SW4220301_Design Calculations_20220524 (2)

1 50 100 200 411
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6'
'
20' PAVEMENT
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SHOULDER
SHOULDER
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1" PER FT. 1/4" PER FT.
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10" ABC
1 SLOPE
2" SF9.5B
AVERAGE RATE: 220 lbs./SY.
ALL CONSTRUCTION TO BE TO N.C. D.O.T.
STANDARDS AND SPECIFICATIONS.
ABC
1.1
RESIDENTIAL
CONTRACTOR TO LOCATE ALL UTILITIES
ROAD
N.T.S.
PRIOR TO CONSTRUCTION.
NOTE: SEE PLAN VIEW FOR SIDEWALK LOCATION.
SITE DATA:
DUNSTON, RANDALL SCOTT
PIN:6920-92-8000
D.B. 3606 P.G. 4245
TOTAL AREA: 16.9 AC a
AREA IN LOTS: 13.21 AC
AREA IN COMMON AREA: 1.51 AC (8.93%)
AREA IN R/W: 2.24 AC
LENGTH OF ROAD: 1,886' +/-
PAVEMENT/SIDEWALK TO LAND: 7.38%
ZONING:
EXISTING ZONING: AG
'
PROPOSED ZONING: RS20-S
U
SHILOH CHURCH RDDEVELOPMENT
STANDARDS:
Ze�'
MINIMUM LOT SIZE: 20,000 SQ.FT.
MINIMUM LOT WIDTH: 95'
FRONT SETBACK: 30'
4
1
I / ) I ( \ ) - SIDE SETBACK: 10 Z
/ /- - I \ II 1 / / I ( / I I I 1 l \p \ I ` I \ l I 1 ``\ \\\ \� �` % -\ \ \�` REAR SETBACK: 30' O
/ / / \ 1 \ I 1 \ I \ J \ 1 ( 1 1 \ \ I ) > I) 1 \ \\\1\\\� � �� //�\���\��,, Q
/ / - I 1 ) I \ I I \ \ J / / 1 \ ) l / / // / / J / J I I �' LOT COUNT: 26
/ / l ( \ 1 I / / / /// / 1� j // I ° \� �/ DENSITY = 1.53 UNITS / AC
/ / 1 ) I / / // // // / // / " ✓- Jr U`
\ / /) / I / \ \ \ ) I I/ I I \ / - J _ / / l I I I I // / /�/i /_i/// // -_/✓ y�, \ \ WATERSHED DATA:
/ \ / \ i r 1 I I I ( I ) - - - J I I I \\\ \\ \\ \\,/ // �i� - - - ^� - ` �\ \ \ WATERSHED: ROAKOKE RIVER BASIN VICINITY MAP l 1 / ( - I \ ( r �i/i - - �� \\\\ \ \ WATERSHED CLASSIFICATION: C
/ J -, - - \ \ f I I \ I / / '- - \ - / I I I \\ \ \ I i / / /// ,- \ _ - \ \ \ SOILS TYPE: CiB, CoA, FaC, FaD, FcC2, PcF2 111=20001
/ / \ \ I / I I I I I l / / - ` - ` / % / I I I )\ \\ I\ )l � / ri/ /- �-- � \ \\ \ \ \ \ AVERAGE SLOPE: 10.5%
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�✓- :!, -- / /</ri/ //� \ \ \ \ \\\ \ GENERAL NOTES:
//1 � ; )i/// g�� /// �e0 \\ \ \ \ \ \ \ \ \ \� \ `� \ \ FLOOD CERTIFICATION:
^ - - / .' - \ \ \ \ \ \ \ I \ 1. THIS MAP DOES NOT MEET G.S. 47-30 AND IS NOT FOR
~ "\ 1 / �i///�%/� // \ \ \ \ \ \ \\ 1 THE UNDERSIGNED HEREBY CERTIFIES TO THE BEST OF HIS
_-� / // /aNv/- // \ \ \N \\ � \ \ RECORDING OR CONVEYANCE.
