SW7060507_APPROVED PLANS_20060626

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�O,SIJ%
DOC TYPE
El CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
Dleci�
YYYYMMDD

MARINA VILLAGES:
I IARBOR VILLAGE I -HARBOR VILLAGE lI-A
PROJECT DATA
PREPARED BY-
McKIM & CREED
200 MacKenan Court
Cory, North Carolina 27511
PHONE: [phone]
FAX: [phone]
OWNER:
RIVER DUNES CORPORATION
ED MITCHELL
416 WEST POLLOCK STREET
NEW BERN, NC 28563
PRELIMINARY llESIGN
NOT RELEASED
FOR CONSTRUCTION
SECTION 4a
MAY, 2006
MC PROJECT NO. 04135-0002
A"wqpA
44$�Mc"v4&CMED
200 MacKenan Court
Cary, North Carolina 27511
Phone: [phone], Fax: [phone]
Website: www.mckimcreed.com
INDEX
GENERAL
COVER SHEET G1
MASTER PLAN M-1
HARBOR VILLAGE II -A
OVERALL GRADING, DRAINAGE, AND EROSION CONTROL PLAN C9
HARBOR VILLAGE I
OVERALL GRADING, DRAINAGE, AND EROSION CONTROL PLAN
SECTION 4a
OVERALL GRADING, DRAINAGE, AND EROSION CONTROL FLAN
DETAILS
STORMWATER DETAILS
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6.66 - WATERLINE _ _ _ _ - ------=--
- LOW BULKHEAD -
\ �5 7
\ i
8 7.50 IM I U5 'SrMMCK 7.85
-~ ID 52
a a o © a ® E3] cI z.
1911, Ir '
f �ZO to 1
ao, FUTURE HARBOR VILLAGE III
lee,
<<
LJ ,
- - - - - - EAS HARBORSID ROAD41-
-
it FLUME 7.10i 7.45 9`32 44' (20'roadway) 6.90
111_� nFUTURE VILLAGE CENTER
x6.85 �
x r x I ` CONCRETE F_UM
EI
1 x6.5 6 UPERELEVAT
_ __--- cw RETAI ING Wp '', N L 8 L
N
ROAD 9
x 0 `'/' � �`ASSE17
DRAINAGE
\ AREA 6
2.35 ACRES
1 r'R 25 7. 0 \ ® 15 10 4 F
\ - /
FLUME _� WETLANDS I
\ F � � � -a
SEE SECTION - SHEET D4 00
x
7,45 20' RM (ALLEY 12' ro Away)
o 9 8.40
DRAINAGE AREA 7
3.55 ACRES
LO
i RIP -RAP (TYP) BIORETENTION AREA BR-5 X lb
i
BOTTOM EL. 5.5d
\ _PERMANENT GRASSED- x I I k 9_2 INFILTRATl01�i.
f /
EARTHEN BERM _ --
SWALE SW-4 9 _BASIi�
W = 3.0 FT - .32
x 8.4 2 !
\I 1,1I?S 4. 5 40 LF OF 18" RCP
►'% CEDl / 4 35 CijR `lERT 00.6% 1 \� ® I NO NEUSE RIVER RIPARIAN SUFFERS
CREEK / INV. IN 5.32 /
f 50. 20 LF 18' RCP ON DELINEATION
5Q CULVERT ®0.6% INS= --OUT 5.08 AND CAMA IS AREA
VEGETATION
INV. E 4.62 CONCRETE FLUME EXIST IN THIS AREA i
INV. OUT 4.50
30' NEUSE RIVER 50 , pMAt45SL
\ / RIPARIAN BUFFER - - - ROADWAY II-B -
- -
f
8 45 - _
t I 40' RIW (78' roadway)
tR
50
►A}F1t�Tf�ATfON �
RIPAVAN , UFFER I
' Q 20 FT DRAINAGE E--56
I GRASSED BYPASS
I EASEMENT 4 -
OTTPY
-4
SWALE 0 1.0%
t J�j
J l"`� l Piz F, ASSED 50 FT LEVEL SPREADER - L=40 FT
2 5 VEGETATED TYPE I
FILTER TOP OF LIP EL. 4.75
-- - `x5.50 x5.5 - - WETLANDS SEE AIL SHEET D4
� DETAIL
PROPOSED GRADES FOR
� 1
EARTHEN BERM 7 LOW DENSITY LOTS
\ W=3.0FT f
EL. 2.90
o° CONTOURS TO MATCH FUTURE
CAMA TM
VEGETATION_', % o o PROPOSED GRA0E5 FOR LOS
z O I -. t "'Walk� Alias
oo° 38-42.
