City of Delray Beach - Water Level Infrastructure ...
23
www.aptim.com City of Delray Beach Intracoastal Waterway Water Level & Infrastructure Vulnerability Study Submitted to: City of Delray Beach Submitted by: Aptim Environmental & Infrastructure, Inc. Project No. 631233074 October 2018
Transcript of City of Delray Beach - Water Level Infrastructure ...
www.aptim.com
City of Delray Beach Intracoastal Waterway Water Level & Infrastructure Vulnerability Study Submitted to: City of Delray Beach Submitted by: Aptim Environmental & Infrastructure, Inc. Project No. 631233074 October 2018
1 Aptim Environmental & Infrastructure, Inc.
CITY OF DELRAY BEACH INTRACOASTAL WATERWAY
WATER LEVEL & INFRASTRUCTURE VULNERABILITY STUDY
1. EXECUTIVE SUMMARY
In recent years, the City of Delray Beach has experienced more frequent and increased flooding within its coastal communities, streets, parks, and other facilities that border the Intracoastal Waterway, primarily due to seasonal high tide events, commonly referred to as King Tides. Similar to other coastal Florida communities, the City seeks to assess its vulnerability to future seasonal flooding and to identify potential options to protect its infrastructure and citizen’s property, and has begun this work with the 2018 Intracoastal Waterway Water Level & Infrastructure Vulnerability Study.
In support of the City’s goals for this study, Aptim Environmental & Infrastructure, Inc. (APTIM) was retained to review available water level data, analyze return periods of extreme events, and consider sea level rise guidance to determine water level projections for the City’s requested 30-year and 75-year planning horizons. Based on the water level analyses performed in this study, it is recommended that the City use elevation 4.4 feet when planning for infrastructure improvements on a 30-year planning horizon.
Field investigations were performed to catalogue existing conditions of seawalls, stormwater inlets and outlets, and backflow prevention devices along approximately 4 miles of the ICW and the adjoining canals within the City’s study area in early 2018. Analyses of the collected field data were performed to support the City in assessing its vulnerability to future seasonal flooding and to identify options to protect its infrastructure and citizen’s property. To allow for additional analysis, all of the collected data was incorporated into an interactive geodatabase with hyperlinked videos, and observation reports.
The City is primarily vulnerable to coastal flooding due to low or unmaintained seawalls, and low or unprotected stormwater inlets under both private and public ownership. Considering the 30-year planning elevation of 4.4 ft., approximately 85% of waterfront parcels are vulnerable and require seawall raisings to prevent flooding, and 58 public stormwater inlets are vulnerable and unprotected by a backflow prevention device. Through analyses of current conditions and in consultation with City staff, the following recommendations for improving resilience to coastal flooding have been concluded from this study:
Implement seawall repairs and raisings to publically owned seawalls following the developed ranking table.
Systematically install backflow prevention devices, develop standards for maintenance of backflow prevention devices, and monitor for structural or hydraulic decay of the public stormwater system.
Perform public outreach and educate residents about the contributing factors to coastal flooding and develop guidelines for improvements to private seawalls and stormwater systems.
To guide implementation of seawall and stormwater system improvements by private residents, the City may develop ordinances to mandate elevations and timing of improvements to improve resiliency to coastal flooding City-wide. In pursuing a City Guided Implementation method, the City should weigh the benefits of implementing a time specific resiliency goal versus allowing for ongoing sea level rise and recurring storms to trigger improvements.
