SW8060742_APPROVED PLANS_20061024

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW eo('o()-l%�aj
DOC TYPE
❑ CURRENT PERMIT
C� APPROVED PLANS
c
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
-aJr�'nT
YYYYMMDD

a.!_ _L_. . _ 11k' _--._.;iI i_ -"-I "-le,.,_ 11 Al i _.I _.1 1" �'u_ - -__ L-L.
I. AREA 24000 SQFT = .55 ACRES
2. TOTAL IMPERVIOUS AREA 14051 SQFT, THEREFORE
56.97. IMPERVIOUS
SYSTEM DES€GN PARAMETERS:
GONI'"AIN FIRST I" OF RAINFALL (STATE REQUIREMENT)
CONTAIN FIRST 15' OF RAINFALL (LOCAL ORDINANCE)
CONTAIN FIRST 3" OF RAINFALL (MAINTAIN NO OVERFLOW)
VOLUME
FOR I" _
(1/12)(14051) =
1,170 CU FT
VOLUME
FOR 1.5'
_ (1.5/12X14051)
= 1,756 GU FT
VOLUME
FOR 3" _
(3/12)(14051) =
3,512 CU FT
3. FLOW RATES:
LINAGE AREA 19Z
PRE -DEVELOPMENT
CN = 35
T c = .293
5 = .176
qI = 5ZI GFS
ql0 = .957 (AS
POST DEVELOPMENT (NO CONTROLS)
GN = 73
Tc = .219
5 = .131
ql = .945 6F5
q10 = 1.79 GFs
POST DEVELOPMENT (WITH CONTROLS)
CN = 73
T c = .219
S = .131
ql = O CFS
qI0=0CFS
4. THE STORMWATER SYSTEM WILL COMPRISE OF 44 STORMTEGEI
56-740 CHAMMRS. (SEE ATTACHED DETAILS)
5. TRENCH I IN DRAINAGE AREA OZ, STORMTECH 66 -740 SYSTEM
SPECIFICATIONS:
OVERALL TRENCH DIMEN510N5: 156" q' X 11'
45.9 CU f=T OF STORMWATER STORAGE PER 56,- 740
GHAMMR WITHOUT STONE
WITH THE ADDITION OF I2" OF STONE f ELOW CHAMMR ROVVS
AND CHAMBERS INSTALLED TO MR4YACTURER6 SPECIFICATIONS
516 64J FT OF STORAGE IS OTAINE P
TOTAL STORAGE VOLUME 51-6(44) = 3590 CU FT
6. WATER TABLE WAS DETERMINED TO M APROX. 14.5" MSL SEE
DRAWING 040 FOR TEST SITE
7. INFILTRATION RATES WERE DETERMINED TO PE APROX. 14.5"/HR
5. SUMMARY
WITH THIS SYSTEM, THE FIRST 1" ,15' AND 3" OF EACH EVENT
15 CONTAINED AND INFILTRATED, THERE IS NO OTHER DISCHARGE.
THE I YEAR AND 10 YEAR EVENTS ARE CONTAINED AND INFILTRATED
WITH NO OTHER DISCHARGE.
IN THE EVENT THAT THE EVENT EXCEEDS THE DESIGN EVENT,
INDIVIDUAL i5YPASSES ARE GONSTREX,FD ON EACH GUTTER
60LWTION POINT (SEE ATTACHED DETAILS)
THEREFORE, FOR THE! I YEAR AND 10 YEAR 24 HOUR 66511
EVENTS, RAINFALL FROM THE PERVIOUS AREAS WILL M CONTAINED
AND INFILTRATED 15Y THE INFILTRATION TRENOIE5.
THERE WILL W- NO INCREASE IN VOLUMES OR FLOWRATE5 OF
THIS DRAINAGE AREA.
