DrainageAssetManagementPlan2017‐2026InverellShireCouncil
2 | Drain
DocumTitle:
Docume
Date
24/08/20
22/10/20
30/03/20
This asseFor furth 144 OthPO Box 1Inverell DX 6159 Tel: (02)Fax: (02 Email: coInternet DISCLAIM While evInverell or not d
nage Asset M
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ent Number:
Revisio
015 Draft V
015 Draft V
016 Version
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2026
Date
16
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on, ne
ConIntro
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Plan
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ntentsoduction ......
sset Manage
sing this Pla
derstanding o
sset Invento
sset Register
ondition Pro
Current Con
Projected C
ing Standard
tatutory Req
evels of Serv
esired Levels
nning for the
opulation ....
roperty Deve
rban Salinity
limate Chang
erating & Ma
nspections ....
Level 1 – Ro
Level 2 – Co
Level 3 – De
outine Main
Gross Pollu
eactive Main
ewing and E
enewal ........
Projected R
Budgeted R
xpansion......
onalising the
naging the Ri
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nformation In
nformation O
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Monitoring an
mprovement
erences ........
endix A .......
endix B ........
Inverell
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ement Driver
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our Assets ...
ory ................
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ofile ..............
ndition ........
Condition .....
ds & Measur
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s of Service .
Future .......
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elopment ....
y & Water Ta
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intaining the
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etailed Engin
tenance ......
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ntenance .....
xpanding the
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e Network an
isks ..............
ent Practice
tabase .........
Information
nputs ...........
Outputs ........
ent & Monito
nd Review ...
t Plan ...........
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‐2026 | 3
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4 | Drain
FigureFigure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
TableTable 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
Table 16
nage Asset M
es : Inverell Sto
: Pipe and N
: 2015 Asset
4 : 2026 Proje
: Causes of
: Central Slo
: Projected
: LTFP Fund
es: Strategic Pl
: Drainage N
: Drainage A
: Condition R
: Useful lives
: Community
: Technical P
: Population
: Population
0 : Available
1 : Failure Mo
2 : Failure Mo
3 : Failure Mo
4 : Failure Mo
5 : Critical Ris
6 : Improvem
Management
ormwater Ca
Node numbe
t Condition P
ected Condit
urban salinit
opes Rainfall
Required Re
ing Provided
lan Strategie
ode invento
ssets Invento
Rating Gener
s of drainage
y Performan
Performance
Projections
Change (NS
Maintenanc
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ode ‐ Structu
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ode ‐ Capaci
sks ...............
ment Plan .....
t Plan 2017‐2
atchments ...
ring system .
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ion Profile ...
ty (Slinger &
and Temper
enewal Fundi
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es ..................
ry ................
ory ...............
ral Descriptio
e assets ........
ce Measures
Measures ...
(NSW Depar
W Departme
e Funding ....
of Service ......
ural Integrity
mance/Relia
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2026 I
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‐2026 | 7
ns
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strategy plan age (See 1.1)
o include inancial e age
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develop nd agree chieve
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8 | Drain
UnderUnderst
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Figure 1 :
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ture for its
m based on t
r drainage s
to catchm
sed on the fl
erell there ar
ontaining up
tchments co
ding kerb an
und draina
s to one gen
1.
e probability
failure for
des a framew
sset data in
enting an a
classificat
s developed
drainage a
their locatio
system has
ents and
low paths o
re ten catchm
p to nine
ontain all su
nd channel),
age and
neral directio
and
risk
work
n an
asset
tions.
d an
ssets
n.
been
sub
f the
ment
sub
rface
, pits
each
on as
Figur
Catc
sub
a su
resu
expr
catc
catc
upo
nod
and
inlet
pits
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sequ
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gutt
cons
acco
ease
The
mak
Tabl
re 2 : Pipe and
chments are
catchments
ub catchmen
ulting in eac
ressed as
chment and
chment. Pipe
n their up
es. Each pip
downstream
t pits, headw
or outlets.
face water
uential asset
y by a gen
tion within
ter assets
struction m
ording to th
e of managem
size, numb
ke up the dra
le 2 and Tab
H2.53
Catchme
Inverell
Node numberi
e identified
by a numbe
nt are each
ch node hav
its catchm
number w
es are then n
pstream an
pe must hav
m node; the
walls, juncti
channels
t number an
neral descrip
n a catchm
are separ
ethod, but
heir downst
ment.
ber and type
ainage netwo
le 3.