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NO INLET
APPENDIX D
SEAWALL ELEVATION ANALYSIS
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NOTES:1. DATES OF SURVEY: JANUARY 22 - MAY 22, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. ELEVATIONS ARE IN FEET BASED ON THE NORTH AMERICAN VERTICAL DATUM (NAVD) 1988.4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
SEAWALL ELEVATION (FT., NAVD88)STUDY AREA
PARCELS
<22.0 - 2.52.5 - 3.0 3.9 - 7.9
3.5 - 3.93.0 - 3.5
SE
9th
St
SE
8th
St
OleanderLn
SE
8th
Ct
Seagate Dr
SE
8th
St
SE
7th
St
SE
10t
h S
t
Hib
iscu
s R
d
F ran
k lin
Cl u
b D
r
SE
6th
St
Car
issa
Rd
SE 7th Ave
Seasage Dr
Bau
hini
a R
d
Tam
arin
d R
d
Poi
n set
tia R
d
Mel
aleu
c a R
d
Har
bour
side
Dr
SE 4th Ave
SE 5th Ave
SE 6th Ave
Aza
lea
Rd
Whi
te D
r
S Federal Hwy
Bro
oks
Ln
Lew
is C
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Rd
S Ocean Blvd
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y:
M.L
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c
Subm
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T
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Com
m.
No.
:
631
2330
74
Des
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Dra
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Plot
Sca
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2018
CIT
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GRAPHIC SCALE IN U.S. SURVEY FEET
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£PV3
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NOTES:1. DATES OF SURVEY: JANUARY 22 - MAY 22, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. ELEVATIONS ARE IN FEET BASED ON THE NORTH AMERICAN VERTICAL DATUM (NAVD) 1988.4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
SEAWALL ELEVATION (FT., NAVD88)STUDY AREA
PARCELS
<22.0 - 2.52.5 - 3.0 3.9 - 7.9
3.5 - 3.93.0 - 3.5
Seabreeze Ave
S M
allo
ry C
ir
E A
tlant
ic A
ve
N M
allo
ryC
ir
S Ocean Blvd
NE 7th Ave
NE 6th Ave
NE 5th Ave
E M
allo
ry C
irW
Mal
lory
Cir
SE
1st
St
Seagate Dr
Venetian Dr
SE
5th
St
Gleason St
Seasage Dr
Venetian Dr
Oce
an T
er
SE
3rd
St
E Mallory Cir
Palm Ave
Mira
mar
Dr
SE
2nd
St
SE 5th Ave
SE
4th
St
East Rd
SE
5th
St
SE 6th Ave
Cor
alin
a Ln
Buc
ida
Rd
Cas
uarin
a R
d
Coc
onut
Row
Bay
St
Nas
sau
St
Oce
an T
er
Ingr
aham
Ave
San
dow
ay P
a rk
Mira
mar
Dr
Lang
er W
ay
Bronson AveN
E 1
st S
t
Macfarlane Dr
Marine Way
SE 7th Ave
Palm Sq
Marine Way
Andrews Ave
Che
cked
by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
igne
d by
:
M.L
owie
c
Dra
wn
by:
H
.Vol
lmer
Dat
e:
May
201
8
Plot
Sca
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A
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D
2018
CIT
Y O
F D
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BEA
CH
SEA
WA
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Dat
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APT
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VIR
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Ref
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DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV4
SHEET 4 OF 6
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Palm
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pend
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.mxd
0 150 300
PV-1
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Intracoastal Waterway
2481
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. BO
CA
RAT
ON
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ULE
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#805
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7720
0077
2000
7730
0077
3000
7740
0077
4000
7750
00
NOTES:1. DATES OF SURVEY: JANUARY 22 - MAY 22, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. ELEVATIONS ARE IN FEET BASED ON THE NORTH AMERICAN VERTICAL DATUM (NAVD) 1988.4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
SEAWALL ELEVATION (FT., NAVD88)STUDY AREA
PARCELS
<22.0 - 2.52.5 - 3.0
3.0 - 3.53.5 - 3.93.9 - 7.9
Lain
g S
t
Geo
rge
Bus
h B
lvd
PalmTrl
NE 9thAve
NE 8thAve
NE
4th
St
Harmon Ct
SandpiperLn
Luke Ln
NE
3rd
St
Andrews Ave
Sea Ln
Bea
ch D
r
Har
bor D
r
Ham
mon
d R
dN
E 7
th S
t
Cre
stw
ood
Dr
NE
6th
St
NE
5th
St
NE 7th Ave
NE
7th
Ct N
E 2
nd S
t
San
dow
ay L
n
Bas
in D
r
Thom
as S
t
Seabreeze Ave
Palm Trl
Andrews Ave
Palm Trl
Fisher Ln
Vist
a D
el M
ar D
r N
Sea
spra
y A
ve
Wat
erw
ay L
n
NE
6th
St
NE
1st
Ct
NE 8th Ave
N V
i sta
De l
Mar
Dr
Isla
nd D
r
S V
i sta
Del
Mar
Dr
Che
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by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
igne
d by
:
M.L
owie
c
Dra
wn
by:
H
.Vol
lmer
Dat
e:
May
201
8
Plot
Sca
le:
A
S N
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D
2018
CIT
Y O
F D
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AY
BEA
CH
SEA
WA
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NA
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Des
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Dat
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APT
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VIR
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MEN
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E, IN
C.
