SW3230605_Plansheet - SCM Detail_20240129

101
INSTALL METAL TRASH RACK WITH in Lnti
100YR-24HR ELEV= 593.21 . a) co
\ \ \ \ �„ ( - - - - - - - - - - - - - - - - - - - - - - - - - - - - - HINGES FOR MAINTENANCE ACCESS.
_ _ _ _ 50YR-24HR ELEV= 592.99 _ _ _ _ _ _ _ _ _ _
BYO'EM�RGE��YS'PIM�JAY_ / RACK TO HAVE 4" OPENINGS BETWEEN o\ \ 25YR-24HR ELEV= 592.79 U)
605— \ BARS (RUST RESISTANT MATERIALS) WE�EV.5 ;0 �/ / - - - - - - - - - - - - - - - - - - - - a�
\ - - - - 10YR-24HR ELEV=592.33- - - - - - - - - - � � �
CLASS 1 RIPRAP APRON L
La=14, - STRUCTURE TOP
_ _ ' \ ELEV. 592.50 STRUCTURE TOP � o
\ \ \ / \ \ \ \ \ W-16 / ELEV. 592.50 �
- - POP.SA TER \ ° PRECAST CONCRETEto p
AEA=700SF ( Id50-_6" J / - - - - �YR-24HR ELEV
STRUCTURE Q L
- - \ 5 / /L� 1' RECTANGULAR ° V RECTANGULAR WEIR INSIDE DIMENSIONS 5'X 5'
- 9- \ \TOI�ELEV.=58�OD. WEIR (NCDOT STD 840.45) m U N 11 / INV. 590.30 a� a) N
60 \ \ \ 592 o
INV. 590.30 ° STEPS PER NCDOT 6"WALL THICKNESS a) N
\ j \ \ ` STD. 840.66 GROUND ELEV. AT c U
\ \ s \ \ 58J \ s / CONTROL STRUCTURE j Lu nz
° ° ° vU
1 000 ( ...._ \ \\ 9�\ I s I FES 2 � DESIGN VOLUME ELEV= 590.28 ELEV. 589.00 0
i ° \ CARPED \:' :. : _. \ \ \ I 1 �( - - - - - - - - - - - - - - - - - - - - - - -
\ \ I o I I GROUND ELEV. AT CONTROL STRUCTURE ° TOP OF FILTER a) o ca
\ Eon
LEAN�OUT(Tl(P) \ \ \ I ELEV. 589.00 ELEV. 589.00 ° E C) U
a 6" PVC UNDER III III III I I I
ob
DRAIN PIPE III III
INV= 586.50 III- - ° III III
C
A I °N R °
6" PVC UNDER v N.''� °°°°°°°°°aOl
DRAIN PIPE p °° °°
AMERICAN a2
24" RCP ° ° INV= 586.50 e a ENGINEERING a z
INV- 585.80 ° FLOW m a ASSOCIATES & o
ANTI-SEEPC�LL S \ °oSOC 388AST°Q�P®
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�° \ \ \ I J / / a o J ° '�� 9T °° °°° O
OUTLET C ROL STRUCTURE
/ \ o SEEDET LT SSHEET ° ®®r®uio�e►►®®`24" RCP @ FLOW— �Asi®�; OF Avg
' f / ° ° ° °
/ INV= 585.80
KIPRAP OERN�
T9P ELEV.59b.00 •CN CA
f SEDI(ME TATIPN /� �
� I // 7' X 7' X 1' FRONT VIEW 7' X 7' X 1' � .� �-
/ /kHPMBEf� / / / / / I / / 1 ANTI-FLOTATION BLOCK ANTI-FLOTATION BLOCK52340
SIDE VIEW _ • a SEAL
i
106 CONTROL STRUCTURE DETAIL ; � . !Q
9 `90 / t" l / rn �� p I / NOT TO SCALE.
