SW8120204_APPROVED PLANS_20120216

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
�Z(p
YYYYMMDD

1
1
11
1
Il
1
1
1
11
11
11
**"Prior to construction - Field Verify***
Existing & proposed elevations,
Including ground elevations at adjoining
property lines, provide for proposed
grading. Notify engineer immediately
should conflicts exist.
S i *EL=29.95
S
C.1ass 8 &0won conbw Stone ))p)
Over AASHM M2a8 QL4SS 1
WOWN CE07MLE
(aft x loft Minimum at await
terminus)
Monitor d• RWhf*m* as Needed
100'
N/F
David M. Pearson, LLC
DB. 2500, Pg. 821
BUA
Existing Proposed
9,233sf 3,698sf
Total Lot Area
44357,29 sq, f t
1.018 Acres
Legend
PROPOSED FINISH GRADE 47.
EXISTING SPOT ELEVATION
PIPE LABEL
EXISTING BUA L��
PROPOSED BUA 4
+
Boundary, Area & Topographic Survey provided by.
Charles Rawls & Associates
urr tw■.et i �e�c I�
pdp�uu946�m ��4
N/F
Swansboro Soccer Association, Inc.
DB. 2098, Pg. 283
+EL=28.19
* EL=30.31
A�
Q*EL=31.90
Q
0
*EL=3e.36 L3
I Sand'
Filter
277sf
Sed Bus
248sf
TeMp�
Storage
5t5.25sf
,2,834cf
Roof Gutters
Shall Discharge
ALL Runoff
from Roof onto
rVi•� -
Concrete Drive
rrereby t0
ere
,
Trench Drain 4)
EIS ro
,1 Ppr
W/ 50 z50' Min WOETA TED
FILTER STRIP (VFS)
(Provide 3h:1v Max cut -slope
from existing grade to VFS)
* EL-32.25
ns' MW Sautter
Inv Out-29.00 (To System)
Weir Elevotlon -31.2
«EL=32.47
ow
*EL-27.51
*EL=29.02
_ EIS
103.81 '
o �
a. �S
'��•
prop Inlet 2
'00
y��Q O-
Q' a
32.35 Top
o O
• CQ t
30.35 Inv Out
cK ;d
Drop Inlet 3 •. , •� �"
32.35 Top �
30.20 Inv Out
Junction do . • -
Conflict Box . Q ,�-= -
In v 29.80 _-
See Data# on N _
Sheet f2 of 2
f 0 h : ---- --- ►`rc ¢
1
Trench Drain
32.90 Top
32.23 Inv Out cew
SnO.020 Wit
��.
2 Exletng
12"0 CPPs to
Bypass (west) side
Of Box
(Ex Inv elev = 31.20)
Reduce & extend existing
12"0 CPP thru Box Partition
wi 8" 0 PVC Pipe
NOTE Revision Date (113112012)
& Discard ANY &ALL Previously
dated Vor unrevised drawings
Junction Box 2
Top 32.80
32.68 Top I 132.68 Top
32.01 Inv Out 32.01 Inv Out
Lot 2 7
Top
Inv Out
Junction Box 1
Top 32.88
Inv 30.30
GRAPHIC SCALE
m o 10 20 40
1 inch = 20 tL
LEA
EIS ... Existing Iron Stake
ECM ... Existing Concrete Monument
SIS ... Set Iron Stake
CP ... Computed Point
DRAINAGE DATA &_PiPE SMW
USING RA77ONAL FORMULA W IER,
C-a 9
I10-8.96 IN/NR
i:�� 1
�i� I VELOCITY
A 0.16
6" 4;
00.015
B 1.28
12' 5(
0.004
C 0.15
6" 5
00.015
D 1.65
12" 3E
0.005
E 0.21
6' 1 c
00.015
F a 05
6' 5
•0.015
G a19
6' 3
*0.013
H 1.89
12' 3�
0.008
1 1.17
8' Ic
0.017
J a22
6' I!
