SW4211101_Plansheet C-6.00 - Proposed Drainage Area_20211109

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487.11'
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ACQUISITION:
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oA \ 3892 OLD FLAT ROCK RD
I V \ \ PIN: 7-3501
DB. 3238238, PG. 3842
ACQUISITION: // A� ZONING: AG
FUTURE R.O.W m \ 6
1o,84ot SF USE: VACANT
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462.56' � !, ��` � / \ / %
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ACQUISITION:
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3705 OLD FLAT ROCK RD
PIN: 6878-26-2452
Hydraflow Storm Sewers Extension for Autodesk® Civil 3D® Plan
� �i / •i y / �� / / Y I -4 ` a / C) DB. 00, PG. 00
ZONING: AG Storm Sewer Tabulation
�xi _, t�\1 / Q' J� USE: SFD
W
40 6
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FLA"D878--2510
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NG:AG552" ZONI
Plbk 6878 06 0488- USE. VACAr
tB. 32 .8 RG. 38,36 / / �' / /, / / r/� Z ,
ZONJING: RS 20 \ / /
USE-SFDI _ / /'/ _ .. S62
j
Station
Len
Drng Area
Rnoff
coeff
Area x C
Tc
Rain
(1)
Total
flow
Cap
full
Vel
Pipe
Invert Elev
HGL Elev
Grnd / Rim Elev
Line ID
Line
To
Incr
Total
Incr
Total
Inlet
Syst
Size
Slope
Dn
Up
Dn
Up
Dn
Up
Line
(ft)
(ac)
(ac)
(C)
(min)
(min)
(in/hr)
(cfs)
(cfs)
(ft/s)
(in)
(%)
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
1
End
164.177
1.63
9.37
0.65
1.06
6.09
10.0
12.1
5.2
31.65
41.73
7.37
30
1.04
915.30
917.00
917.51
918.91
918.62
923.47
STP-1
2
1
44.857
7.23
7.74
0.65
4.70
5.03
10.0
11.9
5.2
26.26
43.30
7.25
30
1.11
917.20
917.70
918.91
919.45
923.47
923.63
STP-2
3
2
122.175
0.51
0.51
0.65
0.33
0.33
10.0
10.0
5.6
1.85
17.26
2.79
18
2.70
918.70
922.00
919.45
922.51
923.63
925.69
STP-3
4
End
284.744
0.00
2.34
0.65
0.00
1.52
10.0
11.4
5.3
8.09
22.83
4.13
24
1.02
929.40
932.30
930.91
933.31
938.25
944.77
STP-4
5
4
150.496
0.99
2.34
0,65
0.64
1.52
10.0
10A
5.5
8.36
2Z58
5.89
24
1.00
932.50
934.00
933.34
935.03
944.77
940.50
STP-5
6
5
40.597
1.35
1.35
0.65
0.88
0.88
10.0
10.0
5.6
4.90
25.10
4.15
24
1.23
934.20
934.70
935.03
935.48
940.50
941.16
STP-6
7
End
60.725
1.89
1.89
0.65
1.23
1.23
10.0
10.0
5.6
6.86
11.27
4.87
18
1.15
918.00
918.70
919.26
919.71
920.15
920.50
STP-7
\ $ F
s
Inlet Report
r
N \ STP-G 30.55 Line Inlet ID Q = Q Q Q Junc Curb Inlet Grate Inlet
�7 V
No CIA carry capt Byp Type
3* 508 E Ht L Area L
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// y QF \ aor S `V 8�1 RROV�, IMN Y & GHRISTINE /
PIN"
D8.02M1 � PG.R3664RM,
�720
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USE: SFD
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/.
/
/ N
l
% / / MI MI AROCKK RD
D
LINVIL .
N/F o37100F
2 PIN: 878 06-6085....
6321 L , Rl 'f� ARD // _ ..DB", 2069, PG. 1119
E RD ZO,NIN-G: AG -
PIN: 6868-95-9446 mm. USE: SFD
DB. 00, PG. 00
ZONING: RS-20 0
USE: SFD
�e� a
a
11 �iLt=� lt=� X=m
Page 1
Gutter Inlet Byp
Line
So W Sw Sx In Depth Spread Depth Spread Depr No
(ft/ft) (ft) (ft/ft) (ftfft) (ft) (ft) (ft) (ft) (in)
1
YI-1
4.51
0.00
4.51
0.00
Genr
0.0
0.00
0.00
0.00
0.00
Sag
2.00
0.050
0.020
0.000
0,30
12.00
0.30
12.00
0.0
Off
2
YI-2
20.01
0.00
20.01
0.00
Genr
0.0
0.00
0.00
0.00
0.00
Sag
2.00
0.050
0.020
0.000
0.30
12.00
0.30
12.00
0.0
Off
3
YI-3
1.41
0.00
1.41
0.00
Genr
0.0
0.00
0.00
0.00
0.00
Sag
2.00
0.050
0.020
0.000
0.30
12.00
0.30
12.00
0.0
Off
4
STMH-4
0.00
0.00
0.00
0.00
MH
0.0
0.00
0.00
0.00
0.00
Sag
0.00
0.000
0.000
0.000
0.00
0.00
0.00
0.00
0.0
Off
5
YI-5
2.74
0.00
2.74
0.00
Genr
0.0
0.00
0.00
0.00
0.00
Sag
2.00
0.050
0.020
0.000
0.30
12.00
0.30
12.00
0.0
Off
6
YI-6
3.74
0.00
3.74
0.00
Genr
0.0
0.00
0.00
0.00
0.00
Sag
2.00
0.050
0.020
0.000
0.30
12.00
0.30
12.00
0.0
Off
7
HEADWALL
5.23
0.00
0.00
5.23
None
0.0
0.00
0.00
0.00
0.00
Sag
0.00
0.000
0.000
0.000
0.00
0.00
0.00
0.00
0.0
ff
STORM DRAINAGE DESIGN CALCULATION NOTES:
1. THESE CALCULATIONS WERE CREATED USING HYDRAFLOW FOR STORM SEWERS EXTENSION PROVIDED
WITH CIVIL 3D RELEASE 2019.
2. DESIGN STORM EVENT = 10-YR.
3. INLET GUTTER SPREAD CALCULATION BASED ON INTENSITY OFTHE 2-YR STORM EVENT
4. IF THERE ARE ANY VARIATIONS IN STORM DRAINAGE BETWEEN THESE CHARTS AND THE PLANS, THE
CONTRACTOR SHALL CONTACT GREEN MOUNTAIN ENGINEERING BEFORE ORDERING MATERIALS
GREEN
MOUNTAIN
ENGINEERING, PLLC
7A WENDY CT
GREENSBORO, NC 27409
Tel: [phone]
CERTIFICATE #P-0826
www.greenmountainengineers.com
SEALS:
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J//1/N1t1111141�1�\�
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APPLICANT/DEVELOPER:
WBY4, INC
7349 W. FRIENDLY AVE., STE.H
GREENSBORO, NC 27410
ATTN: WILL YEARNS
OFFICE: 336.202.8514
EMAIL: [e-mail]
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SITE AREA: 34.1 f ACRES
PARCEL ID: 6878-07-7067
DESIGNED BY JDY
CHECKED BY: VCT
DATE: 2021.10.22
PROJECT: 20-066
REVISIONS:
UI� I PRO k-M
��o btio�
BEFORE YOU DIG!
CALL 811 N.C. ONE -CALL CENTER
IT'S THE LAW!
SHEET TITLE:
STORMWATER
CALCULATIONS
SCALE: 1 " = 100'
SHEET NO.:
C-6,00