H2.107
ent
Sub Catch
H 2
H2.53‐H2.1
Shire Counc
ng system
by a letter
er. Nodes w
given a num
ving a uniqu
ment and
within that
numbered ba
nd downstr
ve an upstr
ese can be
ion pits, sur
are given
nd are ident
ption and t
ment. Kerb
rated by t
are numbe
tream node
e of assets
ork are show
H2.17
7
ment
53
Node Nu
7
cil Dra
and
ithin
mber
e ID
sub
sub
ased
ream
ream
kerb
rface
n a
tified
their
and
their
ered
e for
that
wn in
umber
Sub
Catch
ment
2
H2.17‐H1.
inage Asset
Pit Type
Kerb Inlet Pit
Surface Inlet
Headwalls an
Junction Pit (
Gross Polluta
Table 2 : Drain
Asset Type
<300mm Dra
300–450mm
>450mm Dra
Surface Wate
Kerb and Gut
Table 3 : Drain
AssetRegThe organ
Enterprise
assets. The
that is fully
work mana
work to b
affected.
H1.10
H1.65
H1.53
Sub C
atch
ment 1
Sub C
atch
ment 2
10
Managemen
Pit
nd Outlets
Non‐catching
ant Traps
nage Node inve
inage Pipe
Drainage Pipe
inage Pipe
er Channel
tter
nage Assets Inv
gisterisation use
Suite softw
system inclu
integrated w
agement m
e captured
H1.10‐H1.53
H1.65‐H1.10
H1.6
Upstrea
nt Plan 2017‐
Num
1,505
767
229
g) 911
2
entory
Leng
583
e 50,93
18,73
12,55
141,4
ventory
es Technolo
ware to ma
udes an asset
with the fina
odules allo
against th
65 H1.10
am Node
Downstream No
‐2026 | 9
mber
5
gth (m)
33
31
54
455
ogy One
nage its
t register
ncial and
wing all
e assets
0
ode
10 | Dra
The sys
listed ag
be gene
collectio
All asset
be linke
allow ac
included
ConditInverell
its asset
the unif
part of
planning
Rating
1
2
3
4
5
Table 4 : C
ainage Asset
tem also al
gainst an as
erated from
on of long te
ts, defects a
d directly to
ccurate loca
d.
tionProfiShire Counc
ts on a one
form grading
the NSW G
g and report
Status
Excellent
Good
Fair
Poor
Very Poor
Condition Ratin
Managemen
llows for de
sset and wo
m these, aid
erm life cycl
nd work ord
o the mappin
ation inform
ilecil rates the
to five scale
g framework
Government’
ing reforms.
Definition
No work requ
Asset/Componew conditiomaintenanceno deterioratidentified.
Only minor m
work require
Provides a goservice with smaintenanceDeteriorationbut renewal nrequired.
Maintenance
required
Still meets ofservice requirequires regumaintenancerepairs.
Renewal requ
Level of servi
Urgent
renewal/upg
required.