•0.015
K 0.17
6' I'd
00.015
L 0.24
8' 2t
0.006
M 0.70
8" 4,
0.009
N 0.14
6` is
$0.015
0 a08
6' i€
*0.015
P 3.98
I5" 7,
0.008
00 6.80
2-15' 11 }
each 0.0024 2.8 fps
*Gutter and Trench drain tonne, t,bna
Capacities >> 0 roq. Erodes
Indicated are minimum&
INLET SCHEDULE
Min_ Drag InietC ,
i Grate** Min Net Opening (of)
DROP INLET 1
1606
0.52
DROP INLET 2
1202
0.04
DROP INLET 3
12x12
0.11
Tzench Drain L rgth__(ft)**-
All 6" Wide
Trench Drain 1
10
Trench Drain 2
15
Trench Drain 3
20
Trench Drain 4
5
See Spreadsheet Calculations f -r
details. **Coordinate / confirm pipe do Inlet
loadings and grate net openinc
requirements with selected product
(manufacturer(s)) specification!
(equivalent or better substitutions acceptable).
SIS
�
1
1
;
t
;
.`
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01
Inl
•
rop , .
32.36 Top
---
30.5 Inv Out'
Al
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46
Seeding SMIfications
Install necessary mechanical erosion and sedimentation control practices
before seeding. and complete grading according to the approved plan.
Lime and fertilizer needs should be determined by soil test. Contact
NCDA for additional Information regarding testing. When soil test are
available. follow rates suggested on Individual specification sheet for
seeding mix chosen. Apply Ilene and fertilizer and work Into 4-5 Inches of
soil by disking or other suitable means. Operate machinery on the contour.
When using hydrosssder, apply Ilene and fertilizer to a rough, loose surface.
Complete seedbed preparation by breaking up large clods and raking Into
a smooth uniform surfam Broadcast seed Into freshly loosened seedbed
that has not been soaled by rainfall. Seed mixture shall be distributed
uniformly and covered with a dean straw mulch. All mulch shall be crimped
or asphalt tacked to help hold In place. Material and application rates
are ce follows:
TEMPORARY SEEDING
Seeding Mixture: Wlnter/Early spring Summer Fall
jd, Rata(Ib/ac) Rat /ac) Rate(Ib/ac)
Rye (grain) 120 -0- 120
Annual L�p edezo (Kobe) 50 -0- -0-
German mAlet -0- 40 -0-
PERMANENT SEEDING
Seeding Mixture:
Ratef l� /ac)/ac)
Pensacola Bahlogross 50
Common 9ermudogross 10
Garman millet 10
Seeding Notes:
1. Where neot appearance Is desired, omit seriosa.
2. Use a common Bermudogross only on iodated sites
where It cannot become a pest. Bermudogrows may
be replaced with 5 lb/oc re centlpedegrase.
Seeding Dates:
April 1 - July 15
Sop Amendments:
Apply lime and fertilizer according to a sails test, or apply
3,000 Ib/ocre 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, raving, netting,
or by crhnping with a mulch anchoring tool.
Maintenance:
Refertilize the fallowing April with 50 lb/acre nitrogen. Repeat
as growth requires. Mow as often as needed.
Lot 29
Grade to provide MINIMUM 0.5% fall -
all impervious areas to Inlets; match
existing constructed grades when
possible to minimize demolition. Grade
pervious areas to drain away from
collection (impervious) where
practicable.
site
Vicinity Ma,
C�QMi��OO �l
UNDERGROUND UTILITIES MAY EXIST IN THE VICINITY OF THIS
PROJECT. ANY LOCATIONS SHOWN FOR EXISTING UTILITIES ARE
APPROXIMATE AND OTHER UTILITIES MAY ALSO EXIST IN THE
VICINITY OF THIS PROJECT WHICH ARE NOT SHOWN ON THESE
PLANS.
PRIOR TO EXCAVATION, THE CONTRACTOR SHALL PROVIDE PROPER
NOTICE TO ALL UTILITY COMPANIES.
THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION
AND DEPTH OF ALL UTILITIES PRIOR TO CONSTRUCTION.
THE CONTRACTOR SHALL BE LIABLE FOR ALL UTILITY AND ANY
OTHER DAMAGE AND ALL LEGAL ACTIONS RESULTING FROM
CONSTRUCTION OF AND RELATED TO THIS PROJECT. BY ACCEPTING
THESE PLANS, CONTRACTOR AGREES TO HOLD HARMLESS THE
ENGINEER AND OWNER FROM CLAIMS OR DAMAGES RESULTING FROM
THIS WORK.
