Avenue 50% Avenel Road 60% Belgrave Road 50% Canberra Road 70% Chadstone Road 50% Clarke Street / York Road 60% Commercial Road 80%

Creswick Street 60% Dandenong Road 75% Darling Road 50% Darling Street 80% Hedgely Dene 50% Lara Street 60% Macgregor Street 50% Moonga Road 60% Prah ran / Essex / Surrey Road 75%

Scotchmans Creek (North and South) 50% Tooronga Road 60% Union Street 80% Williams Road East of Kooyong Road 65% Williams Road West of Kooyong Road 70% Yarra Street North of Toorak Road 70% Yarra Street South of Toorak Road 80% Yarradale Road 60% _

31/23544/165358


Land use was generally based on zonings extracted from the pData planning database provided by Stratagem lnfobase on 28 November 1996. Where necessary, the default values were adjusted to better reflect the land use.

All land use categories included in the database or hard copy planning scheme maps were assigned to one of the major land uses listed in Table 5.1. Some further adjustments were sometimes necessary to correct obvious anomalies associated with this process. For example, golf courses are sometimes assigned a commercial land use. The impervious percentage of a golf course, however, will clearly be significantly less than 85%, and adjustment is therefore required.

5.4 Design Rainfall Intensities

Design rainfall intensities were determined based on the methods prescribed in the 1987 edition of "Australian Rainfall and Runoff' (ref.2), and are presented in Table 5.3.

Table 5.3 Rainfall Intensity (mm/h) for Stonnington

Duration Average Recurrence Interval (Years)

20 50 100 10 mins 92.29 114.80 133.51 15 mins 75.57 93.67 108.67 20 mins 64.82 80.13 92.79 30 mins 51.45 63.34 73.14 45 mins 40.22 49.31 56.76 60 mins 33.53 40.97 47.06 90 mins 25.81 31.40 35.96

2 hrs 21.36 25.90 29.60 3 hrs 16.30 19.68 22.42

4.5 hrs 12.42 14.93 16.96 6 hrs 10.25 12.29 13.92 9 hrs 7.82 9.33 10.54 12 hrs 6.46 7.68 8.66 18 hrs 5.00 5.99 6.77 24 hrs 4.17 5.00 5.67 30 hrs 3.60 4.34 4.93 36 hrs 3.19 3.85 4.39 48 hrs 2.62 3.18 3.63 72 hrs 1.94 2.37 2.72

5.5 RORB Layout and Calibration

RORB catchment models were developed for each of the rational method catchments detailed in the previous section. In the undiverted calibration models, all flows were routed together, and no account was taken of drain capacities.

The models were each calibrated to the results of the 100 year rational method flow at the catchment outlet, by adjusting K. Resultant rational method and RORB model parameters and flows are also summarised in Table 5.4.

31/23544/165358


5.6 Final Catchment Models

The calibrated models were then adjusted to include:

separate routing of flows in excess of drain capacity;

diversions into and/or out of the catchment; and

any retarding basins, lakes or storages. This included any areas where large volumes of runoff would pond during a major storm event, even if this was not a lake or designated retarding basin.

The introduction of diversions into the models will often result in changes to day. Any significant changes to day were compensated for by also adjusting Ka, such that Kjdav was the same as for the calibration (undiverted) model. Final model parameters are also presented in Table 5.4.

Design flows for small catchments typically less than 1 ha in size with no significant storages were estimated using the rational method.

31/23544/165358


Table 5.4 Summary of Rational Method and RORB Parameters and Peak Flows


Diverted RORB Model

Catchment Reference

Total Area (ha)

% Impervious

Runoff Coefficient


(minutes)


Peak 100 year Flow

(m3/s)

Kc day (km)

Peak 100 year Flow

(m3/s)

lc day (km)

Peak 100 year Flow

(m3/s)

0102 7.46 80% 0.90 10.2 132.1 2.5 0.5 0.2 2.5 0.5 0.2 2.3 0103 0.53 80% 0.90 7.2 155.6 0.2 - - - - - - 0201 38.32 77% 0.87 22.0 88.3 8.2 1.0 0.6 8.2 1.0 0.6 5.0 0203 2.60 83% 0.93 9.3 138.6 0.9 0.3 0.2 0.9 0.2 0.1 0.6 0205 1.50 85% 0.94 10.3 131.5 0.5 0.1 0.1 0.5 0.1 0.1 0.5 0301 31.63 80% 0.90 19.0 95.5 7.5 0.6 0.5 7.5 0.6 0.5 7.5 0401 66.55 79% 0.89 21.4 89.8 14.8 1.7 1.1 14.8 1.7 1.1 13.8 0501 48.71 76% 0.87 15.4 107.2 9.1 * 1.6 0.9 9.1 * 1.6 0.9 8.3*