�-� ) 7/ � jf\<ix����//, ^ - v /_ \ \ \ \ ` \ I \ \ \1 c� ` KNOWLEDGE AND BE4LIEF THE LOCATION OF THE SUBJECT
1 �/ /� ��J2 � _-� _ ` i \ \ \ \ 1 \ 1 \ \ \ \ \\ \o \ \ \ PROPERTY HAS BEEN CHECKED AGAINST AREA FEMA/FIRM MAPS 2. THIS MAP IS SUBJECT TO ANY AND ALL EASEMENTS, RIGHT OF
J J / , ,� �� \ �'' \ - \ \ I \ ) \ 1 I t _ AND INFORMATION PROVIDED BY THE DEPARTMENT OF HOMELAND WAYS, AND AGREEMENTS NOT VISIBLE OR APPARENT AT THE
/ //j / J\ j%i -/ s \ -� \ \ MCALEER, \ I ) --�
/ //��✓ �// \Karl oN\ \ / , ) I % ) \ \ \ ( V \ SECURITY AND FINDS THAT: TIME OF THE SURVEY.
��%/// �� \ \ \ MCALEERONN\ \ ( \ I / / r \ \ \ \ ti \
/ "SPA / W/ 6930-0 240E \ `
//�.� i////�r \ / \ Die zv,7 PG:\7s4 l ) 1 �\ / - / / I 1 \ \ \ \ \ \ \ ( ) THE SUBJECT PROPERTY IS LOCATED IN A SPECIAL FLOOD 3. THE SURVEYOR HAS NOT PERFORMED A TITLE SEARCH,
'l/� l� /jj� _- \ f - = \ \ \ zoyED: AG ; I I / / J / J �� J J ) f \\ - 1 \ \ \ \ \\ HAZARD AREA AS DETERMINED BY FEMA/FIRM FLOOD MAPS. FIRM THEREFORE , THIS MAP IS SUBJECT TO ANY AND ALL FACTS AN
%i/� - \ - \ - \ / / / MAP PANEL:
//// /_ - \ =\ \ \ )�(\ \ I 1 1 ( / J �� � ✓ J lf� \ '�\ \ �� \` \\ \ \ \\ ACCURATE TITLE SEARCH MAY DISCLOSE.
///� - - - - \\ \\ - l 1 J \ J �/-- �/e__ � ��L � � \ \ \ _ \\ \ \ \ (X) THE SUBJECT PROPERTY IS NOT LOCATED IN A SPECIAL 4. PROPERTY BOUNDARY INFORMATION AND FIELD SURVEY
( - - � � \ \ \ \- r � / � cz - \\ � � � \ \ \ � � ^ �\ - \\ \ \ \ \ FLOOD HAZARD AREA AS DETERMINED BY FEMA/FIRM FLOOD
// // - _ \ \ \ \ \ L i /^ ��1 \X` _ -\ \ l \ \ \ \ \ - - \ � \ \\ ` - � ~' TOPOGRAPHY PROVIDED BY ACCURATE SURVEYING, PLLC.
/ I �� \ \ \ \ c ,-\ ) \) f \ \ ) ) f \ - �\ \ - - - �' MAPS. FIRM MAP PANELS: 3710692000J (JANUARY 2, 2009) &
1( �� s°3s'1o"e77s.a6\ i ` - - \ \ `- = f ^ / ` \ \ 7- _ 3710693000J JANUARY 2, 200E .
II / -- \ I / / \ \ ) (I, ✓, \ � 1 / J \ / - f - �� _ ( ) 5. ALL CONSTRUCTION TO BE COMPLETED TO THE MOST RECENT
J 1 \ ^ \ \ 'n \, ti r -\ / 1/ / - - - =- _- FORSYTH COUNTY, NCDOT & NCDEQ, STANDARD AND
/ - \ 1 FES 200 1 \_ \ v \ \ a ) � \ \ _tee - - ;� THE SUBJECT PROPERTY IS LOCATED IN AN AREA WHICH HAS
\ ` ti - \ � \ + % � - L \ \ Z �� \ / / - _ /I ( ) SPECIFICATIONS.