C�ALt oEF0HE VOU 0dC�
N.C. ONE CALL CLIENT `� R 1 -o Do 0-6 32 4g49
!� Contractor & Owner Responsible for
SIS - _ _ appropriatess, including but not limited to,
structural properties, of final pipe and
V.-A other material (all system elements)
01
selections. Care and special attention
1, a �� shall be given to compliance with all
manufacturers instructions and
O1 recommendations. (Alternates, such as
�. 1 '� - - - -- -- - - - -- - - reinforced concrete "bridging" over pipes
1�-- N 6 9 ° 3 3' 14 N E 5 0. 0 0' to be per structural designer.)
SIS ' 11 Unless otherwise specified. oil2e shall be
1 Qorruaated Polvethvlene Pipe (HDPE)
1 CID PIGEON LANE
I - - - - - - " �` Contractor sholl use NCDOT approved dual
I 501 R/W (Public) wall HDPE (n=0.010--0.012) for all pipes
beneath areas subject to vehicular
loadings & where otherwise indicated.
1 �
1 Gj� Note the importance of watertight
connections as pipes and drainage
�\ - - - - - -'" - - - - - - structures will periodically retain water.
Provide as appropriate for specific load
i bearing conditions in final locations.
` ` � �" -- - •- � � ' / P 'd Dr 'n Struct res to
TRACT DA T/
TOTAL ARE< � 1.02 AC
PARCEL NUS 13ER: 1319C-39
DEED Bk: 2E :'4 Pg: 144--145
ZONE:
OWNER/OPERATOR'S RESPONSIBILITY
TO MAINTAIN, SECURE & ENCLOSE ALL
POTENTIALLY HAZARDOUS
STORM WA TER SYSTEM ELEMENTS WITH
FENCING, COVERING, ETC, FOR THE
SAFETY OF ALL WHO MAY ENCOUNTER
SYSTEM.
rOVI a al age u
DP ,-jCcommodate pipes in accordance with
DOT standards & accepted practices.
� IOP C4"C'LINA ENVIRONMENTAL
``�� I ii 1�'i '. E 'iF�ry�L,•ief QU LIT
CIwg �aba� allt�lla
NO WETLANDS ON SITE
(Per Soil Scientist)
FEB 0 8 2012
e4
REVISIONS
1 /31 /2012 Per Owner
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C&I
DATE: 5/5/2011
PROJECT: 10-047
DRAWN BY: JF
SHEET: 1 Of 2
�s �'.'IG __ - : ., • i si : • :��. '?:i.�R..l.L 1-..`.. �.--� �.".. ...�.. .. ... .. '.. .. .. :. ... .%:Si�7T.l-��i).TfiT �'R:f-:�Y{�T"Fi T"�`:R!ri :ice'.?.-F!, _TTS

otet
All Wood shall be Pressure
Treated In accordance with
Location / exposure
Provide Riser, Steps &
Secure Manhole Access
or Lockable Hatch per
Owner, Manufacturer &
Structure Designer (Typ)
REVISIONS
1/31/2012 Per Owner
Waterproof
Junc. Box
Condult
To Elec.
Service
4/10 HP Myers ME 40 EffI.
Pump or Equiv. with
Integral Float Control
Disconnect In
Weather R- '-'
Enclosure
1,5' Gate
1,5' Check Valve
Valve
15' Forcemail
To Sedimentation Chamber
Install Pump In minimum 24
diameter x 6.5' deep Sum
to provide for full tank
drainage
Pump Station Detail
No Scale
Note:
Operating condition maintains 2ft
of head in sand filter during
operation and is —12 GPM.
Adjust throttling valve accordingly
A ♦ -,
i
1
LS/VFS 1
MASONRY
- WEIR WAL
2
1
A�
2ft 0 TO
SYSTEM
Plan View
No Scale
Pump Station Detail
No Scale
1) STRUCTURE SHALL BE 5'X5'
PRECAST AS MANUFACTURED BY
CAROLINA PRECAST CONCRETE, INC.
OR EQUAL.