°°°0 1
°p O
00�- LEVEL SPREADER - LS-5
1 TYPE II -- GRADING NOTES:
°o° L = 115 FT; EL. = 2"5 '
SEE DETAIL - SHEET D4
o°a \
�l 1t V
k /
\ i
1 1 REVISED BIORETENTION AREA BR-5 AND INFILTRATION BASIN 1-2; REVISED LOCATION OF SW-3 AND SW-4 S 28 06
REVAO, DESCRIPTIONS DATE
REMSIONS
1,
INITIATE EROSION CONTROL SEQUENCE BEFORE BEGINNING
9. SOIL BORINGS IN BIORETENTION AREAS AND INFILTRATION BASINS
CLEARING AND GRADING OPERATIONS.
WLL BE CONDUCTED PRIOR TO CONSTRUCTION OF IMPERVIOUS AREAS
2.
CLEAR AREAS TO BE GRADED OF ALL VEGETATION, PROTECT
THAT PRODUCE STORMWATER RUNOFF. BORINGS WILL BE LOGGED
VEGETATION BEYOND GRADING LIMITS.
A41) SUBMITTED WITH THE PE CERTIFICATION REQUIRED WITH PERMIT.
A REGISTERED SOIL SCIENTIST WILL FIELD VERIFY THAT THE SOILS IN
3.
STRIP TOPSOIL TO FULL DEPTH IN AREAS TO BE GRADED.
THESE AREAS WILL BE REPLACED WITH SUITABLE SOILS PER NCDENR
4.
COMPACT ALL FILL AREAS TO 95% OF MAXIMUM DENSITY,
SrORMWATER BMP MANUAL STANDARDS.
OR PER GEOTECHNICAL RECOMMENDATIONS.
10, CDNTRACTOR SHALL COORDINATE WITH THE ENGINEER TO INSTALL
5.
ALL AREAS ARE TO BE GRADED SO THAT NO AREAS OF
EENCHMARK AT EACH INFILTRATION/BIORETENTION BASIN AS A
STANDING WATER OCCUR.
GUIDE FOR MEASUREMENT OF SEDIMENT STORAGE.
6.
PROPOSED SPOT ELEVATIONS ARE SHOWN AT FINISHED
GRADE (GUTTER FLOW LINE ELEVATION, WHERE
APPLICABLE).
7.
THE INSTALLED INFILTRATION BASINS WILL MEET DESIGN
SPECIFICATIONS UPON INITIAL OPERATION ONCE THE PROJECT
IS COMPLETE AND THE ENTIRE DRAINAGE AREA IS STABILIZED.
8.
LOTS 41 & 42 WILL DRAIN TO THE SOUTH AND BE INCLUDED
UNDER A FUTURE HIGH DENSITY PERMIT.
SEAL
O„#6101612,4,,
CARO
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EAL
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� MCMM&CMED
200 MacKenan Court, Suite 200
Cary, North Carolina 27511
Phone: [phone], Fax: [phone]
AA0002667 E30006691
www.mckimcreed,com
NORTH CAROIL[HA
LEGEND:
EXISTING CONTOUR
PROPOSED CONTOUR
)ELINEATED DRAINAGE AREA
-
FLOW DIRECTION
75
HIGH DENSITY LOTS
F75]
LOW DENSITY LOTS
RIVER DUNES SUBDIVISION
HARBOR VILLAGE II -A
GRADING AND DRAINAGE PLAN
41111UBIV D
JUNO62006
DWQ
P8CW
NORTH
40' 0 40' 80'
SCALE; 1"=40' (Horiz.)
