SW5200701_Site Calculations_20200708

Famous Chicken 'n Biscuits
at Spring Hope, NC
Owner/Developer:
It's Farm Time, LLC
Contact: Brad Mercer
brad. mercer(cb-becajun.com
252.208.2233
ENGINEERING
801 EAST WASHINGTON STREET P.O. BOX HOS
NASHVILLE, N.C. 27856 PHONE: [phone]
WWW. STOCKSENGINEERING.COM
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SEAL
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Stocks Engineering, P.A.
801 East Washington Street
PO Box 1108
Nashville, NC 27856
PROJECT: Bojangles' at Spring Hope, NC
DATE : July 1, 2020
PAGE :I of 1
Post -Development
Tc<
Area ID
Area (Ac.)
C
110
Q10 (cfs)
5
DI#3
0.74
0.75
6.64
3.69
5
CB#6
0.25
0.90
6.64
1.49
5
CB#4
0.06
0.50
6.64
0.20
5
CB#5
1.90
0.73
6.64
9.21
Post -Development
Tc
Area ID
Area (Ac.)
C
125
Q25 (cfs)
5
DI#3
0.74
0.75
7.45
4.13
5
C13#6
0.25
0.90
7.45
1.68
5
CB#4
0.06
0.50
7.45
0.22
5
CB#5
1.90
0.73
7.45
10.33
10-Year Storm
25-Year Storm
Runoff Computations

Hydraflow Storm Sewers Extension for Autodesk0 AutoCADO Civil 3130 Plan
nutfall
Project File: Road Pipe System.stm
Number of lines: 4 1 Date: 7/1/2020
Storm Sewers 02.00

Page 1
Line
Line ID
Flow
Line
Line
Line
Invert
Invert
Line
HGL
HGL
Minor
HGL
Dns
Junction
No.
rate
Size
shape
length
EL Dn
EL Up
Slope
Down
Up
loss
Junct
Line
Type
(cfs)
(in)
(ft)
(ft)
(ft)
N
(ft)
(ft)
(ft)
(ft)
No.
1
CB#5 to FES#6
16.36
24
Cir
62.000
249.80
251.12
2.129
250.75
252.58
0.71
252.58
End
Curb-
2
CB#4 to CB#5
6.03
24
Cir
32.000
251.32
252.34
3.187
252.58
253.21
n/a
253.21 j
1
Curb-
3
CB#6 to CB#4
1.68
18
Cir
19.000
253.00
255.02
10.632
253.22
255.51
0.18
255.51
2
Curb-
4
DI#3 to CB#4
4.13
24
Cir
56.000
252.54
256.00
6.179
253.21
256.71
n/a
256.71
2
DropGrate
Project File: Road Pipe System.stm
--
Number of lines: 4
Run Date: 7/1/2020
NOTES: Known Qs only ; j - Line contains hyd. jump.
Storm Sewers 02.00

Page 1
Line
Size
Q
Downstream
Len
Upstream
Check
JL
Minor
coeff
loss
Invert
HGL
Depth
Area
Vel
Vel
EGL
Sf
Invert
HGL
Depth
Area
Vel
Vel
EGL Sf
Ave
Enrgy
elev
elev
head
elev
elev
elev
head
elev
Sf
loss
(in)
(cfs)
(ft)
(ft)
(ft)
(sqft)
(ft/s)
(ft)
(ft)
N
(ft)
(ft)
(ft)
(ft)
(sgft)
(ft/s)
(ft)
(ft)
N
N
(ft)
(K)
(ft)
1
24
16.36
249.80
250.75
0.95
1.47
11.13
0.69
251.44
0.000
62.000
251.12
252.58
1.46""
2.45
6.67
0.69
253.27
0.000
0.000
n/a
1.02
0.71
2
24
6.03
251.32
252.58
1.26
1.31
2.90
0.33
252.91
0.000
32.000
252.34
253.21 j
0.87*"
1.31
4.61
0.33
253.54
0.000
0.000
n/a
1.32
0.44
3
18
1.68
253.00
253.22
0.22*
0.16
10.61
0.18
253.40
0.000
19.000
255.02
255.51
0.49""
0.50
3.38
0.18
255.68
0.000
0.000
n/a
1.00
0.18
4
24
4.13
252.54
253.21
0.67
0.92
4.50
0.26
253.47
0.000
56.000
256.00
256.71
0.71 *"
1.00
4.11
0.26
256.98
0.000
0.000
n/a
1.00
n/a
Project File: Road Pipe System.stm
Number of lines: 4
Run Date: 7/1/2020
Notes: " depth assumed; "' Critical depth.; j-Line contains hyd. jump ; c = cir e = ellip b = box
Storm Sewers 02.00

