SW4070701_SW Report_20191030

STORMWATER MANAGEMENT PLAN
ECHOTA PHASE IV
WATAUGA CO., NORTH CAROLINA
CHRISTINE BROWN CPSWQ, CPESC
J. MELISKI, PE
�zA0A
Cgill
55 Broad Street
Asheville, North Carolina 28801
828-252-0575
Firm License No.: C-0459

Channel Report
Hydraflow Express Extension for Autodesk0 AutoCADO Civil 3D0 by Autodesk, Inc
<Name> I
Triangular
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 1.00
Slope (%)
= 2.00
N-Value
= 0.035
Calculations
Compute by: Known Q
Known Q (cfs) = 3.28
Elev (ft)
3.00
2.50
2.00
1.50
1.00
0.50
1 2 3
Section
4
Reach (ft)
Thursday, Oct 17 2019
Highlighted
Depth (ft)
= 0.64
Q (cfs)
= 3.280
Area (sqft)
= 1.23
Velocity (ft/s)
= 2.67
Wetted Perim (ft)
= 4.05
Crit Depth, Yc (ft)
= 0.60
Top Width (ft)
= 3.84
EGL (ft)
= 0.75
5 6 7
Depth (ft)
2.00
1.50
1.00
0.50
-0.50
8

Channel Report
Hydraflow Express Extension for Autodesk0 AutoCADO Civil 3DO by Autodesk, Inc
<Name>
Triangular
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 1.00
Slope (%)
= 2.00
N-Value
= 0.035
Calculations
Compute by: Known Q
Known Q (cfs) = 3.95
Elev (ft)
3.00 --7
2.50
2.00
1.50
1.00
0.50
Section
Thursday, Oct 17 2019
Highlighted
Depth (ft)
= 0.69
Q (cfs)
= 3.950
Area (sqft)
= 1.43
Velocity (ft/s)
= 2.77
Wetted Perim (ft)
= 4.36
Crit Depth, Yc (ft)
= 0.65
Top Width (ft)
= 4.14
EGL (ft)
= 0.81
Depth (ft)
2.00
1.50
1.00
0.50
IM@
L -0.50
8
1 2 3
4
Reach (ft)
5 6 7

Channel Report
Hydraflow Express Extension for Autodesk® AutoCADO Civil 3D® by Autodesk, Inc
<Name>
Triangular
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 1.00
Slope (%)
= 8.10
N-Value
= 0.035
Calculations
Compute by: Known Q
Known Q (cfs) = 1.34
Elev (ft)
3.00 --7
2.50
2.00
1.50
0.50
1 2 3
Section
4
Reach (ft)
Thursday, Oct 17 2019
Highlighted
Depth (ft)
= 0.35
Q (cfs)
= 1.340
Area (sqft)
= 0.37
Velocity (ft/s)
= 3.65
Wetted Perim (ft)
= 2.21
Crit Depth, Yc (ft)
= 0.42
Top Width (ft)
= 2.10
EGL (ft)
= 0.56
5 6 7
Depth (ft)
2.00
1.50
1.00
0.50
L -0.50
8

Channel Report
Hydraflow Express Extension for Autodesk0 AutoCADO Civil 3DO by Autodesk, Inc
<Name> ��Al..�. O
Triangular
Side Slopes (z:1)
= 3.00, 3.00
Total Depth (ft)
= 1.00
Invert Elev (ft)
= 1.00
Slope (%)
= 5.27
N-Value
= 0.035
Calculations
Compute by: Known Q
Known Q (cfs) = 0.67
Elev (ft)
3.00 —
2.50
2.00
1.50
1.00
0.50
1 2 3
Section
4
Reach (ft)
Thursday, Oct 17 2019
Highlighted
Depth (ft)
= 0.30
Q (cfs)
= 0.670
Area (sqft)
= 0.27
Velocity (ft/s)
= 2.48
Wetted Perim (ft)
= 1.90
Crit Depth, Yc (ft)
= 0.32
Top Width (ft)
= 1.80
EGL (ft)
= 0.40
5 6 7
Depth (ft)
2.00
1.50
1.00
0.50
M
L -0.50
8

I Fri
mcgill
124019th Street Lane NW
Hickory, NC 28601
ph:828.328.2024 1 fax:[phone]
Project: \� I
Project No.: �� 3 O
Description: S., o A,e Ca 1 C 11 y 0--1 fye
Calculated By: C.Y/ Checked By:
Date: 0 7 Sheet No. of
CA
0I
0