DATE:
JUNE 2006
MCE_ PROJ. #
4135--0002
DRAWN
GCA
DESIGNED
CMB
CHECKED
GML
PROD, MGR.
GML
SCALE
M&C FILE NUMBER
CG101
DRAMING NUMBER
HORIZONTAL'
I" = 40'
VERTICAL:
C V
NA
ISTATUS: FOR PERMIT REVISION
+II I .I 3 ++ i'1, r
1•.r -,0 ''„ y. �+ i'� iij' +ti, I4 �, +• `l i E1G�y i
.. I , j, + F 1 i ! a ,' I 5 rE �. i!

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13
sO✓ 70 0 0
A
1
x
.00
THEN BERM
W 3.0 FT
J -:
{...
-00
DRAINAGE AREA 3
- 2.46 ACRES
7.Q
©1
MARINA 000a
v D
200 MacKenan Court, Suite 200
Cary, North Carolina 27511
Phone: [phone], Fax. [phone]
AA0002667 E80006691
www.mckimereed.com
j
30' NEUSE RIVER
RIPARIAN BUFFER
1�(Typ), I -
CEDAR
CREEK
♦ r-
VILLAGE
CENTER
GRADING NOTES:
1. INITIATE EROSION CONTROL SEQUENCE BEFORE BEGINNING
CLEARING AND GRADING OPERATIONS.
2, CLEAR AREAS TO BE GRADED OF ALL VEGETATION. PROTECT
VEGETATION BEYOND GRADING LIMITS.
3. STRIP TOPSOIL TO FULL DEPTH IN AREAS TO BE GRADED.
4. COMPACT ALL FILL AREAS TO 95% OF MAXIMUM DENSITY,
OR PER GEOTECHNICAL RECOMMENDATIONS.
5. ALL AREAS ARE TO BE GRADED SO THAT NO AREAS OF
STANDING WATER OCCUR.
6. PROPOSED SPOT ELEVATIONS ARE SHOWN AT FINISHED
GRADE (GUTTER FLOW LINE ELEVATION, WHERE
APPLICABLE).
7. LOTS 11A, 12A, 13A, AND 14A TO BE PERVIOUS AND SHEET
FLOW TO CEDAR CREEK WETLANDS.
8. THE INSTALLED INFILTRATION BASIN WILL MEET DESIGN
SPECIFICATIONS UPON INITIAL OPERATION ONCE THE PROJECT
IS COMPLETE AND ENTIRE DRAINAGE AREA IS STABILIZED.
9. SOIL BORINGS IN BIORETENTION AREAS AND INFILTRATION BASINS
WILL BE CONDUCTED PRIOR TO CONSTRUCTION OF IMPERVIOUS AREAS
THAT PRODUCE STORMWATER RUNOFF. BORINGS WILL BE LOGGED
AND SUBMITTED WITH THE PE CERTIFICATION REQUIRED WITH PERMIT.
A REGISTERED SOIL SCIENTIST WILL FIELD VERIFY THAT THE SOILS IN
THESE AREAS WILL BE REPLACED WITH SUITABLE SOILS PER NCDENR
STORMWATER BMP MANUAL STANDARDS.
10. CONTRACTOR SHALL COORDINATE WITH THE ENGINEER TO INSTALL
BENCHMARK AT EACH INFILTRATION/BIORETENTION BASIN AS A
GUIDE FOR MEASUREMENT OF SEDIMENT STORAGE.