Storm Sewer Profile Proj. file: Road Pipe System.stm
Elev. (ft)
N
V
M LO
271.00
266.00
271.00
266.00
261.00
261.00
256.00
256.00
251.00
251.00
246.00
63%
0 10 20 30 40 50 60 70 80 90 100
HGL EGL Reach (ft)
246.00
110 120
O
ONO
O
o-ow
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to °0 O
O
LJJ N CNO
o
CNN �
.-- M O
��� O
NNN �
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MttO �
M O O
�NM O
NNN M
Www +
ON
O
��
NN
Ww
19.
OOLf - 18" 10
Storm Sewers

Storm Sewer Profile
Proj. file: Road Pipe System.stm
Elev. (ft)
�
O E
N N N
CO
O �
O N N N
oWww
CO E>>
to Ix C S
N
7
E Q S
J
It 'IT
MMV)
O 10NN
M N N N
o Www
co E»
�5 E Es
V
7
C Q
J
0 0
00
0 LbLO
C N N
o Ww
m E�;
U) (if E
273.00
273.00
268.00
268.00
263.00
263.00
258.00
258.00
253.00
— —
— — —
56.000L -
253.00
_ 24"
3.199/6
248.00
248.00
0 10 20 30 40 50 60 70 80 90 100
HGL EGL Reach (ft)
Storm Sewers

•
1pp�
ENGINEERING
W
Rip -Rap Outlet Protection
Pipe # FES #6
Known:
24" RCP
Q25 = 16.36 cfs
V25 = 11.13 ft/s
Min. Required: (Use NCDEQ Table 8.06b)
La = 10'
W = 6'
3do = 6'
dso = 2.5" (Rip Rap Size)
*Use Class B Rip Rap over
Mirafi 140N 18" in depth.

Project:
Location
Date:
Basin ID:
Area Disturbed
Runoff Area
Runoff Coefficient
•
l�
ENGINEERING
Skimmer Sediment Basin
Bojangles' at NC 581, Spring Hope, NC
Spring Hope, NC
15-Jun-20
1
Intensity (10 Year)
Q10=
Basin Volume Calculation:
Volume of Sediment=
Surface Area Calculation:
3.99
Acres
3.99
Acres
0.35
6.64
Inch / Hr
9.27
CFS
3.99 Acres
7,182 CF
X 1,800 CF Sediment / Year
Surface Area = Q10 X 325 SF/CFS
9.27 CFS X 325 SF/CFS
3,014 SF
Sediment Basin Sizing:
105 Length 30 Width
Sediment Basin Volume: 7,875 CF
Sediment Basin Area: 3,150 SF
Weir Design and Velocity Check:
Weir Length= 1 15 Feet
Height of Water over Weir= 1 0.38 Feet
Velocity Check: 1.64 FPS
Skimmer Sizing:
Days to Drain = 3 Days
Skimmer Size = 2 Inches Orifice Size =
2.5 i Depth
1.6 Inches

•
w"M
ENGINEERING
Skimmer Sediment Basin
Project: Bojangles' at NC 581, Spring Hope, NC
Location: Spring Hope, NC
Date: 15-Jun-20
Basin ID: 2
Area Disturbed
Runoff Area
Runoff Coefficient
Intensity (10 Year)
Q10=
Basin Volume Calculation:
Volume of Sediment=
4.83
4.83
0.35
6.64
11.22
4.83 Acres
8,694 CF
Acres
Acres
Inch / Hr
CFS
X 1,800 CF Sediment / Year
Surface Area Calculation:
Surface Area = Q10 X 325 SF/CFS
11.22 CFS X 325 SF/CFS
3,648 SF
Sediment Basin Sizing:
120 Length 30 Width
Sediment Basin Volume: 9,000 CF
Sediment Basin Area: 3,600 SF
Weir Design and Velocity Check:
Weir Length= 1 20 Feet
Height of Water over Weir= 1 0.35 Feet
Velocity Check: 1.59 FPS
Skimmer Sizing:
Days to Drain = 3 Days
Skimmer Size = 2 Inches Orifice Size =
2.5 Depth
1.8 Inches

