CAMDEN COUNCIL NEPEAN RIVER FLOOD STUDY

rp301015-03107nm_wjh150525-Nepean River Flood Study.doc Nepean River Flood Study: Rev 4

REPORT FIGURES

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

1.01

_fg3

0101

5 -03

107n

m14

0218

-Stu

dy A

rea.

doc

Men

angl

e W

eir

Con

fluen

ce w

ith

War

raga

mba

Riv

er

-N

epea

n R

iver

-Tr

ibut

arie

s-

Stu

dy A

rea

(Nep

ean

Riv

er m

odel

)-

Cam

den

LGA

Bou

ndar

y

Ben

ts B

asin

Sta

te

Con

serv

atio

n A

rea

-N

epea

n R

iver

-Tr

ibut

arie

s-

Sub

catc

hmen

t bou

ndar

y-

Plu

viom

eter

stat

ion

loca

tion

-P

luvi

omet

erst

atio

nid

entif

ier

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

3.01

_fg3

0101

5 -03

107n

m14

0114

-Plu

vio

Sta

tions

.doc

abc

Con

fluen

ce w

ith

War

raga

mba

Riv

er

Men

angl

e W

eir

-N

epea

n R

iver

-Tr

ibut

arie

s-

Sub

catc

hmen

t bou

ndar

y-

Stre

amga

ugin

g st

atio

n lo

catio

n-

Stre

am g

augi

ng s

tatio

nid

entif

ier

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

3.02

_fg3

0101

5 -03

107n

m14

0113

-Gau

ging

Sta

tions

.doc

abc

Con

fluen

ce w

ith

War

raga

mba

Riv

er

Men

angl

e W

eir

Con

fluen

ce w

ith

War

raga

mba

Riv

er

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

5.01

_fg3

0101

5 -03

107n

m14

0113

-RO

RB

Sub

catc

hmen

ts.d

oc

Men

angl

e W

eir

-N

epea

n R

iver

-Tr

ibut

arie

s-

Sub

catc

hmen

t bou

ndar

y (N

epea

n R

iver

mod

el)

-S

ubca

tchm

ent i

dent

ifier

Con

fluen

ce w

ith

War

raga

mba

Riv

er

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

5.02

_fg3

0101

5 -03

107n

m14

0113

-Loc

al_X

P-R

AFT

S S

ubca

tchm

ents

.doc

Men

angl

e W

eir

Sub

catc

hmen

ts d

rain

ing

to N

epea

n R

iver

ups

tream

from

Men

angl

e W

eir n

ot s

how

n –

mod

elle

d pr

evio

usly

as

part

of th

e U

pper

Nep

ean

Riv

er F

lood

Stu

dy (1

995)

.S

ubca

tchm

ents

‘US

NA

RE

LLA

N’a

nd‘M

ID N

AR

ELL

AN

’wer

e m

odel

led

sepa

rate

ly a

nd in

mor

e de

tail

as p

art o

f the

Nar

ella

n C

reek

Flo

od S

tudy

(cur

rent

ly u

nder

take

n). T

hesu

bcat

chm

ent o

utlin

es s

how

n re

pres

ent t

he o

vera

ll ar

eas

of th

ese

subc

atch

men

ts o

nly

-N

epea

n R

iver

-Tr

ibut

arie

s-

Ove

rall

exte

nt o

f 2D

grid

-A

ctiv

e bo

unda

ry o

f 2D

grid

-C

amde

n LG

A b

ound

ary

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

6.01

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0101

5 -03

107n

m14

0113

-TU

FLO

W L

ayou

t.doc

Men

angl

e W

eir

Con

fluen

ce w

ith

War

raga

mba

Riv

er

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

6.02

_fg3

0101

5 -03

107n

m14

0211

-TU

FLO

W T

erra

in.d

oc

-N

epea

n R

iver

-Tr

ibut

arie

s-

Stru

ctur

e lo

catio

n

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

6.03

_fg3

0101

5 -03

107n

m14

0211

-TU

FLO

W S

truct

ures

.doc

Men

angl

e W

eir

Con

fluen

ce w

ith

War

raga

mba

Riv

er

-N

epea

n R

iver

-Tr

ibut

arie

s-

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tream

& d

owns

tream

bo

unda

ry li

nes

-U

pstre

am &

dow

nstre

am

boun

dary

iden

tifie

r-

Loca

l inf

low

are

as-

Loca

l inf

low

iden

tifie

r

3010

15-0

3107

–N

epea

n R

iver

Flo

od S

tudy

6.04

_fg3

0101

5 -03

107n

m14

0114

-TU

FLO

W B

ound

arie

s.do

c

abc

abc

3010

15-0

3107

–N

epea

nR

iver

Flo

od S

tudy

(Cam

den

Cou

ncil)

