HomeMy WebLinkAbout2023 01 30 Regular 501 - Design and Performance of Stormwater Management Systems - Part 2 Briefing • REGULAR AGENDA ITEM 502
,n m=ared CITY COMMISSION AGENDA I JANUARY 23, 2023 REGULAR MEETING
1959
TITLE
Design and Performance of Stormwater Management Systems - Part 2
Briefing
SUMMARY
Pegasus Engineering, David Hamstra, PE will present the second of a three-
part series on Design and Performance of Stormwater Management Systems.
This presentation provides specific impacts resulting from Hurricane Ian and
the pre-hurricane conditions that contributed to these impacts.
RECOMMENDATION
Staff recommends City Commission to receive the information from the
second presentation in a three-part series on stormwater management
design and potential enhancements and to provide further direction as
needed.
83
GiQ��NGs � s
►�' 3 W
7 o
z7 �° H
A1ID
'1
z
LU
L
W
,n
_ Q
Q N
-' "fJ • � i
CL
. LU I
Q � N
N
CO N
0 =
h •O
Lu E
V o
W
CL
0
z
Q
,zn
V
W
0
W
z
i N
�AlIJ
L^�
(/4-''�)
V
3
0 0
� - o
U
O
U LL-
U
V > y -
O � CL
> > } C
.p s c4 o M
CL CL lO CL Li CL
CD
00
N7
Z
0
D p
� Q Z
WV
W
Q O
u
z
Q
r-
00
� M -
M
> p L& n m a c
N
M
(�
d N yO"S
co
- \� �X,
cCU
as f
O
�4 N
N
O
W
�3
00
00
Z U m m
LLI
W Q E K
i
r
L T�y re
pz
y
L
r'
f
a
i
n�tea-
-
e
f� � r
if X l�
r t
K } �
i
� f
• � !'yrJ'fl T f. �.
_
1 W
•
i
00
H
ul
H
� y
W �
u
Q
Q �
= O
V O
o "
W Q
= Z
H Q
W
H
Q
th
0
W's
rn
E
CO) \,,_ a-J,_t IIlmnysny�-��
'Pa
cn
•
•
QNG3.
W
Z
3 co
AlIJ
U
� � O
N � �
O
3 —
o �
o �
V � � U
.0
ja
O
} o o -0
U U U U
Q Q Q Q Q Q S
Q��NGS
Q �a
W
� 3 �
Z
�A11J'
�'o,
0
0e cn/6
oe
N
9
s
N I I P,
ol 6
z
0��'6
l
�0
O 6 �
6 �
0,
i�
z06
9
c� a Obi c a)
o
C LL L
e�0-
w 0e, 6
C
l
e�0z l'6
0�l'6 ■
_ 6
�O1-1
6
ze '6
LL Oe/
O s
��6
6
e moa
= a (e
O 6
��0a i6
00 0 0 0 0 0 0 0 0 0 0 0 0 0 0
O O O O O O O O O O O O O O O O 6
0 co N N N O Co �O V N O CO -O V N O
�� (sayoui)uoi}o}idiOOJd AIio(3 OAi}olnuauan:)
QNG3.
W 0
F ;
Z �
AlIJ
p �
O •p p
U `f' V U
ry
.� z
o oQ �
o 'N � � o �
o
'i V)
CL
p O
S
H ,O Q) Q Ln 'O
� Ln
Ln �
Z
a o o 'o 00 � •�
Eo E U � op
o t 4-- � _ p
� � •`r' U � c 0 O o �
U .cn � N E Dc
ry =)Zn n O
O
— V o0 000
U -C D 0 O
Q f— F--
Q U
W � �
F ;
Z �
�AlIJ
1
U
(/) • • •
a • .. -
L • .. • • -
U O
.} -
U
Q N
0 0
OU LL
c •
C O. • • •
CA
� Uaj
0 U
U Q
CL H O
0 0 0 0 0 0 0 .. -
4� a
s z
H � } U
•O a0 0 - - - ..
\W\ �
/ 6L
0 • Ln • • •
.O N • • • • • • • • •
3
_
Ln
ja - - - - - - - - - •
L
.. •
0
._ z0 �
LO
0 Z
W Q
H
Q W
V Q
� U
z �
o �
O =
O �
� m
QNG3.
m M
z �
AlIJ
bb
a
H
lE
H
W
LL Lo
•� O
O •O N Q
= cn O CN O O
p C)) LL-
C14
L-N +--
_O
'i O
NN O � � O N 4J OUB
O CD O O Olie
O N O
EN
V � � U °' �
~ 4) p a O
O j O O O N
0
QNcs,
w �
f ;
z �
AlIJ
}
A
A
H _
lE
H
W
5LL
•� O
O •O N Q
N O O
p
_O
NN O � � O N 4J OUB
O CDlie
u 09
O O O O N O
0
QNcs,
m 4'
f ;
z �
AlIJ•
r•
ILcc
low
i
v
cc
-C o
c
V
N
N
e �
V
H
W
� O
00
O
U
NCD
•� -
O4- LL- CN 0 Q
011
lie I C14
V O c _
o0 O i
E N E N •U 4) N
L H � U N U O N � v 0 � � �
� _ X � � �
E c 4-
Ln
O o03 Q .