Ref
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DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV5
SHEET 5 OF 6
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CH
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HE
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CH
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Palm
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. BO
CA
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964000 964000
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6000
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7000
7780
0077
8000
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NOTES:1. DATES OF SURVEY: JANUARY 22 - MAY 22, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. ELEVATIONS ARE IN FEET BASED ON THE NORTH AMERICAN VERTICAL DATUM (NAVD) 1988.4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
SEAWALL ELEVATION (FT., NAVD88)STUDY AREA
PARCELS
<22.0 - 2.52.5 - 3.0 3.9 - 7.9
3.5 - 3.93.0 - 3.5
EstuaryWay
Estuary Trl
Estuary TrlE
astv
iew
Ave
Estuary Trl
Pel
ica n
Ln
Den
ery
Ln
Palm Trl
Palm Trl
Geo
rge
Bus
h B
lvd
Del
mar
Way
Est
uary
Way
Bon
d W
ay
Old Palm Ln
N Federal Hwy
NE 9th Ave
Estu
ary
Trl
Andrews Ave
Lake Trl
Mc
Kee
Ln
Hid
den
Har
bor D
r
NE 8th Ave
With
ersp
oon
Ln
Drif
twoo
d Ln
dg
S L
ake
Ave
N L
ake
Ave
Del
mar
Way
North
Rd
Alle
n Av
e
Kok
omo
Key
Ln
Che
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by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
igne
d by
:
M.L
owie
c
Dra
wn
by:
H
.Vol
lmer
Dat
e:
May
201
8
Plot
Sca
le:
A
S N
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D
2018
CIT
Y O
F D
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AY
BEA
CH
SEA
WA
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ALL
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NA
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N V
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Des
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Dat
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APT
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VIR
ON
MEN
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AN
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C.
Ref
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DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV6
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Palm
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Intracoastal Waterway
2481
N. W
. BO
CA
RAT
ON
BO
ULE
VAR
D
BO
CA
RAT
ON
, FL
3343
1
PH. (
561)
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X (5
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FL
#805
1
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7810
0078
1000
7820
0078
2000
7830
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NOTES:1. DATES OF SURVEY: JANUARY 22 - MAY 22, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. ELEVATIONS ARE IN FEET BASED ON THE NORTH AMERICAN VERTICAL DATUM (NAVD) 1988.4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
SEAWALL ELEVATION (FT., NAVD88)STUDY AREA
PARCELS
<22.0 - 2.52.5 - 3.0 3.9 - 7.9
3.5 - 3.93.0 - 3.5
APPENDIX E
RAPID SEAWALL ASSESSMENT
Commodo
re Cir
CommodoreCir
AdmiralsWay
Com
mod
ore
Cir
Spa
nish
Trl S
Harbor Cir
Aven
ue F
Admirals Way
Aven
ue G
Bosun Cir
CaptainsWalk
La M
at A
ve
Aven
ue H Tr
opic
Isle
Dr
PelicanPointe Dr
Aven
u e L
Iris
Dr
Frederick Blvd
Jasm
ine
Dr
Spanish Trl
Boone Dr
Jasmine Ct
Spa
nish
CirJasmine Ter
Frederick Blvd
Ensi
gn C
irP
elic
an W
ay
Gar
deni
a D
r
Fern
Dr
Eve
rgre
en D
r
Florida Blvd
Hya
cint
h D
r
S Ocean Blvd
Che
cked
by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
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d by
:
M.L
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c
Dra
wn
by:
H
.Vol
lmer
Dat
e:
May
201
8
Plot
Sca
le:
A
S N
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D
2018
CIT
Y O
F D
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AY
BEA
CH
SEA
WA
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AB
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NA
LYS
ISR
AP
ID S
EA
WA
LL A
SS
ESS
ME
NT
PLA
N V
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Des
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tion
Dat
eN
o.