_T
FA I NACRE
SEE
)e
vj IN(/ IF-,. (1-ump (l-U I I C/ V1'Gf111N r /-\mr\IIN4u
LOT INTO PROF INLETS
K;_il .i...i_ ►�
JWH ENGINEERING DOES NOT ASSUME ANY LIARILTTY
FOR THE CONSTRUCTION METHODS, OR ANY
DEVIATION FROM THESE PLANS. ALL INFORMATION
ON THESE PLANS IS TO BE VERIFIED PRIOR TO START
OF CONSTRUCTION. SHOULD ANY DISCREPANCIES
OCCUR, CONTACT JWH CUSTOM DESIGN INC. PRIOR
TO ANY DEVIATION FROM THIS PLAN. FOR
CONSTRUCTION PURPOSES, DO NOT SCALE THESE
PLANS. REFER TO DIMENSIONS INDICATED ON THESE
PLANS. CODES GOVERN OVER THESE DRAWINGS.
PROJECT INFO:
OWNER:
r l
V
DRAINAGE AREA 01: z
1. AREA 7(000 SQFT = 1.74 ACRES Q Q^
2. TOTAL IMPERVIOUS AREA 76000 SOFT, THEREFORE^j
1007 IMPERVIOUS M H
3. SYSTEM DE51GN PARAMETERS: ~�
CONTAIN FIRST I" OF RAINFALL (STATE REQ)IREMENT) r �
CONTAIN FIRST 15 OF RAINFALL. (LOCAL ORDINANCE) m Z
CONTAIN FIRST 3" OF RAINFALL (MAINTAIN NO OVERFLOW) ^ }�
VOLUME FOR I" = (1 /12)(76000) = 6,333 0 FT h�
VOLUME FOR 1.5" _ (1.5/12)(76000) = 9,500 GU FT
VOLUME FOR V' _ (3/I2)(76000) = 19,000 CU Fr O
4. FLOW RATES:
DRAINAGE ffiLA Q1
PRE -DEVELOPMENT T n
CN= 35 V 1
T c= 509
5= .3 6 l J
qj
q10= 3.12 GFS
POST DEVELOPMENT (NO CONTROLS)
TcCN 9 0
T c = .352
ql = 3.73 CFS
q10=7.07CF5
P05T DEVELOPMENT (WITH CONTROLS)
CN=95 r�
T
q10=OOPS
5. THE STORMWATER SYSTEM WILL COMPRISE OF 235 SC-740 [�
STORMTFGH CHAMBERS (SEE ATTACHED DETAILS) � r
6. TRENCH I IN DRAINAGE AREA 01, STORMTEGH 96-740 SYSTEM
SPECIFICATIONS: uj
OVERALL TRENCH DIMENSIONS: 334'-6" X 25-3"
45.9 CU FT OF STORMWATER STORAGE PER S6 -740
GHAMMR WITHOUT STONE � z
WITH THE ADDITION OF 12" OF STONE I5ELOW CHAMBER ROWS .�
rr..�
AND GHAMMRS INSTALLED TO MANIJFAGTURERS SPECIFICATIONS � V
51.6 CU FT OF 5TORAGE IS OBTAINED
TOTAL STORAGE VOLUME 51.6(235) = 19176 CU FT %Lu
STORAGE VOLUME OF 51.6 CU FT PER CHAMBER FOR A TOTAL OF
SI.6(233)= Roll CU FT
5. WATER TAi31-E WAS DETERMINED TO 13E APROX. 14.5' MSL SEE goof O'QUINN BLVD.
DRAWING 04V FOR TEST 51TE UNIT IF
6. INFILTRATION RATES WERE DETERMINED TO M APROX. 148"/HR SOICI'7[ HP'OR'T, NC 28461
7. SUMMARYPHONE: [phone]
WITH THIS SYSTEM, THE FIRST 1" ,15' AND 3" OF EACH EVENT 15 ]FAX: [phone]o
CONTAINED AND INfILTRATED, THERE 16 NO OTHER DISCHARGE. THE I
``,1y111111f11f!!!I
YEAR AND 10 YEAR EVENTS ARE CONTAINED AND INFILTRATED WITH NO ��``��H CARQ� �''1i,
OTHER DISCHARGE. SS �'y-:-
FE IO'.