LEGEND:
sr4 EXISTING CONTOUR
PROPOSED CONTOUR
•�•••■• ■••••�� DELINEATED DRAINAGE AREA
RIVER DUNES DEVELOPMENT
HARBOR VILLAGE I
GRADING AND DRAINAGE PLAN
----� FLOW DIRECTION
%r- HIGH DENSITY LOTS
7J LOW DENSITY LOTS
IRE C E I V E D
JUN 0 7 MW
DWQ
PRW #
40' 0 40' 80'
SCALE: 1 "=40' (Horiz. )
MAY 2006
[DATE:
MCE PROD. #
4135-0002
DRAWN
GCA
DESIGNED
CMB
CHECKED
GML
PROD. MGR.
GML
SCALE
M&C ALE NUMBER
CG101
DRAyANG NUMBER
HORIZONTAL:
1" — 40'
VERTICAL:
C 15
NA
STATUS: FOR PERMIT REM
L A
i e yF
� s f !r
��
6t
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{ •'�
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W 76 CQ �o
GRADING NOTES:
STEEL PLATE ACROSS ROADWAY
ABOVE CONCRETE TRENCH DRAIN
ROADWAY EL. 7.
EL, 7.25
BERM EL, 7.50
BYPASS WEIR SECTION (A -A)
30' NEUSE RIVER I
RIPARIAN BUFFER
/
50' NEUSE RIVER----
\
RIPARIAN BUFFER
3.11
\
4AlI-TI nnlnc � If`IC �
— —
BROAD CREEK
CAMA VEGETATION t
\
2
30' NItUSE
RIPARIAN E
50' NEUSE R}'VER
RIPARIAN BUFFER
\ rr
ROAD
\
38 \
❑ \
TRANSITION FROM
NORMAL CROWN TO
SUPERELEVATION TO
/ MILL CREB
d '9
s
r TRANSIT ON FROM
NORMA CROWN TO RETAINING WALL
iI SUPER LEVATION TO ( L = +/- 50 FT
1 CON RUNOFF INTO
BI KTENTION AREA #I'-
\\'FgTURE LOWIDENSITY
DEVELOPMENT
---_SECTION 4_A
ti
Cp
— — -- — — — — — — — — — — — — — — — — — — --- — — — — — — — — — — --- ._---_.._..._._.._.--.._---_.----- (\-----_----__
_14 1 n1A1 M1 II VUCArl aRL) �
v
v ED
0
200 MacKenan Court, Suite 200
Cary, North Carolina 27511
Phone: [phone], Fax: [phone]
AA0002667 EB0006691
www.mckimcreed.com
1. INITIATE EROSION CONTROL SEQUENCE BEFORE BEGINNING
CLEARING AND GRADING OPERATIONS.
2. CLEAR AREAS TO BE GRADED OF ALL VEGETATION, PROTECT
VEGETATION BEYOND GRADING LIMITS.
3. STRIP TOPSOIL TO FULL DEPTH IN AREAS TO BE GRADED.
4. COMPACT ALL FILL AREAS TO 95% OF MAXIMUM DENSITY,
OR PER GEOTECHNICAL RECOMMENDATIONS.
5. ALL AREAS ARE TO BE GRADED SO THAT NO AREAS OF
STANDING WATER OCCUR.
6. PROPOSED SPOT ELEVATIONS ARE SHOWN AT FINISHED
GRADE (GUTTER FLOW LINE ELEVATION, WHERE
APPLICABLE).
7. SOIL BORINGS IN BIORETENTION AREAS AND INFILTRATION BASINS
WILL BE CONDUCTED PRIOR TO CONSTRUCTION OF IMPERVIOUS AREAS
THAT PRODUCE STORMWATER RUNOFF. BORINGS WILL BE LOGGED
AND SUBMITTED WITH THE PE CERTIFICATION REQUIRED WITH PERMIT.
A REGISTERED SOIL SCIENTIST WILL FIELD VERIFY THAT THE SOILS IN
THESE AREAS WILL BE REPLACED WITH SUITABLE SOILS PER NCDENR
STORMWATER BMP MANUAL STANDARDS.
