243 5

1

!(å

!(å

!(å

")ñ

")ñ

")ñ

")ñ

")ñ

CELTIC AV

W 48TH AV

DUNB

AR S

T

W 39TH AV

BLEN

HEIM

ST

TAMA

THCR

ESCE

NT

BALA

CLAV

A ST

HALSSCRESCENT

HOLL

AND

ST

ALMA

ST

COLL

INGW

OOD

ST

W 41ST AV

CROW

N ST

CAMO

SUN

ST

SENN

OKCR

ESCE

NT

W 37TH AV

W 36TH AV

BALA

CLAV

A ST

WALL

ACE

PLAC

E

W 42ND AV

W 39TH AV

OLYM

PIC S

T

W 38TH AV

BALA

CLAV

A ST

MUSQUE

AMCL

OSE

SEMA

NACR

ESCE

NT

WALL

ACE

ST

W 48TH AV

SOUTHLANDSPLACE

MUSQUEAM DRIVE

W 43RD AV

W 44TH AV

W 38TH AV

OLYM

PIC S

T

TYTAHUNCRESCENT

W 46TH AV

PRES

COTT

ST

W 48TH AV

GLEN

DALO

UGHP

LACE

KULLAHUN DRIVE

CARR

INGT

ON S

T

W 51ST AV

W 40TH AV

MAYFAIR AV

W 40TH AV

W 49TH AV

W 47TH AV

DEERING ISLAND PLACE

W 51ST AV

HIGH

BURY

ST

HIGH

BURY

ST

WALL

ACE

STWA

LLAC

E ST

SALIS

H DR

IVE

SALISH DRIVE

STAULO CRESCENT

S T.C

LAIR

PLAC

E

STAU

LO C

RESC

ENT

YUCULTA CRESCENT

COLLINGWOOD PLACE

W 50TH AV

SW MARINE DRIVE

FRASER RIVER

MusqueamI.R. #2

DeeringIsland

Iona Island(RICHMOND)

4.5

\\van-mainfile\Projects\Projects\300227 CoV Coastal Flood Risk\GIS\300227_MSN_Map_FloodFraser.mxd

300227

17-JUN-2014Coordinate System: NAD 1983 UTM ZONE 10NUnits: METRES

SCALE - 1:5,000

±0 100 200 300 400M

VFOCEngineer GIS Reviewer Job Number

Date

MSN MM

www.n hc web .c o m

Critic a l Struc tures

!(Æc Lib ra ry

!(³Co mmun ity Cen tre/Neighb o urho o d Ho use

!(Ñ Ca re Fa c ility

!(åPub lic Elemen ta ry/Sec o n da ry Sc ho o l

!Y Fire Statio n

Flo o d Depths (c m) In c ludin g Freeb o a rd

0 to 50most houses are dry; walking in moving water or driving ispotentially dangerous; basements and undergroundparking may be flooded, potentially causing evacuation

50 to 100water on ground floor; basements and underground parkingflooded, potentially causing evacuation; electricity failed;vehicles are commonly carried off roadways

100 to 200 ground floor flooded; residents evacuate

200 to 500 first floor and often roof covered by water; residents evacuate

> 500; River first floor and often roof covered by water;residents evacuate

In dia n Reserve Bo un da ryCity Bo un da ryFuture Buildin g Fo o tprin ts (2041)

")ñ Pa rk

Disclaimer:This do c umen t ha s b een prepa red b y No rthwest Hydra ulic Co n sulta n ts Ltd. ina c c o rda n c e with gen era lly a c c epted en gin eerin g a n d geo sc ien c e pra c tic es a n d isin ten ded fo r the exc lusive use a n d b en efit o f the City o f V a n c o uver a n d theira utho rized represen tatives fo r spec ific a pplic a tio n to the Co a sta l Flo o d RiskAssessmen t Pro jec t fo r the City o f V a n c o uver Fra ser River a n d Burra rd In let(in c ludin g Po in t Grey, Kits Po in t, Fa lse Creek, En glish Ba y, Sta n ley Pa rk a n d theIn n er Ha rb o ur) sho relin es. The c o n ten ts o f this do c umen t a re n o t to b e relied upo n o rused, in who le o r in pa rt, b y o r fo r the b en efit o f o thers witho ut spec ific writtena utho riza tio n fro m No rthwest Hydra ulic Co n sulta n ts Ltd. No o ther wa rra n ty,expressed o r implied, is ma de.No rthwest Hydra ulic Co n sulta n ts Ltd. a n d its o ffic ers, direc to rs, emplo yees, a n da gen ts assume n o respo n sib ility fo r the relia n c e upo n this do c umen t o r a n y o f itsc o n ten ts b y a n y pa rties o ther tha n the City o f V a n c o uver.

1.2.3.

Buildin g fo o tprin ts supplied b y City o f V a n c o uver.2013 o rtho pho to supplied b y City o f V a n c o uver. Supplemen ted with 2010 Iko n o ssatellite ima gery fro m Esri a n d Geo Eye.In dex b a sema p fro m Natio n a l Geo gra phic a n d Esri.

Data Sources:

Po n d o r La ke depth unknown

SCENARIO 3 - YEAR 2100, SLR 1 MPROBABILITY OF 1/500

COASTAL FLOOD RISK ASSESSMENTFRASER RIVER FLOOD DEPTHS

INCLUDING FREEBOARD

MAP 1 OF 5

W a ter Level(in c ludin g0.6 mfreeb o a rd)

!W a ter Level -Tha lweg In tersectio n

1.2.

3.4.

NHC et a l. (2014). City o f V a n c o uver Flo o d Risk Assessmen t (Fin a l Repo rt). Repo rtprepa red fo r the City o f V a n c o uver.Ausen c o -Sa n dwell (2011). Clima te Cha n ge Ada pta tio n Guidelin es fo r Sea Dikes a n dCo a sta l Flo o d Ha za rd La n d Use: Guidelin es fo r M a n a gemen t o f Co a sta l Flo o dHa za rd La n d Use. Prepa red b y Ausen c o -Sa n dwell fo r BC M in istry o f En viro n men t.NHC (2008). Fraser River Hydra ulic M o del Upda te (Fin a l Repo rt). Repo rt prepa red fo rthe BC M in istry o f En viro n men t. 31 pp.NHC (2006). Lo wer Fra ser River Hydra ulic M o del Fin a l Repo rt. Prepa red b yNo rthwest Hydra ulic Co n sulta n ts a n d Trito n Co n sulta n ts fo r Fra ser Basin Co un c il.

References:

1.2.

3.4.5.

6.

7.

