SWG010035_Plansheet - Grading/Drainage Plan_20211122

DocuSign Envelope ID: 64851 B58-COD1-4F12-ABD4-C1 E9659860FE
\ \ \
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John t
\ \ \ \
\
-290- - - -
x 291.64CL
EXISTING CONTOUR
EXISTING SPOT ELEVATION
rn
COU 1
I \
^I \
\ \ \
o
\ I
/ \
X 290.51
FINISH GRADE SPOT ELEVATION
I
\\ \ \ \ \
290
FINISH GRADE CONTOUR
1532
1550
I I I I
\
D
LIMITS OF DISTURBED AREA (11.1 ACRES)
�sVllle
7sX % I I
I
/ I C \ \
xx
TEMPORARY SILT FENCE
RSIONTION TER
DIVERSION
BME FRAME TYP.)
(TEMPORARY
TEMPORARY ROCK CHECK DAM
564
/ \\
\\\
1565--
I
Curve
Radius
Length
Chord
Chord Bear.
C1
25.00'
47.34'
40.58'
S 25°43'34" W
C2
25.00'
21.03'
20.41'
N 75°56'06" W
C3
50.00'
67.31'
62.34'
S 89°35'48" W
C4
50.00'
46.26'
44.63'
S 24°31'46" W
C5
50.00'
79.94'
71.69'
S 47°46'31" E
C6
50.00'
47.69'
45.90'
N 59°06'08" E
C7
25.00'
21.03'
20.41'
N 55°52'32" E
C8
25.00'
30.60'
28.72'
S 64°57'55" E
Site
2 3 3
ICWITY MAP I I I I I I \
Not to Scale
00 \ \ RIP RAP d50=6",
S MIN. DEPTH=18"
PERMANENT SWALE "A"
07,
�� 1 NTS "STRAW W NET"
_ 7 � \ TEMP. SWALE LINER
Setback Line / / / \\\ 2 As SHOWN 2
I I I ^ I o \ see Table 1
PER
N / f / ( / PERMANENT SWALE "B"\SE6E PROJECT
J\ . I I I / / NTS SPECS
I o o\° RAIN/EA/R/ E9, / \ I \J I • \ I I I I / / /
(BERMUDA)
v�\ D I SWALE CALCULATION TABLE
AC/ \ TEMP dIVERSIONI
BERM S SHOWN TYP. J I J I \ \ ✓ ; o
Course
Bearing
Distance
L1
S
28*29'14"
E
54.62'
L2
S
29°39'15"
E
54.12'
L3
S
30°01'47"
E
55.07'
L4
S
29°47'52"
E
54.31'
L5
S
31 °02'59"
E
53.92'
L6
S
31 °06'30"
E
52.92'
L7
S
31 *08'10"
E
53.76'
L8
S
29°04'38"
E
93.92'
L9
S
29°48'46"
E
57.75'
L10
N
30*16'47"
W
43.61'
L11
N
30*16'52"
W
57.71'
L12
N
29°54'03"
W
12.59'
L13
N
29°54'03"
W
33.24'
L14
N
30°05'36"
W
44.69'
L15
N
28°31'06"
W
27.62'
L16
N
28°31'06"
W
24.88'
L17
N
25°52'31 "
W
48.57'
L18
S
66*11'20"
E
45.71'
LOT
Tc(min)
I
(in/hr)
Q10(CFS)
SWALE SLOPE
n
NORMAL DEPTH
(FT)
VELOCITY
(FT/S)
SHEAR STRESS
REQUIRED (PSF)
SHEAR STRESS
PROVIDED (PSF)
SWALE TYPE
3/4
5
7.2
1 30.6
3.0%
0.03
0.53
5.0
0.99
1.45
B
\ \ \ \ W
PIN: 0691-64-1385.000
PROPERTY IS ZONED RA-30
Harnett County 26.62 AC. (1,159,567 SF) TOTAL IN SUBDIVISION
\ Minimum Building
TAESMSHSWN TMPCE \ / Setback Requirements AREA IN WATERSHED: 109,103SF (2.51 AC.)