THEREFORE, FOR THE I YEAR AND IO YEAR 24 HOUR SOS€ I � p ;p
EVENTS, RAINFALL FROM THE PERVIOUS AREAS WILL M CONTAINEDAL
AND INFILTRATED 15Y THE INFILTRATION TRENCHES. _ _4 025E573 �=
THERE WILL M NO IN6REA5E IN VOLUMES OR FLOWRATES OF
THIS DRAINAGE AREA. %�9'-FN
•�'�.'�'F'
W. 0 !
!'!llrrnnl �
L
Tn �i
31wf `TC m$�
` r -9 t.g1 ; m
I. GdMpINES LOT SIZE I5 IOO UO SF/ 2.3 ACRES
2. ALL STORMWATER IS TO M CONTAINED ON SITE.
3, THERE ARE NO WETL}ND5 ON THIS SITE.
4. THE 51.6 M516 FT OT STORAGE PER SG-740 GHAMMR VALUE IS
015TAINEP WITH THE �TL 12" OF STONE BELOW AND 6" OF STONE APOVE
IN ADDITION TO THE /.HAMI3ER5 STORAGE.
5, ALL ROOF GUTTERS TO HAVE DOWNSPOUTS AND ROCK
BOXES TIED TO SW 5Y51i'M.
6. SYSTEM DESIGN PARAMETERS:
CONTAIN FIRST I" OF RAINFALL (STATE REQUIREMENT)
CONTAIN FIRST 15" OF RAINFALL (LOCAL ORDINANCE)
CONTAIN FIRST 3" OF RAINFALL. (NO OVERFLOW REOLFZI=JMENT5)
7. THE SYSTEM CONTAIi15 AND CONTROLS THE FIRST 3" OF RAINFALL. ALL
STORMWATER IS RETedNED ON SITE, RECEIVED
SEP 2 0 2006
DWQ
OROJ # 5W 9' 0Coo-742
02 09.19.06 RE.gWSTED PEW GHANGE5
NO, DATE DESCRIIPTION
REVISIONS
DRAWN: CIHIECKED:
AA JWH
SCALE: SHEET
SIZE:
1" = 30' 1 D
Ii3�1
08.07.06
DRAWING TITLE.
STORM
WATER
PROJECT NO.
01-06-0180
DRAWING NO.:
01,00
r? r 71
1 T� t
I 'tlili. � ,•'i `1'. =+i �. r. r �„ t�.. .. . -F' f__i�e. �._ If �! S'� � .. - � 1 ��' y!.�.p, '+�1� �j 1!

--,-w-UT -07
FT

JWH ENGINEERING DOES NOT ASSUME ANY LIABILITY
FOR THE CONSTRUCTION METHODS, OR ANY
DEVIATION FROM THESE PLANS, ALL INFORMATION
ON THESE PLANS IS TO BE VERIFIED PRIOR TO START
OF CONSTRUCTION. SHOULD ANY DISCREPANCIES
OCCUR, CONTACT JWH CUSTOM DESIGN INC PRIOR
TO ANY DEVIATION FROM THIS PLAN. FOR
CONSTRUCTION PURPOSES, DO NOT SCALE THESE
PLANS. REFER TO DIMENSIONS INDICATED ON THESE
PLANS. CODES GOVERN OVER THESE DRAWINGS.
MATERIAL LOCATION
DESCRIPTION
AASHTO M43
AASHTO MI45
COMPA6,TION/PENSITY
PE5IGNATION
DESIGNATION
REQUIREMENT
FILL MATERIAL FROM IS"
ANY SOIL/ROCK MATERIALS, NATIVE SOIL5 OR
N/A
N/A
PREPARE PER ENGINEER'S PLANS. PAVED INSTALLATIONS MAY
TO GRADE ABOVE CHAMBERS
PER ENGINEER'S PLANS. CHECK PLANS FOR
HAVE STRINGENT MATERIAL AND PREPARATION REQUIREMENTS.