Flo o d levels were develo ped fo r five c o a sta l flo o d sc en a rio s a s desc rib ed in NHC eta l. (2014).High flo o d levels in this rea c h o f the Fra ser River a re prima rily go vern ed b y the o c ea nlevel a n d a re rela tively in sen sitive to the Fra ser River flo w (refer to NHC et a l., 2014).This ma p delin ea tes the Fraser River flo o d po ten tia l un der Yea r 2100 c o n ditio n s,assumin g a 1.0 m sea level rise (SLR) a n d a c urren t 500-yea r return perio d flo o deven t. A 500-yea r return perio d flo o d mea n s tha t, o n a vera ge, the flo o d will o c c uro n c e in 500 yea rs a n d tha t there is a o n e-in -500 c ha n c e that the flo o d levels ma ppedc o uld b e equa lled o r exc eeded in a n y o n e yea r (o r that there is a b o ut a o n e-in -10c ha n c e tha t the flo o d level ma pped c o uld b e equa lled o r exc eeded in a perio d o f 50yea rs).The a do pted va lue fo r SLR is b a sed o n guidelin es fro m Ausen c o -Sa n dwell (2011),a n d disc ussio n s a n d rec o mmen da tio n s fro m the pro jec t’s Tec hn ic a l Adviso ry Gro up.A freeb o a rd a llo wa n c e (sa fety fa c to r) o f 0.6 m is in c luded in the flo o d levels sho wn .The flo o d levels a re b a sed o n water surfa c e pro files simulated usin g a o n e-dimen sio n a l hydro dyn a mic mo del develo ped b y NHC (NHC, 2006 a n d NHC, 2008).Iso lin es, sho win g in c remen ta l wa ter levels a c ro ss the c ha n n el a n d flo o dpla in , wereestima ted usin g the mo del. The mo del geo metry was kept c o n sta n t at a ll flo wsa ltho ugh va ria tio n s (sc o ur a n d ero sio n ) ma y o c c ur durin g a flo o d. In the mo del, so medikes a n d ro a dwa ys were ra ised to c o n fin e the flo w. The o n e-dimen sio n a l mo del didn o t simula te water level va ria tio n s perpen dic ula r to flo w. Cha n n el a vulsio n s o rb lo c ka ges were assumed to b e a b sen t. The a c c ura c y o f the simulated flo o d levels islimited b y the relia b ility a n d ma gn itude o f the flo w a n d water level data used fo rc a lib ra tin g the mo del.LiDAR data surveyed in 2013 was used to c rea te a Digita l Elevatio n M o del (DEM ) fo rthe City o f V a n c o uver; the DEM surfa c e was edited to remo ve b uildin gs a n dtempo ra ry fea tures. The ma ps depic t flo o d levels b a sed o n gro un d c o n ditio n s a t thetime o f the surveys. The a c c ura c y o f the lo c a tio n o f a flo o dpla in b o un da ry is limitedb y the a c c ura c y o f the DEM . Cha n ges to the c ha n n el, flo o dpla in , a n d river b a sinrun o ff will a ffec t the flo o d levels a n d ren der site-spec ific in fo rmatio n o b so lete. Lo c a lfea tures suc h as ro a ds, ra ilwa ys o r dikes c a n restric t flo w a n d lo c a lly a ffec t flo o dlevels. Cha n n el o b struc tio n s, lo c a l sto rm wa ter, gro un dwa ter o r trib uta ry strea ms ma ya lso a ffec t flo o d levels. The flo o d ma ppin g do es n o t ta ke lo c a l fea tures in to a c c o un t.A Qua lified Pro fessio n a l must b e c o n sulted fo r site-spec ific en gin eerin g a n a lysis.Flo o din g fro m o ther so urc es, suc h as tsun a mis o r la n dslide gen era ted wa ves, sho uldb e c o n firmed with a ppro pria te ma ps a n d reso urc es.In dustry b est pra c tic es were fo llo wed to gen era te the flo o d ma ps. Ho wever, a c tua lflo o d levels a n d exten ts ma y va ry fro m tho se sho wn a n d No rthwest Hydra ulicCo n sulta n ts Ltd. (NHC) do es n o t a ssume a n y lia b ility fo r suc h va ria tio n s.

Notes:

243 5

1

!(å

!(å

!(å

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

!

CELTIC AV

W 53RD AV

W 57TH AV

W 52ND AV

BEEC

HWOO

D ST

ARBU

TUS

ST

W 49TH AV

W 48TH AVSW MARINE DRIVE

MACDONA LDS T

W 59TH AV

W 54TH AV

BLEN

HEIM

ST

W 69TH AV

BALA

CLAV

A ST

W 62ND AV

W 48TH AV

MAPL

E ST

W 53RD AV

W 55TH AV

W 47TH AV

ANGU

S DR

IVE

W 63RD AV

W 65TH AV

W 50TH AV

W 51ST AV

WILT

SHIR

E ST

MARG

UERI

TE S

T

W 68TH AV

W 61ST AV

W 60TH AV

W 47TH AV

W 54TH AV

W 51ST AV

MAPL

E ST

LIME

ST

W 60TH AV

BALS

AM S

T

W 47TH AV

VINE

ST

WILT

SHIR

E ST

LARC

H ST

VINE

ST

W 62ND AV

W 46TH AV

BALS

AM S

T

W 46TH AV

ELM

ST

W 47TH AV

CYPR

ESS

ST

W 48TH AV

MAPL

E ST

W 61ST AV

W 59TH AV

LABU

RNUM

ST

WALL

ACE

ST

W 48TH AV

W 63RD AV

BALS

AMPL

ACE

WEST BOULEVARD

SOUTHLANDSPLACE

BEEC

HWOO

DS T

W 58TH AV

W 46TH AV

ANGU

S DR

IVE

PRES

COTT

ST

W 48TH AV

GLEN

DALO

UGH

PLACE

MACK

ENZIE

P LAC

E

CARR

INGT

ON S

T

W 58TH AV

W 66TH AV

MCCL

EERY

ST

CEDA

RHUR

ST S

T

W 51ST AV

W 57TH AV

CARN

ARVO

N ST

ARBU

TUS

ST

MARINECRESCENT

W 49TH AV

W 47TH AV CARN

ARVO

N ST

DEERING ISLAND PLACE

W 50TH AV

W 51ST AV

ANGU

S DR

IVE

MARI

NE C

RESC

ENT

EAST

BOU

LEVA

RD

EAST BOULEVARD

EAST BOULEVARD

Y EWS T

YEW

ST

LABURNUM

ST

LABU

RNUM

ST

HIGH

BURY

ST

WES

TB OUL

E VAR

D

ARBUTUSDIVERSION

MACK

ENZI

E ST

W 50TH AV

SW MARINE DRIVE

FRASER RIVER

Iona Island(RICHMOND)

DeeringIsland

Sea Island(RICHMOND)

4.5

4.5

\\van-mainfile\Projects\Projects\300227 CoV Coastal Flood Risk\GIS\300227_MSN_Map_FloodFraser.mxd

300227

17-JUN-2014Coordinate System: NAD 1983 UTM ZONE 10NUnits: METRES

SCALE - 1:5,000

±0 100 200 300 400M

VFOCEngineer GIS Reviewer Job Number

Date

MSN MM

www.n hc web .c o m

Critic a l Struc tures

!(Æc Lib ra ry

!(³Co mmun ity Cen tre/Neighb o urho o d Ho use

!(Ñ Ca re Fa c ility

!(åPub lic Elemen ta ry/Sec o n da ry Sc ho o l

!Y Fire Statio n

Flo o d Depths (c m) In c ludin g Freeb o a rd

0 to 50most houses are dry; walking in moving water or driving ispotentially dangerous; basements and undergroundparking may be flooded, potentially causing evacuation