APT
IMEN
VIR
ON
MEN
TAL
AN
D IN
FRA
STR
UC
TUR
E, IN
C.
NOTES:1. DATES OF SURVEY: MARCH 8 AND 14, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. SEAWALL CLASSIFICATIONS CONSISTENT WITH ASCE UNDERWATER CONDTION ASSESSMENT RATINGS (2011).4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
Ref
eren
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DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
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PV1SHEET 1 OF 6
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BO
CA
RAT
ON
, FL
3343
1
PH. (
561)
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2
FA
X (5
61) 3
91 9
116
C
OA
FL
#805
1
961000
962000
963000 963000
7600
0076
0000
7610
0076
1000
7620
0076
2000
7630
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£
PV-1
PV-2
PV-3
PV-4
PV-5
PV-6
NOT TO SCALE
RAPID STRUCTURAL ASSESSMENT
GOOD
FAIR
SATISFACTORYCRITICAL
SERIOUS
POOR
STUDY AREA
P
P
PUBLICP
S Ocean Blvd
Spanish Trl
Bol
ende
r Dr
Boone Dr
Eve
St
Trop
ic B
lvd
Dus
tyM
iller
Dr
S Federal Hwy
Del
Hav
en D
r
Aven
ue C
Spanish Trl
Spanish TrlBan
yan
Tree
Ln
Be r
mud
a G
a rde
ns R
d
Florida Blvd
Rho
des
Villa
Ave
Dog
woo
d D
r
De l
Har
b our
Dr
McC
lear
y S
t
Alla
man
da D
r
Ban
yan
Dr
Cyp
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Dr
E L
into
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Rev
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M.L
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c
Subm
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by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
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d by
:
M.L
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c
Dra
wn
by:
H
.Vol
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Dat
e:
May
201
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Plot
Sca
le:
A
S N
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D
2018
CIT
Y O
F D
ELR
AY
BEA
CH
SEA
WA
LL V
ULN
ER
AB
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Y A
NA
LYS
ISR
AP
ID S
EA
WA
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SS
ESS
ME
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PLA
N V
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Des
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tion
Dat
eN
o.
APT
IMEN
VIR
ON
MEN
TAL
AN
D IN
FRA
STR
UC
TUR
E, IN
C.