PAVEMENT SUBGRAPE REQUIREMENTS.
Ga FILL MATERIAL FOR 6" TO 18"
GRANLL.AR WELL-L--C�RAaEP
3, 357, 4, 4(0,
A 1
COMPACT IN 6" LIFTS TO A MINIMUM 957. STANPARD
ELEVATION ABOVE UTAMBERS
SOIL/A[�GREeATE MIXTURES, <557-
5, 56, 57, 6, 67,
68, 7, 75, S,
A_2
PROCTOR DENSITY. ROLLER eRO56 VEHICLE WEIC�I-ICNOT TO
{24" FOR UNPAVI*D INSTALLATIONS}
FINES.
M, 9, 10
q-3
EXCEED 11,000 L.BS. DYNAMIC FORCE NOT TO EXCEED
20 00 LVS.
© EMBEDMENT STONE SURROUNDING AND TO A
WASHED ANW-AR STONE WITH THE MAJORITY
3, 357, 4, 467, 5,
N/A
NO COMPACTION REQUIREb
6" ELEVATION ABOVE CHAMBERS
OF PARTICLES BETWEEN 3/4 -- 2 INCH
56, 57
AO FOUNDATION STONE BELOW CHAMBERS
WASHED ANGULAR STONE WITH THE
3, 357, 4, 467,
N/A
PLATE COMPACT OR ROLL TO ACHIEVE A 95%
MAJORITY OF PARTICLES BETWEEN 3/4 - 'Z
5, 56, 57
STANDARD PROCTOR DENSITY
INCH
PLEASE NOTE: THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE WASHED CRUS-EP ANGUAR. FOR EXAMPLE, THE STONE MUST BE SPECIFIED AS WASHED,
CRUSHED, ANC I, NO. 4 STONE.
SCALE. J/Vy = 1—O
go l6w OEM
ApS 41 PIPE IS SMOOTH 1145VE AND AVAILABLE IN 4"-iW' DIAMETERS IN NOMINAL
2d LPNOTH5. PIPE CAN M 66LIP OR PERFORATED/sLonw. 66111716URATION IS N-12
(6ORRE6ATED OUTSIDE AND SMOOT-H IN51DE).
�IGAYION
6tNIERAL GRAVITY DRAINAGE. STORM WATER CONTROL, 515-'17RAINAC;E, A;.P/OR SEWER.
qm(.IFLGATLONS
PIPE AND FITTINGS MEET THE REQUIREMENTS OF AASHTO M 252 (3"-Ids. M-294 (12" AND LARGER)
TYPE S (6VRRL0ATFJ7 OUTSIPlff- IvI00iH IN151DE, 4"- 'a), AND MP7 (6d'
JOINT OPTIONS AND PFRFORMANCE:
I. NON-0A5KETED JOINTS ARE INTERNAL OR EXTERNAL COIFLERS COVERING A MINIMLM OF TWO CORRLrvATIONS AT EACH END.
2, 6ASKETED NON -WATER T16HT JOINTS (SOIL TIGHT PER AASHTO SECTION U)} 6A5KET5 MAY BE ARG111TECURAL.
WEATHER-STRIPPING MATERIAL PER ASTM D-1056, OR RLWR PER ASTM F-4T.
--5 INTEGRAL pmL/S'IeOr WITH A RU6bER BASKET MEETING A5r`M r-AFT! INSTALLED ON THE LW,
4. 6A5KETFD, LAB TEST CERTimp IO.S PSI JOINT: NDL/SPI60T WITH A RUBBER 6A5KET MEETINI6 ASTM F-477 INSTAL I EP ON THE 5PI60T END.
5. REPAIR OR ADAPTER COIlLER, 5.0 PSI TESTED HDPE WRAP-ARaW SLEEVE WITH SELF --CONTAINED
T160TENIN6 STRAPS, FURNISHED PY THE PIPE MANLFACTIFER.