50 to 100water on ground floor; basements and underground parkingflooded, potentially causing evacuation; electricity failed;vehicles are commonly carried off roadways

100 to 200 ground floor flooded; residents evacuate

200 to 500 first floor and often roof covered by water; residents evacuate

> 500; River first floor and often roof covered by water;residents evacuate

In dia n Reserve Bo un da ryCity Bo un da ryFuture Buildin g Fo o tprin ts (2041)

")ñ Pa rk

Disclaimer:This do c umen t ha s b een prepa red b y No rthwest Hydra ulic Co n sulta n ts Ltd. ina c c o rda n c e with gen era lly a c c epted en gin eerin g a n d geo sc ien c e pra c tic es a n d isin ten ded fo r the exc lusive use a n d b en efit o f the City o f V a n c o uver a n d theira utho rized represen tatives fo r spec ific a pplic a tio n to the Co a sta l Flo o d RiskAssessmen t Pro jec t fo r the City o f V a n c o uver Fra ser River a n d Burra rd In let(in c ludin g Po in t Grey, Kits Po in t, Fa lse Creek, En glish Ba y, Sta n ley Pa rk a n d theIn n er Ha rb o ur) sho relin es. The c o n ten ts o f this do c umen t a re n o t to b e relied upo n o rused, in who le o r in pa rt, b y o r fo r the b en efit o f o thers witho ut spec ific writtena utho riza tio n fro m No rthwest Hydra ulic Co n sulta n ts Ltd. No o ther wa rra n ty,expressed o r implied, is ma de.No rthwest Hydra ulic Co n sulta n ts Ltd. a n d its o ffic ers, direc to rs, emplo yees, a n da gen ts assume n o respo n sib ility fo r the relia n c e upo n this do c umen t o r a n y o f itsc o n ten ts b y a n y pa rties o ther tha n the City o f V a n c o uver.

1.2.3.

Buildin g fo o tprin ts supplied b y City o f V a n c o uver.2013 o rtho pho to supplied b y City o f V a n c o uver. Supplemen ted with 2010 Iko n o ssatellite ima gery fro m Esri a n d Geo Eye.In dex b a sema p fro m Natio n a l Geo gra phic a n d Esri.

Data Sources:

Po n d o r La ke depth unknown

SCENARIO 3 - YEAR 2100, SLR 1 MPROBABILITY OF 1/500

COASTAL FLOOD RISK ASSESSMENTFRASER RIVER FLOOD DEPTHS

INCLUDING FREEBOARD

MAP 2 OF 5

W a ter Level(in c ludin g0.6 mfreeb o a rd)

!W a ter Level -Tha lweg In tersectio n

1.2.

3.4.

NHC et a l. (2014). City o f V a n c o uver Flo o d Risk Assessmen t (Fin a l Repo rt). Repo rtprepa red fo r the City o f V a n c o uver.Ausen c o -Sa n dwell (2011). Clima te Cha n ge Ada pta tio n Guidelin es fo r Sea Dikes a n dCo a sta l Flo o d Ha za rd La n d Use: Guidelin es fo r M a n a gemen t o f Co a sta l Flo o dHa za rd La n d Use. Prepa red b y Ausen c o -Sa n dwell fo r BC M in istry o f En viro n men t.NHC (2008). Fraser River Hydra ulic M o del Upda te (Fin a l Repo rt). Repo rt prepa red fo rthe BC M in istry o f En viro n men t. 31 pp.NHC (2006). Lo wer Fra ser River Hydra ulic M o del Fin a l Repo rt. Prepa red b yNo rthwest Hydra ulic Co n sulta n ts a n d Trito n Co n sulta n ts fo r Fra ser Basin Co un c il.

References:

1.2.

3.4.5.

6.

7.

Flo o d levels were develo ped fo r five c o a sta l flo o d sc en a rio s a s desc rib ed in NHC eta l. (2014).High flo o d levels in this rea c h o f the Fra ser River a re prima rily go vern ed b y the o c ea nlevel a n d a re rela tively in sen sitive to the Fra ser River flo w (refer to NHC et a l., 2014).This ma p delin ea tes the Fraser River flo o d po ten tia l un der Yea r 2100 c o n ditio n s,assumin g a 1.0 m sea level rise (SLR) a n d a c urren t 500-yea r return perio d flo o deven t. A 500-yea r return perio d flo o d mea n s tha t, o n a vera ge, the flo o d will o c c uro n c e in 500 yea rs a n d tha t there is a o n e-in -500 c ha n c e that the flo o d levels ma ppedc o uld b e equa lled o r exc eeded in a n y o n e yea r (o r that there is a b o ut a o n e-in -10c ha n c e tha t the flo o d level ma pped c o uld b e equa lled o r exc eeded in a perio d o f 50yea rs).The a do pted va lue fo r SLR is b a sed o n guidelin es fro m Ausen c o -Sa n dwell (2011),a n d disc ussio n s a n d rec o mmen da tio n s fro m the pro jec t’s Tec hn ic a l Adviso ry Gro up.A freeb o a rd a llo wa n c e (sa fety fa c to r) o f 0.6 m is in c luded in the flo o d levels sho wn .The flo o d levels a re b a sed o n water surfa c e pro files simulated usin g a o n e-dimen sio n a l hydro dyn a mic mo del develo ped b y NHC (NHC, 2006 a n d NHC, 2008).Iso lin es, sho win g in c remen ta l wa ter levels a c ro ss the c ha n n el a n d flo o dpla in , wereestima ted usin g the mo del. The mo del geo metry was kept c o n sta n t at a ll flo wsa ltho ugh va ria tio n s (sc o ur a n d ero sio n ) ma y o c c ur durin g a flo o d. In the mo del, so medikes a n d ro a dwa ys were ra ised to c o n fin e the flo w. The o n e-dimen sio n a l mo del didn o t simula te water level va ria tio n s perpen dic ula r to flo w. Cha n n el a vulsio n s o rb lo c ka ges were assumed to b e a b sen t. The a c c ura c y o f the simulated flo o d levels islimited b y the relia b ility a n d ma gn itude o f the flo w a n d water level data used fo rc a lib ra tin g the mo del.LiDAR data surveyed in 2013 was used to c rea te a Digita l Elevatio n M o del (DEM ) fo rthe City o f V a n c o uver; the DEM surfa c e was edited to remo ve b uildin gs a n dtempo ra ry fea tures. The ma ps depic t flo o d levels b a sed o n gro un d c o n ditio n s a t thetime o f the surveys. The a c c ura c y o f the lo c a tio n o f a flo o dpla in b o un da ry is limitedb y the a c c ura c y o f the DEM . Cha n ges to the c ha n n el, flo o dpla in , a n d river b a sinrun o ff will a ffec t the flo o d levels a n d ren der site-spec ific in fo rmatio n o b so lete. Lo c a lfea tures suc h as ro a ds, ra ilwa ys o r dikes c a n restric t flo w a n d lo c a lly a ffec t flo o dlevels. Cha n n el o b struc tio n s, lo c a l sto rm wa ter, gro un dwa ter o r trib uta ry strea ms ma ya lso a ffec t flo o d levels. The flo o d ma ppin g do es n o t ta ke lo c a l fea tures in to a c c o un t.A Qua lified Pro fessio n a l must b e c o n sulted fo r site-spec ific en gin eerin g a n a lysis.Flo o din g fro m o ther so urc es, suc h as tsun a mis o r la n dslide gen era ted wa ves, sho uldb e c o n firmed with a ppro pria te ma ps a n d reso urc es.In dustry b est pra c tic es were fo llo wed to gen era te the flo o d ma ps. Ho wever, a c tua lflo o d levels a n d exten ts ma y va ry fro m tho se sho wn a n d No rthwest Hydra ulicCo n sulta n ts Ltd. (NHC) do es n o t a ssume a n y lia b ility fo r suc h va ria tio n s.