6.05

_fg3

0101

5 -03

107n

m14

0218

-DS

Man

ning

s D

istri

butio

n.do

c

Ob

serve

d lev

el loc

ation

Obse

rved p

eak

stre

am le

vel [m

AHD]

Mode

lled p

eak

stre

am le

vel [m

AHD]

Mo

del n

etwor

k outl

ine

Road

s (n=

0.02)

Gorg

e (n=

0.04)

Wate

rcour

ses (

n=0.0

4)

Heav

ily ve

getat

ed

water

cour

ses (

n=0.0

6)

Urba

n are

as (n

=0.15

)

Tree

s (n=

0.10)

Flood

plain

area

s with

in mo

del

exten

t but

not m

arke

d refl

ect

area

s defi

ned a

s Gr

ass/P

astur

e/Bru

sh (n

=0.06

)

3010

15-0

3107

–N

epea

nR

iver

Flo

od S

tudy

(Cam

den

Cou

ncil)

6.06

_fg3

0101

5 -03

107n

m14

0218

-US

Man

ning

s D

istri

butio

n.do

c

Mo

del n

etwor

k outl

ine

Road

s (n=

0.02)

Gorg

e (n=

0.04)

Wate

rcour

ses (

n=0.0

4)

Heav

ily ve

getat

ed

water

cour

ses (

n=0.0

6)

Urba

n are

as (n

=0.15

)

Tree

s (n=

0.10)

Flood

plain

area

s with

in mo

del

exten

t but

not m

arke

d refl

ect

area

s defi

ned a

s Gr

ass/P

astur

e/Bru

sh (n

=0.06

)

FIG

UR

E 10

.1

PRO

PER

TIES

SU

BJE

CT

TO F

LOO

D D

AM

AG

E D

UR

ING

TH

E 1%

AEP

EVE

NT

[OVE

RVI

EW]

3010

15-0

3107

– N

epea

n R

iver

Flo

od S

tudy

(Cam

den

Cou

ncil)

10

.1_f

g301

015 -

0310

7eh1

5032

6-10

0yr_

Dam

ages

_Ove

rvie

w.d

ocx

NO

TES:

Prop

ertie

s sho

wn in

clude

thos

e sub

ject to

be

low-flo

or an

d ove

r-floo

r inun

datio

n

Inter

face b

etwee

n Nep

ean

Rive

r and

Nar

ellan

Cre

ek

flood

map

ping.

Refer

to th

e Nar

ellan

Cre

ek

Flood

Stud

y for

Nar

ellan

Cr

eek m

appin

g.

LEG

END

:

Up

strea

m ex

tent o

f tribu

tary f

lood

mapp

ing. L

ocal

catch

ment

flood

ing to

be

inves

tigate

d in f

uture

stud

ies.

FIG

UR

E 10

.2

PRO

PER

TIES

SU

BJE

CT

TO F

LOO

D D

AM

AG

E D

UR

ING

TH

E 1%

AEP

EVE

NT

[CA

MD

EN]

3010

15-0

3107

– N

epea

n R

iver

Flo

od S

tudy

(Cam

den

Cou

ncil)

10

.2_f

g301

015 -

0310

7eh1

5032

6-10

0yr_

Dam

ages

_Zoo

med

.doc

x

NO

TES:

Prop

ertie

s sho

wn in

clude

thos

e sub

ject to

be

low-flo

or an

d ove

r-floo

r inun

datio

n

LEG

END

:

Up

strea

m ex

tent o

f tribu

tary f

lood

mapp

ing. L

ocal

catch

ment

flood

ing to

be

inves

tigate

d in f

uture

stud

ies.

Inter

face b

etwee

n Nep

ean

Rive

r and

Nar

ellan

Cre

ek

flood

map

ping.

Refer

to th

e Nar

ellan

Cre

ek

Flood

Stud

y for

Nar

ellan

Cr

eek m

appin

g.