2) WEIR WALL SHALT. BE FIELD
CONSTRUCTED FROM 4" MASONRY
UNITS MINIMUM.
TO SYSTEM
15" 0
IN
Electrical Rack
No Scale
All Electrical Components
shall be Installed above
100 year flood elevatlon
& as required by NC & NEC.
Provide Secure I
Manhole Access
or Lockable Hatch
WEIR
.•
;� �.. 'r,'' ..
ELEV.
31.20
+:
'
MASONRY
To LS/VFS
WEIR
WALL
.rrRRrrrr
•.ELE7
30.20
■ R R R R R .. R R
�
Rrr.♦.rr,r
CONC. GROW
2"
TITORAGE
SED.
: r :::::::
FILL
.+
r r Y r r .. r r R r
• f
Section A -A
No Scale
By -Pass Structure Detail
No Scale
larine
Plywood (min)
Meter
(or alternate
:e / Supply)
6' Brace (min>
of 2)
4' min Post
of 2)
2 Offske. Bypass
Pipes - QQ
Extend Thru Junction
Box Partition to
Plan View Treatment System
East Side
2 Existing 12"0 CPPs
Inverts in = 30.85
2 -15" 0 Dual Wall (smooth
interior) Offalte Flow
Invert out 31.2 QQ
P Invert out = 29.80 0 1
Partition Between
Junction & Bypass
Box Sections
H
I 8" 0 Offsite Flow
Extend Thru Junction
Box Partition to
,Treatment System
(East) Side
%
2 Existing 12"0 CPPs
Provide Secure
Manhole Access
or Lockable Hatch
Finished Grade per Owner
I
Section
1) STRUCTURE SHALL BE 6'X6'
PRECAST AS MANUFACTURED BY
CAROLINA PRECAST CONCRETE, INC.
OR EQUAL.
,Junction / Conflict Box Schematic 2) PARTITION WALL SHALL BE FIELD
No Scale CONSTRUCTED FROM 4" MASONRY
UNITS MINIMUM.
19,5f t
C+/-)
1 EG ELE V
EG ELEV
-32 --32
Begin Swale Elev 30.94(+/-)
Bottcr 2ft Wide (Min)
5:1 Bypass Swale SOD OR LINE CENTER (BOTTOM +
NO SCALE 2f t MIN EACH SIDE -SLOPE) OF
SWALE W/ EROSI❑N CONTROL
BLANKET (CURLEX 1 BY
AMERICAN EXCELSI❑R OR EQUAL),
Rlprap
♦ ♦ r ♦ ♦ r + ♦ • ♦ • - r r r ♦ r
At
La
♦ . .
. .
M
(axe
♦ . ♦ 1'EdEfAfEd F'ILTEA �Ti�IP
a ♦ . ♦ . r . r r . r r
" . ♦
.+.`-
--CdNgTi(UCT 'LfP'r 0t♦ Pf�EADI:R a
- AT CONSTANT ELEVATION
r ♦ ♦ •
♦ ♦ ♦ ♦ ♦ •
♦ r
r •
i
YY7
3'
1
50 * FILTER STRIP WIDTH
PLAN
VEGETATIVE FILTER STRIP
CONSTRUCT 'LIP' OF SPREADER DIMENSIONS)
�--�—� AT CONSTANT ELEVATION SEED, MULCH, AMEND PER
(PARALLEL TO CONTOUR) AND TESTS VOR SEEDING
BLIND 3' ABOVE GRADE DOWNSLOPE. SCHEDULE 16 NCSU
SWALE - COOPERATIVE EXTENSION
IEV30.75 SLOPE � ELEV.30.50
#57 STONE
V� LION GEOTEXTILE FABRIC. 6' "OPSOIL
Rlprap-Min Class A CONCRETE LEVEL SPREADER
Eros. Control Stone r AND FOOTER.
Over Geotextlle. Underdraln rr SECTION A- A
(Optlonau r
I
Level Spreader &
04 CGNT•
I L
18' r�..c. Vegetated Filter Detail
NO SCALE
18' 04t12'
D.0 E-W NnM
�v� Sr,nco AT A MINIMUM, THE VEGETATED FILTER
STRIP AND ANY SIDE SLOIPES (31­14V MAX)
SHALL BE COVERED WITH SIX INCHES OF
TOPSAIL. THE SOIL MAY BE TESTED AND
AMENDED ACCORDINGLY OR GENERAL
AMENDMENT RECOMMENDATIONS MAY BE
FOLLOWED.