Notes:

243 5

1!(³

!(³

!(å

!(å

!(å

!(å

!Y

!(Æc

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

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")ñ

")ñ

")ñ")ñ

")ñ

!GR

ANVIL

LE S

T

W 70TH AV

HEAT

HER

ST

W 63RD AV

W 60TH AV

YUKO

N ST

W 70TH AV

ASH

ST

SELK

IRK

ST

OAK

ST

COLU

MBIA

ST

W 59TH AV

HUDS

ON S

T

W 64TH AV

W 69TH AV

CAR T

IER

S T

OSLE

R ST

LAUREL ST

SHAUGHNESSY ST

W 62ND AV

LAUR

EL S

T

W 71ST AV

W 59TH AV

MAPL

E ST

ASH

ST

LAUR

EL S

T

MONT

CALM

ST

CART

IERP

LACE

MILTON

ST

SHAU

GHNE

SSY

ST

W 76TH AV

W 77TH AV

W 62ND AV

PARK DRIVE

FREM

LIN S

T

W 67TH AV

W 75TH AV

W 66TH AV

W 63RD AV

W 65TH AV

W 62ND AV

W 62ND AV

W 61ST AV

CORN

ISH

ST

SELK

IRK

ST

HUDS

ON S

T

W 68TH AV

MONT

CALM

ST

ADER

A ST

W 63RD AV

FREN

CH S

T

BIRC

H ST

HAIG

ST

W 72ND AV

MONT

CALM

ST

W 68TH AV

W 61ST AV

W 60TH AV

ALBE

RTA

ST

W 60TH AV

W 66TH AV

WILT

SHIR

E ST

W 65TH AV

W 62ND AV

W 64TH AV

CAMB

IE S

T

CART

IER

ST

W 61ST AV

W 59TH AV

W 61ST AV

CART

IER

ST

W 64TH AV

W 63RD AV

W 58TH AV

W 71ST AV

OAK

ST

LAUR

EL S

T

BARN

ARD

ST

AISNE ST

HEATHER ST

AVERY AV

W KENT AV NORTH

W 69TH AV

W 68TH AV

W 70TH AV

ANGU

S DR

IVE

BENT

LEY ST

W KENT AV NORTH

RAND AV

W 74TH AV

BARN

ARD

ST

W 69TH AV

W 68TH AV

W 66TH AV

W KENT AV SOUTH

YUKO

N ST

LOGA

N ST

W 66TH AV

W 68TH AV

YUKO

N ST

ANGU

S DR

IVE

NUNA

VUT L

ANE

ADER

A ST

EAST BOULEVARD

W 73RD AV

LABURNUM

ST

LABU

RNUM

ST

LORD

ST

OAK ST

SASKATCHEWANLANE

SW MARINE DRIVE

SW MARINE DRIVE

SW MARINE DRIVE

FRASER RIVER

ARTH

UR LA

ING

BRID

GEMARPOLE RAIL BRIDGE

OAK ST BRIDGE

NORT

H AR

M BR

IDGE

(CAN

ADA

LINE)

RichmondIsland

Sea Island(RICHMOND)

Lulu Island(RICHMOND)

4.5

\\van-mainfile\Projects\Projects\300227 CoV Coastal Flood Risk\GIS\300227_MSN_Map_FloodFraser.mxd

300227

17-JUN-2014Coordinate System: NAD 1983 UTM ZONE 10NUnits: METRES

SCALE - 1:5,000

±0 100 200 300 400M

VFOCEngineer GIS Reviewer Job Number

Date

MSN MM

www.n hc web .c o m

Critic a l Struc tures

!(Æc Lib ra ry

!(³Co mmun ity Cen tre/Neighb o urho o d Ho use

!(Ñ Ca re Fa c ility

!(åPub lic Elemen ta ry/Sec o n da ry Sc ho o l

!Y Fire Statio n

Flo o d Depths (c m) In c ludin g Freeb o a rd

0 to 50most houses are dry; walking in moving water or driving ispotentially dangerous; basements and undergroundparking may be flooded, potentially causing evacuation

50 to 100water on ground floor; basements and underground parkingflooded, potentially causing evacuation; electricity failed;vehicles are commonly carried off roadways

100 to 200 ground floor flooded; residents evacuate

200 to 500 first floor and often roof covered by water; residents evacuate

> 500; River first floor and often roof covered by water;residents evacuate

In dia n Reserve Bo un da ryCity Bo un da ryFuture Buildin g Fo o tprin ts (2041)

")ñ Pa rk

Disclaimer:This do c umen t ha s b een prepa red b y No rthwest Hydra ulic Co n sulta n ts Ltd. ina c c o rda n c e with gen era lly a c c epted en gin eerin g a n d geo sc ien c e pra c tic es a n d isin ten ded fo r the exc lusive use a n d b en efit o f the City o f V a n c o uver a n d theira utho rized represen tatives fo r spec ific a pplic a tio n to the Co a sta l Flo o d RiskAssessmen t Pro jec t fo r the City o f V a n c o uver Fra ser River a n d Burra rd In let(in c ludin g Po in t Grey, Kits Po in t, Fa lse Creek, En glish Ba y, Sta n ley Pa rk a n d theIn n er Ha rb o ur) sho relin es. The c o n ten ts o f this do c umen t a re n o t to b e relied upo n o rused, in who le o r in pa rt, b y o r fo r the b en efit o f o thers witho ut spec ific writtena utho riza tio n fro m No rthwest Hydra ulic Co n sulta n ts Ltd. No o ther wa rra n ty,expressed o r implied, is ma de.No rthwest Hydra ulic Co n sulta n ts Ltd. a n d its o ffic ers, direc to rs, emplo yees, a n da gen ts assume n o respo n sib ility fo r the relia n c e upo n this do c umen t o r a n y o f itsc o n ten ts b y a n y pa rties o ther tha n the City o f V a n c o uver.

1.2.3.

Buildin g fo o tprin ts supplied b y City o f V a n c o uver.2013 o rtho pho to supplied b y City o f V a n c o uver. Supplemen ted with 2010 Iko n o ssatellite ima gery fro m Esri a n d Geo Eye.In dex b a sema p fro m Natio n a l Geo gra phic a n d Esri.

