5255NSCResponse

Page 2

Issue 3 Flood Hazard

A Flood Information Certificate is attached within Appendix C. The Certificate provides the
Defined Flood Level of the property at 2.4m AHD. It is also noted that no flood event has
been recorded at the property.

The Plan of Proposed Reconfiguration of the property shows general site levels which
generally range between from 2.4m AHD to 2.1m AHD from the street frontage to the canal at
the rear of the property. Therefore, in a flood event the overland flow path of stormwater will
be from the from the property to the rear of the property.

In the event of a storm event at the Defined Flood Level the impact is minimal with respect to
the depth of the flood level; with a range of 0m at the street frontage to 0.3 at the rear of the
property.

The house that sat upon the existing Lot 174 traversed the property from 2 off the south-
eastern boundary and 2.3 metres off the north-eastern boundary; that is the house stood
across the overland flow path of the property for a distance of 35.9 metres. The proposed
Reconfiguration intends to create 2 Lots with the ultimate construction of a dwelling on each
allotment.

The remains of the existing house and the proposed house will stand about 2 metres from
each side boundary except for the house on Lot 2 will be 3 metres from the north-eastern
boundary; which will create a total of 31.2 metres of house on the properties located across
the overland flow path. That is an improvement 3.7 metres of width to the overland flow path
from the street to the canal.

The property was originally developed in 1977 as 2 Lots as a part of the original Noosa Sound
development. In 1995 the Lots were amalgamated into 1 Lot to permit the construction of an
8-bedroom dwelling across the common boundary. The Lots were originally created above
the 1%AEP flood level current at the time of development.

With respect to the Acceptable Outcomes AO7.1 — AO7.3 of the Reconfiguring a Lot Code of
the Noosa Planning Scheme it is noted that whist it is not possible to achieve flood immunity
of the Lots above 1% AEP flood level without filling; it is possible to create building envelopes
on the allotments that accommodate the proposed use. That is, the houses stand at above
the Defined Flood Level and are located within a building envelope, with the area outside of
the building envelope contained within an Easement for Overland Flow.

With respect to the Overall Outcomes of the Flood Hazard Code of the Noosa Planning
Scheme:
e The development of 2 separate dwellings is a reduction of development within the
mapped Overlay.
The development permits the conveyance of floodwater from the street to the canal.
The development does not increase the number of persons within the hazard area.
The existing natural processes and landforms are maintained by the development.

Issue 4 House Site Area
The aforesaid amended Plan of Proposed Reconfiguration contained in Appendix A shows
the proposed Lots and general site levels; together with an Easement for Drainage,

Easements for Overland Flow Path, proposed driveway to Lot 1 and Building Envelopes.

The Building Envelopes are constrained by a 6m setback from the street frontage, 1.5m from
the rear boundary and the land outside of the Easements.

Page 3

Please note that this submission completes our response to your Information Request.

| thank you for your consideration in this matter.

Lip bm

Max Watterson

Page 4

APPENDIX A

Plan of Proposed Reconfiguration of Lot 174 on RP884826

(Ref: 20-5255AA Rev 1)

Page 5

 

  
 

_] DENOTES BUILDING ENVELOPE MAX WATTERSON
+ASSOCIATES

CONSULTING SURVEYORS

& PLANNERS
12 Maple Street
172 PO Box 639
Cooroy Qid 4563

Ph. (07) 54426121
Fax. (07) 54425125
Email. [email protected]

4

 

 

Gent’ G, DORFMAN

     
 

 

-

¥

x
see
“7 Pqinciana

 

 

House
now demolished

    

 

Project:

PLAN OF PROPOSED
RECONFIGURATION
OF LOT 174 ON
RP884826.

 

643m?

  
 
  

LOCAL GOVT: NOOSA S.C.

LOCALITY: NOOSA HEADS
Existing House

 

 

 

 

 

 

  

 

 

 

Scale: 1:200 Plant of
LINETYPE LEGEND Datum: AHD derived a ae
——S— eee BANK BOTTOM Origin: PM 49981
BANK TOP .
RL 2.206 .
BATTER ont Ref.
CROWN ont. Int:
175 GUTTER 20-5255AA
GRAVEL
N21858 TUNE —
KERB .
4s STORMWATER GRATE CONCRETE, This plan has been prepared for application
@ STORMWATER MANHOLE ELECTRICAL purposes only and may be subject to change.
WATER
© SEWER MANHOLE penioor Dimensions and areas shown hereon are
SEWER i ly and subject to final surve:
[ELECTRICITY JUNCTION BOX DRAINAGE approximate only and subj ' y-
+ TREELINE
(a TELSTRAPIT GARDEN
MMH WATER METER TELSTRA
BUILDING
(HM nyoRant PAVING
D4 STOP VALVE RETAINING WALL
POWER POLE wat
e GUARDRAIL
. won POLE —= = s— FENCE REV 1: 28/02/21 General site levels, Drainage
NCH MARK es now GoNtouR Easement, Easements for Overland Flow Path,
MINOR CONTOUR Building Envelopes and Lot 1 driveway added.