Install Pump In
minimum 24'
diameter x 6.5'
deep Sump.
(Confirm with manufacturer
\
If alternate pump
selected.)
Ensure PumpIs
accessible
via manhole or
hatch
Opening without
entering
tank.
SUMP
1\
WATERTIGHT CONCRETE STRUCTURE
FINAL DESIGN PER MFR. (OTHERS)
6" CAP (TYP)
r
Finished Grade Per Owner
W.L
EIEV-31
Temp
Storage
515.25sf
2,834cf
Section A-2
No Scale
6 �F 4"0 PERFORATED UNDERDRAIN PVC PIPE
I PERFORATED UNDERDRAIN PVC CONCRETE WEIR
I INSTALL 3-4" (PARTITION)
' PIPES (SCHEDULE 48 OR SDR 35) MAX 10'
j O.C. W/ WO PERFORATIONS O 6" O.C. (TYP)
Sed Basin
a.
Min, Surface
V CROSS �'° 6%4" REDUCER Area=248sf
I I I
p� I 4"0 PERFORATED UNDERDRAIN PVC PIPE
BLIND Y' - t-,- -a i 4 r F -i" T s 'i i "`i -i-s-'.-.-a - {- i- i- i" " r 1
SWALE L - i L i•S _ _ — — — — ._ _ — — _ — — — — —
i �-
' ' Sand Filter
I I
' Sur -Face Area
Min Regd IO' D.C. Max.
277sf
I la
i I
4"/ PERFORATED UNDERDRAIN PVC PIPE
i- r r -i- Y - W 'I
L: -- -------------
6. Min 4" CAP (TYP)
Plan View
No Scale
PROPOSED FOR FLOATATION
AS REQUIRED PER TANK
DESIGNER/MANUFACTURER
24.8'
All( L
now
PIPE
FROM
STORAGE
CHAMBER
O
UATERIA RFO lkREM NTC
*SAND FILTER MEDIA MATERIAL SHALL BE
CLEAN WASHED COARSE MASONRY SAND
(ASTM C33) WITH AVG. DIAMETER Qmm.
**UNDERDRAIN STONE SHALL BE CLEAN
WASHED #57 STONE.
***FILTER FABRIC SHALL BE MIRAFI
N-SERIES (16ON) (equal or better)
11 5'
1 '
Sand Filter
-
3' Surface Area
Required,
277sf
Sed Basin
2'x8"x16" 2
Surface
OF WASHED #57 STONE
BLOCK
CONC.6'
(SPLASH)
(SPLASH)
Area,
248 s f
✓ FILLS*
FILTER
GRADE _33.00 ELEV-33.5
CONCRETE WEIR
,,.+ .•::•, :: ,•,,; :.I: ` . ; f :T ' ,'.'.
I M AX
' :'' ' :'��. " ' �, TER ,1FABRIC* •,,, �; , D�.. ,
1� ;:
(PARTITION)\/\
��
BLIND r
SWALE �- �'Ilk
-
w/Rlprap SCH. 40 PVC MI . 0. 2 IP ELEV-31.33
ELEV-31.33 INSTALL 3-4" PERFORATED UNDERDRAIN PVC WASHED �►57 STONE \ \\\�\\ \\ \\ \\ \�. \\\ \\
PIPES (SCHEDULE 40 OR SDR 35) MAX 10' O.C. MIN. 3" ABOVE UNDERDRAINj�/��/j.�/,��
17- ELEV-30.20 LEVEL SPREADER W/ 4 ROWS WO PERFORATIONS O 6' Q.C.
(SEE DETAIL)
Section A-1
No Scale
Sand Filter Detail
No Scale
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EXIST GRADE-33.00th
I'13(iPOSED FOR FLOAT
AS REQUIRED PER TANK
DESIGNER/MANUFACTURER
DATF.: 5/5/2011
PROJECT: 10-047
DRAWN BY: JF
SHEET: 2 of 2