20001195 Ver 12_Stormwater Site Plans_20100811

CONSTRUCTION PLANS FOR
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S ORMWA ER MANAGEMEN I PLA -I\-'
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INTERNATIONAL AIRPORT
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VICINITY MAP SITE PLAN _
NOT TO SCALE NOT TO SCALE
SHEET INDEX
SHEET # TITLE OF SHEET
1 COVER SHEET
2 OVERALL SITE PLAN
3 BIORETENTION SITE AND DETAILS
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_ ? 029856 HDR Engineering,Inc. 4944 ARKWAY PLAZA BOULEVARD, C—U! r 350
FM•....��• of theCaroiin� 1-e A R_ jTTL, NC 1 M CAROL N 2821 t
GINti„ �, �, .
igloo N.C.B.E.I.S.License Number F-0110
120 S Tryon Street,Suite 14M 1 charlotte,NC 211M NC' LICENSE. NO. C---116 3
Phone:(704)33WOO ww ..talbertandbrig t.c m
Fax:[phone]M

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LEGEND ,"
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EXISTING CONTOUR a
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EXISTING STORM DRAIN 'I I -
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„�•-699—"'' PROPOSED CONTOUR �.��{ Cqp�
70� PROP 100' 50' 0 100' 200' 300' .�0�. •. l�,L , _ 1. f I
i-- PROPOSED INDEX CONTOUR $
_ ENGINEERING & PLANNING CON-SULTANT,
HOR Engineering,Inc. }
PROPOSED CONCRETE PAVEMENT
SCALE IN FEET _ 029$56 _ ofthe Carolinas 4944 PAR A i_A A BOI LE' ,li U, Lll , I)
1"=100' ,cPlNE�� �, .�_ CHARD -L, NORTH CAROLINA 82 17
PROPOSED BITUMINOUS PAVEMENT •y•p ..••K�P�,.�' P I :NE: 704---426 _ 70 FAX: 704- 2 6,_8 8C
�rar.4n �yN i N.C.S.E.L.S.License NundwF-0116
HOC JiAQ p0 10 128 S Tryon Street,Suit 1/00 1 Cluutate,NC NC LICENSE N
Phone:(70M)338-GM 0
Fax:(7")338-OM www_=aiber+fandbr=gh Lc:o