 

 

 

 

 

 

 

 

 

 

Page 6

APPENDIX B

Stormwater Management Plan prepared by Callaghan & Toth

Page 7

PROPOSED DEVELOPMENT AT 19 KEY COURT - NOOSA HEADS

STORMWATER MANAGEMENT PLAN
VERSION 1

FOR

G. DORFMAN
LOT 174 on RP884826
19 KEY COURT, NOOSA HEADS
23/02/2021

   

 

Callaghan & Toth

Civil, Environmental &

\ Hydraulic Engineers
| ABN. 45140292324
\\\\ 1.16/90 Goodchap Street
|||) NOOSAVILLE a 4566

Telephone (07) 54749081
Job No: 2301
www.callaghanandfoth.com.au

Job No, 2103

 

 

 

Page 8

Callaghan & Toth

 

DOCUMENT HISTORY

Document Reference:

Project Manager:
Author:
Reviewer:

Client:

Contact Person:

DISTRIBUTION LIST

No: 2103_SWMP Rev 1.doc

Max Watterson

Lex Toth NnPER3 (ENV) (CIVIL) RPEQ 6069 CPESC

Jane Davissen BE (ENV)

Gershon Dorfman

Max Watterson

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POSITION ON
NAME ORGANIZATION MANAGEMENT TEAM | REVISION REVISION | REVISION
0 1 2
Max Watterson & A
Max Watterson ‘Associates Project Manager 4 1
Environmental / Civil
Lex Toth Callaghan & Toth Engineers 1 1
Noosa Council Assessment Officer 1 1
REVISION LIST
REVISION DATE DISTRIBUTED ISSUED BY CHECKED BY

0 3" February 2021 LT JD
1 23" February 2021 LT JD

 

 

 

 

 

 

The information contained in this report is confidential and proprietary to Callaghan and Toth. It may
only be used by the person to whom it is provided, for the stated purpose for which it is provided, and

must not be imparted to any third person without the prior written approval of Callaghan and Toth.

Callaghan and Toth reserve all legal rights and remedies in relation to infringement of its rights in

respect of its confidential information.
©Callaghan & Toth

2021

 

2103 19 Key Ct SWMP

February 2021

Page 9

ail

Callaghan & Toth
CONTENTS

1. INTRODUCTION oo. ecccccccccesssescssesessscscscsescssssssessessssssssseeneseseassnesesucneasseeeeeeneseneasensueneneaee 5
2. FLOODING MANAGEMENT PLAN.......
2.1 Proposed On-Site Stormwater Easement
2.2 Existing Conditions... eee
2.2.1 Pipe Network ..............
2.2.2 Overland Flow Network ....
2.2.3. Reference Flood Records
2.3. Proposed Improvements............
2.3.1 Proposed Overland Flow Path ..
2.3.2 Compensation Allotment Filling .........
3. CONCLUSIONS & RECOMMENDATIONS.. .
APPENDIX A — - Overland Flow Calculations....0...c.eeessssesssesesesessssessseeeeeseseeseseseeteeseseseeeeaes 8

  
 
 
 
 
  
 

 

2103 19 Key Ct SWMP February 2021

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Callaghan & Toth

LIST OF REFERENCES

1. Institute of Public Works Engineering Australasia, Queensland (IPWEAQ). 2017.
Queensland Urban Drainage Manual (QUDM), 4" Edition 2016.

LIST OF FIGURES

 

Plan No. 2103-01 Site Plan and Index we YD
Plan No. 2103-02 Catchment Plan...... 0... cccceccceeeceesee cesses cece cee cesereeeeceeesenanetenets 10
Plan No. 2103-03 Easement Overland Flow Path Detail......... 0.00.0. ccccsessseseseteesteteserenes 11
Plan No. 2103-04 Easement Longitudinal Section............... ccc cecccccee see seeeeeueeeeenees 12
Plan No. 2103-05 Easement Cross Sections..........00......ccccecccecseeesceeeee eae eteeeeeceeaes 13

4

 

2103 19 Key Ct SWMP February 2021

Page 11

a

Callaghan & Toth |

1. INTRODUCTION

This Management Plan has been prepared to analyse the existing stormwater drainage issues
in Key Court and then to determine if an overload flow path with associated easement can be
created over the existing stormwater outlet which crosses No.19 Key Court.

This investigation and design was requested as part of Noosa Council's Information Request
dated 4 November 2020 Item 2.

2. FLOODING MANAGEMENT PLAN
2.1 Proposed On-Site Stormwater Easement

An existing 0.6m wide x 0.3m high box culvert extends from Key Court to the canal
approximately 1.1m inside 19 Key Court adjacent the eastern boundary.