INSTALLATION:
INSTALLATION SHALL DE PER FOCAL A6ENCY REQUIREMENTS OR MAIFA(,TL)RER'S RV-151-1E1? REGLOMEWATIONS WITH
A MINIMLM COVER FOR 11-25 LOAPIN6 SHALL BE ONE FOOT THRaK-)h 40, AND TWO FEET FOR DIAMETERS 6RL=ATR THAN 60'.
1+VI ATHpE 5� N spEGHIcATI N MANUAL. ��H CHAM13ERs SHALL M IN ACCORDANCE
7. THE INSTALLATION OF STORMTECH CHAMMRS SHALL BE IN ACCORDANCE WITH THE
LATEsT sTORMTFCH INSTALLATION IN5TRWTIONs.
3, THE CONTRACTOR IS ADIVISEP TO REVIEW AND UWERSTANP THE INSTALLATION
INSTRUCTIONS PRIOR TO BEGINNING SYSTEM INSTALLATION. GALL I-SSS-592-U94 OR
VISIT WWW.STORMTECH.C.GM TO RECEIVE A COPY OF THE LATEST STORMTECII
INSTALLATION INSTRUCTIONS.
4. CHAMBERs SHALL MEET THE DESIGN REQUIREMENTS ANP SAFETY FACTORS
SPECIFIED IN SECTION 12.12 OF THE LATEST EDITION OF THE AASHTO LRM 15RIPC-E
DE510N SPE(IFICATIONS.
THE INSTALLED 641AMf5ER SYSTEM SHALL PROVIDE
THE SAFETY FACTORS SPECIFIED IN THE AASIITO LRFD
15RIPOE DESIGN SPECIFICATIONS SECTION 12.12 FOR
EARTH AND LIVE LOADS, WITH CONSIDERATION FOR
IMPACT AND MULTIPLE VEHICLE PRESENCES.
S6-740 6HAMf5ER
3/4 - 2 INCH WASHED,
CRUSHED, ANGULAR STONE
ADS 601 GEOTEXTILE OR EgUAL
DE51GN ENGINEER IS RE51`01\161ft-E FOR
ENSURING SUITABILITY OF SU15GRADE SOILS
AA
ii
GHAMERS SHALL MEET ASTM F 2� 18-05 "STANDARD
SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED
WALL STORMWATER COLLECTION CHAMBERS"_
GRANULAR WELL GRADED 501L/A0GREATE MIXTURES,
<35% FINES. COMPACT IN ( IN LIFTS TO 95% PROCTOR DENSITY.
SEE THE TAf5LE OF A6CEPTAf5LE FILL MATERIALS .
56-740 END GAP
PAVEMENT
TH15 6R055 SECTION DETAILS THE REgUIREMENT5
NECESSARY TO SATISFY THE SAFETY FACTORS
SPECIFIED IN THE AA5HTO LRFD BRIDGE DESIGN
SPECIFICATIONS SECTION 12.j2 FOR EARTH AND LIVE
LOADS USING STORMTECH CHAMBERS
STEM TTYP I OL_ 6R05�SEOT I ON
SCALE: 1/21
/ = I1-0„
ACCEPTS 4" SCH 40 PIPE FOR
OR INGPFCTION PORT
-- 90.7" ACTUAL LENGTH
85.4" INSTALLED
STORMTEUI 56-740 OHAM
NOMINAL. CHAMBER SPECIFICATIONS
51ZE (W x H x INSTALLED LENOT H) 51 j;P" x 30.d' x P,5.A}'
CHAMBER STORK-E 45.9 CUBIC FAT
MININW INSTALLED STORAGE 74.9 CUBIC FEET
WEIGHT 75 LBS.
