SW7060729_APPROVED PLANS_20060912

11
STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW Y-aLY2!7
DOC TYPE
❑ CURRENT PERMIT
ED APPROVED PLANS
❑ HISTORICAL FILE
DOC DATEJJ�J/,
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PROJECT#: 1060035-01
DATE: 08/30/06
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1 7/20/06 RELEASED FOR STORMWATER PERMIT G
2 8/30/06 REVISED PER PERMITTING COMMENTS
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DIRECTION - » ---- » REV.
0 6/15/06 PRELIMINARY PLAT SUBMITTAL S ` � x PROJECTMGR: W RNERSOUND PROJECT
ENGINEERING, INC. CHOWAN COUNTY, NORTH CAROLINA
1 7/20/06 RELEASED FOR STORMWATER PERMIT 112 DEIGNED BY: Dw
LEVEL SPREADER L S 4301 TAGGART CREEK ROAD
CHARLOTTE, 2 8/30/06 REVISED PER PERMITTING COMMENTS RLOTTE, We 2sza8
j1 ,�,�'� DRAWN BY: DW
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REVISIONS
REV. DATE COMMENTS col QSHIELD
0 6/15/06 PRELIMINARY PLAT SUBMITTAL SEAL
7f20/06 RELEASED FOR STORMWATER PERMIT 11260 ENGINEERING, INC.
� 4301 TAGGART CREEK ROAD
2 8/30/06 REVISED PER PERMITTING COMMENTS r CHARLOTTE, NC 28208
.+► , 704-394-6913
4owgfi+nubook f y� J�+ 704-394-6%8 FAX
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PROJECT#' 1060035-01
DATE: 08/30/06
PROJECT MGR: KAA
DESGNED BY: DW
DRANN BY: DW
SCA_E: 1 " = 159
WATERFRONT GROUP
RIVERSOUND PROJECT
CHOWAN COUNTY, NORTH CAROLINA
STORMWATER PLAN
SECTION 2
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DIRECTIOND RIVERSOUND PROJECT
0 6/15/06 PRELIMINARY PLAT SUBMITTAL � SEAL PROJECT MGR: KM
11260 x ENGINEERING INC. CHOWAN COUNTY, NORTH CAROLlNA
LEVEL SPREADER L S 1 7/20/06 RELEASED FOR STORMWATER PERMIT DESIGNED BY: Dw
4301 TAGGART CREEK ROAD
2 8/30/06 REVISED PER PERMITTING COMMENTS CHARLOTTE, Zs2os DRAWN BY: Dw
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LIST
OF
ACCEPTABLE
TREES
Table 4A REGOMRMllED PLANT SPECIES FOR USE IN BIORE7UNTION --- TREE SPECIES
Species
Moisture Repme
Toknum
Mar f
Gatad
Characrerhstiq
_
Scientific Name indicator Habitat
Pondius
.,
Salt Oitf .�Metats Inserts
..