8. CONTRACTOR SHALL COORDINATE WITH THE ENGINEER TO INSTALL
BENCHMARK AT EACH INFILTRATION/BIORETENTION BASIN AS A
GUIDE FOR MEASUREMENT OF SEDIMENT STORAGE.
9. PLANTINGS IN BIORETENTION AREAS BR-1 AND BR-2 SHALL SE
CHOSEN TO ACCOMODATE 12 IN. PONDING DEPTH AND SHALL
CONFORM TO STANDARDS OF PLANTING LIST ON SHEET D1,
LEGEND:
75
75
EXISTING CONTOUR
PROPOSED CONTOUR
DELIINEATED DRAINAGE AREA
FLOW DIRECTION
HIGH DENSITY LOTS
LOW DENSITY LOTS
REED
JINN 0 6 c4IM
vwfg
pm#
40' 0 40' 80,
SCALE: 1"=40' (Horiz.)
RIVER DUNES DEVELOPMENT
SECTION 4-A
GRADING AND DRAINAGE PLAN
DATE:
MAY 2006
MCE PROJ. #
4135-0002
DRAWN
GCA
DESIGNED
CMB
CHECKED
GML
PROD. MGR.
GML
SCALE
m&C FILE NUMBER
CG101
DRAWING NUMBER
HORIZONTAL:
1"=40'
VERTICAL:
C34
NA
STATUS: REVISION
FOR PERMIT
•! r---+T—..
�f
* � I �'i � -' F f p ( a
.4 f- SS t „
5 ,i. �
•��. �'r5 } �r i

4..1 .1 1% .
v
MAX. PONDED
GRASS WATER DEPTH
BUFFER (TYP) 0.75 FT
SHEET FLOWIl
LIMIT OF PAVEMENT
PLANT MATERIAL TOLERANT
OF FLUCTUATING MOISTURE
LEVELS
BIORETENTION AREA
BIO-RETENTION AREA SECTION
SHEET3 10*1
E�
EE TABLE
IN. 2 FT
BIO RETENTION
NUMBER
LENGTH
(FT)
WIDTH
(FT)
SURFACE AREA
(SO. FT)
PONDING DEPTH
(FT)
PONDING ELEV.
BOTTOM ELEV.
BOTTOM ELEV.
PLANTING SOIL
M,H.W.L.
PLANTING MATERIAL
PLANTING SPECIES
NUMBER/DENSITY
BR-1
N/A
N/A
5.025
1.00
7.25
6,25
3.80
1.80
SEE PLANT LIST
SEE PLANT UST
BR-2
N/A
N/A
5,075
1.q{l
7.25
6.25
3.8D
1.70
SEE PLANT LEST
SEE PLANT LIST
BR-3
N/A
N/A
8.800
0.75
6.25
5.50
3.DO
0.90
SEE PLANT LIST
SEE PLANT LIST
BR-4
N/A
N/A
3,710
0.75
6.50
5.75
3.25
0.20
SEE PLANT LIST
SEE PLANT LIST
BR-5
N/A
N/A
9,825
0.75
6.30 5.55
3.55
1.55
SEE PLANT LIST
SEE PLANT LIST
1310-RETENTION AREA BR-5 - SECTION
INFILTRATION BASIN 1-3 - SECTION (FA(j'*IN_G_EAST)
SOD SIDE SLOPE ANC BOTTOM
USE STAPLES, TO FIRMLY FASTEN
WIDTH AS REQUIR
GRADE
GRADE
3:1 MAX. 3:1 MAX,
SWALE SECTION
Permanent Seedina Schedule - Mixture
SEEDING MIXTURE
SPECIES RATE (LB/ACRE)
COMMON BERMUDA OR OTHER BERMUDA SPECIES 40
SEEDING DATES
PIEDMONT - APR. 15 - JUNE 30
COASTAL PLAIN - APR. -- SEPT,
SOIL AMENDMENTS
FOLLOW RECOMMENDATION OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE AND
1000 LB/ACRE 10-10-10 FERTILIZER
sEAL
1 ADDED INFILTRATION BASIN SECTION DETAILS FOR 1•-2 AND 1-3 6-13-17
�REV.NO. DESCRIPTIONS DATE
REVISIONS
$io Retention Plant List
SHRUB51
5HRUB51
Orr Habitat Planting Material Series Recommended
Planting Density
Atx1go Moisture Planting Material Species
RCCUmrnehded Platiring Dcrujity
Yaupon Holly (tree form)
I per every 60 S.F.