Asset/Compolonger providlevel of servicuseful life.
ng General Des
nt Plan 2017
efects to be
rk orders to
ding in the
le cost data
ders can also
ng system to
mation to be
condition of
e in line with
k adopted as
s integrated
uired
onent is in as on. Normal e required buttion
maintenance
d
ood level of some e required. n identified not yet
e work
f level of rements but ular ongoing e and minor
uired
ce impaired..
rading
onent no des required ce. End of
criptions
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ile specific
d to assess
te, all states
eral descript
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ncipal comp
essment of
ects for each
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nual which
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hin the us
dition may f
te to anothe
ermine whe
et has chang
tify assigning
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n asset’s co
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s possible fo
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erioration ov
rrentCondie condition
eloped foll
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dition inform
ntenance in
re Council
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the nature
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er. Judgment
ether the c
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ginal evaluatas incorrect, of a capitout on the ndition. (Anbe capitaliseue of the asse
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itionprofiles in
owing an
ssment pro
2015. Visual
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mation as pa
spection pro
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em reflects
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om one cond
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tion of condor al nature wasset improny such wed and addeet).
ondition stat
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r as a resu
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Figure 3 w
inspection
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and
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llects
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All a
to d
that
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asse
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dition profile
nformation b
jectedCondncil has ad
s for drainag
et Type
nage Pipes
nage Pits
ace Channel
b and Gutter
e 5 : Useful live
assets covere
degrade even
t in each con
e the follow
remaining:
CS1 = 10
CS2 = 75
CS3 = 50
CS4 = 25
CS5 = 0%
h the adop
ight line
sidered app
ated and
rmation bec
he Long Te
ntified in th
ended on th
dition profile
of this pla
ure 4.
le the proj
ease in th
dition state
nowledge t
ision by Co
mmunity is
m these asset
ets remain fi
m would m
vice potentia
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es will be up
becomes ava
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e asset comp
es of drainage a
ed by this p
nly over the
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wing proport
00%
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%
pted useful
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omes availab
erm Financia
hat section
he assets as
e of the asse
an should c
jected cond
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e 3, it is
that this i
ouncil to e
extracting t
ts. In this co
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mean losing
l of the asse
Shire Council
pdated regu
ilable.
following us
ponents.
Useful Life(
100
100
100
70
assets
lan are assu
ir useful live
e an asset is
ion of its us
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as more a
ble.
al Plan rene
of the pla
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ts in 2026 at
closely resem
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l Drain
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Figure 3 : 2015
Figure 4 : 2026
0%
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20%
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CS1
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5 Asset Conditio
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ormwater Pitses & Channel
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ormwater Pitses & Channel
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ss
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ss
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ojectedProfile
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12 | Dra
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match
organisa
commun
meeting
it is imp
level of
then to
to delive
been rec
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framewo
that inf
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drainage
prescrib
that m
respons
therefor
interpre
duty o
manage
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and infl
asset m
service s
intend
relation
function
effective
followin
assets.
Inverell
assets th
ainage Asset
ngStandarmancebjective of a
the stand
ation provi
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portant for C
f service we
measure bo
er that serv
ceived by ou
toryRequry requirem
ork for min
frastructure
er, legislat
e infrastruct
be a set of
must be
ibilities enta
re general an
etation along
of care a
ment.
sofServicof service ar
uence all of
management
statements d
to deliver
to service
n, capacity
eness. Coun
g levels of
Shire Counc
hat:
minimise flo
are adequa
volume of w
are well des
Managemen
ards&M
asset manag
dard of s
ides with
s. To ensu
ations of our
Council to de
e intend to
oth what we
vice and how
ur community
uirementsments ofte
nimum level
is required
ion associ
ture does n
standards o
applied.
ailed upon
nd often sub
g general p
nd pruden
cere a key bus
f Inverell Sh
t decisions
describe the
to the co
es attribute
y, safety
ncil has a
service for
cil will provi
ooding of urb
ate for th
water;
igned and fr
nt Plan 2017
easuring
gement is to
service the
what the
ure we are
r community
escribe what
deliver and
e have done
w well it has
y.