lirtWIR= Form Height Root Native Wildlife
rf� NAW10 Cr>,hi
fimi.e
Cverem
Acrer nc8mar
FAC
Mestie -
4.6
H
H
H
H
Partial Sure
Single to multi-
30-70'
Shallow
Yes
High
red
Hydric
stem tree
AmelawJgercosadewis
FAC
Mesic
2-4
H
M
-
H
Partial Sun
Single to multi-
30-SW
Shallow
Yes
High
shat"rualt
atom tree
Basta nigm
FACW
Mesic to
4-6
-
M
M
H
Partial Sato
Single to multi-
50-75'
Shallow
Yes
Med
river birch
Hydric
stem tree
Benda papalifvlia
FAC
Xeric-
4-6
H
H
M
H
Partial Sun
Single to multi-
35-50'
Shallow
Yes
High
jigmy birch
Hydric
atom tree
to deep
Froxinut eanedcam
FAC
Mesic
2-4
M
H
H
H
Sun
L&W tree
50.80'
Deep
Yes
Low
white ash
Pmxbw peunsy1 wnhca
FACW
Mesic
4-6
M
H
H
H
Partial Sun
I arga tree
40-65'
Shallow
Yes
Low
green rah
I
I
I
to deep
I
Ginkgo hilow
FAC
Mesic
24
H
H
H
H
Sun
Large tree
50-80'
Shallow
No
Low
Maddenhair tree
to deep
Gkdirsla viacawhos
FAC
Mere
2.4
H
M
-
M
Sun
Small canopied
50-75'
Shallow
Mess
Low
honeylocust
large tree
to deep
taproot
Juniperus vlrglniana
FACU
Mesic -
24
H
H
-
H
Sato
Dense single
50.75'
Taproot
Yes
Very
eastern red coda
Xeric
stem tree
High
Kadrowerk ponkalare
FACU
Mesic
2-4
H
H
H
H
Sun
Round. dem
20.30'
Shallow
No
No
Idetwtsin tree
shade tree
Ligrridanrbar aymcfflua
FAC
Mesic
4-6
H
H
H
M
Sun
Lap tree
50-70'
Deep
Yes
High
sweet bum
toroot
Nyssa sy w1ka
FACW
Magic -
4-6
H
H
H
H
Sun
Large on
40-70'
Shallow
Yes
High
black gum
Hydric
to deep
Plafanas acerfolia
FACW
Mesic
2-4
H
M
Sun
Large um
70-90'
Shallow
No
Law
London one -tree
Pked" S aafdenaslis
FACW
Mesic -
4.6
M
M
M
M
Sun
Imp tree
7040'
Shallow
Yes
Met
sycamon
I
Hydric
PopWas dehoides
FAC
Xedc -
4-6
H
H
H
L
Sun
tree with
75-
Shallow
Yes
MIA
eastern wamwood
Mesic
spreading
100'
Pyrnr calkryaaa
RAC
Mode
2-4
H
H
H
H
Sun
Dame shade
30-30'
Shallow
No
Low
tree
to
Q-mw hawk
FACW
Mesic to
4-6
H
-
H
H
Sun to partial
Large tree
75-
Shallow
Yes
High
a white oak
wet Mesic
sou
100'
_Lwn
f Qaercus oeocbwa
FAC
Mesic
1-2
H
M
M
M
Son
Imp tree
50-75'
Shallow
Yes
High
scarlet oast
a
to im
Quereas nWrocarpa
FAC
Mesic to
2-4
H
H
H
M
Sun
Large
75-
Taproot
No
High j
i bur oak
wet Mesic
spMadisum
100'
Quercaspalustrla
FACW
Maio-
4-6
H
H
H
M
Sun
Large tree
60-60
Shallow
Yea
High
Pin oak
Hydric
to deep
Qrrercus phdios
FACW
Mesic to
4-6
H
-
-
H
Sun
Large tree
55-75'
Shallow
Yes
High
willow oast
wet Mesic
Qrrerwm rabro
FAC
Mesic
2-4
M
H
M
M
Sun tD paNal
Large
60.80'
Eke P
Yea
High
sun
tree
LIST OF ACCEPTABLE SHRUBS
Table 4.3 RECOMMENDED PLANT SPECt8S FOR USE IN BIORBTENTION --- SHRUS SPECIES
Species
Moisture Regime
Tohereoce
Morphology
General
"slip
sclenr* Name bulicata Habitat Ponding Salt ow Metals inaecta F,rcposm Form Height Root Native Wildh*
Common Name Status Grease Systoin
Bedwris kareaw
FAC
Mastic
24
H
H
H
M
Sun to partial
oval SIMI!)