Dahoon Holly (tree form)
I per every 60 S.F.
Dahoon Holly (tree form)
1 per every 60 S.F.
American Holly (tree form)
1 per every 60 S.F.
American Holly (tree form)
I per every 60 S.F.
Sweet Bay
I per every 60 S.F.
Possumhaw (tree form)
I per every 60 S.F.
Witch -hazel
I per every 60 S.F.
Red Cedar (tree loan)
1 per every 60 S.F.
Devilwood
I per every 60 S.F.
Wax Myrtle (tree Form)
I per every 60 S.F.
Red Bay
1 per every 60 S.F.
Crape Myrtle (non native)
I per every 60 S.F.
Arrow wood (medium)
3 per every 60 S.F.
Redhud
I per every 60 S.F.
Winged Euonymous (medium)
3 per every 60 S.F.
Devilwood
I: per every 60 S.F.
Barberry (medium)
3 per every 60 S.R
Red gay
1 per every 60 S.F.
Sweeeshrub (medium)
3 per every 60 S.F.
Beautyberry
3 per every 60 S.F.
Spicebush (medium to small)
3 per every 60 S.F.
Chokeberry (medium to small)
3 per every 60 S.F.
Itea 'Little Henry' (medium to small)
3 per every 60 S.F.
Anise Shrub (medium to small)
3 per every 60 S.F.
Clethera `Sixteen Candles' (medium tea small)
3 per every 60 S.F.
Dwarf Yaupon Holly (small)
3 per every 60 S.F.
Chokeberry (medium to small)
3 per every 60 S.F.
Bar Habor' Creeping Juniper tirnall shrub/groundcover)
6 per every 60 S.F.
Florida Leucothoe (small)
3 per every 60 S.F.
Strawberry Bush (small)
3 per every 60 S.F.
ORNAMENTAL GRASSESs
Dusty Zcnobia (small)
3 per every 60 S.F,
J_hy Habitat PlannngMaterial Species Recommended
Planting Densi
(merry, (small shrub)
3 per every 60 S.F,
Muhly Grass
3 per every 60 S.F.
Anise Shrub (small)
3 per every 60 S.F.
Panic Grass (large perennial)
3 per every 60 S.F.
Coastal Leucothac (small)
3 per every 60 S.F.
River oats (large perennial)
3 per every 60 S.F.
Indiangrass (large perennial)
3 per every 60 S.F.
ORNAMENTAL GRASSFSt
Miscanthus `Adagio (non native, large perennial)
3 per every 60 S.F.
Avera-ge MoLgture Ranting Material Species
Recoinnrended Planting Density
Panic Grans (large perennial)
3 per every 60 S.F.
P1ER1rNNiALS�
Indiangrass (large perennial)
3 per every 60 S.F.
Maiden Grass cultivars (large perennial)
3 per every 60 S.F.
False Indigo (large)
3 per every 60 S.F.
Switch Grass (large perennial)
3 per every 60 S.F.
Butterilyweed
3 per every 60 S.F.
Orange Coneflower
3 per every 60 S.F.
PERFNNlAILSI
Stella De Oro Daylily (non native)
6 per every 60 S.F.
';�eutge Moisture Platitinp Material Species
Recommended Planting Density
Verbena
6 per every 60 S.F.
Green Headed Conetlower (large)
3 per every 60 S.F.
Moss Phlox (groundcover)
6 per every 60 S.F.