sn set the
s of service
d to meet
iated with
ot generally
or principles
The lega
Council are
bject to loca
principles of
nt financia
siness driver
ire Council’s
s. Level of
e outputs we
mmunity in
es such as
and cost
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ide drainage
ban areas;
e expected
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minimis
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cate how su
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hnical Perfor
mmunity perf
w the comm
ms of the
ese are gene
ating to th
eived, time
sfaction with
e organisati
se measures
community
pporting the
asures are
asures deve
anisation pro
siredLevsired levels o
at service th
eive from th
ws Council
ter service fr
life of the pl
uncil will con
ermine whe
vice meet th
the drainage
n action 1.2)
in accordan
agement Str
re Council
se the enviro
n runoff on w
e the urban l
present a
nity; and
conomically,
mentally sus
ove stateme
performanc
uccessfully w
tment. Cou
measures i
erformance
rmance Mea
formance m
unity receive
expectation
rally measur
he number
to respon
h the aspect
ions perfor
s is to be re
annually.
e communit
e technica
loped to m
ovides the se
velsofSerf service are
he communi
he assets in
to work tow
rom the drai
lan.
nsult with th
ether the c
he communit
e network (S
. Consultatio
ce with Coun
rategy.
onmental im
water quality
landscape;
hazard to
, socially
stainable.
ents is suppo
ce measures
we are delive
ncil has def
in two te
Measures
asures.
easures rela
es the servi
ns listed ab
red using me
of compl
nd and ov
ts of the ser
rmance ag
eported bac
ty perform
al perform
easure how
ervice.
rvicee used to ind
ity would lik
the future.
ward providi
inage assets
he communi
urrent leve
ty’s expectat
See Improvem
on will be ca
ncil’s Comm
mpact
y;
the
and
orted
that
ering
fined
erms,
and
te to
ce in
bove.
etrics
aints
verall
rvice.
ainst
ck to
ance
ance
w the
icate
ke to
This
ing a
over
ty to
ls of
tions
ment
rried
unity
Key PerfoMea
Func
Safe
Envi
Table
Key PerfoMea
CostEffec
Cond
Func
Table
ormance asure
ction
ty
ronment
e 6 : Communit
ormance asure
t ctiveness
dition
ction
e 7 : Technical
Inverell S
Level of Servi
Sealed urban Roads are notobstructed byflooding
Private propeis not subjectto flooding froverflow of Council’s systin 1 in 10yr ev
Drainage infrastructurefree of hazard
Minimise the environmentaimpact of urbrunoff on watquality
ty Performance
Level of Servi
Assets are maintained inmost cost effective man
Assets are renewed as required
Assets are in good conditio
Flooding of uareas is minimised ansystem remaifree flowing
Performance M
Shire Council
ice Perfoproce
t y
Numbfloodiroads custosystem
erty ed om
tem vent.
Numbfloodirecordreque
Numbfloodiresidebuildicustosystem
e is ds
Numbaccideresultliabilit
al ban ter
Numbincideenvirofrom d
e Measures
ice Perfoproce
n the
nner.
Informannuamaintmana
Compfor rerequirmode
on Propo
inspec
fair ov
rban
nd ins
Time t
overfl
Measures
l Drain
rmance Measess
ber of incidenting of sealed u as recorded imer request m.
ber of incidenting of residended in customest system.
ber of incidenting of non‐ence inhabitedngs as recordmer request m.
ber of reporteents/ incidentting in potentity claims
ber of reporteents of onmental polldrainage syste
rmance Measess
mation collectally from tenance gement syste
parison of budnewal with red renewal elling from this
ortion of Leve
ctions returni
verall rating
to respond to
low
nage Asset M
sure Perf
ts of urban in
<10
ts of ces as
mer
Zero
ts of
d ed in
<5 p
ed ts ial
Zero
ed
lution em.
<3 p
sure Perf
ted
ems
Mai<$10
dget
s plan
BudAMP
l 2
ng a
90%
insp
over
or b
o 95%
resp
ado
Management
formance Targ
per annum
o
per annum
o
per annum
formance Targ
ntenance Cos000/km/yr
get matches P requirement
% of Level 2
ections return
rall rating of f
etter.