4.6'
Shallow
No
Low
barberry
Shade
Berberfs rhrarbergii
FAC
Mesic
24
H
H
M
M
Sun
Rounded,
5-7'
Shallow
No
Merl
Japanese barberry
Broad. dense
shrub
Clethra aim*&
FAC
Mesic to
2-4
H
-
-
H
Sun to partial
Ovoid alxub
6-12'
Shallow
Yes
Met
sweet peamtLm
wet mesic
Shoran
Corms srol xwre
FACW
Mesic -
24
H
H
H
M
Sun or Slunk
Arching,
8-10'
Shallow
Yea
High
red osier der
H c
Speading
Eironynws Aaofs
FAC
Mesic
1-2
H
H
H
M
Sun or shade
Fiat, dome,
5-7'
Shallow
No
No
wlnted etionymous
horizontal
Buarrynuir amopacus
FAC
Mesic
1-2
M
M
M
M
Sun to partial
111"gh t dense
10-12'
Shallow
No
No
spiridie-tree
shade
oval shrub
Hamamons wrginia
FAC
Mesic
24
M
M
M
M
Sun or Shade
Va•e-lilte
4.6'
Shallow
Yea
Low
w1uh—hatel
conma shrub
Hypericum dens( nun
FAC
Mesic
2.4
H
M
M
H
Sun
Ovoid Shrub
3-6'
Shallow
Yes
Mod
oor®on St. John's wart
fkxglabra
'FACW
Mesic to
2.4
L
M
H
Sun to partial
Syreading
6-12'
Shallow
Yes
High
ink
we Mesic
sun
shrub
lies verdedlate
FACW
Mesic to
2-4
L
M
H
Sun to partial
Spreadittg
6-12'
Shallow
Yes
High
wi
wet Mesic
sun
shrub
Jrsrdpems Conrsuaais
FAC
Dry Mesic
1-2
M
H
H
M-H
Sun
Mounded shrub
3-6'
Dap
No
High
"conrressa"
to Mesic
taproot
hartperas horisaaraGs
FAC
Dry Mesic
1-2
M
H
H
M-H
Sun
Matted shrub
0.3'
peep
No
High
Bar Harbor"
to Mesic
taproot
Lhukm benzoin
FACW
Mesic to
2-4
H
-
-
H
Sun
Upright shrub
6-12'
Deep
Yes
High
wet Mesic
Myrica pewssylvanica
FAC
Mesic
2-4
H
M
M
H
Sun to partial
Rounded,
6-8'
Shallow
Yes
High
baybarry
sus
compacted
shrub
Phpvora►prs oindowires
PAC
V" Mesic
2-4
M
-
-
H
Sun
Upright shrub
6-IT
Shallow
Yes
Mod
nhnebafk
to war
Mesic
Viburnum casshtoides
FACW
Mesic
2-4
H
H
H
H
Sun to partial
Rounded,
6.8'
Shallow
Yes
High
northKm wild raisin
sun
compacted
shrub
Viburnum dentairorr
FAC
Mesic
2.4
H
H
H
H
Sun to partial
Uprilglat, BMW-
8-10'
Shallow
Yes
High
arrow -wood
I
I
sun
stemmed sluttb
rhunwm o
FAC
Mesic
2.4
H
H
H
H
Sun so partial
U -
&10'
Shallow
Yes
High
GENERAL NOTES
1. SELECTION OF TREES, SHRUBS, AND "GROUND COVER" SHALL BE SELECTED AT THE TIME OF PLANTING BY THE
LANDSCAPER/CONTRACTOR DEPENDING ON APPEARANCE, AVAILABILITY, PRICE, AND HABITAT COMBATABILITY.
FINAL APPROVAL ON ALL PROPOSED PLANTINGS MUST BE APPROVED BY THE OWNER PRIOR TO ANY WORK BEING
STARTED IN EITHER BIO-RETENTION AREAS.
2. TOTAL NUMBER OF PLANTINGS (TREES AND SHRUBS) MUST BE MET PER CHART FOUND ON THIS SHEET.
3. ALL CONSTRUCTION AND SPECIFICATION STANDARDS AND DETAILS SHALL CONFORM TO THE NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STORMWATER BEST
MANAGEMENT PRACTICES MANUAL.