Joe Pye Weed (large)
3 per every 60 S.F.
Tickseed (perennial)
6 per every 60 S.F.
Orange Coneflower
3 per every 60 S.F.
Moen Pinks
6 per every GO S.F.
False Indigo (large)
3 per every 60 S.F.
Rudbeckia
6 per every 60 S.F.
Goldenrod (large)
3 per every 60 S.F.
Planting Recommendations
Swamp Milkweed
3 per every 60 S.F.
For every 60 square feet of Bic) Retention area the following quantities of materials are
Swamp Mallow
3 per every 60 S.F.
suggested:
Green and Gold
6 per every 60 S.F.
Lady Fem
6 per every 60 S.F,
I - large tree form shrub
Mouse Ear Coreop�is
6 per every 60 S.F.
6 - medium to small deciduous and/or evergreen shrubs
Tickseed
6 per every 60 S.F.
3 - ornamental grasses
Swamp Coreopsis
6 per every 60 S.F.
3 - large perennials
Gayfeather
6 per every 60 S.F.
6 - small perennials or groundrovers
Garden Phlox
6 per every 60 S.F.
Moss Pinks
6 per every 60 S.F.
Rudbeckia
6 per every 60 S.F.
Siberian Iris
6 per every 60 S.F.
Japanese Painted Fern
6 per every 60 S.F.
GROUNDCOVERSI
Averaxe Moisture Plantirir Material Species
Recommended Plantink_Density
Liriope (non native evergreen groundcover)
6 per every 60 S.F.
Japanese Pachysandra (evergreen groundcover)
6 per every 60 S.F.
stoke's Aster (perennial ground cover)
6 per every 60 S.F.
LOT LINE (VARIES)
INFILTRATION BASIN
NUMBER
5URFACEAREA
(SO. F')
PONDING DEPTH
(FT)
PONDING ELEV.
TOP ELEV,
BOTTOM ELEV.
M.H.W.L.
1-2
14,291
D.75
4.75
6.00
4.00
1.55
1-3
6,345
0.75
4.35
5.50
3.60
1.55
INFILTRATION BASIN BERM
EL. 7.20
WETLANDS LINE
EL. 4.75 f
3
1 1 3 EL, 4,00
INFILTRATION BASIN 1-2 - SECTION (FACING WES
LOT
LINE
AGGREGATE
FOR
PARKING PERVIOUS CONCRETE GRASS BUFFER
EL 7.00 SUPERELEVATE (TYP)
00 0 00 000000000� i 4TLY I�'•� •�+'N'�{x {'• �;,,•t'+'S'�1 .... �i ���q w.•'<<,�. +, ' S••' ..
4" ao 0000 0 0 0 o
O tO i� !° :,{7 ar•.ti.? .;.. ;fs' aR [•«
4ovoark,tit
OO000 000060000000
OOO O •
EL 6,65 O O 800OO • %,•ref:•.•J�4s/•�•'R•.ti{tti;.J wr�, �
•;.y
'
`
`c
ASPHALT (TYP)
EL. 6.15 •'f,
EL, 4,65 ::; "c, # 57 WASHED
STONE
EL. 4.15 " =' 18" PERFORATED HOPE
_..
::.,..,.,' :. :.:..'...'::.. .:::...... ..............'............. ..:='... "", ,1�1. CORRUGATED PlE
............'•'•''•'-':..........,..,...............
4' ............
• ...._... (HANCOR SURE-LOK
• F477 OR EQUIVALENT
_l' 1,~ ;._$` },. .,<• "'` :i'' _ (TYP)
i.• £•• •r.";•} ..r. ••3. ": .�t;+ MIN. 2
GEO-TEXTILE �;.• - ;:. ,,. ;, ::
FILTER FABRIC •� 'y' ; =„.