0503 1.92 75% 0.86 8.7 142.7 0.7 0.2 0.1 0.7 0.2 0.1 0.7 0511 16.46 72% 0.82 11.6 124.5 4.7 0.9 0.4 4.7 0.9 0.4 4.5 0512 46.21 77% 0.87 29.1 74.6 8.4 1.4 1.0 8.4 1.4 1.0 5.6 0514 0.25 85% 0.94 7.5 152.7 0.1 - - - - - - 0517 47.38 74% 0.85 13.1 116.8 11.8 0.9 0.6 11.9 0.9 0.6 9.8 0601 8.37 52% 0.63 8.5 144.0 1.9 0.6 0.1 1.9 0.6 0.1 0.2 0701 56.52 68% 0.79 21.6 89.2 11.0 2.4 1.2 11.0 1.9 0.9 8.2 #

0702 37.69 70% 0.81 15.7 106.0 9.0 0.8 0.8 9.0 0.8 0.8 6.0 0703 33.71 67% 0.78 13.9 113.1 8.3 1.5 0.7 8.3 1.9 0.9 8.4#

0704 12.66 70% 0.81 11.9 122.7 3.5 0.5 0.3 3.5 0.5 0.3 3.4 0705 4.41 71% 0.82 9.5 136.8 1.4 - - - - - - 0706 12.68 74% 0.84 12.7 118.7 3.5 1.4 0.3 3.5 1.4 0.3 1.3 0711 1.95 71% 0.81 8.5 144.4 0.3 - - - - - - 0712 3.23 70% 0.81 8.1 147.6 0.4 - - - - - - 0713 0.95 70% 0.81 7.6 152.1 0.2 - - - - - - 0714 1.17 70% 0.81 7.8 150.0 0.2 - -- - - - 0716 3.92 35% 0.41 8.1 147.8 0.5 - -- - - - 0717 1.25 73% 0.83 7.7 150.8 0.4 0.0 0.1 0.4 0.0 0.1 0.2 0801 49.04 71% 0.81 15.0 108.7 12.0 2.4 0.6 12.0 2.4 0.6 5.6 0802 16.67 71% 0.81 11.3 125.6 4.7 0.9 0.4 4.8 0.9 0.4 3.7 0901 1.18 62% 0.73 7.8 150.4 0.4 - -- - - - 0902 1.39 60% 0.72 8.6 143.8 0.4 - -- - - - 0903 2.75 70% 0.72 7.5 152.5 0.2 - -- - - - 0904 0.64 60% 0.72 7.8 150.1 0.2 - -- - - - 0906 0.93 70% 0.72 7.5 153.1 0.3 - -- - - - 1001 46.70 61% 0.72 13.9 113.3 10.6 1.9 0.6 10.6 1.8 0.6 6.8 1002 43.38 61% 0.73 13.6 114.7 10.1 1.7 0.6 10.1 1.6 0.6 8.2 1003 1.73 60% 0.72 7.6 151.8 0.3 - -- - - - 1004 1.14 60% 0.72 8.9 140.9 0.3 - -- - - - 1005 8.16 59% 0.70 9.1 139.8 2.2 0.7 5.8 2.3 0.7 5.8 0.9 1103 11.89 71% 0.82 9.7 135.4 3.7 0.4 0.4 3.7 0.4 0.4 3.7 1201 44.89 62% 0.73 13.5 114.7 10.5 1.3 0.7 10.5 1.3 0.7 10.0


31/23544/165358


Diverted RORB Model

Catchment Reference

Total Area (ha)

% Impervious

Runoff Coefficient


(minutes)


Peak 100 year Flow

(m3/s)

Kc day (km)

Peak 100 year Flow

(m3/s)

Kc day (km)

Peak 100 year Flow

(m3/s)