AREA DRAIN SHOULD HAVE A GRATED TOP AND BE ABLE TO SECURELY ATTACH TO 6" PVC PIPE. (EX. IS THE
'NYOPLAST' 8" INLINE DRAIN TOP W/ 6" ADAPTOR AS MANUFACTURED BY ADVANCED DRAINAGE SYSTEMS, INC.,
WWW.ADS-PIPE.COM)
5. MATTING IS TO BE PLACED AT THE OUTFALL OF THE "OVERFLOW" DRAIN PIPE IN ORDER TO ELIMINATE STORM
FLOW EROSION ALONG THE EXISTING BANK, SEE WWW.NAGREEN.COM FOR PRODUCT DETAILS.
EPTABI.E-GRQt�COVE€R
Table 4.5 RECONWID DED PLANT SPECIES FOR USE IN BIOREIENTION —HERBACEOUS GROUND COVER
Species Moisture Regime Tolerance Motphology General
Characteristics
Scient fe Name hulicator Habitat pandi ig Salt Oil! Metals Insects Exposure Form Height Root Native Wildlife
r-........I M.— c..-.. ft.....r gvetam
Asrostis alba
FAC
Mesic -
1-2
H
-
H
H
Shade
(bus
2-3'
F'ibesnus
Yes
High
ateric
Shallow
Aadtropogan;e►ardE
FAC
my Mesic
172
-
Sun
Grass
2.3'
Fiberous
Yes
High
- Mesic
Shallow
Desehantpaia cures ftm
FACW
Mesic to
2-4
H
-
H
H
Stint
Grass
2-3'
Fiberous
Yes
Mod.
tufted
wet Mesic
Shallow
Hedera ficur
FACU
Mesic
1-2
-
H
Sun
EverFouad
-
Fiberous
No
Low
En ly
around cover
Shallow
Lorry Corniwdarua
FAC
Mesic -
1-2
H
L
H
H
Sun
Glass
2-3'
Fiberous
Yes
High
bitdsfoor-trefoil
Xeric
Shallow
Pachymadra rernrinalis
FACU
Mesic
1.2
-
M
Shade
Evergreen
-
Fibernas
No
Law
J padr 'a
aroutail cover
Shallow
Parkum very tom
FAC to
Mesic
2-4
H
-
-
H
Sun or Shade
Grass
4-5'
Fiberous
Yes
High
Switch sm
FACU
Shallow
Panherrodsarrs
FACU
Maisie
1-2
-
-
H
Shade
Eva firm
-
Fiberous
No
Low
Tricuspida
h3oston
grouad cover
Shallow
Nitres naVor
FACU
Mesic
1-2
-
H
Slade
Evergreen
-
Fibernus
No
Low
1 'witrkla
I
I
around cover
Shallow
Vines Minor
FACU
Mesic
1-2
-
-
H
I Shade
Evergreen
Fiberous
No
Low
Comm riwinkksround
I
covef
Shallow
6" Pvc
BIO-RETENTION AREA #2 PROFILE
SHEET FLOW
GRASS
lilAhi� OF euFF E,R
PAVEMENT
MAX. PONOED `
WATER DEPTH
(12 INCHES)'-7
;ROUND COVER OR
MULCH LA EF;
� I
I
! L-►PLANTING 501E —� 2' ! IN.
BORROW AREA OWSfTF"
IN-SIiU MATERIAL
810RETENiIaN AREA --�
BIO-RETENTION AREAS PROFILE
1 /8" RADIUS �9" �3/4"
RADIUS
� a
v 1 3/4" RADIUS °
4 A
- d e. � v.
�----1 ' — 6'=--►�
MOUNTABLE CURB
1'-6 1
/8" RADIUS B1�FFE�
GRASS PAVEMENT FLOW
0 0 0
d 0 000
o0
00000 00 0 0,
. O
a TY'PICAL' d
4 GUTTER,
c (NO CURBING�-
CU RBI NG DETAILS
REVISIONS
REV. DATEI COMMENTS
0 7/20/061 RELEASED FOR STORMWATER PERMIT
VEGETATED BERM
H=1.5' MIN.