Data Sources:

Po n d o r La ke depth unknown

SCENARIO 3 - YEAR 2100, SLR 1 MPROBABILITY OF 1/500

COASTAL FLOOD RISK ASSESSMENTFRASER RIVER FLOOD DEPTHS

INCLUDING FREEBOARD

MAP 3 OF 5

W a ter Level(in c ludin g0.6 mfreeb o a rd)

!W a ter Level -Tha lweg In tersectio n

1.2.

3.4.

NHC et a l. (2014). City o f V a n c o uver Flo o d Risk Assessmen t (Fin a l Repo rt). Repo rtprepa red fo r the City o f V a n c o uver.Ausen c o -Sa n dwell (2011). Clima te Cha n ge Ada pta tio n Guidelin es fo r Sea Dikes a n dCo a sta l Flo o d Ha za rd La n d Use: Guidelin es fo r M a n a gemen t o f Co a sta l Flo o dHa za rd La n d Use. Prepa red b y Ausen c o -Sa n dwell fo r BC M in istry o f En viro n men t.NHC (2008). Fraser River Hydra ulic M o del Upda te (Fin a l Repo rt). Repo rt prepa red fo rthe BC M in istry o f En viro n men t. 31 pp.NHC (2006). Lo wer Fra ser River Hydra ulic M o del Fin a l Repo rt. Prepa red b yNo rthwest Hydra ulic Co n sulta n ts a n d Trito n Co n sulta n ts fo r Fra ser Basin Co un c il.

References:

1.2.

3.4.5.

6.

7.

Flo o d levels were develo ped fo r five c o a sta l flo o d sc en a rio s a s desc rib ed in NHC eta l. (2014).High flo o d levels in this rea c h o f the Fra ser River a re prima rily go vern ed b y the o c ea nlevel a n d a re rela tively in sen sitive to the Fra ser River flo w (refer to NHC et a l., 2014).This ma p delin ea tes the Fraser River flo o d po ten tia l un der Yea r 2100 c o n ditio n s,assumin g a 1.0 m sea level rise (SLR) a n d a c urren t 500-yea r return perio d flo o deven t. A 500-yea r return perio d flo o d mea n s tha t, o n a vera ge, the flo o d will o c c uro n c e in 500 yea rs a n d tha t there is a o n e-in -500 c ha n c e that the flo o d levels ma ppedc o uld b e equa lled o r exc eeded in a n y o n e yea r (o r that there is a b o ut a o n e-in -10c ha n c e tha t the flo o d level ma pped c o uld b e equa lled o r exc eeded in a perio d o f 50yea rs).The a do pted va lue fo r SLR is b a sed o n guidelin es fro m Ausen c o -Sa n dwell (2011),a n d disc ussio n s a n d rec o mmen da tio n s fro m the pro jec t’s Tec hn ic a l Adviso ry Gro up.A freeb o a rd a llo wa n c e (sa fety fa c to r) o f 0.6 m is in c luded in the flo o d levels sho wn .The flo o d levels a re b a sed o n water surfa c e pro files simulated usin g a o n e-dimen sio n a l hydro dyn a mic mo del develo ped b y NHC (NHC, 2006 a n d NHC, 2008).Iso lin es, sho win g in c remen ta l wa ter levels a c ro ss the c ha n n el a n d flo o dpla in , wereestima ted usin g the mo del. The mo del geo metry was kept c o n sta n t at a ll flo wsa ltho ugh va ria tio n s (sc o ur a n d ero sio n ) ma y o c c ur durin g a flo o d. In the mo del, so medikes a n d ro a dwa ys were ra ised to c o n fin e the flo w. The o n e-dimen sio n a l mo del didn o t simula te water level va ria tio n s perpen dic ula r to flo w. Cha n n el a vulsio n s o rb lo c ka ges were assumed to b e a b sen t. The a c c ura c y o f the simulated flo o d levels islimited b y the relia b ility a n d ma gn itude o f the flo w a n d water level data used fo rc a lib ra tin g the mo del.LiDAR data surveyed in 2013 was used to c rea te a Digita l Elevatio n M o del (DEM ) fo rthe City o f V a n c o uver; the DEM surfa c e was edited to remo ve b uildin gs a n dtempo ra ry fea tures. The ma ps depic t flo o d levels b a sed o n gro un d c o n ditio n s a t thetime o f the surveys. The a c c ura c y o f the lo c a tio n o f a flo o dpla in b o un da ry is limitedb y the a c c ura c y o f the DEM . Cha n ges to the c ha n n el, flo o dpla in , a n d river b a sinrun o ff will a ffec t the flo o d levels a n d ren der site-spec ific in fo rmatio n o b so lete. Lo c a lfea tures suc h as ro a ds, ra ilwa ys o r dikes c a n restric t flo w a n d lo c a lly a ffec t flo o dlevels. Cha n n el o b struc tio n s, lo c a l sto rm wa ter, gro un dwa ter o r trib uta ry strea ms ma ya lso a ffec t flo o d levels. The flo o d ma ppin g do es n o t ta ke lo c a l fea tures in to a c c o un t.A Qua lified Pro fessio n a l must b e c o n sulted fo r site-spec ific en gin eerin g a n a lysis.Flo o din g fro m o ther so urc es, suc h as tsun a mis o r la n dslide gen era ted wa ves, sho uldb e c o n firmed with a ppro pria te ma ps a n d reso urc es.In dustry b est pra c tic es were fo llo wed to gen era te the flo o d ma ps. Ho wever, a c tua lflo o d levels a n d exten ts ma y va ry fro m tho se sho wn a n d No rthwest Hydra ulicCo n sulta n ts Ltd. (NHC) do es n o t a ssume a n y lia b ility fo r suc h va ria tio n s.

Notes:

243 5

1

!(Ñ

!(Ñ

!(Ñ

!(Ñ

!(å

!(å!(å

!(å

!Y !(Æc

")ñ

")ñ

")ñ

")ñ")ñ

!

!