(TYP) :r', +; :.A.';�.',;: :M.S W.L. ._•:'. :4 r,-�.�,EL 0.20•
` 1 4
4" CLEAN DENSE
INFILTRATION SAND FILL
SOIL
INFILTRATION TRENCH
SECTION B-B
MFMM&CUED
200 MacKenan Court, Suite 200
Cary, North Carolina 27511
Phone: [phone], Fax: [phone]
AA0002667 EBOD06691
www.mckimcreed.com
GRASS
BUFFER
(TYP)
EL 6.7
GEO-TEXTILE
FILTER FABRIC
(TYP)
GRASS
BUFFER
STRIP
INFILTRATION/ -
BIO-RETENTION
AREA
6"
AV
4•• MIN.
#5 REBAR '
2' LENGTH MIN.
3 PER 8' LENGTH OF LIP
OUTFLOW-- - s
NATURAL
GROUND
SHEET FLOW TO WETLANDS
RIGID LIP
6" X 6" TREATED TIMBER
8' MIN. LENGTHS
LEVEL SPREADER -TYPE I
me OUTFLOW
MATERIAL STAPLED 6„ 6'
IN PLACE
UNDISTURBED
MATERIAL
12" WIRE STAPLES
6" INTERVALS
INFLOW
FILTER FABRIC
6:1 MIN. 3:1 MIN.
BURIED 6" MIN.
LEVEL LIP OF SPREADER
LEVEL SPREADER -TYPE 11
CONSTRUCTION SPECIFICATIONS
1. THE MATTING SHOULD BE A MINIMUM OF 4 FT WIDE EXTENDING 6 INCHES
OVER THE LIP AND BURIED 6 INCHES DEEP IN A VERTICAL TRENCH ON THE
LOWER EDGE. THE UPPER EDGE SHOULD BUTT AGAINST SMOOTHLY CUT
SOD AND BE SECURELY HELD IN PLACE WITH CLOSELY SPACED HEAVY
DUTY WIRE STAPLES AT LEAST 12 INCHES LONG.
2. ENSURE THAT THE SPREADER LIP IS LEVEL FOR UNIFORM SPREADING OF
STORM RUNOFF,
3_ CONSTRUCT THE LEVEL SPREADER ON UNDISTURBED SOIL (NOT ON FILL).
4. CONSTRUCT A 20-FT TRANSITION SECTION FROM THE DIVERSION CHANNEL
TO BLEND SMOOTHLY TO THE WIDTH AND DEPTH OF THE SPREADER.
5, DISPERSE RUNOFF FROM THE SPREADER ACROSS A PROPERLY STABILIZED
SLOPE NOT TO EXCEED 10%. MAKE SURE THE SLOPE IS SUFFICIENTLY
SMOOTH TO KEEP FLOW FROM CONCENTRATING.
6. IMMEDIATELY AFTER ITS CONSTRUCTION, APPROPRIATELY SEED AND MULCT••!
THE ENTIRE DISTURBED AREA OF THE. SPREADER.
16" I_ 2' 14
20 FT R
NATURAL
GROUND
• FAS REQUIRED BY DESIGN FLOW
•
CONCRETE FLUME - TYPICAL SECTION
ncd�nnl lc ('•lll.Ift�ETC
INFILTRATION-- SAND FILL v�
SOIL INFILTRATION TRENCH W/ BIO-RETENTION AREA
RECEIVED
J U N 19 2006
DWQ
PROD #
SHEET FLOVL
J ILAyG
PERFORATED HDPE
CORRUGATED PIPE
(HANCOR SURE-•LOK
F477 OR EQUIVALENT
(TYP)
T
IN, 2'
RIVER DUNES DEVELOPMENT
STORMWATER DETAILS
DATE:
MAY 2006
MCE PROD. #
4135-0002
DRAWN
GCA
DESIGNED
CM6
CHECKED
GML
PROD. MGR.
GML
Mir)....I7G' TC nITlflnl
SCALE
McC FILE NUMBER
CG501
HORIZONTAL:
DRAIMNG NUMBER
NA
VERTICAL:
D4
NA
srnrus: FOR PERMIT REVISION
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