LIM.—
.RFLOW
UTLET y 1Z5
PARKING AREA
OVERFLOW
GRASSED
BUFFER
AREA
C
BIO-RETENTION AREA #1 DETAIL
MOUNTABLE
CURB & GUTTER
(SEE DETAIL)
6" PVC
OVERDRAIN
OUTLET PIPE
19
/� GRASS
BUFFER
AREA (NO
CURBING)
+/— 4
MOUNTABLE
URB & GUTTER
GRASS
BUFFER
AREA (NO
CURBING—
S DETAIL)
B.I.0-RETENTION AREA #2 DETAIL
*NOTE: FOR PLANTING SOIL REQUIREMENTS AND SPECIFICATIONS, SEE SECTION 4.15 (PLANTING SOIL GUIDELINES)
OF THE NCDENR DIVISION OF WATER QUALITY STORMWATER BEST MANAGEMENT PRACTICES DESIGN MANUAL.
...relmnnR►/H�Q�
RO y,
r�
SEAL -
SHIELD
? _ ENGINEERING, INC.
4301 TAGGART CREEK ROAD
0 ;a CHARLOTTE, NC 28208
y'�'rr, A•' ` sa•' 704-394-6913
`'fNwwawur"aCC. 704.394-6%8 FAX
www.shieLdengineering.com
PROJECT#:1060035-01
DATE: 07/20/06
PROJECT MGR: KAA
DESIGNED BY: DW
DRAWN BY: DW
SCALE: AS NOTED
WATERFRONT GROUP
RIVERSOUND PROJECT
CHOWAN COUNTY, NORTH CAROLINA
STORMWATER PLAN
DETAILS
DRAWING
SW-5
,1 7

CULVERT 111"
:.l -..u-. i! 1 j'r 5 iu L1
CULVERT 114"
CULVERT "11"
"lp u
6©x 18c�
PROP. GRADE
0 CL
PIPE
10
51::-2
" CAP
0 0.
8%
2 7• P
LL
PIP
5
1
v
z.
I
MF1
i
U.
mto
Q?
M
r 4
A
o>
on
_
_
CULVERT "2"
„
V)
R
U
s
I
"
M
.--A
I
M
5
jr,
Oil
1 E CMP
0
,.
EX. GRADE
@
CL PI
E
A
CULVERT "3"
PROII.
GRADE
Q CL PIPE
\�
54 -36
CAP 0
i.74%
i
2%FULL
____
----
APPRO
LOC.
X
EX. 1
CMP
f
,
EX. GRA
E CL
IPE
V)
°-
0
Q
a
L
R
M
LL
z
n
r-
N
5
o-
A
P.
EX_
GRADE
@
CL PIPE
5
50 -24 C
P 0 0.8
4
�r--,
20%
FULL
4-1
V
I
APPROX.
LOC.
EX
18"CMP
W
z •O
Lu
>
>
A
IT$
r�
CULVERT 116"
PROP.
GRADE
0 CL PIP
EX. GRA
E
@ CL f
11PE
c
--
20% FU
L
5
I/
cV 1
'
GMP
V)
V)
0
d
a
c�
q
N
N
W
Lo
,
5
r
O
I
r
-
C�
STORM EASEMENT
4WA16E PROFILE (TYPICAL)
Ng1,E:THE STAPLE PATTERN FOR THE NETTING SHALL
FOLLOW THE MANUFACTURER'S INSTALLATION SPECIFICATIONS.
NOTE 1: THIS PROFILE DEPICTS SWALES AS SHOWN ON DRAWINGS SWA THRU SW-4.