\ \ / l / - FES 300 \ \ \ \ / \ � \ \ 1 ^ ^ - \ ,- - (I - - - - - NOT BEEN MAPPED AS THE FLOOD AREAS BY HOMELAND
_ \ /\ \ \�\\ 1 / \ \ ) � \\ - _ t = \ 1\ \\` l - - �� - - - -,SECURITY. 6. EXISTING WATER LINES INDICATED HERE ARE BASED ON 811
j -` \ \ \ \ \ )- 4 1 ` 1 / lip \ \ \\ G�301 -� \ \✓ �\ r j / \ L1 (/ / / \ \ \�\�\� UNDERGROUND LOCATES. EXACT DEPTH IS UNKNOWN.
/ \ \ \ \\ \ \ \ \�9p\ \/ s / / �<- \ \ ��-/ \ \\`�J// / � f �\ \ \ _�\ ��\ \ 7. A SOILS EVALUATION OF THE PROPERTY WAS PERFORMED ON
\\,� \\ LIMITS OF FIELD ✓ � - - sz \ \\ \ I'� \� - \ \ \ \\\\ \ \ `^ FEBRUARY 11, 2021 BY JUST SOILS53, PLLC. SEPTIC FIELD
`I TOPOGRAPHY / \ \ \ \ INFORMATION SHOWN IS APPROXIMATE.
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STORM DRAINAGE CALCULATIONS
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Upstream
Node
Downstream
Node
Drainage Area
(Acres)
Total Area
(Acres)
Runoff
Coef.
Rainfall
Intensity
(in/hr)
Flowto
Inlet
(cfs)
Total
Flow
(cfs)
Diameter
(in)
PIPE
MATERIAL
Slope
(%)
Pipe
Length
(ft)
Average
Velocity
(fps)
Full Flow
Velocity
(fps)
Full
Flow
(cfs)
Maximum
Flow(cfs)
Upstream
HGL(ft)
Downstream
HGL(ft)
Upstream
Rim Elev
(ft)
Downstream
Rim Elev(ft)
Upstream
Pipe Invert
(ft)
Downstream
Pipe Invert
(ft)
GI 101
FES 100
0.26
5.08
0.50
5.67
0.74
10.90
24.00
RCP
3.00
32.97
10.67
12.47
39.18
42.15
780.96
779.97
788.00
782.00
780.24
779.25
GI102
G1101
0.29
4.82
0.50
5.67
0.83
10.22
24.00
RCP
9.00
80.12
15.55
21.60
67.87
73.01
790.52
783.31
800.00
788.00
790.00
782.79
GI103
G1102
0.06
4.53
0.65
5.67
0.20
9.46
24.00
CASP
20.00
70.88
12.67
16.75
52.61
56.59
807.75
793.57
818.46
800.00
807.18
793.00
GI104
G1103
0.19
4.47
0.65
5.67
9.01
9.26
24.00
RCP
1.00
36.05
6.84
7.20
22.62
24.34
811.54
811.18
817.50
818.46
810.65
810.29
GI105
G1104
4.28
4.28
0.55
5.67
13.34
5.05
24.00
RCP
1.00
44.81
3.97
7.20
22.62
24.34
812.09
811.77
815.60
817.50
811.30
810.85
GI 201
FES 200
0.31
1.96
0.65
5.67
1.14
4.33
15.00
RCP
9.00
147.83
12.71
15.79
19.38
20.85
807.71
794.40
811.37
0.00
807.30
794.00
GI202
G1201
1.65
1.65
0.60
5.67
5.61
3.29
15.00
RCP
1.00
29.13
4.23
5.26
6.46
6.95
808.52
808.29
811.10
811.37
807.79
807.50
GI 301
FES 300
0.12
1.76
0.80
5.67
1.00
5.77
15.00
RCP
5.00
27.03
11.11
11.77
14.44
15.54
777.90
776.55
786.10
777.25
777.35
776.00
GI304
G1301
0.12
1.64
0.80
5.67
2.31
4.85
15.00
RCP
10.00
198.20
13.63
16.65
20.43
21.97
799.73
779.92
806.00
786.10
799.32