Ref
eren
ce F
iles:
DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV2
SHEET 2 OF 6
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Palm
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PV-3
PV-4
PV-5
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Intracoastal Waterway
2481
N. W
. BO
CA
RAT
ON
BO
ULE
VAR
D
BO
CA
RAT
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, FL
3343
1
PH. (
561)
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2
FA
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61) 3
91 9
116
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OA
FL
#805
1
961000 961000
962000 962000
963000 963000
7640
0076
4000
7650
0076
5000
7660
0076
6000
7670
00
NOTES:1. DATES OF SURVEY: MARCH 8 AND 14, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. SEAWALL CLASSIFICATIONS CONSISTENT WITH ASCE UNDERWATER CONDTION ASSESSMENT RATINGS (2011).4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
RAPID STRUCTURAL ASSESSMENT
GOOD
FAIR
SATISFACTORYCRITICAL
SERIOUS
POOR
STUDY AREA
PP
P
P
PUBLICP
SE
9th
St
SE
8th
St
OleanderLn
SE
8th
Ct
Seagate Dr
SE
8th
St
SE
7th
St
SE
10t
h S
t
Hib
iscu
s R
d
F ran
k lin
Cl u
b D
r
SE
6th
St
Car
issa
Rd
SE 7th Ave
Seasage Dr
Bau
hini
a R
d
Tam
arin
d R
d
Poi
n set
tia R
d
Mel
aleu
c a R
d
Har
bour
side
Dr
SE 4th Ave
SE 5th Ave
SE 6th Ave
Aza
lea
Rd
Whi
te D
r
S Federal Hwy
Bro
oks
Ln
Lew
is C
ove
Rd
S Ocean Blvd
Che
cked
by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
igne
d by
:
M.L
owie
c
Dra
wn
by:
H
.Vol
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Dat
e:
May
201
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Plot
Sca
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A
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D
2018
CIT
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BEA
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SEA
WA
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WA
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Des
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Dat
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APT
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VIR
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TUR
E, IN
C.
Ref
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DRAWING NO.
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GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV3
SHEET 3 OF 6
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Palm
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3123
3074
\Rap
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all A
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dix
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xd
0 150 300
PV-1
PV-2
PV-3
PV-4
PV-5
PV-6
NOT TO SCALE
Intracoastal Waterway
2481
N. W
. BO
CA
RAT
ON
BO
ULE
VAR
D
BO
CA
RAT
ON
, FL
3343
1
PH. (
561)
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X (5
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C
OA
FL
#805
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961000
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963000 963000
7680
0076
8000
7690
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9000
7700
0077
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7710
00
NOTES:1. DATES OF SURVEY: MARCH 8 AND 14, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. SEAWALL CLASSIFICATIONS CONSISTENT WITH ASCE UNDERWATER CONDTION ASSESSMENT RATINGS (2011).4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
RAPID STRUCTURAL ASSESSMENT
GOOD
FAIR
SATISFACTORYCRITICAL
SERIOUS
POOR
STUDY AREA
P
P P PP
P
PUBLICP
Seabreeze Ave
S M
allo
ry C
ir
E A
tlant
ic A
ve
N M
allo
ryC
ir
S Ocean Blvd
NE 7th Ave
NE 6th Ave
NE 5th Ave
E M
allo
ry C
irW
Mal
lory
Cir
SE
1st
St
Seagate Dr
Venetian Dr
SE
5th
St
Gleason St
Seasage Dr
Venetian Dr
Oce
an T
er
SE
3rd
St
E Mallory Cir
Palm Ave
Mira
mar
Dr
SE
2nd
St
SE 5th Ave
SE
4th
St
East Rd
SE
5th
St
SE 6th Ave
Cor
alin
a Ln
Buc
ida
Rd
Cas
uarin
a R
d
Coc
onut
Row
Bay
St
Nas
sau
St
Oce
an T
er
Ingr
aham
Ave
San
dow
ay P
a rk
Mira
mar
Dr
Lang
er W
ay
Bronson AveN
E 1
st S
t
Macfarlane Dr
Marine Way
SE 7th Ave
Palm Sq
Marine Way
Andrews Ave
Che
cked
by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
igne
d by
:
M.L
owie
c
Dra
wn
by:
H
.Vol
lmer
Dat
e:
May
201
8
Plot
Sca
le:
A
S N
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D
2018
CIT
Y O
F D
ELR
AY
BEA
CH
SEA
WA
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ULN
ER
AB
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NA
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ISR
AP
ID S
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WA
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SS
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PLA
N V
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Des
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Dat
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APT
IMEN
VIR
ON
MEN
TAL
AN
D IN
FRA
STR
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TUR
E, IN
C.