MOTE 2: ALL SWALES SHALL INCLUDE A LEVEL SPREADER (SEE DETAILS -THIS SHEET) CONSTRUCTED
AT THE LOWER END OF EACH IN ORDER TO PROPERLY DISPERSE THE STORM RUNOFF PRIOR
TO REACHING THE WETLANDS AND/OR MAIN CHANNEL,
NOTE 3: A LEVEL SPREADER SHALL ALSO BE CONSTRUCTED BELOW THE OUTLET PIPE TO THE
BIO-RETENTION AREA #2.
I
i4�
PROP. G
DE
CL
PIPE
EX.
GRADE
0
CL PIPE
10
52
-18" CAP
0 1.35%
----
W
f i
z
Lu
M
4�
>
>
o40-
o�-
EASEMENT
,1
CULVERT COMPUTATIONS
I
Culvert
#
Drainage
Area Ac
04 "i"
Value Intensi
11Q"
Flow
No.
Culverts
Diameter
in.
Type
Len th
g
ft.
Sloe
P
Inv. U
( pper)
ft.
Inv. (Lower)
ft.
1
HEC-RAS COMPUTATIONS
3
24
C.A.P.
51.0
0.78%
4.30
3.90
2
5
36
C.A.P.
54.0
0.74%
-0.20
-0.60
3
3
36
C.A.P.
54.0
0.74%
3,10
2.70
4
3
24
C.A.P.
50.0
0.80%
1.80
1.40
5
3
15
C.A.P.
50.0
0.80%
8.50
8.10
6
3
27
C.A.P.
54.0
0.00%
2.55
2.55
7
1.49
0.30
6.90
3.08
2
18
C.A.P.
50.5
0.99%
7.00
6.50
8
1.81
0.30
6.90
3.75
1
18
C.A.P.
52.0
0.96%
5.50
5.00
9
1.45
0.30
6.90
3.00
3
18
C.A.P.
52.0
0.96%
7.00
6.50
10
4.78
0.30
5.50
7.89
2
18
C.A.13,
52.0
0.96%
8.50
8.00
11
10.48
0.30
5.90
18.55
4
18
C.A.P.
52.0
1.35%
5.30
4.60
12
1.14
0.30
6.90
1 2.36
2
18
C.A.P.
57.2
0.87%
10.60
10.10
13
1.85
0.30
6.70
3.72
2
18
C.A.P.
54.7
0.91 %
7.50
7.00
14
3.69
0.30
5.90
6.53
3
18
C.A.P.
52.0
0.96%
8.50
8.00
15
1.67
0.30
6.90
3.46
3
18
CA.P.
52.0
0.96%
9.50
9.00
16
2.90
0.30
6.70
5.83
2
18
C.A.P.
50.0
1.00%
6.50
6.00
17
2.17
0.30
6.70
4.36
2
18
C.A.P.
52.0
1 0.96%
8.00
7.50
18
4.12
0.30
6.70
8.28
3
18
CA.P.
54.0
0.74%
7.40
7.00
19
1.30
0.30
6.80
2.65
2
18
C.A.P.
50.0
2.00%
7.25
6.25
20
1 1.75
0.30
6.90
3.62
2
18
C.A.P.
58.0
0.86%
4.25
3.75
21
1 1.69
0.30
6.50
3.30
2
18
C.A.P.
52.0
0.96%
6.50
6.00
2 0'
20' l FKupusLu E v' I TRANSITION AREA
LEVEL SPREADER
10'
�I
1 U' SPREADER 3i-----'T
DRAINAGE CHANNEL (TYPICAL)
STRAW MAT LINER (CAPABLE OF A
NQU: THE STAPLE PATTERN FOR THE LINER SHALL
FOLLOW THE MANUFACTURER'S INSTALLATION SPECIFICATIONS.
REVISIONSp1►Rh*q�Hyn
A.,,A CARO�iy-,,
REV. DATE COMMENTS �ass�oM 'y-� 1Z ~..
0 7/20/06 RELEASED FOR STORMWATER PERMIT a SEAL 5 ENGINEERING,
SHIELD
1 112 INC.