1202 1.90 60% 0.72 8.3 146.1 0.6 - - - - - -

1205 7.08 64% 0.76 9.7 135.5 1.8 - - - - - -

1301 28.83 62% 0.74 14.7 109.8 6.5 1.2 0.6 6.5 1.2 0.6 6.1

1302 53.15 56% 0.68 15.9 105.2 10.5 1.7 0.8 10.5 1.7 0.8 9.5

1401 60.72 60% 0.72 17.7 99.4 12.0 1.9 0.8 12.1 2.1 0.9 10.0

1402 179.70 61% 0.72 25.2 81.2 29.4 1.9 1.3 29.4 1.8 1.2 11.3

1403 5.80 60% 0.72 9.2 138.9 1.2 - - - - - -

1501 2.53 60% 0.72 8.4 144.9 0.7 - - - - - -

1502 17.30 62% 0.74 9.6 136.4 4.8 0.9 0.3 4.9 0.9 0.3 1.3

1601 25.18 51% 0.64 10.3 131.6 5.9 0.7 0.3 5.9 0.7 0.3 4.6

1701 16.79 41% 0.54 12.1 121.6 3.1 0.7 0.4 3.1 0.7 0.4 2.5

1702 70.10 52% 0.64 24.0 83.8 10.5 1.5 0.6 10.5 1.5 0.6 9.5

1801 51.10 53% 0.66 21.2 90.1 8.4 1.2 0.6 8.4 1.2 0.6 7.5

1901 14.17 52% 0.65 20.0 92.9 2.4 0.5 0.3 2.3 0.4 0.3 2.0

2001 54.65 52% 0.65 30.6 72.4 7.1 2.1 0.6 7.1 2.1 0.7 4.8

2006 44.62 71% 0.80 19.6 93.9 8.4 1.3 0.7 8.4 1.3 0.7 7.8

2101 1.99 46% 0.59 8.7 142.7 0.5 - - - - - -

2102 9.63 50% 0.63 10.5 130.8 2.2 - - - - - -

2103 1.54 50% 0.63 7.5 152.6 0.3 - - - - - -

2104 7.91 50% 0.63 10.6 130.1 1.7 0.7 0.2 1.7 0.8 0.3 0.7

2201 8.57 68% 0.79 10.3 131.8 2.5 0.5 0.2 2.5 0.5 0.2 0.6

2202 10.17 39% 0.53 9.7 135.9 2.0 0.6 0.2 2.0 0.6 0.2 1.2

2305 5.90 77% 0.87 11.2 126.6 1.8 - - - - - -

2306 0.23 70% 0.81 7.3 154.8 0.0 - - - - - -

2307 0.50 70% 0.81 7.6 151.7 0.2 - - - - - -

2309 3.19 76% 0.86 10.3 131.6 1.0 - - - - - -

2310 1.49 76% 0.87 9.6 136.4 0.5 - - - - - -

2312 16.95 60% 0.72 11.5 124.9 4.2 1.0 0.4 4.2 1.0 0.4 4.2

2314 7.88 58% 0.69 9.1 139.7 1.9 0.7 0.3 1.9 0.7 0.3 1.9

2315 1.90 60% 0.72 10.4 131.4 0.5 - - - - -

* Catchment 0501 was calibrated to the intersection of Williams Road and May Road due to overland

flow not crossing the railway line at Williams Road.

# Catchments 0701 and 0703 were calibrated separately but then modelled together since the K0/d„

ratio was almost identical for the separate catchments.

31/23544/165358


6 Hydraulic Modelling

6.1 Introduction

The aims of the hydraulic studies were to determine:

peak 100,50 and 20 year flood levels; and

peak 100 year velocities

at all required locations.

6.2 Hydraulic Model XP-UDD2000

All hydraulic modelling was undertaken using XP-UDD2000. UDD is a transient quasi-two-dimensional hydraulic flow model, capable of simulating both piped and open channel systems. Other capabilities and features of particular relevance include:

simulation both subcritical and supercritical flow regimes;

simulation of interchange between surface and subsurface flows through manholes; and

simulation of branched and looped networks, incorporating both convergent and divergent flows, and multiple tailwater conditions.

UDD is a link-node model. Flood levels are calculated at model nodes, which are linked by a series of links with defined hydraulic characteristics. Flows and velocities are calculated within the links.

Typical values of Mannings roughness coefficients used in the modelling are shown in Table 6.1.

Table 6.1 Typical Values of Mannin s Rou hness Coefficient Material/Surface Typical Mannings Roughness

Coefficients

Concrete 0.015 Roads with grassed nature strips 0.020

Grassed Floodways 0.03 to 0.04

Typical values adopted for other hydraulic parameters were as follows:

expansion/contraction coefficients (surface flows) - 0.2 to 0.5;

culvert entry loss coefficient - 0.2 to 0.7;

culvert exit loss coefficient - 0.2 to 1.0;

• manhole diameter - 1.2 metres;

• manhole inlet loss coefficient (pipe end") — 0.1; and

• manhole exit loss coefficient ("surface end") — 0.1.

It was assumed in all hydraulic modelling that drainage system capacity is unconstrained by inlet capacity, and that drains will not be blocked during flood events. No account was taken of the capacities of any underground drainage systems other than those requiring investigation as part of this study.

Dependant on the particular circumstances, tailwater levels were generally based on an estimate of the downstream water surface level, the downstream ground surface level or:

31/23544/165358


) for piped systems - downstream pipe obvert level; and

for overland flow paths - normal flow depth.


31/23544/165358


GHD

180 Lansdale Street Melbourne, Victoria 3000 T: (03) 8687 8000 F: (03) 8687 8111 E: [email protected]

©GHD 2009

This document is and shall remain the property of GHD. The document may only be used for the purposes for which it was commissioned and in accordance with the Consultancy Agreement for the commission. Unauthorised use of this document in any form whatsoever is prohibited.

Document Status

Rev No. Author

Reviewer Approved for Issue

Name Signature Name Signature Date

0 Greg Eaton Gavin Hay ............./11,) Gavin Hay ....,_. z44.7 15/10/09

31/23544/165358


GHD Flood Mapping Review City of Stonnington 2008

Government & Nonprofit

Transcript of GHD Flood Mapping Review City of Stonnington 2008