Ref
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ce F
iles:
DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV4
SHEET 4 OF 6
MAT
CH
LIN
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HE
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CH
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Doc
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:\Ent
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Palm
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ch\6
3123
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\Rap
id S
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all A
ppen
dix
4.m
xd
0 150 300
PV-1
PV-2
PV-3
PV-4
PV-5
PV-6
NOT TO SCALE
Intracoastal Waterway
2481
N. W
. BO
CA
RAT
ON
BO
ULE
VAR
D
BO
CA
RAT
ON
, FL
3343
1
PH. (
561)
391
-810
2
FA
X (5
61) 3
91 9
116
C
OA
FL
#805
1
962000 962000
963000 963000
7720
0077
2000
7730
0077
3000
7740
0077
4000
7750
00
NOTES:1. DATES OF SURVEY: MARCH 8 AND 14, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. SEAWALL CLASSIFICATIONS CONSISTENT WITH ASCE UNDERWATER CONDTION ASSESSMENT RATINGS (2011).4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
RAPID STRUCTURAL ASSESSMENT
GOOD
FAIR
SATISFACTORYCRITICAL
SERIOUS
POOR
STUDY AREA
P
P
P
P
PUBLICP
Lain
g S
t
Geo
rge
Bus
h B
lvd
PalmTrl
NE 9thAve
NE 8thAve
NE
4th
St
Harmon Ct
SandpiperLn
Luke Ln
NE
3rd
St
Andrews Ave
Sea Ln
Bea
ch D
r
Har
bor D
r
Ham
mon
d R
dN
E 7
th S
t
Cre
stw
ood
Dr
NE
6th
St
NE
5th
St
NE 7th Ave
NE
7th
Ct N
E 2
nd S
t
San
dow
ay L
n
Bas
in D
r
Thom
as S
t
Seabreeze Ave
Palm Trl
Andrews Ave
Palm Trl
Fisher Ln
Vist
a D
el M
ar D
r N
Sea
spra
y A
ve
Wat
erw
ay L
n
NE
6th
St
NE
1st
Ct
NE 8th Ave
N V
i sta
De l
Mar
Dr
Isla
nd D
r
S V
i sta
Del
Mar
Dr
Che
cked
by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
igne
d by
:
M.L
owie
c
Dra
wn
by:
H
.Vol
lmer
Dat
e:
May
201
8
Plot
Sca
le:
A
S N
OTE
D
2018
CIT
Y O
F D
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AY
BEA
CH
SEA
WA
LL V
ULN
ER
AB
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NA
LYS
ISR
AP
ID S
EA
WA
LL A
SS
ESS
ME
NT
PLA
N V
IEW
Des
crip
tion
Dat
eN
o.
APT
IMEN
VIR
ON
MEN
TAL
AN
D IN
FRA
STR
UC
TUR
E, IN
C.