E 57TH AV

FRAS

ER ST

PRIN

CE E

DWAR

D ST

W 63RD AV

YUKO

N ST

E 61ST AV

E 59TH AV

E 63RD AV

E 59TH AV

E 62ND AV

BUSC

OMBE

ST

COLU

MBIA

ST

E 64TH AV

E KENT AV SOUTH

MAIN

ST

BEAT

RICE

ST

E 64TH AV

MANI

T OBA

ST

PRESTWICK DRIVEE 64TH AV

ST. G

EORG

E ST

E 62ND AV

ARGY

LE S

T

POPL

AR S

T

CHESTER ST

E 60TH AV

E 64TH AV

ROSS

ST

E 65TH AV

E 58TH AV

PRI N

CEAL

B ERT

ST

INVE

RNES

S ST

W 61ST AV

W 62ND AV

CULL

ODEN

ST

W 60TH AV

SHER

BROO

KE S

T

WIND

SOR

ST

UPLAND DRIVE

BRAEBURN ST

DUMF

RIES

ST

E 59TH AV

E 58TH AV

E 60TH AV

ARGY

LE S

T

ALBE

RTA

ST

CROM

PTON

ST

LEAS

IDE

ST

FLEM

ING

ST

E 62ND AV

E 63RD AV

E 64TH AV

WIN

DSO R

ST

SOPH

IA S

T

ARGY

LE S

T

E 65TH AV

NASS

AUDRIVE

E 64TH AV

ONTA

RIO

ST

W 64TH AV

E 63RD AV

ST. G

EORG

E ST

E 58TH AV

E 69TH AV

W 58TH AV

E KENT AV SOUTH

E 64TH AV

W KENT AV SOUTH

COLU

MBIA

ST

E 67TH AV

W 68TH AV

E 58TH AV

W 70TH AV

W KENT AV NORTH

E 66TH AV

E 64TH AV

ST. G

EORG

E ST

W 71ST AV

YUKO

N ST

ONTA

RIO

ST

BORD

EN S

T

SHER

BROO

KE S

T

MAIN

ST

W 69TH AV

R OSS

ST

ISLAND AV

YUKO

N ST

PRIN

CE E

DWAR

D ST

JASPER CRESCENT

JASPER CRESCENT

KNIG

HT ST

BORD

EN S

T

THORNHILL DRIVE

THOR

NHILL

DRI

VE

SE MARINE DRIVE

SW MARINE DRIVE

FRASER RIVER

MITC

HELL

ISLA

NDBR

IDGE

KNIG

HT ST

BRI

DGE

NORT

H

MitchellIsland

Lulu Island(RICHMOND)

4.6

4.5

\\van-mainfile\Projects\Projects\300227 CoV Coastal Flood Risk\GIS\300227_MSN_Map_FloodFraser.mxd

300227

17-JUN-2014Coordinate System: NAD 1983 UTM ZONE 10NUnits: METRES

SCALE - 1:5,000

±0 100 200 300 400M

VFOCEngineer GIS Reviewer Job Number

Date

MSN MM

www.n hc web .c o m

Critic a l Struc tures

!(Æc Lib ra ry

!(³Co mmun ity Cen tre/Neighb o urho o d Ho use

!(Ñ Ca re Fa c ility

!(åPub lic Elemen ta ry/Sec o n da ry Sc ho o l

!Y Fire Statio n

Flo o d Depths (c m) In c ludin g Freeb o a rd

0 to 50most houses are dry; walking in moving water or driving ispotentially dangerous; basements and undergroundparking may be flooded, potentially causing evacuation

50 to 100water on ground floor; basements and underground parkingflooded, potentially causing evacuation; electricity failed;vehicles are commonly carried off roadways

100 to 200 ground floor flooded; residents evacuate

200 to 500 first floor and often roof covered by water; residents evacuate

> 500; River first floor and often roof covered by water;residents evacuate

In dia n Reserve Bo un da ryCity Bo un da ryFuture Buildin g Fo o tprin ts (2041)

")ñ Pa rk

Disclaimer:This do c umen t ha s b een prepa red b y No rthwest Hydra ulic Co n sulta n ts Ltd. ina c c o rda n c e with gen era lly a c c epted en gin eerin g a n d geo sc ien c e pra c tic es a n d isin ten ded fo r the exc lusive use a n d b en efit o f the City o f V a n c o uver a n d theira utho rized represen tatives fo r spec ific a pplic a tio n to the Co a sta l Flo o d RiskAssessmen t Pro jec t fo r the City o f V a n c o uver Fra ser River a n d Burra rd In let(in c ludin g Po in t Grey, Kits Po in t, Fa lse Creek, En glish Ba y, Sta n ley Pa rk a n d theIn n er Ha rb o ur) sho relin es. The c o n ten ts o f this do c umen t a re n o t to b e relied upo n o rused, in who le o r in pa rt, b y o r fo r the b en efit o f o thers witho ut spec ific writtena utho riza tio n fro m No rthwest Hydra ulic Co n sulta n ts Ltd. No o ther wa rra n ty,expressed o r implied, is ma de.No rthwest Hydra ulic Co n sulta n ts Ltd. a n d its o ffic ers, direc to rs, emplo yees, a n da gen ts assume n o respo n sib ility fo r the relia n c e upo n this do c umen t o r a n y o f itsc o n ten ts b y a n y pa rties o ther tha n the City o f V a n c o uver.

1.2.3.

Buildin g fo o tprin ts supplied b y City o f V a n c o uver.2013 o rtho pho to supplied b y City o f V a n c o uver. Supplemen ted with 2010 Iko n o ssatellite ima gery fro m Esri a n d Geo Eye.In dex b a sema p fro m Natio n a l Geo gra phic a n d Esri.

Data Sources:

Po n d o r La ke depth unknown

SCENARIO 3 - YEAR 2100, SLR 1 MPROBABILITY OF 1/500

COASTAL FLOOD RISK ASSESSMENTFRASER RIVER FLOOD DEPTHS

INCLUDING FREEBOARD

MAP 4 OF 5

W a ter Level(in c ludin g0.6 mfreeb o a rd)

!W a ter Level -Tha lweg In tersectio n

1.2.

3.4.

NHC et a l. (2014). City o f V a n c o uver Flo o d Risk Assessmen t (Fin a l Repo rt). Repo rtprepa red fo r the City o f V a n c o uver.Ausen c o -Sa n dwell (2011). Clima te Cha n ge Ada pta tio n Guidelin es fo r Sea Dikes a n dCo a sta l Flo o d Ha za rd La n d Use: Guidelin es fo r M a n a gemen t o f Co a sta l Flo o dHa za rd La n d Use. Prepa red b y Ausen c o -Sa n dwell fo r BC M in istry o f En viro n men t.NHC (2008). Fraser River Hydra ulic M o del Upda te (Fin a l Repo rt). Repo rt prepa red fo rthe BC M in istry o f En viro n men t. 31 pp.NHC (2006). Lo wer Fra ser River Hydra ulic M o del Fin a l Repo rt. Prepa red b yNo rthwest Hydra ulic Co n sulta n ts a n d Trito n Co n sulta n ts fo r Fra ser Basin Co un c il.

References:

1.2.

3.4.5.

6.

7.