4301 TAGGART CREEK ROAD
CHARLOTTE, NC 28208
A 704-394-6913
704-394.E%8 FAX
i www.shieidengineering.com
PROJECT#:1060035-01
DATE: 7/20/06
PROJECT MGR: KAA
DESIGNED BY: DW
DRAWN BY: DW
SCALE: H1"=15' V1"=3'
8TAWL12ED CVTLET
BAST 2WOF EX U-1ANIEL
NOT TO EXEEEO 1X
's-6-W PRESSM TREATED TNYKR.
KAE:ED LEVEL W ALL 00ECT04.
LENGTH AS SKCET DE
PEf?ROCP_IiK V"
LEVEL LOP OF . �^
SPIREAUR
ANCHOR TPA" WITH 'M. I
I�AR SPA�EJ AT �•
CROSS
WATERFRONT GROUP
RIVERSOUND PROJECT
CHOWAN COUNTY, NORTH CAROLINA
STORMWATER PLAN
CULVERT PROFILES Et DETAILS
DRAWING
SW-6
� - r 1 i ; - -', 7 � I�A'. r i ,: -- - '';j,,,•, '.;•'•s ,.x f ! L .� V: r I� ° 4: ��1 � i! f. ��
� t � � f 1. 1 � i•�1 t � ., � + � t:. 3 t a! 1 3r � iT I 1 i t ry ,f � ,
�'+! •`�11 1 •{� Ilf I , It! �� '� 1 ,' _, � y 1.;ItlH �r�t� f 1 vl t ,

r m 1;�_ SW, -76&d 7a9
+ + + + + + + t + + + + + + + +
+++;; +++++++ GRASS (PERVIOUS) SURFACES
++++++++++++++++
++++++++++++++++
+ d. + + + . + + i i i + + + +
........... +
LEVEL SPREADER LS CHANNEL W/FLOW
0 » » --
DIRECTION -
6.0 VEGETATIVE PLAN
Table 6.11b
Key to Permanent Seeding Mixtures Based on Site Characteristics
This site is located along the coastal plain and because of the minimal mowing which will be
performed at this site, the grass cover is considered as low maintenance. Referencing the attached
Region and Site Characteristics t
Seeding
Table
Table 6.11 b of the North Carolina Erosion and Sediment Control Design Manual the appropriate
I. Mountains
Number
(6.11)
Seeding Number of 5CP, which is shown on the attached Table 6.11 t, should be used for seeding at
A. Steep slopes (steeper than 3:1); low maintenance
this site.
1. Average soils ........... ............. .....1
M
c
2. Cold sites or rocky, rough, dry soils ........... ...... r
2M or
d
.. ... ............ ..................
7M (trees)
i
The angle for graded slopes and fills shall be no greater than the angle that can be retained by
B. Gentle slopes (3:1 or less)
vegetative cover or other adequate erosion -control devices or structures. Ground cover shall be
1. Low maintenance
placed on exposed slopes within 21 calendar days of completion of any phase of grading, be planted
a. Average soil ...... .... ..................3M
e
or otherwise provided with temporary or permanent ground cover, devices, or structures sufficient to
b. Rough, rocky, dry soil .......................
.... ..... ... ..... ..................
2M or
7M (trees)
d
i
restrain erasion.
2. High maintenance
a. Full sun, soils with good moisture retention ..... , . .....
4M
f
Seedbed Preparation
b. Full sun, drought -prone soils ....................
c. Sun or semi -shade, minimum -care lawns ..... r .......
5M
6M
g
h
C. Grass -lined channels ......... ....... ...........
SM
j
1. Remove rocks and debris that could interfere with tillage and the production of a uniform
ll. Piedmont
seedbed.
A. Low maintenance
2. Break up large clods and rake into a loose, uniform seedbed.
1. Steep slopes or stony, shallow or dry soils . .............1
P
k
3. Rake to loosen surface just prior to applying seed.
2. Gentle slopes with average or better soils ..............
2P
1 .