\ / x
\ TEMPORARY KIM R BASIN/ 1 w BAFFLE$ / % \ RA-20R, RA-20M, RA-30 & RA-40
\ \ \ \ / (SE PER E DETEru
N POND AS T MP. S #MER IN) / / I (,I� / Y� / \ + \ \ /
\ - - I / D.A.=11. AC. / Setba L I e \ /W PROJECT AREA NOT INCLUDING WATERSHED:
\ \ \"ioiiiiiiiiiiiiii1114 FRONT.' 35' from R
\ TOTAL RAIE AREA=0 AC.1'e/Ta b I e \ \ ' / REAR: 25'
/Q10�3)(7. IN/HR) 1.0AC.)=45.4C S / / \ x / /%SIDE.• 10 24.11 AC. (1,050,464 SF)
0,700 F o CORNER LOT SIDE.' 20'
\000,
VO REQ'-1,800C /AC*(11.5AC)=� / / \
\ SIRFACE AREA R D=325SF/CFS (45.4C )=14 755SF x �\
DEPTH 2 I ` / \ \` / / \/ _ / IMPERVIOUS AREA CALCULATIONS:
Q / / / /I ,7DE SLOP S - 7 DAY S ABILIZATION TIME FRAME TYP.) 1' \ / /TEMP*
""'� ° \
/ / I \ \ / --MAX 24� IMPERVIOUS
TOP W=90', T P L=180, D= S FACE AR PROVIDED=16,200SF ....... .. / BtVERSION • ��
\ /VOL PROVI ED=30,283CF \ .'.'.'.'.'.' '.'.'.'.'..... /� BERM AS S
_ - - \ 0. I / l /WEIR WIDT(120' / / I I J \ - TYP. \ �\ 37S / / 1,050,464SF*0.24=252,111SF MAX IMPERVIOUS AREA
� \ / / SKIMMER SIZE: E DI / / / // \ \2 /
/ SKIM ORIFICE DIAM� R-2.5" � / \ � � TWO ROWS OF SILT
\ O I / / / / ;DEIWTERING TIME: 3.1 DAYS �% t ROADWAY AREA: 13,165SF
I : CLEAN BASIN w EN 50% FULL DURING CONSTRUCTION. WHEN \ \ \ ( 3 1 ' p FENCE;AND TEMP. ROCKCIO\ 1 STREAM AREAS ARF STABLE�GNNST ER SIGN AND PERMIS ON HAS \.'''' / Q� CHEC#C DAM IN EX. DITCH 2 LOTS @ MAXIMUM 80,000SF/LOT: 160,000SF
\ / I / / / / / EEN OBTNNED FR0N1 NCDEQ REMOVE TEMP. BASIN, INSTAL€RMANE \ / \ w
\ \ / / I / / GRADES, AND SEED BALL DISTl�2BED AREAS PER SEED SPECS. \ / �EW RIP RAP SWALE "A"
I \ I I / / \ \ �. -� SEE DETAIL
TOTAL IMPERVIOUS BY DESIGN: 173,165SF (16.5%)
\ I / _ I / / I \ ---
_ I / / / I _ _ �/
- - / + \ \ ............ . ` . . Cy6 2/ A ci- NO WETLANDS EXIST ON SITE
_ TEMPFENCE SSIIOW���Setback Line/ D RAI NSA AEA_
/
\
\......\. _�� / see Table TEMP RY
{�:::
a I \ TO /
I \ \ \ \ \ CO TRUCTION
AI I / I A +\ \ \ 21 6� AC . \ \ �T / .� ' \ �NTRAN � /
'Cy
\ \ \ \.. s� ..
I \ 1 I I \ \o - - �7`5
rm
I \ o \ 9 Prgp. \ \ \ \ \ TEMP SILT-f CE - . / / / /S 7 9 5
A / \ \ I \ WaI A$ SHO\TYP.
x x x x x
\ ..-..-..-..-..-.� -� / / 79 \
\ -
ANEW RIP RAP SWALE "A„
SEE DETAIL
etbcr Lines
\ ALL \ \ \ \ \ \ `x \ _ / j ✓ % / / '� - \ \ \ CD I
&�Cble
-TEMPt3i[T F NEE
-AS SHOW P. / \ MSIL \ \ <\ \Ff n
ASS W TYP. \
pro
O
C
Approximate Iocatt o
6" HX. H
arnett ouner Line. <
\ \ / \ y tcA \
o, \ A roxim a to wa t�r� d / I \ f
�\ a��o\ CD+ \ \istrict limit line
\/5o � \ (c) \
Ij
\ o°xi� �Vot l a watershed district
Q1 \ \ \ Q
\ \ \ ape Fear Rker-Dunn TEMP SILT FE CE
%%, - - AS SHOWN TY r
o \ Watershed District IV-P. - - -C�- /� / = 1 - _ - -
I III
WORK/GRADING/CONSXUCTION TO TAKE L„ \ 5 CP
PLACE WITHIN WATERS��6 D AREA O / /
\ � \ (109103SF/2.51AC. (- � �� - \- _ _ _ I
\ \ \ RAI NNG E AREA \ \ 1pl \EYED - _ _ -
_.���„„, �������������������� ,SUR Y.•
2.9 "AC. --Nillill IS TAN IL' & SOQI A TES)
\ - . • PrOess/on al L �n d Sur, eyor, A. C 0831
/ \ - 42 03 (Total) I I I I / 98 ost D pot /Streolt, P.I 0. B& 730, Angier, N.C. 27501
N 35°0 7 W \ \ \ \ - �.._ '55 W 16 --\y o�: ?
\ \ \ \ \ _ - - "42 >' / -� \ -� I I I / / / Ph/ ne 19- 39-21133 Fax: 919 6\ -2602
\\ / 2 7 , 8 8 \ \ - \ / Sydney A. , Pa / e /
\ \ \ \ eeBook
d Bk 3668, Page 856 - I / I / / / / Ci P Ar H 1 C I SCALE
Plat Cabinet 'F'; Slide 38 \
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( IIy FELT )
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