B M P MAINTENANCE
2 / / AND ACCE
EASEME N 2.00'
/ /r P.SED�MEN TIONB R \\ / I / CREST OF 10'RIPRAP NOTE:WHEN CONSTRUCTED WITH EARTHEN WALLS/EMBANKMENTS,
REA'=1, SF / \ \ / / l / r y ( l l / ��SPILLWAY ELEV=590.00' FILTER FABRIC SHOULD BE USED TO LINE THE BOTTOM AND SIDE
BOT OM L'EV.- / / / �� / I ( ELEV=590.00— SLOPES OF THE STRUCTURES BEFORE INSTALLATION OF THE 3"LAYER OF CLEAN,#2 WASHSTONE/RIPRAP
/ / Q` / \ ( / / / C CLASS RIPRAP AORO'N UNDERDRAIN SYSTEM AND FILTER MEDIA. (NO FINES)OVER SAND FILTER MEDIA
La I _
/ f =III=III=III=11I— 2
/RB7A1NIN�WALL(� THERS� 1 / / / / / r , / ;EO 6, // / I / \ SEDIMENTATION =III=III=III=III=III- 1 SAND FILTER I I I I HORSURFACE 111=
/ / 1 I CHAMBER I I—I I—I I I—I I I—III—III _
f / ` d5 =6 / ) I I I III DEBRIS SCREEN
105 J / / i / / � , , � ,� z III—III—III=III=III=III=III ;— — I-
/ =1 11= I
(PERMEABLE FILTER FABRIC)
\ 11=III=III=III=III=III=III=III=III=1
-589.00SAND BED
O ELEV- — — — — — — — — — — - -
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ASTM C-33 MEDIUM
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AGGREGATE CONCRETE SAND
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RIPRAP BERM DETAIL -
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PERMEABLE FILTER FABRIC
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10 MAI ENANCE
6"GRAVEL LAYER
ACCESS � \/ �
13.5"THICK
y / CLASS B RIPRAP FILTER FABRIC
/r / / / J / I TOPELEVO 595.00 0_
I F BERM
J / / I
MAX.SLOPE 4:1 N
Lu
1� // // i/ / �// / / l\ I/ // / / 3 BOTTOM SPILLWAY ELEV=593.50 3 PERFORATED 6"PVC PIPE(AASHTO M 252) Lu
20' (3/8"PERFORATIONS,4 HOLES PER RADIAL ROW,
p , 1 / / /� / t / / EMERGENCY SPILLWAY DETAIL ROWS SPACED 12"O.C.ALONG ENTIRE LENGTH OF PIPE) �
C2 -JB ` I h / \ J LATERAL SPACING AT MAX.10'O.C.) Q
NOT TO SCALE. NATIVE BOTTOM TO BE SCARIFIED 0
i
AND NOT COMPACTED
VIE c;
_ SAND FILTER MEDIA SECTION
l / 100
� / STIPULATION FOR REUSE
/H /�\\ — — — — � l l Ln /�( / / NOT TO SCALE. THIS DRAWING WAS PREPARED FOR USE
/ _ �1 to 5 I y x \ / MAINTENANCE SCHEDULE CON THE SPECIFIC
CONTEMPORANEOUSLY NAMED
IHEREON,
_ A - - - v s \ _ — / / A \ WITH
_ / s y / DATE AS LISTED, HEREON. AND IT IS NOT
\ \ ss s5 \ / / / 1. MANAGE THE DRAINAGE AREA TO REDUCE THE SEDIMENT LOAD TO THE SAND FILTER. SUITABLE FOR USE ON A DIFFERENT
/ 18 JB \ / 2. CLEAN OUT THE SEDIMENTATION CHAMBER OR FOREBAY WHENEVER SEDIMENT DEPTH EXCEEDS SIX INCHES. PROJECT SITE OR AT A LATER TIME. USE OF
�ss ` I \ \ / / 3. AT LEAST ONCE A YEAR,SKIM THE SAND MEDIA. THIS DRAWING FOR REFERENCE OR EXAMPLE
S / \ ss \ / �� ar / I / 4. REPLACE THE SAND FILTER MEDIA WHENEVER IT FAILS TO FUNCTION PROPERLY AFTER MAINTENANCE. ON ANOTHER PROJECT REQUIRES THE
/ S. INSPECT THE SAND FILTER AT LEAST QUARTERLY.ANY PROBLEMS THAT ARE FOUND SHALL BE REPAIRED IMMEDIATELY. SERVICES OF PROPERLY LICENSED
Ln 5S ARCHITECTS AND ENGINEERS. REPRODUCTION
k� / ( \ \ tl OF THIS DRAWING FOR REUSE ON
J I 3 ss GRAPHIC SCALE AND MAY BE CONTRARY TO THE LAW.
ANOTHER PROJECT IS NOT AUTHORIZED
ml \ \ 5gq 20 0 10 20 40
Lin597
_ _ ( IN FEET) O
� \ °; f inch = 20ft. Q L�
00
CN
1�1 V
—0 10 0+00 0+10 0+ 0 0+30 0+40 0+50 0+60 0+70 0+80 0+90 1+00 1+10 1+ 0 1+30 1+40 1+50 1+60 1+70 1+80 1+90 2+00 2+10 2+20 2+30 2+40 2+50 2+60 2+70 2+80 2+90
610 610 w
w
605 605
TOP IF 1 _RIP 990 an - Q
M 600 600 O
v
595 _ — — 595 00
RSAND FILTER
700 SF
AREA
d N 0
590 ° _ — 590 JOB NUMBER: C220016
— — — —
N - CHECKED BY: BHE
v
' ° DRAWN BY: BHE
585
DATE: 08 07 2023
V
580 580 SHEET TITLE:
THE UNDERDRAIN SYSTEM SHALL BE CONSTRUCTED OF PERFORATED SCHEDULEo
40
OR SDR 35 SMOOTH WALL PVC PIPE.THE UNDERDRAINS SHALL HAVE A MINIMUM 6 M P PLAN —
x SLOPE OF 0.5%AND A MAXIMUM SPACING OF 10 FEET ON CENTER.THE
PROP.SEDIMENTATION CHAMBER UNDERDRAIN PIPES SHALL HAVE A MINIMUM OF 3 INCHES OF WASHED#57 STONE SAND FILTER 3
AREA=1,494 SF ABOVE AND ON EACH SIDE OF THE PIPE.
o BOTTOM ELEV.=589.00 r1lANTI-SEEP COLLARS I
SAND FILTER CROSS SECTION SAND FILTER MEDIA Before SHEET NO.:
( ) North Carolina 81ry CISIA
0
ASTM C-33 SAND OR EQUIVALENT
SCALE: 1" — 10' u u 811 or 1-800-632-4949
18 MIN DEPTH 12 MIN DEPTH OVER UNDERDRAIN PIPES Remote Ticket Ent
http://nc8 I I.org/remoteticketentry.hnn