Council's Information request dated 4° November 2020 Item 2 requires that an easement
location be to be identified for the 1% AEP flows from the relevant catchment.

We have indicted the location of a 3m wide easement on Plan 2103-03 which also shows the
proposed house footprint in relation to the easement.

This easement is designed to take the difference in flows between the 1% AEP pipe flow and
the total 1% AEP for a local storm burst.

2.2 Existing Conditions

The house has been removed from the Lot 2 No. 19 site and a survey has been carried out.

The sag point is the road is in the driveway to No.17 Key Court 6m east of the proposed
easement location.

The road boundary is currently fenced with a continuous block wall across the proposed
easement.

The proposed easement slopes towards the canal. The natural surface has been disturbed by
demolition.

The existing pipe under the proposed easement is 1.65 m to invert at front boundary and 0.67m
to invert at canal wall.

2.2.1 Pipe Network

The existing pipe network starts with sag gullies at the intersection of Key Court and Noosa
Parade and extends through No.19 Key Court to the canal. The network picks up all surface
water from Key Court and adjacent residencies.

 

2103 19 Key Ct SWMP February 2021

Page 12

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Callaghan & Toth

 

2.2.2 Overland Flow Network

The existing 1% AEP overland extents has been determined by survey and site inspection (the
boundaries are shown on Plan 2103-02).

There are currently no formal overland flow paths from Key Court to the canal.

There are two sag points in Key Court, one in front of No. 17 and one in front of No.18.

It is assumed that 1% AEP in excess of pipe flows would currently flow through properties
adjacent sags into the canal.

2.2.3 Reference Flood Records

The defined flood level on council flood certificate is RL 2.4 for 1% AEP 2100 with a minimum
floor level of RL 2.7. This flood level has been used to calculate areas when compensating
filling has been applied to the soil proposed to be used from the overland flow easement
excavation.

This level was not used for the overland flow path as it is above natural ground levels at the
road frontage and so the whole area will be ponded water when this event occurs.

We have instead designed the overland flow path to work with a local 1% AEP flow up until
RL1.55 at the property canal boundary and so a river flood up to the canal boundary level
considered the maximum height to which the overland flow path can be expected to function.

2.3 Proposed Improvements

The proposed improvements consist of shaping a trapezoidal swale 1% AEP overland flow path
along the proposed easement.

2.3.1 Proposed Overland Flow Path

Proposed overland flow path will be created by lowering the natural ground along the proposed
easement by a maximum of 250mm at the front boundary which will taper to Om just past the
new house location- refer to Plans 2103-03 & 04.

This overland flow path is required to be 250mm deep at the road frontage so as to take 1%
AEP flows before the flood waters flow through adjoining properties.

The overland flow path dimensions proposed is calculated to take the excess flow above which
the 300° pipe and the 300mmx600mm box culvert are able to take in a 1% AEP (Refer to
Appendix A).

2.3.2 Compensation Allotment Filling

The volume of earth required for removal for the overland flow path of 12 cubic meters will be
added to the front yard between the new building and the front boundary which will not have
any impact on the flood levels as required in Information Request Item 3.

 

2103 19 Key Ct SWMP February 2021

Page 13

_w

Callaghan & Toth

 

3 CONCLUSIONS & RECOMMENDATIONS

We conclude that a 3m wide drainage easement over the existing stormwater pipe is feasible
for the site. This drainage easement can be shaped to form an overland flow path suitable for
conveying the balance of flow from 1% AEP up to when the river flood takes over the inundation
of the land.

We recommend that Council adopt the proposal to provide a 1% AEP overland flow path and
easement as shown on our plans 2103-01 to 04.

 

2103 19 Key Ct SWMP February 2021

Page 14

ail

Callaghan & Toth

 

APPENDIX A - Overland Flow Calculations

Total runoff from Key Court at 1% AEP:

Area = 14314.3m?
= 1.43ha

Qioo = (CIA)360
Where:
e fi=0.8
e C10=0.86
e fy=1.20
¢ Standard inlet time = 15min (Table 4.6.2) - Iyoo/15 = 211.40mm/h
. _ 1 xX 211.40mm/h x 1.43ha
* Qioo 360.

:. Total AEP 1% = 0.84m?/s

Pipe capacity at 1% AEP (sag at No. 19):
300 DIA outlet invert level 0.7 Approx
Assuming local AEP 1% flood level = canal BDY = RL1.55
Head loss available for total local AEP 1% = Easement channel invert high point - RL1.55
“= 2.2 -1.55
= 0.65m
pipe length = 35m
Approx. pipe velocity = 1.5m/s (conservative)
Approx. inlet loss = 1.5V?/2g
= 0.17m

0.65 — 0.17

Hydraulic grade for pipe = 35m

 

2103 19 Key Ct SWMP February 2021

Page 15

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Callaghan & Toth
= 1% approx.
AEP 1% 300 DIA pipe capacity at 1% hydraulic grade = 0.115m?/s
Pipe capacity at 1% AEP (sag at No. 17):
600 X 300 box culvert outlet invert level 0.7 Approx
Assuming local AEP 1% flood level = canal BDY = RL1.55
Head loss total local AEP 1% = channel invert high point - RL1.55
= 2.2 -1.55
= 0.65m
pipe length = 35m
Approx. pipe velocity = 1.5m/s (conservative)
Approx. inlet loss = 1.5V7/2g
=0.17m

0.65 — 0.17

Hydraulic grade for pipe = 35m
= 1% approx.