% of incidences
ponded to wit
pted timefram
Plan 2017‐2
get CurrenPerfor2014‐1
3
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1
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get CurrenPerfor2014‐1
st $870/k
ts Budgeexceedrequir
n an
fair
100%
s
hin
me
Not yemeasutimefrbe adowith th
2026 | 13
nt rmance 15
nt rmance 15
km
t ded ement
et ured – ames to opted his plan.
14 | Dra
PlannThis se
Manage
future d
identify
managin
to make
asset in
to note
proven
Influenc
governm
and co
predicte
As a con
factors m
develop
Assumpt
judgeme
and th
Therefo
treated
possible
definitiv
essentia
been no
PopulaPerhaps
factor i
change.
TOTALS:
Total Pop
Total Ho
Average
Implied D
Table 8 : P
CHANGE
Total Pop
Average
Total Ho
Average
Table 9 : P
ainage Asset
ningforthection of
ement Plan
demand for
the most
ng that dem
e optimised
vestment pr
that dema
wrong give
ces on dema
ment policy,
ommunity p
ed with certa
nsequence, a
may change
ment of fore
tions are
ents that con
he likelihoo
re the follow
with some
e future o
ve stateme
al to the fo
oted for each
ations the most
influencing
It is gener
pulation
useholds
Household Si
Dwellings
Population Pro
pulation Chan
Annual Popu
usehold Chan
Annual Hous
Population Cha
Managemen
heFuturthe Drain
attempts
r services i
t effective
and. This all
decisions r
roposals. It
and forecast
n the passa
and such as
technologic
preferences
ainty over lo
assumptions
between an
ecasts.
often
nsider past p
od of futu
wing forecas
caution an
outcomes r
nts. Any
ollowing for
h factor cons
commonly
demand is
rally the ke
2
1
6
ize 2
7
jections (NSW
nge
lation Growth
nge
ehold Growth
ange (NSW Dep
nt Plan 2017
enage Asset
to predict
in order to
means of
lows Counci
regarding its
is important
ts are often
age of time
s changes in
cal advances
cannot be
ong periods
made about
d during the
based on
performance
ure change
ts should be
nd taken as
rather than
assumptions
recasts have
idered
understood
population
y driver for
2011
16,600
6,700
2.44
7,600
Department of
2011
600
h 0.7%
350
h 1.1%
partment of Pla
‐2026
t
t
o
f
l
s
t
n
.
n
s
e
.
t
e
n
e
.
e
s
n
s
e
d
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r
grow
serv
the
requ
Pop
loca
8 a
Plan
the
203
Cou
grow
ProExp
typi
and
Dev
syst
as s
of a
con
The
fore
Livin
pred
per
rein
dem
2016
17,200
7,050
2.39
8,000
f Planning and
1 to 2016 2
55
% 0
30
% 0
anning and the
Inverell Shir
wth in all a
vices provide
number an
uired to prov
pulation proj
al governme
nd Table 9
nning and th
Shire’s popu
31. Demand
uncil’s draina
w slowly wit
opertyDeansion of
ically driven
the relea
velopers are
tems which b
soon as they
a maintenan
ditions of th
e most rec
ecasting wa
ng Lands
dicted annua
year base
nforces the p
mand for dra
2021
17,750
7,350
2.36
8,350
the Environme
016 to 2021
50
.6%
00
.9%
Environment,
re Council
reas and dri
ed by Coun
nd type of
vide these se
ections for t
nt area are o
. The NSW
he Environme
ulation will g
for servic
age assets w
h this increa
evelopmethe draina
n by proper
ase of ne
required to
become Cou
y enter servi
ce period, d
e developme
cent exerci
s completed
Strategy.
al yields of 3
d on histo
prediction of
inage infrast
2026
18,200
7,650
2.33
8,650
ent, 2014)
2021 to 202
500
0.5%
300
0.7%
2014)
ives demand
ncil and, in
assets that
ervices.
the Inverell S
outlined in T
Departmen
ent predicts
grow modest
ces provided
will continu
ase in popula
entage networ
rty developm
ew subdivis
o install drai
ncil assets e
ce or at the
epending on
ent approva
ise in dem
d for the
This stra
32 residentia
orical data.
f slow grow
tructure.