779.50
GI305
G1304
1.52
1.52
0.55
5.67
4.73
2.98
15.00
RCP
1.00
37.74
5.16
5.26
6.46
6.95
802.73
802.35
806.13
806.00
802.13
801.75
GI 401
FES 400
0.22
5.92
0.80
5.67
4.73
18.00
24.00
RCP
3.00
113.48
12.20
12.47
39.18
42.15
789.45
786.05
797.80
787.00
788.50
785.10
GI402
G1401
1.09
5.70
0.60
5.67
4.13
14.75
24.00
RCP
1.00
32.67
7.67
7.20
22.62
24.34
791.73
791.40
797.75
797.80
790.55
790.22
G1402A
G1402
0.10
1.51
0.55
5.67
0.31
4.31
15.00
RCP
1.00
30.00
4.70
5.70
7.00
7.53
792.44
792.21
801.59
797.75
791.60
791.30
GI403
GI402A
0.48
1.41
0.55
5.67
2.23
4.00
15.00
RCP
10.00
179.54
13.67
18.03
22.13
23.80
815.35
797.40
822.00
801.59
814.99
797.04
GI404
G1403
0.93
0.93
0.55
5.67
2.91
2.18
15.00
RCP
1.00
81.16
1.90
5.70
7.00
7.53
817.02
816.96
819.00
822.00
816.00
815.19
GI407
G1402
1.64
1.64
0.60
5.67
5.59
3.28
15.00
RCP
2.15
185.26
7.01
7.72
9.47
10.19
798.17
794.18
801.66
797.75
797.66
793.68
GI405
G1402
1.30
1.45
0.55
5.67
4.04
4.41
15.00
RCP
1.00
57.12
5.66
5.26
6.46
6.95
793.56
792.99
797.30
797.75
792.80
792.23
GI406
G1405
OAS
0.15
0.80
5.67
2.02
1.70
15.00
RCP
1.00
30.31
2.79
5.26
6.46
6.95
793.82
793.80
797.30
797.30
793.30
793.00
GI 501
FES 500
0.2E
13.24
0.90
5.67
1.47
38.04
30.00
RCP
1.00
20.68
9.49
8.36
41.02
44.12
775.61
775.40
783.43
776.00
773.71
773.50
Y1503
G1501
12.4E
12.4E
0.50
5.67
35.41
35.41
30.00
RCP
1.00
49.97
7.21
8.36
41.02
44.12
777.09
776.72
777.50
783.43
774.32
773.82
GI502
G1501
0.46
0.46
0.65
5.67
1.69
1.47
15.00
RCP
10.00
47.02
9.67
16.65
20.43
21.97
782.31
777.61
786.30
783.43
782.08
777.38
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PRELIMINARY - NOT FOR CONSTRUCTION

PRELIMINARY - NOT FOR CONSTRUCTION

LIMITS OF FIELD
--
\ TOPOGRAPHY
30
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GI201
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BEACH, JAMESA
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FES 400' / / ZONEa G
GI 40.
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GI 407 w \\ \ \ \ / \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
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TOPOGRAPHY
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SHILOH CHURCH RD
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PIN: 69 0-91-48d6 I / �+���
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DITCH CALCULATIONS / / \ \ `-- \- I f / ^I\/ ` \,- , \ _---- - ■
Low Density
Worksheet
SWALE
NO.