Flo o d levels were develo ped fo r five c o a sta l flo o d sc en a rio s a s desc rib ed in NHC eta l. (2014).High flo o d levels in this rea c h o f the Fra ser River a re prima rily go vern ed b y the o c ea nlevel a n d a re rela tively in sen sitive to the Fra ser River flo w (refer to NHC et a l., 2014).This ma p delin ea tes the Fraser River flo o d po ten tia l un der Yea r 2100 c o n ditio n s,assumin g a 1.0 m sea level rise (SLR) a n d a c urren t 500-yea r return perio d flo o deven t. A 500-yea r return perio d flo o d mea n s tha t, o n a vera ge, the flo o d will o c c uro n c e in 500 yea rs a n d tha t there is a o n e-in -500 c ha n c e that the flo o d levels ma ppedc o uld b e equa lled o r exc eeded in a n y o n e yea r (o r that there is a b o ut a o n e-in -10c ha n c e tha t the flo o d level ma pped c o uld b e equa lled o r exc eeded in a perio d o f 50yea rs).The a do pted va lue fo r SLR is b a sed o n guidelin es fro m Ausen c o -Sa n dwell (2011),a n d disc ussio n s a n d rec o mmen da tio n s fro m the pro jec t’s Tec hn ic a l Adviso ry Gro up.A freeb o a rd a llo wa n c e (sa fety fa c to r) o f 0.6 m is in c luded in the flo o d levels sho wn .The flo o d levels a re b a sed o n water surfa c e pro files simulated usin g a o n e-dimen sio n a l hydro dyn a mic mo del develo ped b y NHC (NHC, 2006 a n d NHC, 2008).Iso lin es, sho win g in c remen ta l wa ter levels a c ro ss the c ha n n el a n d flo o dpla in , wereestima ted usin g the mo del. The mo del geo metry was kept c o n sta n t at a ll flo wsa ltho ugh va ria tio n s (sc o ur a n d ero sio n ) ma y o c c ur durin g a flo o d. In the mo del, so medikes a n d ro a dwa ys were ra ised to c o n fin e the flo w. The o n e-dimen sio n a l mo del didn o t simula te water level va ria tio n s perpen dic ula r to flo w. Cha n n el a vulsio n s o rb lo c ka ges were assumed to b e a b sen t. The a c c ura c y o f the simulated flo o d levels islimited b y the relia b ility a n d ma gn itude o f the flo w a n d water level data used fo rc a lib ra tin g the mo del.LiDAR data surveyed in 2013 was used to c rea te a Digita l Elevatio n M o del (DEM ) fo rthe City o f V a n c o uver; the DEM surfa c e was edited to remo ve b uildin gs a n dtempo ra ry fea tures. The ma ps depic t flo o d levels b a sed o n gro un d c o n ditio n s a t thetime o f the surveys. The a c c ura c y o f the lo c a tio n o f a flo o dpla in b o un da ry is limitedb y the a c c ura c y o f the DEM . Cha n ges to the c ha n n el, flo o dpla in , a n d river b a sinrun o ff will a ffec t the flo o d levels a n d ren der site-spec ific in fo rmatio n o b so lete. Lo c a lfea tures suc h as ro a ds, ra ilwa ys o r dikes c a n restric t flo w a n d lo c a lly a ffec t flo o dlevels. Cha n n el o b struc tio n s, lo c a l sto rm wa ter, gro un dwa ter o r trib uta ry strea ms ma ya lso a ffec t flo o d levels. The flo o d ma ppin g do es n o t ta ke lo c a l fea tures in to a c c o un t.A Qua lified Pro fessio n a l must b e c o n sulted fo r site-spec ific en gin eerin g a n a lysis.Flo o din g fro m o ther so urc es, suc h as tsun a mis o r la n dslide gen era ted wa ves, sho uldb e c o n firmed with a ppro pria te ma ps a n d reso urc es.In dustry b est pra c tic es were fo llo wed to gen era te the flo o d ma ps. Ho wever, a c tua lflo o d levels a n d exten ts ma y va ry fro m tho se sho wn a n d No rthwest Hydra ulicCo n sulta n ts Ltd. (NHC) do es n o t a ssume a n y lia b ility fo r suc h va ria tio n s.

Notes:

243 5

1

!(³!(å

!(å

!(å

!(Æc

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ

")ñ ")ñ

")ñ

")ñ

")ñ

!

!

MARINE WAY

BURQUITLAM DRIVE

CHAMPL AINC R ES C EN T

ANCASTER CRESCENT

SE MARINE DRIVE

GLAD

STON

E ST

NANA

IMO

ST

E 64TH AVPO

RTS ID

EDRI

VE

VICTO

RIA

DRIV

E

E KENT AV SOUTH

DUDL

EY S

T

CROM

WEL

L ST

BEAT

RICE

ST

KERR

S T

PRESTONAVKI

NROS

S ST

PRESTWICK DRIVE

BONACCORD DRIVE

HOYLAKE AV

JELL

ICOE

ST

NEWPORT AV

DUFF

ST

RUPE

RTST

HUMM

ST

DUFF

ST

VIVIAN DRIVE

SCARBORO AV

BOBOLINK AV

ROSEMONT DRIVE

E 62ND AV

E 59TH AV

LYNBROOK DRIVELE

ASID

E ST

SCARBORO AV

STIR

LING

ST

HOYLAKE AV

E63

RDAV

FRASERVIEW DRIVE

STIK

INE

PLAC

E

E 63RD AV

E KENT AV NORTH

SOUTHSIDE DRIVE

E KENT AV SOUTH

MAQUINNA DRIVE

JELL

ICOE

ST

ROSEDALE DRIVE

BRIGADOON AV

E KENT AV SOUTH

BONNYVALE AV E 58TH AV

GATIN

EAU P

LACE BLAKE ST

BOBOLINK AV KIN RO S SST

RUMBLE AV

BOBOLINK AV

E 63RD AV

E 58TH AV

CROM

WEL

L ST

ISLAND AV

RIVERWALK AV

HARRISON DRIVE

MUIR

FIELD

DRIVE

ELLIOTTST

ELLI O

TTST

MATHESON CRESCENT

NANA

IMO

ST

JASPER CRESCENT

JASPER CRESCENT

BOUNDARY ROAD

ASHBURN ST

THORNHILL DRIVE

THOR

NHILL

DRI

VE

QUALICUM DRIVE

SPARBROOK CRES CENT

MUNROE CRESCENT

BUTLERST

MARQUETTE CRESCENT

PIERVIEW CRESCENT

BRIGHTWOODPLACE

GLADSTONEST

FRASER RIVER

Lulu Island(RICHMOND)

NOTE: Ea st Fra serla n ds site wa s ra isedpo st-ma ppin g to a c c o mmo da te a first flo o relevatio n o f 4.8m. Flo o d depths sho wn o nma p do n o t reflec t the ra ised la n d eleva tio n .

4.6

4.6

\\van-mainfile\Projects\Projects\300227 CoV Coastal Flood Risk\GIS\300227_MSN_Map_FloodFraser.mxd

300227

17-JUN-2014Coordinate System: NAD 1983 UTM ZONE 10NUnits: METRES

SCALE - 1:5,000

±0 100 200 300 400M

VFOCEngineer GIS Reviewer Job Number

Date

MSN MM

www.n hc web .c o m

Critic a l Struc tures

!(Æc Lib ra ry

!(³Co mmun ity Cen tre/Neighb o urho o d Ho use

!(Ñ Ca re Fa c ility

!(åPub lic Elemen ta ry/Sec o n da ry Sc ho o l

!Y Fire Statio n

Flo o d Depths (c m) In c ludin g Freeb o a rd

0 to 50most houses are dry; walking in moving water or driving ispotentially dangerous; basements and undergroundparking may be flooded, potentially causing evacuation

50 to 100water on ground floor; basements and underground parkingflooded, potentially causing evacuation; electricity failed;vehicles are commonly carried off roadways

100 to 200 ground floor flooded; residents evacuate

200 to 500 first floor and often roof covered by water; residents evacuate

> 500; River first floor and often roof covered by water;residents evacuate

In dia n Reserve Bo un da ryCity Bo un da ryFuture Buildin g Fo o tprin ts (2041)