AEP 1% 300 DIA pipe capacity at 1% hydraulic grade = 0.3m3/s

AEP 1% capacity required = total runoff— (300 DIA pipe capacity + 600 X 300 capacity)
» 0.84m3/s — 0.115m3/s — 0.3m3/s
~ 0.425m3/s

AEP 1% local overland flow capacity of easement
A
-_ Ro-6 505
@ n

Where:
e n=0.025 for mowed grass

0.43m3/s is achieved by a 3m wide channel that is 0.165m deep with 2m wide base and 1 in
3 turfed batters

 

2103 19 Key Ct SWMP February 2021

Page 16

 

 

 

 

 

   

  

SITE OF
WORKS

   

 

  

Noosa Pde

 

 

 

SITE LOCATION
SCALE: N.T.S

 

 

 

 

 

DANGER !!
HIGH VOLTAGE
UNDERGROUND

ELECTRIC CABLES

nergex

 

CAUTION !!

UNDERGROUND
SEWER/WATER

 

EROSION & SEDIMENT CONTROL LEGEND.

The following Construction Site Conditions and their suggested
method of control should be used in conjunction with the
following documents:

“Erosion and Sediment Control Manual (V1.2) "
“Contract Standards for Erosion and Sediment Control ",
and the Pocket Guide (Nov. 2009)

Urban Erosion and Sediment Control for Waterway Health
Protection, available on SCC web site.

 

 

 

UNDERGROUND
TELSTRA CABLE

 

 

 

Alexander David Toth 6069
NAME RPEQ

LEE 01/21

SIGNED DATE

 

 

 

 

 

 

 

1g P800N

 

 

   

  

 

 

fewtand Dr

k

 

 

 

PLAN INDEX

2103-01
2103-02
2103-03
2103-04
2103-05

IPWEAQ DS—040
IPWEAQ DS-041

SITE PLAN AND DRAWING INDEX
CATCHMENT PLAN

EASEMENT OVERLAND FLOW PATH DETAIL
EASEMENT LONGITUDINAL SECTION
EASEMENT X—SECTIONS

ROAD & DRAINAGE — STANDARD DRAWINGS

SEDIMENT CONTROL DEVICES — SEDIMENT FENCE, ENTRY/EXIT SEDIMENT TRAP
SEDIMENT CONTROL DEVICES — KERB AND FIELD INLETS —CHECK DAMS AND STRAW BALES

 

(Callaghan & Toth )

Civil, Environmental &
Hydraulic Engineers

PO BOX 2305

NOOSAVILLE 4566

1.16/90 Goodchap Street

Phone 54749081

www.callaghanandtoth.com.au

 

designed } MP datum AHD DERIVED

 

drawn dM PSM 49981

 

checked | ADT | Origin (BM.) Ri 2.206

 

 

 

approved

 

SURVEYED BY
MAX WATTERSON + ASSOCIATES

PHONE 54426121
a

(OE
project

PROPOSED LOT
CONFIGURATION
KEY COURT, NOOSA HEADS
ee

ee
Client

G. DORFMAN

Scene

on
title

SITE PLAN & DRAWING INDEX

a
————

LOT 174 on RP884826

Parish of TEWANTIN
County of MARCH

NOOSA SHIRE COUNCIL
Locality of NOOSA HEADS

—————
SCALE

0.10 20 30 40 50 Meters 100
SSS

 

scale SCALE SHOWN IS ORIGINAL DRAWING SCALE
1:2000(A3) 00 NOT SCALE FROM THIS DRAWING
: USE ONLY DIMENSIONS PROVIDED

 

 

REVISIONS

A | SWMP DESIGN
B | ADD CUT & FILL

 

FILES

COMPUTER DIRECTORY
XAJOBS\CT\PROJ IN PROGRESS\2103\ DESIGN

FOR APPROVAL

Sheet 1 of 5 sheets
drawing number

2103-01

date JANUARY 2021 /

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 17

 

 

LEGEND:

>
ub
GL
FL
IL
Tw

CATCHMENT OUTLINE
BOUNDARY

OVERLAND FLOW

LIP LEVEL

GRATE LEVEL

ROAD CROWN LEVEL
PIPE INVERT

TOP OF CANAL WALL

 

 

 

 

 

Alexander David Toth 6069
NAME RPEQ
LEP yn
SIGNED DATE

 

 

 

 