Inlet Report
Hydraflow Express Extension for Autodesk0 AutoCADO Civil 3D0 by Autodesk, Inc. Friday, Oct 18 2019
<Name> C-'rb L\-+ =# 9
Curb Inlet
Calculations
Location
= On grade
Compute by:
Known Q
Curb Length (ft)
= 3.00
Q (cfs)
= 0.60
Throat Height (in)
= 8.00
Grate Area (sqft)
= -0-
Highlighted
Grate Width (ft)
= -0-
Q Total (cfs)
= 0.60
Grate Length (ft)
= -0-
Q Capt (cfs)
= 0.51
Q Bypass (cfs)
= 0.09
Gutter
Depth at Inlet (in)
= 3.62
Slope, Sw (ft/ft)
= 0.330
Efficiency (%)
= 86
Slope, Sx (ft/ft)
= 0.020
Gutter Spread (ft)
= 0.74
Local Depr (in)
= 0.67
Gutter Vel (ft/s)
= 6.55
Gutter Width (ft)
= 2.00
Bypass Spread (ft)
= 0.36
Gutter Slope (%)
= 5.70
Bypass Depth (in)
= 1.42
Gutter n-value
= 0.016
All d--l-s in led
1M

Inlet Report
Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D@ by Autodesk, Inc. Friday, Oct 18 2019
<Name> C 4 r)!�) CU+- --4+ S
Curb Inlet
Calculations
Location
= On grade
Compute by:
Known Q
Curb Length (ft)
= 3.00
Q (cfs)
= 0.67
Throat Height (in)
= 8.00
Grate Area (sqft)
= -0-
Highlighted
Grate Width (ft)
= -0-
Q Total (cfs)
= 0.67
Grate Length (ft)
= -0-
Q Capt (cfs)
= 0.47
Q Bypass (cfs)
= 0.20
Gutter
Depth at Inlet (in)
= 3.30
Slope, Sw (ft/ft)
= 0.330
Efficiency (%)
= 70
Slope, Sx (ft/ft)
= 0.020
Gutter Spread (ft)
= 0.66
Local Depr (in)
= 0.67
Gutter Vel (ft/s)
= 9.21
Gutter Width (ft)
= 2.00
Bypass Spread (ft)
= 0.42
Gutter Slope (%)
= 13.12
Bypass Depth (in)
= 1.67
Gutter n-value
= 0.016
All dimensions,n fed
RM

Inlet Report
Hydraflow Express Extension for Autodesk® AutoCADO Civil 3D(D by Autodesk, Inc. Friday, Oct 18 2019
<Name>
r �o %
Curb Inlet
Calculations
Location
= On grade
Compute by:
Known Q
Curb Length (ft)
= 3.00
Q (cfs)
= 1.34
Throat Height (in)
= 8.00
Grate Area (sqft)
= -0-
Highlighted
Grate Width (ft)
= -0-
Q Total (cfs)
= 1.34
Grate Length (ft)
= -0-
Q Capt (cfs)
= 0.79
Q Bypass (cfs)
= 0.55
Gutter
Depth at Inlet (in)
= 4.22
Slope, Sw (ft/ft)
= 0.330
Efficiency (%)
= 59
Slope, Sx (ft/ft)
= 0.020
Gutter Spread (ft)
= 0.90
Local Depr (in)
= 0.67
Gutter Vel (ft/s)
= 10.11
Gutter Width (ft)
= 2.00
Bypass Spread (ft)
= 0.64
Gutter Slope (%)
= 10.60
Bypass Depth (in)
= 2.54
Gutter n-value
= 0.016
All di—slons in fed