")ñ Pa rk

Disclaimer:This do c umen t ha s b een prepa red b y No rthwest Hydra ulic Co n sulta n ts Ltd. ina c c o rda n c e with gen era lly a c c epted en gin eerin g a n d geo sc ien c e pra c tic es a n d isin ten ded fo r the exc lusive use a n d b en efit o f the City o f V a n c o uver a n d theira utho rized represen tatives fo r spec ific a pplic a tio n to the Co a sta l Flo o d RiskAssessmen t Pro jec t fo r the City o f V a n c o uver Fra ser River a n d Burra rd In let(in c ludin g Po in t Grey, Kits Po in t, Fa lse Creek, En glish Ba y, Sta n ley Pa rk a n d theIn n er Ha rb o ur) sho relin es. The c o n ten ts o f this do c umen t a re n o t to b e relied upo n o rused, in who le o r in pa rt, b y o r fo r the b en efit o f o thers witho ut spec ific writtena utho riza tio n fro m No rthwest Hydra ulic Co n sulta n ts Ltd. No o ther wa rra n ty,expressed o r implied, is ma de.No rthwest Hydra ulic Co n sulta n ts Ltd. a n d its o ffic ers, direc to rs, emplo yees, a n da gen ts assume n o respo n sib ility fo r the relia n c e upo n this do c umen t o r a n y o f itsc o n ten ts b y a n y pa rties o ther tha n the City o f V a n c o uver.

1.2.3.

Buildin g fo o tprin ts supplied b y City o f V a n c o uver.2013 o rtho pho to supplied b y City o f V a n c o uver. Supplemen ted with 2010 Iko n o ssatellite ima gery fro m Esri a n d Geo Eye.In dex b a sema p fro m Natio n a l Geo gra phic a n d Esri.

Data Sources:

Po n d o r La ke depth unknown

SCENARIO 3 - YEAR 2100, SLR 1 MPROBABILITY OF 1/500

COASTAL FLOOD RISK ASSESSMENTFRASER RIVER FLOOD DEPTHS

INCLUDING FREEBOARD

MAP 5 OF 5

W a ter Level(in c ludin g0.6 mfreeb o a rd)

!W a ter Level -Tha lweg In tersectio n

1.2.

3.4.

NHC et a l. (2014). City o f V a n c o uver Flo o d Risk Assessmen t (Fin a l Repo rt). Repo rtprepa red fo r the City o f V a n c o uver.Ausen c o -Sa n dwell (2011). Clima te Cha n ge Ada pta tio n Guidelin es fo r Sea Dikes a n dCo a sta l Flo o d Ha za rd La n d Use: Guidelin es fo r M a n a gemen t o f Co a sta l Flo o dHa za rd La n d Use. Prepa red b y Ausen c o -Sa n dwell fo r BC M in istry o f En viro n men t.NHC (2008). Fraser River Hydra ulic M o del Upda te (Fin a l Repo rt). Repo rt prepa red fo rthe BC M in istry o f En viro n men t. 31 pp.NHC (2006). Lo wer Fra ser River Hydra ulic M o del Fin a l Repo rt. Prepa red b yNo rthwest Hydra ulic Co n sulta n ts a n d Trito n Co n sulta n ts fo r Fra ser Basin Co un c il.

References:

1.2.

3.4.5.

6.

7.

Flo o d levels were develo ped fo r five c o a sta l flo o d sc en a rio s a s desc rib ed in NHC eta l. (2014).High flo o d levels in this rea c h o f the Fra ser River a re prima rily go vern ed b y the o c ea nlevel a n d a re rela tively in sen sitive to the Fra ser River flo w (refer to NHC et a l., 2014).This ma p delin ea tes the Fraser River flo o d po ten tia l un der Yea r 2100 c o n ditio n s,assumin g a 1.0 m sea level rise (SLR) a n d a c urren t 500-yea r return perio d flo o deven t. A 500-yea r return perio d flo o d mea n s tha t, o n a vera ge, the flo o d will o c c uro n c e in 500 yea rs a n d tha t there is a o n e-in -500 c ha n c e that the flo o d levels ma ppedc o uld b e equa lled o r exc eeded in a n y o n e yea r (o r that there is a b o ut a o n e-in -10c ha n c e tha t the flo o d level ma pped c o uld b e equa lled o r exc eeded in a perio d o f 50yea rs).The a do pted va lue fo r SLR is b a sed o n guidelin es fro m Ausen c o -Sa n dwell (2011),a n d disc ussio n s a n d rec o mmen da tio n s fro m the pro jec t’s Tec hn ic a l Adviso ry Gro up.A freeb o a rd a llo wa n c e (sa fety fa c to r) o f 0.6 m is in c luded in the flo o d levels sho wn .The flo o d levels a re b a sed o n water surfa c e pro files simulated usin g a o n e-dimen sio n a l hydro dyn a mic mo del develo ped b y NHC (NHC, 2006 a n d NHC, 2008).Iso lin es, sho win g in c remen ta l wa ter levels a c ro ss the c ha n n el a n d flo o dpla in , wereestima ted usin g the mo del. The mo del geo metry was kept c o n sta n t at a ll flo wsa ltho ugh va ria tio n s (sc o ur a n d ero sio n ) ma y o c c ur durin g a flo o d. In the mo del, so medikes a n d ro a dwa ys were ra ised to c o n fin e the flo w. The o n e-dimen sio n a l mo del didn o t simula te water level va ria tio n s perpen dic ula r to flo w. Cha n n el a vulsio n s o rb lo c ka ges were assumed to b e a b sen t. The a c c ura c y o f the simulated flo o d levels islimited b y the relia b ility a n d ma gn itude o f the flo w a n d water level data used fo rc a lib ra tin g the mo del.LiDAR data surveyed in 2013 was used to c rea te a Digita l Elevatio n M o del (DEM ) fo rthe City o f V a n c o uver; the DEM surfa c e was edited to remo ve b uildin gs a n dtempo ra ry fea tures. The ma ps depic t flo o d levels b a sed o n gro un d c o n ditio n s a t thetime o f the surveys. The a c c ura c y o f the lo c a tio n o f a flo o dpla in b o un da ry is limitedb y the a c c ura c y o f the DEM . Cha n ges to the c ha n n el, flo o dpla in , a n d river b a sinrun o ff will a ffec t the flo o d levels a n d ren der site-spec ific in fo rmatio n o b so lete. Lo c a lfea tures suc h as ro a ds, ra ilwa ys o r dikes c a n restric t flo w a n d lo c a lly a ffec t flo o dlevels. Cha n n el o b struc tio n s, lo c a l sto rm wa ter, gro un dwa ter o r trib uta ry strea ms ma ya lso a ffec t flo o d levels. The flo o d ma ppin g do es n o t ta ke lo c a l fea tures in to a c c o un t.A Qua lified Pro fessio n a l must b e c o n sulted fo r site-spec ific en gin eerin g a n a lysis.Flo o din g fro m o ther so urc es, suc h as tsun a mis o r la n dslide gen era ted wa ves, sho uldb e c o n firmed with a ppro pria te ma ps a n d reso urc es.In dustry b est pra c tic es were fo llo wed to gen era te the flo o d ma ps. Ho wever, a c tua lflo o d levels a n d exten ts ma y va ry fro m tho se sho wn a n d No rthwest Hydra ulicCo n sulta n ts Ltd. (NHC) do es n o t a ssume a n y lia b ility fo r suc h va ria tio n s.

Notes: