20060961 Ver 1_Stormwater Site Plans_20070925

. ,l ~ _ - _ - - - _ -
/ / / ~ PRECAST TOP SLAB W/ GRATE
r / ~ / j 1 ~ ~ ~ / / / /
~ ~ ~ ~ ~ SCREEN ACCESSIBLE THROUGH DOOR
5'X5' PRECAST RCP BOX VENT
1 -J- 10" VOID SPA - , - - . - - - - - 356.1 WEIR CREST' ~ SPACE
/ ~ / / l NOTE: NOTE:
~ PLACE STEM SUPPORTS SKIMMER MAY VARY
f / / _ i / / ~ J jam-/~ ~ ~ ~ / AT 3' FROM BASE SLIGHTLY FROM
=i .e ILLUSTRAl10N
~ ~ ~ / r~ _ _ , , , ' - ' ORIFICE (SEE TABLE) JOINT SEALED WITH A-LOCK NEOPRENE
, ~ , ' , ~ , . 354.50 PERMANENT POOL 4~„ ~ ~ J ~f ~ ~ ~ 4" NRS GATE VALVE ~ ..e GASKET CAST IN MANHOLE WALL
'x4" TEE GROUT EACH SIDE
~ / i~ / O FLOAT
~ ~ ~ ( ~ ~ ~ ~ TEMPORARY SKIMMER ATTACHMENT
~ ~ ~ i ~ ~ FOR EROSION CON1R0~ 4"~„ \ ~ ~ _ ~ ~ ~ ~ ~ 352.50 EMERGENCY OUTLET ~ OUTLET END; CONNECTION x4" TEE '0-RING' GASKETED TO OUTLET PIPE OR RISER
CLASS III RCP
BARREL PIPE LONGER THAN SHOWN
~ ~ / / - - - - = - = ~ = ; ~ ~ ~ / PAVED INVER - INVERT GROUT 6 NOT INCLUDED WITH SKIMMER
SUPPLIED BY USER
/ i ~ ~ ~ J ~ ~ ~ ~ 000000 00000000 , ~ I ~ ~ i ~ r , i / / / 000000000000000 ~j /
_
FLEXIBLE =XIBLE JOINT (NOT TO EXCEED 3' IN LENGTH)
1\ i 000000000000000 / / /
' ~ ~ C ~ ~ / ~ ~ 00000000000000 ~ ~ ~ ~j i TEMPORARY SE DEWATERING S NN DEVICE DETAI L SEDIMENT DEVICE
~i~ i~r j~ i~ ooaooooo00000 0 j j////// ~ , , ~ oooooaoooooo / ~ / ~ / / / / ~ ' ~ ~ ~ ~ / ~ ~ 000 00000000000 / / / / / ~ ~ , i / / 00000 0000000 / / / ~ / / / /
SKIMMER DETAIL
~i~ ~i'~ / / % ~ ° ooo°0000 °O ooo° / j / ~ / i j~ _`~'i~ - RISER & DRAWDOW i - WS
~ , ~f ER W/ 2" HEAD (TYP.)
~'r / 00000000000 / ~ ~ / ~ 000000000000 ~j/ ~ ~ j ~ / / ,ice/ ~ / ~ o°oo°o°ooooo00000 / ~ ~ % / ~ / / NTS USE 2.5" SKIMMER W (STALLED AT PRIOR TO THE
, - J / / ~ / / 00000000000000 / / / / / / / ~ ~
~ o 00000000000000 / ~ / / / / / 00000000000000 ~ / ~ / / / ~ ~ / / ~ 00000000000000 / ~ ~ / ~
C / / - - / ~ ~ / / 000000 / / ~j / ~ ~ j/
NOTES
-~`JI/ ~\J~~~ ~ ~ ~ i~~~i~~~~~~~~~ iii ii~~i (1) RISER BARREL. SKIMMER AND OUTLET PIPE SHALL ~ INSTALLE BEgNNING OVERALL SITE GRADING AND SHALL BE UTiUZE CONTROL DEVICE DURING ROADWAY AND U11UTY CONSTRUC110 BEEN STABILIZED AND GRADING IS COMPLETED THE BASIN SH AND STABILIZED. THE SKIMMER DEVICE SHALL BE REMOVED.
UTiUZED AS A SEDIMENT ~RUC110N. ONCE THE SITE HAS
~ %~i~ viii i~~i i ~~ii~~ SIN SHALL BE CLEANED OUT
~ ~ iii i , i i i i ii IOVED. THE BOTTOA~i DRAIN
~ ~ ~ ~ ~~t s CLOSED AND THE NORM/1L POOL ESTABLISHED.
~f ~ ~ ~i~~ i ~ i i i ~i iii ~ ~ ! i~, viii ~i~~ ~ ~ - GRATE OFFSET OVER STEPS & DRAWDOWN VALVE
~ (2) FlNAL SEEDING OF ALL AREAS WITHIN TWO FEET OF ELEVATION :VAl10N ABOVE THE NORMAL POOL
a?n ~S SHALL 6E A MIXTURE OF PANICUM CLANDESTINUM (DEER TON (PEARL MILLED. SEEDING RATES SHALL BE AS RECOMMENDED .R TONGUE) AND PENNISETUM GLAUCUM
/ / / ~ 1ENDED BY THE SUPPLIER.
_ i - . _ _ (3) ALL BMP DEVICES SHALL BE SCREEN FROM OFFShTE, INCLUDIN - . _ , _ _ _ _ _ _ _ _ . - AN EVERGREEN SHURB SCREEN AS RE(~111RED 8Y THE TOWN CONSTRUCTION SEQUENCE ~UDING ON-SITE LOT. VIEWS WITH
TOWN OF GARNER. 6" PRECAST CONCRETE
TOP SLAB W/ GRATE
10" VOID SP ~F FUTURE BMP DAM. ID SPACE
1. INSTALL EXISTING POND OUILET PIPE.
BMP#4 -CONSTRUCTED WETLAND 2. INSTALL SILT do TREE PROTECTION FENCE AT TOE OF FUTU - 3. INSTALL BMP RISER AND DOWNHILL SLOPE PRECAST REINFORCED BOX
1 "=30'
4. SIAt31ULt l3M1' UAM ~UF'tti 1M IM bttU dC MULW'i.
o° o o HIGH MARSH [0-9" 80.0W NORMAL POOL] (357 - 3.012 SF 5. CONTACT TOWN OF GARNER EROSION CONTROL OFFlCER F0 6. BEgN ROADWAY AND DAM REHABILITATION SLOPE GRADING 7. MAINTAIN AS MUCH DRAINAGE AS POSSIBLE INTO BASIN. CER FOR REVIEW.
~2ADING.
LOW MARSH [9-18' BELOW NORMAL POOL] (357 - 3.012 SF ASIN.
8. ONCE SUFFlCIENT AREA IS STABILIZED AND THE TOMM ERO OFFlCER ALLOWS ?HE REAAOVAL OF 7FIE SEDIMENT CON7R0 COMPLETE INSTALLATION OF THE PERMANENT STRUCTURE.
. OPEN WATER [30' BELOW NOR~AAL POOLJ (307 -2.582 SF TOP S I
CTURE. KS
9. CALL ENGINEER FOR FlNAL INSPECTION.
RCP RISER
TEMPORARY SKIMMER MIN. T WATER LEVEL DURING STORM TOP SLAB 100 Y WATER QUALITY P00~ - NIN. TOP OF DAM EL.= 357.50 BMP #4 PLANT LIST
100 YR. EL= 356.75 DEEP WATER EMERGENT COMMUNITY (9" DEPTH TO 18" DEPTH)
QUA. BOTANICAL NAME COMMON NAME SIZE SPACING NG 4 REBAR 12"
178 NELUMBO LUTEA AMERICAN LOTUS BARE ROOT 2' O.C. C. ~ C EACH WAY 11 2 C. Fl(.L C. U
112 PREFORMED JOINT " "M ppyy I -t r, BM c.LER, 12 WIDE
PERMANENT ~ MINIMUM SLOPE 3 1 178 NUPHAR LUTEA SPATTERDOCK BARE ROOT 2' O.C. 178 NYMPHAEA SPP. WATER LILY BARE ROOT 2' O.C.
- POOL I ~---MINIMUM SLOPE 2 : 1 . . 'TH) ,6
a SHALLOW WATER EMERGENT COMMUNITY (NORMAL POOL TO 9" DEPTH) _~~~ARTH DAM
~j ~ I i r QUA. BOTANIGL NAME COMMON NAME SIZE SPACING ;ING NOTES
~ ~ 180 LOBELIA CARDINALIS CARDINAL FL0INER BARE ROOT 18" O.C. ~.C. PLANTED ALONG SHORELINE
w 13" DIA. CLASS B OR 1 RIP-RAP 220 SAURURUS CERNWS LIZARD'S TAIL BARE ROOT 18" O.C. ~.C.
F~' M DISSIPATOR PAD WITH LINER 200 PONTEDERIA CORDATA PICKEREL WEED BARE ROOT 18" O.C. ~.C.
22'~ THICK X 24' LONG 100 SCIRPUS PUNGENS THREE SQUARE BULRUSH BARE ROOT 18" O.C. Qw = 25.24 crs 160 ACORUS CALAMUS SWEET FLAG BARE ROOT 18" O.C. ~.C. GROUPS OF 20 AROUND SHORELINE ~.C.
$ ~.C.
ANTI-FLOATATION DEVICE V~o = 10.88 w+s 190 SAGITTARIA LATIFOLIA BROADLEAF ARROWHEAD BARE ROOT 18" O.C.
ANTI-SEEP COLLAR ~ ~ _ SEDGE MEADOW COMMUNITY (NORMAL POOL TO HIGH WATER)
s n QUA. BOTANICAL NAME COMMON NAME SIZE SPACING NG NOTES ELEI~ATION SECTION
180 IRIS VERSICOLOR WILD IRIS BARE ROOT 18" O.C. 180 RUDBECKIA SUB. SWEET BIACK-EYED SUSAN BARE ROOT 18" O.C. ~.C. PLANT IN GROUPS OF 20 ~.C. PLANT IN GROUPS OF 20 2000 PSF MlN.
44.5 LF - 36" CLASS III RCP ~1 1.8°Jo 160 CAREX STRICTA TUSSOCK SEDGE BARE ROOT 18" O.C. ~.C. PLANT IN GROUPS OF 20 BEAR/NG GAPAC/TY
a 160 )UNCUS EFFUSUS SOFT RUSH BARE ROOT 18" O.C. CLAY LINER: WET THE CLAY LINER FOR THE CONSTRUCTED WETLAND SHALE BE AT LEAST 12" ~ THICK AND MEET THE FOLLOWING SPECIFICATIONS: • UNIFIED SOIL CLASSIFICATION SYSTEM DESIGNATION OF CL, CH, ~ ML,SC • MINIMUM OF 4096 PASSING #200 SIEVE • MINIMUM PLASTICITY INDEX OF 12 • MAXIMUM PARTICLE SIZE NOT TO EXCEED 1 INCH 2 • MAXIMUM PERMEABILITY OF 2.5X10-5 CM/SEC (0.0351N/HR) i.C. PLANT IN GROUPS OF 2d BENEATH COLLAR
g a CROSS SECTION TYPICAL ANTI- WETLAND PLANTING NOTES: ITI~SEEP COLLAR
E NTS KS
0
0 E
0 M 0 1. TOPSOIL STRIPPED FROM SITE MAY BE USED FOR BEDDING MATERIAL,
3 HOWEVER LOCAL SOILS AND ON SITE SOILS MAY NOT BE SUITABLE FOR
0 N WETLAND PLANTS. PRIOR TO INSTALLATION OF BEDDING SOIL, ALL CONSTRUCTION TO BE IN ACCOR LANDSCAPE CONTRACTOR SHALL SEND SOIL SAMPLES FROM SELECTED CITY OF RALEIGH STANDARDS AND SP SOURCE TO EITHER NCRS OR THE NC STATE AGRICULTURAL EXTENSION AND NCDOT IF APPLICABLE. ACCORDANCE WITH ALL
BMP #4 AND SPECIFICATIONS
DIMENSIONS ELEV. FOR SOIL ANALYSIS.
N NORMAL P0~ 8.607 SF 354.50 2. DO NOT PLANT AT OR NEAR RISER STRUCTURE DRAW DOWN DEVICES.
POND BOTTOM 6,039 SF 352.50 • A MINIMUM OF 2 TESTS OF EACH ABOVE PARAMETER SHALL BE
y TOP OF DADA WID1H 10 FT. 357.50 COMPLETED BY THE CONTRACTOR ON THE LINER MATERIAL AND UTILITY INSTALLATIONS AND OTHER PUBLIC
AN'tl-SEEP COLLAR 72' x 72' N A PRESENTED TO THE ENGINEER FOR APPROVAL. FACIUTIES, INCLUDING SIDEWALKS AND HANDICAP RAMPS ARE TO BE CONSTRUCTED ON ALL STREETS
DRAWDOWN ORIFlCE 2" 354.50 • COMPACTION TO A MINIMUM OF 93~ PER ASTM D698, AND WITHIN 396 OF THE OPTIMUM MOISTURE CONTENT (1 COMPACTION AS SPECIFIED BY CITY CODE. THESE FACILITIES
0 g TOP OF ANTI-FLOATA110N 6'x6'x2' 35250 DENSITY TEST PER 2500 SQ. FT.) HAVE BEEN APPROVED BY THE CITY OF RALEIGH AND SHAD. BE SO INSTALLED UNLESS A CHANGE
TOP OF RISER 4'x4' RCP BOX 356.10 THE CLAY LINER SHALL BE PLACED UNDER THE BOTTOM OF THE WETLAND IS AUTHORIZED BY `WRfM APPROVAL. PUBLIC SANITARY SEWER EASEMENTS ARE TO BE RECORDED
~ OU'RET PIPE INVERT UP 36" RCP 332.50 AND UNDER THE SIDE SLOPES TO AN ELEVATION OF 202.5 FT. A MINIMUM OF 8 INCHES OF TOPSOIL SHALL BE THE FINISHED GRADE AS SHOWN ON THE PRIOR TO FINAL ACCEP'T'ANCE.
OUTLET PIPE INVERT DOWN 36` RCP 351.70 DRAWINGS AND/OR DETAILS. CARE SHALL BE TAKEN WHEN TRACKING IN THE PRES. ° : RY
TOPSOIL TO NOT PUNCTURE OR DAMAGE THE CLAY. A CLAY/SOIL MIXTURE NOT APPR(~V~D ~4C~N~TRUCTION TRANSPORTATION SERVICES
MAY BE USED IF THE ABOVE SPECIFICATIONS ARE SATISFIED AND WITH PUBLIC UTILITIES
a a WRITTEN APPROVAL BY THE ENGINEER.
0 v 0 ~1. OO ~CNCN~ ~ 1~(j ,O N M. L~~
3 CONSERVATION ENGINEER
i
i 0 a
No. Revision Date B Designer Scale
WdcR 1" 30
o Drawn By Date 2Y07 WADE LOT 6 -PHASE 1 STO . RMWATE WITHERS RA TER MANAGEMENT PLAN ENGINEERS 1 PLANNERS . SUR' AV N Sheet No.
JET 8/ o Checked By Job No. SURVEYORS 6*0
,,,~L 04467 RALEIGH WAKE COUNTY NORTH CAROLINA 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: 919-46 Lx: 919-467-6008 www.withersravenel.com

l / ~
/ i ~ PRECAST TOP SLAB W/ GRATE
~ ~ i % ~ I lei ~ ~ / SCREEN ACCESSIBLE
i / i i VEN T THROUGH DOOR
i 4'X4' PRECAST RCP BOX
~ ~ ~ 9" VOID SPAC ~ ~ ~ i ~ ~ 375.50 WEIR CREST SPACE NOTE:
~ NOTE: SKIMMER MAY VARY
~ PLACE STEM SUPPORTS SLIGHTLY FROM
AT 3' FROM BASE ILLUSTRATION
~ ~ ~ 1~ ~ ORIFICE (SEE TABLE) JOINT SEALED WITH A-LOCK NEOPRENE
~ ~ ~ I ~ ~ ~ 374.50 PERMANENT POOL ~ . 1 I " ~ GASKET CAST IN MANHOLE WALL
x4" TEE GROUT EACH SIDE FLOAT
~ ~ j / , ~ ' t 4" NRS GATE VALVE ~
000 0 000 000 11 ' ` 1 \ \ \ TEMPORAR FOR I EROSION~CONTROL 4~„ ~ OUTLET END; CONNECTION
000000 000 00 000 0000 0000000 00000
000 00000000 00 0000000 0000 00 ~c4" TEE '0-RING' GASKETED TO OUTLET PIPE OR RISER CLASS III RCP
000 00000000 0000 0000000 0000 0000 i ~ ~1 ~ I~ ~ ~ ~ ~ 372.00 EMERGENCY OUTLET BARREL PIPE LONGER THAN SHOWN
000 0000 000 0000 000 000 0000 0000 0 0000000 00000000 00 ~ ~ \ ~ \ j\~~~ j~~~j/\~~~ j\~~~ j\~~~ j\~~~ j~~~j\~i\\ . ~i~\~ PAVED INVER ~ ~ INVERT GROUT 6" ~---NOT INCLUDED WITH SKIMMER SUPPLIED BY USER
00 00000000 0000 000 0 000 0000 000 0000
00000000 000000000 00 0000 00000000 0 00000000 0000 00
0000 0000 0000000 000 000 0000 000 FLEXIBLE =XIBLE JOINT (NOT TO EXCEED 3' IN LENGTH)
00 0000 0000 0000 \ 00 0000 000 00000
00 000 0000 00000 0 0000 00000000000 0 00000 0 0 0000000 ~ ~
0 00000000 00000 0 00000 0000 00000 0 ~ ~ ~ TEMPORARY SE DEWATERING S NN DEVICE DETAIL SSE 2.5" SKIMMER W/ SEDIMENT DEVICE
0 0000 0000000000 ~ 0 000 0000 0000000 000000 0000 0000000 ~ ~ ~
0 0000 0000 0000000 00 000000000 000000 ~ \ ~ SKIMMER DETAIL
0000000000000 00000 ~ - I 0000000000 0000 00 0 ~ ffrs
00 000000000000000 000 OOOOOOOOOOOOO~Q 000 00000 00000000 RISER & DRAWDOW ~ ~ ~ ~ .R W/ 2" HEAD (TYP.)
000 00000 0000000 0000 000000 000000 ~ ~ ~ ~ ~ NTS
00000000000 00000 0000 00000000 000 \ 00000 00000000 00 ~ ~ i
00000 00000000 0 0 0400000` 0000000 ~
00000 000..0000000 (j~Q 000006.0000000 0
00000000 000000 \ 0 00000 ~Q,0000000 0 -61, 0000~80t,Q0000000d~Q,00 NOTES
\ ooo`~-o~aoooooooma- 0000 0 0000oooooa~o 000000 ~ ~ \ ~ ~ (1) RISER BARREL. SKIMMER AND OU'T1.ET PIPE SHALL BE INSTAI ~ ~ STALLED AT PRIOR TO THE
\ o ~ooooo0000o c~ o00 ~ \ \ ooooo-eao 0000000 \ ~ \ \ \ oo-o~0 0000000 ~ ~ BEgNNING OF OVERALL SITE GRADING AND SHALL BE U1IUZED ~ ~ iIUZED AS A SEDIMENT
\ \ 00000000 ~ \ \ 000 \ 00000000-e o \ \ 00 0000 \ \ o ooooo~o~ \ 000 0000000 0 \ ~ ~ \ ~ CONTROL DEVICE DURING ROADWAY AND UTiL)TY CONSTRUCTION ~ ~ ~ ~ ~ \ BEETI STABILIZED AND GRADING IS COMPLETED THE BASiN SHA ~ ~ ~ ~ ~ AND STABWZED. THE SKIMb1ER DEVICE SHALL BE REMOVED, T ~ ~ ~ ~ ~ tUCT10N. ONCE THE SITE HAS
\ \ ~ \ ~ooo0 0000000000000000 \ \ \ \ oo,a,oooooooo~aoo 0000 IN SHALL BE CLEANED OUT
\ \ oo~vo-s 00000000000 0 \ os~ \ \ \ oooooo~ro o-n-o ~ ~ ~ o a.o \ ~ \ ~ oooo`Qo-eo.~ooooo0000000 0 iVED, THE BOTTOM DRAIN
~ ~ ~ ~r 0 0 0 0 0 oao-o-o-$-o \ ~ _ i oo _ \ \ o 0 \ \ ~8-O.Q-o \ ~ \ \ ~ \ \ ~ ~ \ ` CLOSED AND THE NORMAL POOL ESTABLISHED. GRATE OFFSET OVER
\ \ 0 ~ ~ ~ \ ~ STEPS & DRAWDOWN VALVE
\ \ \ \ ~ ~ ~ ~ ~ \ ~ ~ ~ ~ \ ~ \ ~ ~ ~ (2) FlNAL SEEDING OF ALL AREAS MATHIN TWO FEET OF ELEVATION 'AT10N ABOVE THE NORMAL PO01.
\ ~ \ \ \ ~ \ ~ \ \ \ ~ \ "+1 w~.~ ~..w~ ~~r way 1~ ~ ~ ~ ~ ~ ~ ~ \ ~ ~ ~ ~ SFIALL BE A MIXTURE OF PANICUM CLANDESTINUM (DEER TONG ~ ` ~ ~ \ ~ \ \ ~ \ \ \ ~ (PEARL MILLED. SEEDING RATES SHALL BE AS RECOMMENDED ~ ~ ~ ~ t TONGUE) AND PENNISEIUM GLAUCUM :LADED BY THE SUPPLIER.
\ ~ ~w \ \ \ \ ~ \ \ ~ \ \ \ ~
\ ~ \ ~ ~ ~ ~ ~ ~ ~ ~ \ ~ \ - (3) ALL BMP DEVICES SHALL BE SCREEN FROM OFFSITE. INCLUDING UDING ON-SITE LOT. VIEWS WITH
~ \ \ \ ~ \ ~ \ ~ ~ ~ \ ~ ~ ~ \ \ 3~ _ _ AN EVERGREEN SHURB SCREEt~I AS REQUIRED BY THE TOWN OF AWN OF GARNER.
~ ~S ~ ~ 8 6" PRECAST CONCRETE TOP SLAB W/ GRATE
\ ` \
\ \ \ \ ~ _ ~ _ CONSTRUCTION SEQUENCE
\ \ ~ 9" VOID SPAC FUTURE BMP DAM. SPACE
\ \ \ \ ~ \ \ ~ ~ \ ` ~ ~ \ \ \ ~ \ ~ ~ ~ - - - - - - ' 2. INSTAl.1 SILT do TREE PROIEnC ON~PFENCE AT TOE ~ FUTUR PRECAST REINFORCED BOX
\ \ ~ \ J \ \ ~ ~ ~ \ \ ~ \ \ \ \ -1 ~ ~ ~ \ ~ ~ ~ ~ _ _j 3. INSTALL BMP RISER AND DOMMHILL SLOPE.
~ ~ ~ \ \ \ ~ _ ~ \ ~ ~ ~ ~ ~ ~ ~ ~ d creaii i~c aua nsu b l1PFC 1MTN c~Fn ~ uui cH_
~ ~ F~ R~~
\ ~ \ \ ~ ~ ~ ~ / 5. CONTACT TOWN OF .GARNER EROSION CONTROL OFFlCER FOR ~ ~ ~ _ - i ~ i 6. BEGIN ROADWAY AND DAM REHABILITATION SLOPE GRADING. ADING.
SIN.
/ J ~ ~ ~ ~ ~ j ~ ~ , 7. MAINTAIN AS MUCH DRAINAGE AS POSShBLE INTO BASIN.
l ~ 8. ONCE SUFFlCIENT AREA IS STABILIZED AND THE TOWN EROSI
OFFlCER ALLOWS THE RE~AOVAL OF ?HE SEDII~AENT CONTROL COMPLETE INSTALLATION OF THE PERMANENT STRUCTURE. V TOP S oNrta o~nc~ TORE. P SLAB DETAIL
BMP#5 -CONSTRUCTED WETLAND - 9. CALL ENgNEER FOR FlNAL INSPECTION. KS
1 "=30'
o°o°o°o H~qi MARSH [0-9" BELOW NORMAL POOL] (35:n - 8.807 SF
LOW MARSH [9-18' BELOW NORMAL POOL] (35~ -8,807 SF
BMP #5 PLANT LIST
- OPEN WATER [30' BELOW NORMAL POOLJ (30X) - 7,549 SF 'H)
DEEP WATER EMERGENT COMMUNI~tY (9" DEPTH TO 18" DEPTH)
QUA. BOTANICAL NAME COMMON NAME SIZE SP 521 NELUMBO LUTEA AMERICAN LOTUS BARE ROOT 2 SPACING 4 REBAR ~Zr
RCP RISER 2' O.C. ~.C. EACH WAY ~ /2 2' O.C. FfLL 2' O.C. 7 2~ !E1~ORMED JOINT
521 NUPHAR LUTEA SPATTERDOCK BARE ROOT 2 LCER12 WIDE
TEMPORARY SKIMMER MIN. T ~ WATER LEVEL DURING STORM TOP SLAB 100 Y a ~ ~ T ( WATER QUALITY POOL VIIN. TOP OF DAM EL.= 378.00 521 NYMPHAEA SPP. WATER LILY BARE ROOT 2
f0 9" DEPTH) ; • 'a
100 YR. EL= 376.59 SHALLOW WATER EMERGENT COMMUNITY (NORMAL POOL TO 9" QUA. BOTANICAL NAME COMMON NAME SIZE S
SPACING NOTES
500 LOBELIA CARDINALIS CARDINAL FLOWER BARE ROOT MINIMUM SLOPE 3 1 650 SAURURUS CERNUUS LIZARD'S TAfL BARE ROOT 650 PONTEDERIA CORDATA PICKEREL WEED BARE ROOT ~-MINIMUM SLOPE 2 : 1 50 SCIRPUS PUNGENS THREE SQUARE BULRUSH BARE ROOT 480 ACORUS CALAMUS SWEET FLAG BARE ROOT -..EARTH DAM 500 SAGITTARIA LATIFOLIA BROADLEAF ARROWHEAD BARE ROOT SEDGE MEADOW COMMUNITY (NORMAL POOL TO HIGH WATER) ~T 18" O.C. PLANTED ALONG SHORELINE
0 ~T 18" O.C. ~T 18" O.C.
~T 18" O.C. GROUPS OF 25 AROUND FES ' ~
PERMANENT i M ( ~ POOL ~T 18" O.C.
g N ~T 18" O.C.
r I p ' ^"h;:, titre • r sk ~ n ^ y1
a .i ?TER) k h 7.amx~ 'ta.f~ ~iM.i„n^'c. f,..Y ;a1. Q4w+`y t.a ij
4 23~ DIA. CIASS 2 RIP-RAP QUA. BOTANICAL NAME COMMON NAME SIZE S DISSIPATOR PAD ~WtTH LINER 240 IRIS VERSICOLOR WILD IRIS BARE ROOT 1 Z7 THICK X Z4 LONG 300 RUDBECKIA SUB. SWEET BLACK-EYED SUSAN BARE ROOT 1 Quo = 14.41 cfs 180 CAREX STRICTA TUSSOCK SEDGE BARE ROOT 1 V~o = 18.96 ~s 280 )UNCUS EFFUSUS SOFT RUSH BARE ROOT 1 I SPACING NOTES ELEVATION SECTION ~e W~ 1R s
O N 18" O.C. PLANT IN GROUPS OF 20 C M 0 0
18" O.C. PLANT (N GROUPS OF 20
~ i~ , 18" O.C. PLANT IN GROUPS OF 20 2000 PSF MIN. ,LJ k,l \~te wt . Pf Tr 1`j rP T ~3? e .Y UN
~ ANTI-FLOATATION DEVICE ' ~ , 18" O.C. PLANT IN GROUPS OF 20 BEARING CAPACRY BENEATH COLLAR
ANTI-SEEP COLLAR ~
a a . I CLAY LINER: WETLAND PLANTING NOTES: TY P f CA L ANTI- 1. TOPSOIL STRIPPED FROM SITE MAY BE USED FOR BEDDING MATERIAL, Tl~SEEP
c 0 ' ' ' THE CLAY LINER FOR THE CONSTRUCTED WETLAND SHALE BE AT (EAST 12" NTS