Channel Report
Hydraflow Express Extension for AutodeskO AutoCADO Civil 3D0 by Autodesk, Inc.
Temporary Diversion #1 - Grassed
Triangular
Side Slopes (z:1)
= 2.00, 2.00
Total Depth (ft)
= 2.00
Invert Elev (ft)
= 255.00
Slope (%)
= 2.00
N-Value
= 0.035
Calculations
Compute by:
Known Q
Known Q (cfs)
= 4.53
Friday, Jun 12 2020
Highlighted
Depth (ft)
= 0.85
Q (cfs)
= 4.530
Area (sqft)
= 1.44
Velocity (ft/s)
= 3.13
Wetted Perim (ft)
= 3.80
Crit Depth, Yc (ft)
= 0.80
Top Width (ft)
= 3.40
EGL (ft)
= 1.00
Elev (ft) Depth (ft)
Section
3.00
258.00
2.50
257.50
2.00
257.00
1.50
256.50
1.00
256.00
0.50
-71
255.50
0.00
255.00
254 50
-0 50
1 2 3 4
5
Reach (ft)
6 7 8
9 10

Channel Report
Hydraf low Express Extension for Autodesk0 AutoCADO Civil 3DO by Autodesk, Inc.
Temporary Diversion #1 - Bare Soil
Triangular
Side Slopes (z:1)
= 2.00, 2.00
Total Depth (ft)
= 2.00
Invert Elev (ft)
= 255.00
Slope (%)
= 2.00
N-Value
= 0.020
Calculations
Compute by:
Known Q
Known Q (cfs)
= 4.53
Friday, Jun 12 2020
Highlighted
Depth (ft)
= 0.69
Q (cfs)
= 4.530
Area (sqft)
= 0.95
Velocity (ft/s)
= 4.76
Wetted Perim (ft)
= 3.09
Crit Depth, Yc (ft)
= 0.80
Top Width (ft)
= 2.76
EGL (ft)
= 1.04
Elev (ft) Section Depth (ft)
3.00
258.00
2.50
257.50
257.00
2.00
1.50
256.50
1.00
256.00
0.50
255.50
0.00
255.00
254 50
-0 50
1 2 3 4
5
Reach (ft)
6 7 8
9 10

Channel Report
Hydraflow Express Extension for Autodesk0 AutoCADO Civil 3D0 by Autodesk, Inc.
Temporary Diversion #2 - Bare Soil
Triangular
Side Slopes (z:1)
= 2.00, 2.00
Total Depth (ft)
= 2.00
Invert Elev (ft)
= 251.00
Slope (%)
= 3.50
N-Value
= 0.020
Calculations
Compute by:
Known Q
Known Q (cfs)
= 11.22
Tuesday, Jun 30 2020
Highlighted
Depth (ft)
= 0.88
Q (cfs)
= 11.22
Area (sqft)
= 1.55
Velocity (ft/s)
= 7.24
Wetted Perim (ft)
= 3.94
Crit Depth, Yc (ft)
= 1.15
Top Width (ft)
= 3.52
EGL (ft)
= 1.70
Elev (ft) Section Depth (ft)
254.00
253.50
3.00
253.00
2.50
252.50
2.00
1.50
252.00
251.50
71
1.00
251.00
0.50
,)r�n tin
0.00
-0 50
1 2 3 4 5
Reach (ft)
6 7
8 9 10

Channel Report
Hydraf low Express Extension for Autodesk0 AutoCADO Civil 31DO by Autodesk, Inc.
Temporary Diversion #2 - Grassed
Triangular
Side Slopes (z:1)
= 2.00, 2.00
Total Depth (ft)
= 2.00
Invert Elev (ft)
= 251.00
Slope (%)
= 3.50
N-Value
= 0.035
Calculations
Compute by:
Known Q
Known Q (cfs)
= 11.22
Tuesday, Jun 30 2020
Highlighted
Depth (ft)
= 1.08
Q (cfs)
= 11.22
Area (sqft)
= 2.33
Velocity (ft/s)
= 4.81
Wetted Perim (ft)
= 4.83
Crit Depth, Yc (ft)
= 1.15
Top Width (ft)
= 4.32
EGL (ft)
= 1.44
Elev (ft) Section Depth (ft)
254.00
253.50
3.00
253.00
2.50
252.50
2.00
252.00
1.50
251.50
1.00
251.00
0.50
250.50
0.00
-0 50
1 2 3 4 5
Reach (ft)
6 7 8 9 10