CATCHMENT TABLE

 

CATCHMENT NAME

AREA (m2) | AREA (HA)

 

 

A

13940

 

 

1.394

 

 

 

  

LOT 259
N21858

LOT 260
N21858

|

LOT 261
N21858

LOT 262
N21858

LOT 263
N21858

   

   
 

LOT 264
N21858

 

LOT 265
N21858

 

LOT 266
N21858,

 
    

BUP10192

 

LL2.20

  
 

LOT 283
RP881375

  
 

 
  
  
   
  

sutie7s
LOT 182
N21858
Lor 181
N21858
LL2.19
LOT 180
N21
858 LL2.23 LOT 175
N21858
LOT 176
LOT 179 21858
21858

LOT 177
N21858

  

 
   

LOT 178
N21858

  
 

   
 
 
 
 

SP120409

LOT 258
21858

    
 
  
 

 
   
 
 

cP
BUP8769

   

 
  
 
   
 

  
   

cP.

    
  
 
   
 

LOT 166
N21858

   

 
    
 
 
   
   
 
  

 

LOT 165
pen LL2.22

  
 

GL1.96

GL1.95
Rw 4 s

  
  

LOT 171
RP214930

 

LOT 172
RP214930

  
 
  
  
      
 
 

LOT 167
21858

 
 
   
 

   
 
 
 
 
  
  
  
 
   
 

LOT 170
N21858

  
 
 
 
  

  
 
  
  
 
 
 
    
 

LOT 168
N21858

 

LOT 169
N21858

( Callaghan & Toth )

_ | Civil, Environmental &
Hydraulic Engineers

PO BOX 2305

\ NOOSAVILLE 4566

\ 1.16/90 Goodchap Street

Phone 54749081

www.callaghanandtoth.com.qu

 

designed [MP | datum AHD DERIVED

 

drawn JM SM 49981

 

 

Ps
checked J ADT | Origin (B.M.) RL 2.206

 

approved

 

 

SURVEYED BY
MAX WATTERSON + ASSOCIATES
PHONE 54426121

SN
project

PROPOSED LOT
CONFIGURATION
KEY COURT, NOOSA HEADS

i

(ne commana ts ny
Client

G. DORFMAN

Ne

eo or
title

CATCHMENT PLAN

Nd
a————

LOT 174 on RP884826

Parish of TEWANTIN
County of MARCH

NOOSA SHIRE COUNCIL
Locality of NOOSA HEADS

Nc

(ocr eran my
SCALE

 

5 0 5 10 15 20 25m
1:500
SCALE BEFORE REDUCTION (A3)

SCALE SHOWN IS ORIGINAL DRAWING SCALE DO NOT SCALE

 

 

 

THIS DRAWING USE ONLY DIMENSIONS PROVIDED.

REVISIONS

A |_SWMP DESIGN
B| ADD CUT & FILL

 

FILES

COMPUTER DIRECTORY
X:\JOBS\CT\PROJ IN PROGRESS\2103\DESIGN

FOR APPROVAL

Sheet 2 of 5 sheets
drawing number

2103-02

date JANUARY 2021 S/S)

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 18

 

 

 

LEGEND — EXISTING SERVICES
BOUNDARY
MAJOR CONTOUR

LOT 165 (
\ \ Naess Callaghan & Toth
: _ \ Civil, Environmental &

Hydraulic Engineers

 

 

 

 

 

 
    
 

 

  
  
    

 

 

MINOR CONTOUR (6 Bot SHS
TOP OF BANK . NOOSAVILLE 4566
BENS \ 1.16/90 Goodchap Street
CONCRETE EDGE Phone 54749081
BUILDING www.callaghanandtoth.com.au
— — — — — EASEMENT designed [MP] datum AHD DERIVED
drawn JM
KERB AND CHANN .. PSM 49981
EL Lo25 i GL1.95 checked J ADT | Origin (BM.) RL 2.206
OVERHEAD POWER § 4
I TELSTRA ‘| [IN 4 BATTER opproved
ve
s——s——s—o- SEWER & MANHOLE SURVEYED BY

  
 

MAX WATTERSON + ASSOCIATES
PHONE 54426121

 

 

 

WATER N D GL2.01

    
 

 

 

 

 

 

 

 

 

 

 

 

 

—s——sw—— STORMWATER LOT 283
———£———_ UNDERGROUND ELECTRICITY RP881375 No. 17 _
‘* POWER POLE LOT 172 project
a WATER METER 1IN 3 BATTER RP214930 PROPOSED LOT
FIRE. HYDRANT CONFIGURATION
STORMWATER PIT we 9 Daum RENOVED FROM FLOOD KEY COURT, NOOSA HEADS}
; G PLAIN TO FORM OVERLAND
Co 5 EXISTING TREE Te A UNEWaY Root FLOW PATH ————
Fe EXISTING LIGHT POLE RAISED TO MATCH NEW FLOOR Client
B EXISTING UG ELECTRIC JUNCTION . ___ LEVEL |
rma ammtna | ae o_o
LEGEND: PROPOSED SERVICES SstonAE Encin LEVEL d i
—_————_ new SWALE : % 2 (Ce
4 Y le
GER oip choss seevions wrk 6 C 2 EASEMENT OVERLAND FLOW
st 2AwS2.20 PATH DETAIL
7S —$#+_lFT