E 0 a 0 THICK AND MEET THE FOLLOWING SPECIFICATIONS: • UNIFIED SOIL CLASSIFICATION SYSTEM DESIGNATION OF CL, CH, HOWEVER LOCAL SOILS AND ON SITE SOILS MAY NOT BE SUITABLE FOR
cq E 3.2 LF - 24" CLASS III RCP O 11.9 ML,Sc WETLAND PLANTS. PRIOR TO INSTALLATION OF BEDDING SOIL, LANDSCAPE CONTRACTOR SHALL SEND SOIL SAMPLES FROM SELECTED
• MINIMUM OF 4096 PASSING #200 SIEVE SOURCE TO EITHER NCRS OR THE NC STATE AGRICULTURAL EXTENSION
v 3 • MINIMUM PLASTICITY INDEX OF 12 • MAXIMUM PARTICLE SIZE NOT TO EXCEED 1 INCH FOR SOIL ANALYSIS. ACCORDANCE WITH ALL
CROSS SECTION • MAXIMUM PERMEABILITY OF 2.5X10-5 GNSEC (0.0351N/HR) 2. DO NOT PLANT AT OR NEAR RISER STRUCTURE DRAW DOWN DEVICES. ALL CONSTRUCTION TO BE IN ACCOR CITY OP RALEIGH STANDARDS AND SP AND NCDOT IF APPLICABLE. kND SPECIFICATIONS
NTS A MINIMUM OF 2 TESTS OF EACH ABOVE PARAMETER SHALL BE
COMPLETED BY THE CONTRACTOR ON THE LINER AAATERIAL AND
PRESENTED TO THE ENGINEER FOR APPROVAL. • COMPACTION TO A MINIMUM OF 93% PER ASTM D698, AND
~ BMP #5 DIMENSIONS ELEV. WITHIN 396 OF THE OPTIMUM MOISTURE CONTENT (1 UTILITY INSTALLATIONS AND OTHER PUBLIC
COMPACTION DENSITY TEST PER 2500 SQ. FT.) FACILITIES, INCLUDING SIDEWALKS AND HANDICAP
NORMAL POOL 25.162 SF 374.50 THE CLAY LINER SHALL BE PLACED UNDER THE BOTTOM OF THE WETLAND F RAMPS ARE TO BE CONSTRUCTED ON ALL. STREETS AS SPECIFIED BY CITY CODE. THESE FACILITIES
POND BOTTOAiI 20,164 SF 372.00 AND UNDER THE SIDE SLOPES TO AN ELEVATION OF 202.5 FT. A MINIMUM OF 8 INCHES OF TOPSOIL SHALL BE THE FINISHED GRADE AS SHOWN ON THE HAVE BEEN APPROVED BY THE CRY OF RALEIGH
0 roP of ~a~ w~oTM ~o Fr. 3~aoo DRAWINGS AND/OR DETAILS. CARE SHALL BETAKEN WHEN TRACKING IN THE AND SHALL BE SO INSTALLED UNLESS A CHANGE IS AUTHORIZED BY WRITTEN APPROVAL PUBLIC
AN71-SEEP COLLAR 48'x48" N A TOPSOIL TO NOT PUNCTURE OR DAMAGE THE CLAY. A CLAY/SOIL MIXTURE SANITARY SEINER EASEMENTS ARE TO BE RECORDED
c ~RAWDOWN ORIFICE 3" 374.50 MAY BE USED IF THE ABOVE SPECIFICATIONS ARE SATISFIED AND WITH PRIOR TO FINAL ACCEPTANCE.
0 TOP OF ANlt-FLOATA710N 5'x5'n2' 372.00 WRITTEN APPROVAL BY THE ENGINEER. P REQ. : RY TRANSPORTATION SERVICES
T~ OF RISER 4'x4' RCP BOX 375.50 NOT APPR(~V~D ~4C(~N~TRUCTION
~ OUTLET PIPE INVERT UP 24" RCP 372.00 ~ z ~ ~c, .e~.,9~0~~~_ ~~eoePVee; PUBLIC UTILITIES
a'` OUTLET PIPE INVERT DONM 18' RCP 364.50
0 v v CONSERVATION ENGINEER
3
i
e ~ 0 a i
No. Revision Date B Designer s~ie
$ WdcR t" 30' \ o Drawn By Date 0 JET 8 24 07 ANf N Sheet No.
WADE LOT 6 -PHASE 1 STORMVAT[
o Checked By Job No. TER MANAGEMENT PLAN WITH R S &Pow RA ENGINEERS 1 PLANNERS . SUR' SURVEYORS 6*1
,,,ML 0"67 RALEIGH WAKE COUNTY NORTH CAROLINA 111 MacKenan Drive Cary, North Carolina 27511 tel: [phone] fax: 919-46 Lx: 919-467-6W8 www.withersravenel.com