Impervious
Area
AC
Pervious
Area
AREA
I
(10)
C
Q
(10)
BOTTOM
WIDTH
LT
SS
RT
SS
SLOPE
LINING
n
DEPTH
VEL
SHEAR
STRESS
WP
A
TYPE
MATERIAL
1
GI 103
0.033
0.027
0.06
5.67
0.65
0.22
0
3 : 1
3 : 1
4.50%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.02
5.49
0.06
0.1
0A
2
GI 104
0.063
0.127
0.19
5.67
0.65
0.70
0
3 : 1
3 : 1
4.50%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.05
5.49
0.13
0.3
0.1
3
GI 201
0.141
0.169
0.31
1 5.67
0.65
1 1.14
0
1 3 : 1
3 : 1
2.35%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.10
3.97
0.14
1 0.6
0.3
4
GI 202
0.279
1.371
1.65
5.67
0.6
5.61
0
3 : 1
3 : 1
2.35%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.47
3.97
0.69
3.0
1.4
5
GI 301
0.132
0.114
0.25
5.67
0.8
1.12
0
3 : 1
3 : 1
9.39%
PERMANENT
EXCLESIOR - CURLEX II/GRASS
0.035
0.05
7.93
0.29
0.3
0.2
6
GI 304
0.072
0.168
0.24
5.67
0.8
1.09
0
3 : 1
3 : 1
2.35%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.09
3.97
0.13
0.6
0.3
7
GI 305
0.207
1.313
1.52
5.67
0.55
4.74
0
3 : 1
3 : 1
2.35%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.40
3.97
0.59
2.5
1.2
8
GI 401
0.115
0.105
0.22
5.67
0.8
1.00
0
3 : 1
3 : 1
1.00%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.13
2.59
0.08
0.8
0.4
9
GI 402
0.204
0.886
1.09
5.67
0.6
3.71
0
3 : 1
3 : 1
1.00%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.48
2,59
0.30
3.0
1.4
10
GI 403
0.000
0.480
0.48
5.67
0.55
1.50
0
3 : 1
3 : 1
2.00%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.14
3.66
0.17
0.9
0.4
11
GI 404
0.000
0.930
0.93
5.67
0.55
2.90
0
3 : 1
3 : 1
2.00%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.27
3.66
0.33
1.7
0.8
12
GI 407
0.206
1.434
1.64
5.67
0.6
5.58
0
3 : 1
3 : 1
2.35%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.47
3.97
0.69
3.0
1.4
13
GI 405
0.247
1.053
1.3
5.67
0.55
4.05
0
3 : 1
3 : 1
1.00%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0A35
0.52
2.59
0.32
3.3
1.6
14
GI 406
0.065
0.085
0.15
5.67
0.8
0.68
0
3 : 1
3 : 1
1.00%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.09
2.59
0.06
0.6
0.3
15
YI 503
0.121
12.369
12.49
5.67
0.5
35.41
8
3 : 1
3 : 1
6.45%
PERMANENT
EXCLESIOR - CURLEX I/GRASS
0.035
0.48
6.64
1.95
11.1
5.3
16
GI 502
0.122
0.338
0.46
5.67
10.65,
1.70
0
3 : 1
3 : 1
9.10%
PERMANENT
EXCLESIOR - CURLEX II/GRASS
0,0351
0.07
7.81
0.41
0.5
0.2
17
1
1 0.103
0.097
02
1 5.67
10.65
1 0.74
0
3 : 1
3 : 11
9.10%
PERMANENT
I EXCLESIOR - CURLEX II/GRASS
1 O.0351
0.03
17.81
0.19
0.2
0.1
i
50' RAN
y
BEFORE YOU DIG!
CONTACT ONE -CALL CENTER
/- 6' 20' PAVEMENT
5'
SHOULDER ' 1
1SHOULDER 2• 2' 5' -
1" PER FT. 1A" PER FT.
SIDEWAL
" PER FT. 2%
10" ABC j
3:1 SLOPE
2" SF9.5B
AVERAGE RATE: 220 Ibs.lsy.
ALL CONSTRUCTION TO BE TO N.C.D.O.T.
STANDARDS AND SPECIFICATIONS.
ABC 1:1
CONTRACTOR TO LOCATE ALL UTILITIES RESIDENTIAL ROAD
N.T.S.
PRIOR TO CONSTRUCTION.
NOTE: SEE PLAN VIEW FOR SIDEWALK LOCATION.
40 0 20 40
ill =40'
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CHECKED BY: RB
DATE: 01 /31 /2022
PROJECT NO.: 04019.001
REF. NO.: -
SCALE: 1" = 40'
SEAL
027436
GIN
/111111III
SHEET
3 OF 3
PRELIMINARY - NOT FOR CONSTRUCTION