rn
oU
0 N Z
M c5T
O M C
O :3
0 o U
a
O cn co
Z m
o >6
y
07
C
m N
_ N
N
N
O
~O LL
C
C
C C
C
N O
N
C
C@
N
C
C
C
@
G
j
U
O
C
c
N U
NCJ
E
Y
Y
YYY
Y Y
Y
Y
Y Y
Y
Y
Y
Y
Y
Y
y
y EO
0
000
000
O
00
O
O
0
0
00
Q
D D O
CL
0'(jN
C rc`
V
V
orrn
V CD
CD
O(Do
N
c-o
m
7
N
M
or
C O
L)U
N
N
N
y T
C
m
N
d' co
cD
M
N
r
O
Ln
N
O
LL
V'
N
M Q)
7
r
r
M
Ln
t0
O
O
a. U
R
Ln
m
m
N
V 7
M"t
rn
rn rn
N
N
Ln
co
O
N rn
c1'
N
O
m
CO
co
m
N
O
� U
c
y
-
-
O O
(O
co - (D
m
M
m m
O
O
O
O
m
m
c C
o
0
0 0
0
0 0
0
0
0 0
0
0
0
0
0
0
y
O
U
w
7
iC
co
W
co co
co
m co
co
m
co m
m
m
m
co
oo
.0
m
rn
LT
rn rn
rn
rn rn
rn
m
rn (Dm
rn
m
0)m
CD
O
N U
C C
m
O
m
O
M m
0 0
M
ID
M co
Cl CD
co
co
O
M M
O O
M
O
m
CD
m
ID
M
ID
M
CD
M
L.
O
O
O
0 0
O
O O
O
O
O O
O
O
O
O
O
O
C
U
O
U
n
z
cn �O
0 c
c
= Q
c
d v
co
t° a
O
O
O o
0
0 0
o
O
cm)
(D
CD
0
0
0
0
y
F
O
O
0 0
0
0 0
O
0 0
o
O
O
O
O
; LL
O
c0
O
(D 6
co
(D i
6
O
(6c6
(6c
O
A
° a
C
C
m aCD
o
0
0 0
0
0 0
o 0
0
0
0
o
p
o
O• O
N
to
rn M
(D
i- O
r
rn
N
O
V
r
N
dcn
N
d' N
N N
N
rn N
M
N
M
0
0
co
W
41 C .C..
m
M
M M
M
M M
M
M
M M
M
M
M
m
M
m
7 0
O
O
O
O
0 0
O O
0
O
0 0
O O
0
O
O
O
0 0
0 0
O
O
O
O
o
O
O
O
0
O
0
O
O U
a, •�
d
a
a d
a
a a
a
a
a
a
D-
a
a
sUU
U
UUU
U
U
U
U
U
U
U
of
��of
of
PP
Q�
L
L
Q�
ofof
"
Ln (n
O
m
rn
V N
r
N
Ln
O
m
(J
N LL
�
cq O
O
M
N
C
0 u
M co
co
O C)N
N
O
c0
—
j
O y
U a
c —
a U
t
c v Urn
m
rn rn
rn
rn rn
rn
rn
rn rn
rn
rn
rn
rn
rn
rn
y
�j
o
0
0 0
C)
0 0
0
o
c o
0
0
0
0
0
0
A
w
C
of
O
r
r tDO
NM
c0
C)
O
A
CQ
O
O O
N
M
CV N
O
.-
O
Q a
o
0
0 0
Cl
0 C)
0
0
0 C
0
0
0
0
0
0
�
o
v
E
Ln L:
L7
CD
(D MO
c0r0
C)
O
CDy
c0
O
U
0
LOD
M
^
N
coIn
NCof
r
N co
O)
M O)
N
O
m
N
lO0
C
Ln
rn
C)r
(D
(D C
N
Ln 'CM
N
oo
rn
r
(Dco
vi
'i
C
Ln
co
M
M
Ln Ln
m co
Lo
M
LI) Ln
m m
m
co
to
M
n
M m
n
M
V
M
V
M
V
m
V
M
V
co
d
(D
m
co
r
N
C O
W
r
l�)
c0
L
rn
rn
O O
LD
m c
rn
O
e- L7
7
V
Lei
N
In
M
co
N
co
(D (o
co
N O
co
(D
N rn
V
rn
c
O
n
j
rn
r
(O Ln
Ln
Ln m
C
q
m
rn
O
O
rn
rn
U
C
In
M
Ln
M
LO Ln
M M
Ln
M
Ln Lo
m
Ln
In
Ln Ln
Lei
V
Ln
Ln
V
V
M
m
m
m M
M
m
co
m
M
M
d
Q
r
O
C. M
CO CO
M
m
N r
V
Ln
O
N
�i
N
v
(D
r
N M
r
co
L7
(D
r
Q'
r
Ln
J
N
M C
L7
tO r
D)
O
N
M
V
In
(D
r
z
v
U
i Um
U0U
U
UU
U
U
U
U
UU

oopC3)
07
U 2E o
�(o
o
m
� U @
C1 (U
E C
o U
U
U
Z
c
Co �
o �
M U
Q O CT
O— m
U
E c
U 7 0
N Z
0 00
0- -,j J
�
fn
fn
to
fn
N
y
y
fn
y
N
y
y
fn
O
m
m
m
m
m
m
m
co
m
m
m
m
N
cn
UUUUUUUUUUUUU
-74
c
'motmw�wd
NNNwd
0000
r-
H
Ln
LO
In
LO
LO
LO
U')
LOLO
Ln
LO
Lo
j
co
Ce)
-M000OOOrM��
N
Lo.
O
O
LriLiilfil�r'I�f�
Ln
o
Ln
Lq
�
d
C
MNNmNco
—
—
-
NCMNN
N
O
�m
�000�OM000OIq
a)
N
p
V
E
>
M
M
CV
�
Co
r-�
6c6
Z
Ll1
��000DN_,ttir-CoCMd
m—
r-
0—
Lo
M
O
c-
d'
a)
ram-+
Nw
CJ
V
r
M
N
N
M
O
6
6
M
cm
N
N
co
L
Q
o
.-
u)
N
U)
ce)
U)
I-
U)
LLB
Cn
Co
W
!-
w
00
w
CA
w
00
�
U
C
N
c
W
W
W
W
W
W
W
W
W
LL
LL
LL
LL
LL.
LL
LL
LL
LL
Ww
WO
N
W
LL
LL
N
O
LL
co
m
C6
CO
MA
a
cl
•L
L
c-NM't0W
00ma
N-0
(n
Q,
N
w
w
w
0
0
y
w
w
7
•y
N
y
0
!A
y
cof_n
0
N
N
f_n
0_
W
i5
w
U
_)
0
0
G
�
U