t/�
QNcs,
w p
f ;
z �
AlIJ
H
W
75
O Q �
° � •� o o -4-
70
N O O N U U U
oC-4 NO
Q � •O •� QU N � ON � �
-�— I� O
O 0 N ,cn I I I I li li
V } Q Qc) N 'Il- N
•Q Q 3 N N N N N
i
N -i- 4- 70 O
W O O E O
� � 0000
•U Q X 0 0 0 0 0
N CN L � C 4 U-)
N
0 Q
0
0
LL�
c9 e
of
v'a -
�3
A
a
N N N N N N N N N N N N N
Q
N a H H H H M H C H•N H N H Hm H•N•N H
a � W 6 " V C.N-I 1nO a.m.m mm I�l1T IOC N lD lNflM
�.�/ N" ¢ � 10 V Rf ci rlmN lD N Np TT TN NN
LL' O�"- • NNNNNNf� N NNN NNNNNN
QS a .'".S.^.......mmnn ed edW E y Nw N • me
Q LL r T N�E-I iT�Oa �O T W N W
W N� - ' C�d 2W dN 7H mN N3~ OpT
C -
O m1 =D E N Y U W L YO•.i N
• A N N m N N Y N C N L L C m N L N L m
" ' «`moi`Ae..aN •N N fp R OM 6 R 6 L
�' W£ _ < �.LO, :O•-IHvvv CJ C NNN NN NDN++d 'v
Z� Ld '" "«��"�=oo� Sa�Yoaom •Nv •+o ca m➢
$'^ „"'^,."`m U a O O O•.i E L O L L O O O L O N q Y«
/ �� A E � e Y 3 {✓�d N'-I'-I.-1 u Y1 d 0 9 d a O 2�3 d E d
Q- .U.•i N NNCO1 .NO�3 NU �QU
1 1 1 1
• •
• • 1
lE
Ln
LU
1
• • • = •
1
• • • • •
• • • • • ' ' • • • •
• • •% • • • •
o Lti 4 ,1 • Lo
1
• • • • • Ln
lie 01
1 • • 1 <
• Ln • • �
• •
• •
• • 1
• • • •
LU • • • 1
•
• 1 •
• 1 1
•
• 0 • 1 • • 1 •
0
c v
o v
J -
u o
v
v I
u o Q
u m V
i
d O
fA
N
M N
L L- O Y
QQ N J
i
Q t>
V LL _
s
d g
rN
iI, O
• t`C li_'iI �
N
zr
N
O
ti
C
o v
N v J 7-FlFrL
m o v 00 .
> o v o _p
a
v
v Q 00
rn
O. O N E y �'
{{b
CU
a
.L O Y �
fn Q N
i 0 M fJ
+d+ V �
-- �,
Qv
U J
� g
O
h
—L - w
zs
M
O
0
N
a a
r o
0 0
� Y as
o V
J
a�o
U!
S/
T
/ 4
N
m
• _ r\Sn//1 IIS
U!
U
0
x
N
LO
o M
O Y z N
> C
p Q O
� L
• o 0 0 0 0 0
r'
0 0 0 0 w y
O
t c U7 � t U7
O
� L O O O
• r c` fM V h
•
Q�INGS
Q �a
W " r
N
r
L
J
V .F
y
'"
Q��NGS
Q �a
m N
i ; N
�A11J'
3- •_-yam'
A y
c
4 O
� - O
M
off
V
l
pil"ll 0
o
Off
o
VVyyC�:
1.1
a
41
1
Q�,NGS
Q �a
m M
N
�A11J'
i• �M
h
4 IX
sz— r'
Al
L LU
i
' _ O
4 l
7
O
O
N
44 l a�
4O -0 L4-
0 -0
a
O �
-0 Lj= N x �
N
O Q � '�
QNG3.
W L0
N
AlIJ
N O
Se
a� o O
V -C
Cv
o w = >
m -C L O N
_ O -c- E
O
+- D
(:)7
_IlC O N
41 >
.N O
�-
U > > O
C-4 N
� o
� Cq
° � Ov
QO U �
t/�
0
H
a �
7
� a
a �
' o
v � s
2
❑ O
u J
u a a�
� Q i
r N
Y
T y �
r T
U
y 0
T, m
co T ,.
v
U �
• 0 �
Y
U!
N
Y
N v
Q
U! p
H
y
0
Q) Il M ^ V <o N00 r-400
Q Q rn �o Ln rn oo ti M O rn M O
z z o r o o ry ni oo r; Ln ry
Q Q
v v M M ry 00 in 00 M oo in M
C C oo V Nc- NO N N
O O mT
N N
to c-I Q1 I� N M V V Il 00 N 00
M O to C 1 ry 00 M M M I- 00
Il N 00 Ql c-I ry O M c l ry M to Ln
c-I M ry M V ry ry ry M M ry ry
O cl O O c-i O Ol cl
n n n n I n n n n
n n n n n n n n
n n n n n n n n
0 O O > O
O N 0 > O Co
O � II Q i 3 i m i i m
N 0 '� O > O N 0A N O N 0A
? O Q p ate.+ •� ate.+ O ate.+ C
9- m (0 N O 2 O 9- O ? O Q
L N = N -O 0A Z N Z O Z N
cn w Z v u l Z ai
Y Y Y Y
N N Y Y Y Y N N
� � Y Y Y Y Y � � � � 2 p
N N N N N N N N N u u
N N N N N N N N N N N O O
(7 (D
0 (9 (7 (9 (9 O O O O
N ajO
CO CO
• �I
r-4M V Ln l0 00 m O r-4M
c-I c-I c-I m
6�
IJ
W
7�
V/
W
CD
V W •�✓
DooO •�
LL. cnOc'� �
3 a � �
� � �'
W W
N
CD
Q H CL . ° CNQL
Cr,
a o
O oN � IL LU
N