2031
18,600
7,900
2.30
8,950
26 2026 to
400
0.4%
250
0.7%
d for
turn,
t are
Shire
Table
nt of
that
tly to
d by
ue to
ation.
rk is
ment
sions.
nage
ither
e end
n the
l.
mand
2009
ategy
l lots
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th in
2031
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urba
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patt
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deve
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and
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banSalinian salinity r
se, and the i
bilisation an
an environm
etation com
terns of wate
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mpede grou
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ting costs.
f urban salinity
Shire Council
erTablee processes
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2026 | 15
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2026 | 17
ng these
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18 | Dra
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ppropriate m
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ironmental S
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ate danger
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ation’s pe
dentified de
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ally to Cou
Services Com
Shire Council
es through reg
ffective way
the assets
s occurring
essary. Howe
ent, defects
e refers to w
atter of urge
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mmittee.
l Drain
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and
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not
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and
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clear
an
ential
an
other
no
oding
in
n the
and
and
nage Asset M
In order to
maintenanc
following fu
Plan:
Year
2016‐2017
2017‐2018
2018‐2019
2019‐2020
2020‐2021
2021‐2022
2022‐2023
2023‐2024
2024‐2025
2025‐2026Table 10 : Ava
Management
fund both r
ce, Council
unding in its
Bu
$9
$9
$1
$1
$1
$1
$1
$1
$1
$1ilable Mainten
Plan 2017‐2
reactive and
has set as
Long Term
udget
96,000
98,530
101,120
103,780
106,520
109,330
112,210
115,170
118,210
121,320 nance Funding
2026 | 19
d routine
side the
Financial
20 | Dra
RenewDrainCapital
(materia
expecte
includes
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combina
upgrade
needs to
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expendi
refers t
publicat
guide fo
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(2013).
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rehabilit
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generall
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failed.
expendi
value c
compon
asset b
existing
on rev
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Due to t
stormwa
rehabilit
assets fa
fail as
assessm
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Decision
making
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wing andnageNetw
expenditur
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s renewal, e
capital
ation of ren
e expenditur
o be allocate
deciding w
ture is to
to the dec
tion Valuatio
or the not‐for
accrual base
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tates, replac
its original
y required
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It is
ture, relativ
compared w
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venue, but
ng and main
ted at the op
the variation
ater drainag
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ail or are ide
s part o
ments.
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n Making (
decision a
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organisation
technique
Managemen
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ewal, expan
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ed accordingl
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nt Plan 2017
ding the
tively large
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12 months. It
nd upgrade
involve a
nsion and/or
project cost
ly.
n item of
sed Counci
in the CPA
reciation ‐ A
public sector
ng standards
ich restores,
s an existing
ential. This is
asset has
life or has
y required
material) in
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ents of the
t reinstates
s no impact
duce future
xpenditure if
hysical life of
renewal and
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process that
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This
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ilable to ext
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Identify
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Identify
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Selectin
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ewal include
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e ORDM proc
des are sum
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10).
s section of
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uired to kee
dition and c
ding provide
ancial Plan.
re Council
end, augme
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performing
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ion of these
ng the most s
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ation.
ater drainag
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Service.