Ref
eren
ce F
iles:
DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV5
SHEET 5 OF 6
MAT
CH
LIN
E S
HE
ET 4
OF
6
MAT
CH
LIN
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HE
ET 6
OF
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Doc
umen
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h: G
:\Ent
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ise\
Palm
_Bea
ch\6
3123
3074
\Rap
id S
eaw
all A
ppen
dix
5.m
xd
0 150 300
PV-1
PV-2
PV-3
PV-4
PV-5
PV-6
NOT TO SCALE
Intracoastal Waterway
2481
N. W
. BO
CA
RAT
ON
BO
ULE
VAR
D
BO
CA
RAT
ON
, FL
3343
1
PH. (
561)
391
-810
2
FA
X (5
61) 3
91 9
116
C
OA
FL
#805
1
962000 962000
963000 963000
964000 964000
7760
0077
6000
7770
0077
7000
7780
0077
8000
7790
00
NOTES:1. DATES OF SURVEY: MARCH 8 AND 14, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. SEAWALL CLASSIFICATIONS CONSISTENT WITH ASCE UNDERWATER CONDTION ASSESSMENT RATINGS (2011).4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
RAPID STRUCTURAL ASSESSMENT
GOOD
FAIR
SATISFACTORYCRITICAL
SERIOUS
POOR
STUDY AREA
P
PP
PP
P
P P
P
P
P
P
P
P
PUBLICP
EstuaryWay
Estuary Trl
Estuary TrlE
astv
iew
Ave
Estuary Trl
Pel
ica n
Ln
Den
ery
Ln
Palm Trl
Palm Trl
Geo
rge
Bus
h B
lvd
Del
mar
Way
Est
uary
Way
Bon
d W
ay
Old Palm Ln
N Federal Hwy
NE 9th Ave
Estu
ary
Trl
Andrews Ave
Lake Trl
Mc
Kee
Ln
Hid
den
Har
bor D
r
NE 8th Ave
With
ersp
oon
Ln
Drif
twoo
d Ln
dg
S L
ake
Ave
N L
ake
Ave
Del
mar
Way
North
Rd
Alle
n Av
eKok
omo
Key
Ln
Che
cked
by:
D
.Man
n
Rev
iew
ed b
y:
M.L
owie
c
Subm
itted
by:
T
.Bre
nner
Com
m.
No.
:
631
2330
74
Des
igne
d by
:
M.L
owie
c
Dra
wn
by:
H
.Vol
lmer
Dat
e:
May
201
8
Plot
Sca
le:
A
S N
OTE
D
2018
CIT
Y O
F D
ELR
AY
BEA
CH
SEA
WA
LL V
ULN
ER
AB
ILIT
Y A
NA
LYS
ISR
AP
ID S
EA
WA
LL A
SS
ESS
ME
NT
PLA
N V
IEW
Des
crip
tion
Dat
eN
o.
APT
IMEN
VIR
ON
MEN
TAL
AN
D IN
FRA
STR
UC
TUR
E, IN
C.
Ref
eren
ce F
iles:
DRAWING NO.
£
GRAPHIC SCALE IN U.S. SURVEY FEET
GRID
£PV6
SHEET 6 OF 6
MAT
CH
LIN
E S
HE
ET 5
OF
6
Doc
umen
t Pat
h: G
:\Ent
erpr
ise\
Palm
_Bea
ch\6
3123
3074
\Rap
id S
eaw
all A
ppen
dix
6.m
xd
0 150 300
PV-1
PV-2
PV-3
PV-4
PV-5
PV-6
NOT TO SCALE
Intracoastal Waterway
2481
N. W
. BO
CA
RAT
ON
BO
ULE
VAR
D
BO
CA
RAT
ON
, FL
3343
1
PH. (
561)
391
-810
2
FA
X (5
61) 3
91 9
116
C
OA
FL
#805
1
962000
963000 963000
964000 964000
7800
0078
0000
7810
0078
1000
7820
0078
2000
7830
00
962000
NOTES:1. DATES OF SURVEY: MARCH 8 AND 14, 2018 2. COORDINATES ARE IN FEET BASED ON THE FLORIDA PLANE COORDINATE SYSTEM, EAST ZONE, NORTH AMERICAN DATUM (NAD) 1983/2011.3. SEAWALL CLASSIFICATIONS CONSISTENT WITH ASCE UNDERWATER CONDTION ASSESSMENT RATINGS (2011).4. AERIAL PHOTOGRAPHY IS THE PALM BEACH COUNTY IMAGE SERVICE, COLLECTED BETWEEN JANUARY 5 AND FEBRUARY 10, 2017.5. PALM BEACH COUNTY PARCELS DOWNLOADED FROM PALM BEACH COUNTY GIS DEPARTMENT.
GOOD
FAIR
SATISFACTORYCRITICAL
SERIOUS
POOR
RAPID STRUCTURAL ASSESSMENT
STUDY AREA
PUBLICP