BIO-RETENTION SWALE TABLE
� L W
•...,..,, SURFACE
_R0
>, =",� q — " BIO SWALE ID ELEVATION FEET FEET
■
E1 715.3 300' 38'
4" UNDERDRAIN,
wall ■ -4=� _ LENGTH=0.8(W) A
- r — - - - -- - - -- -- -- - -- - - -- - - -
I
wr4.4
"r
B
-= NOTE 1
n' Ear LIMITS OF MEDIA
. ` rj,0% 1111111 IN IIII --- CONNECT UNDERDRAIN A
LONGITUDINAL
'
TO INLET OR DAYLIGHT UNDERDRAIN
AS SHOWN ON PLANS CLEAN—OUT RISER
Ln
(TYP.
L 4 ELEV
n 716.9' -,
l l 1\
z
{} mry. wRIP o 6. Ems, ;' VIE 10—R ENTION WA
716 W N
n 7 \\
4< ; CLASS 1 RIP RA i \\ NOT TO SCALE 18" W/GEOTEXT(LE i > i
i ; \
L=20i, w=22 NOTES:
1. UNDERDRAIN PIPE OUTSIDE OF MEDIA, AND CLEAN—OUT RISERS TO BE SOLID
7 5. ELEV
' TRANSITION AREA BOUNDARY
h -- - 71s'S �16�s , \\ 6" PIPE. LONGITUDINAL PIPES SHALL BE 6" PERFORATED AND LATERALCO
h - ' ' PIPES SHALL BE 4" PERFORATED. ALL PERFORATED PIPES SHALL HAVE A � ! j V
a `• w. . - � � � \ice 3:1 SLOPE TO BASIN
-__ 130 GRASSED �\ 4„ N Ld L�
�� LEVEL SPREADER
MiMIMUM OF 0. 57 STONE AROUND ALL SIDES.
Sri0 0 < LLJ
2. ALL PIPING WITHIN THE UNDERDRAIN SYSTEM SHALL HAVE A MINIMUM SLOPE iLo g
' F SCHEDULE _ c'
' \ OF 0.5 PERCENT AND SHALL BE CONSTRUCTED DULE 40 `0 E
RF(PE ORATED AND NON PERFORATED) PVC PIPE.
GEC. BIORETENTION BASIN
BOUNDARY
_.. J
730 4 Ty< 0I _ _—.:-
L
� , = 715 3
: rt.
5
-20 WEIR, CLASS 1 RIPRAP 3 4 CLEAN OUT 3
,crc, 1 1
�.` ELEV. = 716.3' RISER W/CAP r '
7
- _... O / CLASS.,_1 RIPRAP
ELEV- W GE XTI LE
_ 5�0
7 — — s
A—,
GRASS
IN SITU SOIL „ ESTABLISHED - IN SITU SOIL
3.5% - - - . C.
-4_ F
,— ;.,
BY SODDING
M 20 GRASSBASIN _ ;... . :.:°
ED BIORETENTtON �
ELEVLEVEL
ELEV -- - 1
S E DE _ -BOUNDARY ---T -1 -, a r. =3 r, - - ---
. 716.3 _.
71 B.B:
t . ,16.7` 716.6 .
_ .
- EL \�:, — 713 5 _ ,
E � .. .
LLN
718.5
ELEV. = 716.0 �'
ri -..
WR NEW
TRANSITION AREA BOUNDARY 20 WEIR, CLASS 1-- RIPRAP
}
' - '_ FILTER FABRIC (AMOCO PROPEX i,
■ — 1 .5' ELEV. = 716.3' ELEV. = 716.3 — \
■ :— � — ,, �' ;- \....-- �..._. .., ,._. - ..__ . . . _.... 4551, MIRAFI 160N, OR APPROVED 4 WASHED SAND _ �;,d
3:1 SLOPE TO BASIN ��\ 6s......PVC PIPEwmwm_ EQUAL) 8" NO. 57 STONE TYP.
M._ „
;,.I N V OUT - _711.80 - ( )
CLASS 1 RIPRAP APRON -'� �-'\�
6 LONGITUDINAL UNDERDRAIN
4" UNDERDRAIN, L2' F18" W/GEOTEXTILE _..--- � ,\\-1� ILL SOIL MEDIA
I L=16', W=18' _ --` ;��(\�\\�.
PERFORATED PIPE 85% SAND
— \i-�� = -- __ 10% FINES
--- — r\1\— 6 LONGITUDINAL UNDERDRAIN 50 ORGANIC
Vol) 3.2%
SECTION A A
B10—RETENTION SWALE
�\ NOT TO SCALE
b
CLASS 1 RIPRAP
_1- = 18" .W/GEOTEXTILE EARTHEN BERM
EARTHEN BER
BIORETENTION SURFACE
BIO—SWALE
TOP ELEV. = 717.0' EARTHEN BERM ELEVATION 715.3
.,•..
TOP WIDTH = 2' TOP ELEV. = 717.0' OVERFLOW
L,
BOTTOM WIDTH` = 6' TOP WIDTH = 2' SILT FENCE
4" CLEAN OUT RISER W CAP
SIDE SLOPE = 2:1 BOTTOM WIDTH ,- 6' / =
SIDE SLOPE - 2:1
21
LJ
-,
TO UNDERDRAIN
COLLECTOR
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FILTER FABRIC J 6" LONGITUDINAL 2' FILL/SOIL MEDIA
UNDERDRAIN GRADE 4 WASHED SAND 85% SAND,
(AMOCO PROPEX 10% FINES,
•" - . . .. F-- - 4551, MIRAFI 160N, TO DAYLIGHT AS 8" N0. 57 STONEIr
5% ORGANIC
3
4 OR APPROVED SHOWN ON PLANS
�-----_.�`�_ . EQUAL GRASS ESTABLISHED
4
--_ ) BY SODDING
SECTION B—B
i .,
B10_RETENTION SWALE
4 4
+ NOT TO SCALE
y )
4
NOTES:
-
4 4 4 4 4 4 1. PERFORATED UNDERDRAIN PIPE SHALL BE WRAPPED WITH FILTER FABRIC.
4 __ --
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ' 4 4 2. DO NOT INSTALL BIO—RETENTION FILTER MEDIA LAYERS AND UNDERDRAIN
LEGEND4 4 4 4 4 4 4 4 SYSTEM UNTIL AREAS DRAINING TO BIO—RETENTION SWALE ARE
STABILIZED. (
EXISTING CONTOUR
Z
— EXISTING STORM DRAIN E
,••�H BAR
99--'� PROPOSED CONTOUR .`��• /��$ x..,, `,
20' 10' 0 20' 40' 60'
PROPOSED INDEX CONTOUR I
EAL FNIGINEERING ' FRI ANNING CONStJLTANTS
Q HDR Engineering,Inc. 4944 PARKWAY �L �� �J I I : ) .
PROPOSED BITUMINOUS PAVEMENT r t � ti
SCALE IN FEET � _ ottheCaroiblas `3HT.
s D"RL FF NORTH CARO'1NA 28217
N.C.B.E.l.8.license Number F-0116
oCJD(o 128 8 Tryon Street.Suite 14001 Charlotte,NC 28202 NC LICENSE NO. C-1 16 3 � 5Phone:[phone]M Ww ..tolbertondbright.cor?
Fax:(704)338-CM