mance/Reliab
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cesses for ea
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ed in Coun
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ORDM are:
lysing the m
eatment opt
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options
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n for
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ach of the fa
Table 11 to T
on of Austra
also provid
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ts in satisfac
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Table
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Caus
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ODR
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RM Process
ses
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ificance
atment Option
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e 11 : Failure M
RM Process
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ificance
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e 12 : Failure M
Inverell S
Co
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Mode – Cost of S
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Mode ‐ Structur
Shire Council
ost of Service
• Excess• High n• Future• High o• Equipm
––
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• Degre• Busine
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• Raise –––
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tructural Inte
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• Degre• Risk to• Effect • Conse
• Reduc• Impro• Rehab• Replac
• Evalua• Benef
of failu• Rank c
al Integrity/Ass
l Drain
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sive maintenanumber of faile liabilities, reoperating costment or asset
Repairs anNew asset
sive subsidieson recurrent e liabilities forr operating co
ee to which coess viability –onal income
income deriveCustomer Present coPredictive
ce high cost actiate lower levall capital invball asset se of asset fer asset
lete ORDM evs and determi
grity/Asset M
tural integrity normal working on asset ex
internal prexternal p
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ee of damage co life on customerequences of fa
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ate cost/benefits to include ure cost/benefit a
set Mortality
nage Asset M
ance costslures due to pehabilitation ots due to poort obsolete nd spare partst would be mo
requiredcash flow r renewal worosts
osts exceeded ability to carr
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valuation on vine strategy in
Mortality (End
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s created)
see Risk Mana
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asset (divert frepair quicklybefore failure
efits of each opall consequen
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Management
oor conditionor replacemenr condition
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ty:
agement/Cons
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Plan 2017‐2
n nt works nece
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rated (return ming assets o
:
operations e, reliability, et
ment options total business
ife)
w level requir
sequence of F
e costed to pro
r investment
2026 | 21
ssary
on asset)r raise
tc.
picture
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obability
22 | Dra
Table 13 :
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Causes
Effects
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Evaluatio
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: Failure Mode
rocess
nce
nt Options
on
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‐ Performance
Perfor
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• • • • • • • •
•
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nt Plan 2017
/Reliability/Av
rmance/Relia
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bility
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ncluding busidards uences of failunst all opportu
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nection) failure)
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ime damage
ition monitori
overland flow
odel hieve necessa
storm events
ness consequ
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2026 | 23
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2026 | 25
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e 15 : Critical R
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entifies cred
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er to Council
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2026 | 27
as ‘Very
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ReferConcrete
CSIRO.
Garnaut
NSW D
Slinger,
Standard
ainage Asset
encese Pipe Asso
(2010). Imp
Costs of
Assets Proje
Pipe Associa
(2015). C
Retrieved A
Climate C
http://www
ia.gov.au/en
projections/
tool/project
t, R. (2008)
Change Rep
Cambridge U
Department
Environmen
Wales State
Area Popu
Dwelling P
Sydney, NSW
D., & Teni
Glove Box
Murrumbidg
Wagga: N
Primary Indu
ds Austr
managemen
Guidelines
31000:2009)
Managemen
ociation of
pacts on th
Stormwater
ects. Pymbl
ation of Aust
Climate Fut
August 27,
Change in
w.climatechan
n/climate‐
/climate‐futu
tions/
. The Garn
port. Port
University Pr
of Plannin
nt. (2014).
e and Local G
lation, Hou
rojections:
W, Australia.
son, K. (20
Guide: NSW
gee Catchme
NSW Depa
ustries.
ralia. (20
nt—Principle
(AS/NZ
). Sydney: Au
nt Plan 2017
Australasia
he Lifecycle
r Drainage
e: Concrete
rasia.
tures Tool
2015, from
Australia
ngeinaustral
ures‐
aut Climate
Melbourne
ress.
ng and the
New South
Government
sehold and
2014 Final
07). Salinity
W Murray &
ents. Wagga
rtment of
09). Risk
es and
ZS ISO
uthor.
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.
e
e
e
.
m
:
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:
e
h
t
d
.
y
&
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f
k
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O
Inverell Shirre Council
ApAsse
pendixAet Condition
Inverell S
AInspection M
Shire Council
Manual
l Drainnage Asset MManagement Plan 2017‐22026 | 31
ApProj
pendixBect Proposa
Inverell S
Bl Templates
Shire Councill Drainnage Asset MManagement Plan 2017‐22026 | 33
Inverell SShire Councill Drainnage Asset MManagement Plan 2017‐22026 | 35
Drainagee Asset Management Plaan 2017‐2026 Inverell Shire Council
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