IS2.25

 

LOT 174 on RP884826

Parish of TEWANTIN
County of MARCH

NOOSA SHIRE COUNCIL
Locality of NOOSA HEADS
Ko DS

ny
SCALE

a ~ y. 2, 7 FS2.30
BM: Screw in Kerb bo aie ee \w82'30
‘ia RL 213 ng re , “, 3
¢ 112.18 aa Q ‘
~ oO of FS2.30 -* \
° a a NS2.30.™
- oo LOT 1

S ) \ PROPOSED BUILDING
FOOTPRINT FL2.7

   

GL1.97 S

 

 

19 | ” Y 7 25 0 25 5.0 75 10 125m

VAS No. - é yg J ee 1250
Z / “ ” if ‘SCALE BEFORE REDUCTION (A3)

LOT, 174
SCALE SHOWN IS ORIGINAL DRAWING SCALE D0 NOT SCALE

RP884826 pf THIS DRAWING USE ONLY DIMENSIGNS PROVIDED.
House - . K 7

GL1.93 partly demolished po
i J REVISIONS

 

 

A |_SWMP
SWALE CENTRELINE B| ADD CUT & FILL

* . /
S » FILES

LOT 175 ee COMPUTER DIRECTORY
X:\JOBS\CT\PROJ IN PROGRESS\2103\ DESIGN

N21858 a
FOR APPROVAL

\ Sheet 3 of 5 sheets

drawing number

\ 2103- 03
XK date JANUARY 2021 S/S

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 19

 

 

     
 

( Callaghan & Toth )

| Civil, Environmental &

Hydraulic Engineers
PO BOX 2305
My NOOSAVILLE 4566
Li, 1.16/90 Goodchap Street

Phone 54749081
www.callaghanandtoth.com.au

 

designed | MP | datum AHD DERIVED

 

drawn_| JM PSM 49981

 

 

checked | ADT | Origin (B.M.)_ RL 2.206

 

approved

 

 

 

 

 

 

 

 

 

 

 

_
a
3 1 PROPOSED SWALE IL
>
a 6
ae eS a Ue rel 2
rs rs a
600 X 300 RCBC
DATUM RL -2.000
SWALE INVERT LEVEL “ ~ S si a = ae =
NATURAL SURFACE LEVEL “ys “ N q “i N am 3 S
CHAINAGE ~ = =
KEY COURT EASEMENT LONGITUDINAL SECTION
1 0 1 2 3 +4 Sm
HORI SCALE 1:200 (A3) Sees 1
1 0 1 2°3 4&4 Sm
VERT SCALE 1:200 (A3) Srarernbucn Gal

 

SURVEYED BY
MAX WATTERSON + ASSOCIATES
PHONE 54426121

(a
project

PROPOSED LOT
CONFIGURATION

KEY COURT, NOOSA HEADS;

Nn

_ ee
Client

G. DORFMAN

a

ner,
title

EASEMENT LONGITUDINAL

SECTION
tei

_——————————————————————

LOT 174 on RP884826

Parish of TEWANTIN
County of MARCH

NOOSA SHIRE COUNCIL
Locality of NOOSA HEADS

———————————
SCALE

 

1 0 1 °=2 =3 = 4&4 Sm

ees 1200
SCALE BEFORE REDUCTION (A3)

 

 

SCALE SHOWN IS ORIGINAL DRAWING SCALE DG NOT SCALE

‘THIS DRAWING USE ONLY DIMENSIONS PROVIDED.

REVISIONS

details
A | SWMP DESIGN
B | ADD CUT & FILL

 

FILES

 

COMPUTER DIRECTORY

 

X\JOBS\CT\PROJ_IN- PROGRESS\2103\ DESIGN

 

 

FOR APPROVAL

Sheet 4 of 5 sheets
drawing number

2103-04

 

 

 

 

 

 

date JANUARY 2021 S/S

 

 

 

Page 20

 

 

| EASEMENT

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Datum 1

 

 

CH15.000

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Centreline R.L.2.169

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HORI SCALE 1:50 (A3)
VERT SCALE 1:50 (A3)

( Callaghan & Toth )

\ Civil, Environmental &
Hydraulic Engineers

PO BOX 2305

NOOSAVILLE 4566

1.16/90 Goodchap Street

Phone 54749081

www.callaghanandtoth.com.au

 

designed | MP | datum AHD DERIVED

 

drown __ uM PSM_ 49981

 

 

checked J ADT | Origin (BM.) RL 2.206

 

approved

 

 

SURVEYED BY
MAX WATTERSON + ASSOCIATES
PHONE 54426121

LL
project

PROPOSED LOT
CONFIGURATION
KEY COURT, NOOSA HEADS

NC
_————————————————ai.