B. High maintenance (slopes less than 3:1)
d. Apply lime and fertilizer at rates recommended; spread evenly and incorporate into the top 6"
1. Cool sites; soils with avers a or better moisture retention .. ....
3P
m
with a disk, chisel plow, or rotary tiller.
2. Warm sites; dry, poor soils ......................
4P or 3CP
n, r
C. Grass -lined channels
1. Soils with average or better moisture retention . .......... ..
5P or 8M
o, j
2. Full sun, drought -prone soils .....................
7CP
v
Seeding Methods
III. Coastal Plain
A. Well- to poorly -drained soils with good water -holding capacities
l . Broadcast seed at the recommended rate with a cyclone seeder, drop spreader, or cultipacker
1. Low maintenance .. ... ....... ...............
1 CP
p
seeder.
2. High maintenance ... . .......................
20P
q
2. Rake seed into the soil and lightly pack to establish good contact.
y p g
S. Well -drained sandy foams to excessively well -drained sands
1. High maintenance, fine turf ...................... 3CP
r
2. Low -to medium -care lawns ............... .......40P
s
Mulch3.
Low maintenance .. .............. . ........ .. 5CP
t
Apply grain straw and tack as recommended.
C. Intertidal zones of estuarine shorelines, dredged
material, and graded areas in salt water ................. BCP
u
D. Grass -lined channels ...........................
70P
v
Maintenance
E. Coastal sands exposed to salt spray
Reseed, fertilize and mulch as necessary.
and/or wind erosion ... . ........................ see Table 6.16a
i Refer to Table 6.11 a for soil suitability limitations.
Table 6.11t
Seeding No. 5CP for:
Well -Drained Sandy Loams to
Dry Sands; Low Maintenance
PROPOSED ROAD CROSS SECTION (TYPICAL,
REVISIONS PROJECT#:1060035-01
COS/ DATE: 08/30/06
REV. DATE COMMENTS�o�,Gssro,`�'-y
0 8/30/06 REVISED PER PERMITTING COMMENTS SEAL = SHIELD PROJECT MGR: KM
11260 = ENGINEERING, INC. DESIGNED BY; DW
G 4301 TAGGART CREEK ROAD
CHARLOTTE, NC 28208 DRAWN BY: DW
704-394-6913
704-394-6968 FAX
www.s
hieidengineering.com shieidengineering.com SCALE: Ii" - XY
Seeding mixture
Rate (lb/acre)
Pensacola Bahiagrass 50
Sericea lespedeza 30
Common Bermudagrass 10
German millet 10
Seeding notes
1. Where a neat appearance is desired, omit sericea.
2. Use common Bermudagrass Orly on isolated sites where it cannot be
come a pest. Bermudagrass may be replaced with 5 lb/acre cen-
tipedegrass.
Seeding dates
Apr. 1 • July 15
Soil amendments
Apply lime and fertilizer according to soil tests, or apply 3,000 Ib'acre
ground agricultural limestone and 500 lb/acre 10-10-10 fertilizer
Mulch
Apply 4,000 lb/acre grain straw or equivalent cover of another suitable
mulch. Anchor by tacking with asphalt, roving, or netting or by crimping
with a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
Maintenance
Refertilize the following Apr. with 50 Ib/acre nitrogen- Repeat as growth re-
quires. May be mowed only once a year. Where a neat appearance is
desired, omit sericea and mow as often as needed.
'Refer to Appendix 8,02for botanical names.
WATERFRONT GROUP
RIVERSOUND PROJECT
CHOWAN COUNTY, NORTH CAROLINA
STORMWATER PLAN
DETAILS
DRAWING
SW-7
7.,7
k.k .,....-, .. ... . � .. .. .. .. .. ..<.. � :. ... �. � , .. .. .. r.r ...�,.r 1. _ f, ,h.r I�. i,a., '.1i