Client

G. DORFMAN

a
ee

title

EASEMENT CROSS SECTIONS

ee
ck

LOT 174 on RP884826

Parish of TEWANTIN
County of MARCH

NOOSA SHIRE COUNCIL
Locality of NOOSA HEADS

_
KL

SCALE

 

05 0 =05 10 15 2.0 25m
eee 150
‘SCALE BEFORE REDUCTION (43)

SCALE SHOWN IS ORIGINAL DRAWING SCALE DG NOT SCALE

 

 

 

THIS DRAWING USE ONLY DIMENSIONS PROVIDED.

REVISIONS

revision
A | SWMP DESIGN
B | ADD CUT & FILL

   

FILES

 

COMPUTER DIRECTORY
XA\JOBS\CT\PROJ IN PROGRESS\2103\ DESIGN

FOR APPROVAL

Sheet 5 of 5 sheets

 

 

 

 

 

drawing number

2103-05

date JANUARY 2021 yy,

 

 

 

 

 

 

Page 21

APPENDIX C

Flood Information Certificate issued by Noosa Council

Page 22

Nogsa Council documents

am
eg, NOOSA COUNCIL EaaaiREADY

 

are you? www.floodready.gov.au

Flood Information Certificate

This certificate is issued in response to an information request for a property which is located within the
geographical boundaries of Noosa Council.

Applicants Name Max Watterson & Issue Date 06 November 2020
Associates
Applicants Address PO Box 639 Property Number 134223
COOROY QLD 4563 Property Description Lot 174 RP 884826
Address 19 Key Ct Noosa Heads Qid
4567
Our Reference Cer20/3580
Email Address [email protected] Issuing Officer Monkeith Kadhum
Your Reference 20/5255

This certificate is issued in response to an enquiry for the above property:

 

 

 

 

 

REGISTERED OWNERYS NAME: Gershon Dorfman
DEFINED FLOOD LEVEL: 2.4m AHD
DEFINED FLOOD EVENT: 1% AEP Under 2100 Climate Change Conditions
SOURCE OF INFORMATION: Noosa River Flood Study 2016, WMA Water
ee HISTORICAL FLOOD A flood level has not been recorded for this property

 

LOCATION DESCRIPTION OF
RECORDED HISTORICAL EVENT:

DATE OF HISTORICAL EVENT: A flood level has not been recorded for this property
FREEBOARD: 0.3m

APPLICABLE MINIMUM FLOOR
LEVEL FOR HABITABLE ROOM /
AREA:

A flood level has not been recorded for this property

 

 

 

*2 7m AHD (as required by The Noosa Plan)

 

 

 

 

THIS CERTIFICATE IS VALID FOR 6 MONTHS FROM DATE OF ISSUE.

 

*,
Velocity note:

The subject property is located in an active water flow area and the velocity of the water is up to approximately
0.6m/s for the 1% AEP Defined Flood Event.

www.noosa.qid.gov.au [email protected] T 07 5329 6500
PO Box 141 Tewantin Qid 4565 ABN 97 969 214 121
Flood Information Certificate (FSCV3-0809) Page 1 of 3

Document Set ID: 21287146
Version: 2, Version Date: 06/11/2020 Print Date: 6 November 2020, 4:02 PM

Page 23

Nogsa Council documents

ae
ege, NOOSA COUNCIL fimmaiREADY

are you? www.floodready.gov.au

 

CLIMATE CHANGE

The advice provided in this certificate is based upon information relating to historically recorded flood events and
future climate condition. The defined flood event incorporates an allowance for climate change for the 1% AEP at
year 2100. Climate change projections include increased rainfall intensity, higher mean sea level and more
extreme weather conditions (e.g. storm surge and tropical cyclones).

NOTES FOR FLOOD INFORMATION

1. The absence of Highest Historical Flood Level information does not imply that the above property is not
subject to flooding, simply that Council has no record of this property flooding. Applicants are encouraged to
make their own local enquiries.

2. In accordance the self-assessable (detached) house code, the MINIMUM FLOOR LEVEL is calculated as
whichever is greater of either:

(a) | 300mm freeboard added to the Defined Flood Level for the site; or
(b) 500 mm freeboard added to the Highest Historical Flood Level appropriate to the site; or

(c) If the property is intended for use as a Hospital, Aged Residential Care Facility or Emergency
Services Facility then the Council should be contacted to determine this level.

3. Council advises that if stormwater drainage pipelines/easements exist on the property then no earthworks or
building are permitted in the easement.

4. All buildings shall conform to the relevant Planning Scheme Code in The Noosa Plan.

5. Please be aware of the natural topography in your area. Water runoff which exceeds the capacity of the
underground drainage system (if present) and which concentrates in surface depressions and gullies as it
flows down a catchment can cause localised flooding and is not identified in this certificate.

6. Filling must not cause actionable nuisance in accordance with Queensland Urban Drainage Manual.

7. Council advises that if there are openings to basements these openings require a minimum level at least
equal to the minimum floor level.

8. Please be aware that the reported flood information may vary in the future as new data becomes available.

9. Flood Hazard Maps within Council's planning scheme are indicative only and should not be relied upon as a guide to
potential flooding.

www.noosa.qid.gov.au [email protected] T 07 5329 6500
PO Box 141 Tewantin Qld 4565 ABN 97 969 214 121
Flood Information Certificate (FSCV3-0809) Page 2 of 3

Document Set ID: 21287146
Version: 2, Version Date: 06/11/2020 Print Date: 6 November 2020, 4:02 PM

Page 24

Noosa Council documents

alte!
eg, NOOSA COUNCIL finaaiREADY

are you? www.floodready.gov.au
DISCLAIMERS
Flood information provided by Council should only be used as a guide to the extent of flooding on the property. This

information may be inaccurate or incomplete and it is recommended that purchasers make their own local enquiries with
regard to the flooding and drainage history of the site. NO LIABILITY IS ACCEPTED FOR THIS INFORMATION.

The property information supplied does not represent the highest probable flood level that could occur on this property. A flood
more severe than the level described above may occur, although such events would be extraordinary.

The absence of flood information does not imply that the above property is not subject to flooding, simply that Council has no
flood information for this property flooding.

If there is a history of flooding or drainage issues, we recommend you seek professional advice on this matter.
COUNCIL ACCEPTS NO RESPONSIBILITY FOR THE ACCURACY OF THIS INFORMATION
GLOSSARY OF TERMS

 

 

 

 

Term Definition
The Australian Height Datum (AHD) is the reference level for defining reduced levels
AHD adopted by the National Mapping Council of Australia. The level of 0.0 m AHD is
approximately mean sea level.
Defined Flood Level A water level derived through mathematical modelling of the Defined Flood Event.
Terminology consistent with State Planning Policy (SPP, 2003) which states “Defined Flood
Defined Flood Event Event is the flood event adopted by a local government for the management of development

in a particular locality”.

The Annual Exceedance Probability is the likelihood of occurrence of a flood or storm tide
inundation event of a given size or larger in any one year, usually expressed as a
percentage. For example, if an event has an AEP of 1%, it means that there is a 1% risk
1% AEP (i.e. probability of 0.01 or a likelihood of 1 in 100) of this event occurring in any one year. A
1% AEP event should not be interpreted as only occurring once in 100 years.

This flood event is also commonly called the 100 year ARI (Average Recurrence Interval) or
Q100.

Is a reference to the document summarising the results of the anticipated flooding relevant
to this location.

 

 

Source of Information

 

Highest Historical Flood
Level

Location Description of
Recorded Historical Event

The highest flood water level from all historic events for which Council has records.

 

A description of the site where the Highest Historical Flood Level was recorded.

 

 

Date of Historical Event The date on which the Highest Historical Flood Level occurred.
The minimum floor level calculated in accordance with the Town Plan through the addition
Minimum Floor Level of the relevant freeboard to the Defined Flood Level and the Highest Historical Flood Level.

Council requires that the higher of these two levels be used as the minimum floor level.

A factor of safety usually expressed as a height above the adopted Defined Flood Level. A
Freeboard freeboard tends to compensate for factors such as wave action and historical and modelling
uncertainties.

In a residential situation: a living or working area, such as a lounge room, dining room,
rumpus room, kitchen, bedroom or workroom.

Where a ‘regulation line’ has been set by Council to define the limit to which development
may encroach onto a floodplain, development is undertaken outside such ‘regulation line’.

Rainfall Intensity The amount of rainfall occurring in a unit of time, usually expressed in millimetres/hour.

A tidal datum; the arithmetic mean of hourly heights of the sea at the tidal station observed
over a period of time (preferably 19 years). Source: BOM This is approximately 0.0 m AHD

 

 

Habitable Room/Area

 

Flood Regulation Line

 

 

Mean Sea Level

 

The elevation of water generated by a tropical cyclone above or below the normal
astronomical tide.

A tropical cyclone is a low-pressure system which develops in the tropics and is sufficiently
Tropical Cyclones intense to produce sustained winds of at least 63 km/h or greater and gusts in excess of 90
km/h near the centre.

Storm Surge

 

 

 

 

 

www.noosa.qid.gov.au [email protected] T 07 5329 6500
PO Box 141 Tewantin Qld 4565 ABN 97 969 214 121
Flood Information Certificate (FSCv3-0809) Page 3 of 3

Document Set ID: 21287146
Version: 2, Version Date: 06/11/2020 Print Date: 6 November 2020, 4:02 PM