FOR STORMTECH INFORMATION
GALL 1-550--"—U94
5
►:11M
0
I2"o ADS PIPE
FOR STORMTECH
IWORMATICN CALL I-e09-9192-2694
SCALE: 1/2" = 1,-0
22.5••
t Is" A�pRpyc.
c <<rlrl
s
24" o ADS PIPE
NO, I DATE DESCRIPTION
REVISIONS
PROJECT INFO:
OWNER:
5oo1 O'QUINN BLVD.
UNIT 1F
SOU THPOR'T, NC 28461
PHONE: [phone]
FAX: [phone]
\gyp 1{ 14111,1I l Ip! l � J�'/
SSI�,9''%
Q� SF�L
- 025573 =
DRAWN:
CHECKED:
AA
JWH
SCALE:
SHEET
SIZE:
I
AS NOTED
D
DATE.
08.07.06
DRAWING TITLE:
DETAILS
PROJECT NO.
01-06-0180
DRAWING NO.:
02,00
A
+I !,i + i �' a I'litr � , I i � r r �, ,�,, , } , t �' r ° r •�� l �r , � � •S,r r'��'

Ids .S �.. 1; 1�._ . �F.. ;L'- _.l..±2. _....� •L' , — - -- .I ,. .. ,. , "
12" MIN STOM
AT END OF (HAMMR ROY
6" MIN STONE
BETWEEN GHAMMR ROWS
A-H' W f If L_
5TO EMT EG11 5Y5TEM W P OP INLET- Tofu VIEW
OZ SCALE: 1 /4„ == [,_d,
�� SroRMr
5Y5TEM
YX.
740 SYSTEM
I/ATION VIEW
STORMTEO"i 66-740 GHAMMR ROW (TYP)
STORMTEGH 56-740 GHAMMR ISOLATOR ROW
NOTE 6TORMTEG�f1 5Y5TEM
NOT TURNED FOR CLARITY
off-- sr
MT
3'X3' ID. PRECAST DRY' INLET
1 1 - - f- .7 I I IYI
IST .5 ET M
5 S 5 5
SHWT 6d' PELeN EXISTING GRADE 145 FT MSL
5Y5T
STORM
; I
WITECH 56-7,40 C HAMMR ROW (rYP)
6" MIN STONE
BETWEEN GHAMMR ROWS
12" MIN STONE
AT END OF GHAMMR ROWS
W PROP INLET To' VIEW
SCALE: 1/4,. _ 1,_6y„
5Y5TEM
lv' o PIPE (TYP)
PAVEMENT
i
APPFOX.
il
STORMTFLht 5G-740 5Y5TEM
E1/AT1
VIEW
SCALE: 1/4" = 11`o„
NO. I DATE DESCRIPTION
REVISIONS
JWH ENGINEERING DOES NOT ASSUME ANY LIABILITY
FOR THE CONSTRUCTION METHODS, OR ANY
DEVIATION FROM THESE PLANS. ALL INFORMATION
ON THESE PLANS IS TO BE VERIFIED PRIOR TO START
OF CONSTRUCTION. SHOULD ANY DISCREPANCIES
OCCUR, CONTACT JWH CUSTOM DESIGN INC. PRIOR
TO ANY DEVIATION FROM THIS PLAN. FOR
CONSTRUCTION PURPOSES, DO NOT SCALE THESE
PLANS, REFER TO DIMENSIONS INDICATED ON THESE
PLANS. CODES GOVERN OVER THESE DRAWINGS.
PROJECT INFO:
OWNER:
gooi 010,UINN BLVD.
UNIT ]F
SOU` HPORT, NC 28461
PHONE: (qxo) 278-1226
FAX: [phone]o
N1111 ItuInlli'll
��� CARa(�'�i.,�.
SEAL
025573 = -
W.
DRAWN:
CHECKED:
AA
JWH
SCALE:
SHEET
SIZE:
AS NOTED
D
DATE
08.07.06
DRAWING TITLE:
DETAILS
PROJECT[' NO.
01-06-0180
DRAWING NO.:
0201
'! •t ,! j• 1 I r t s P I, 1

- - -,q -, - - 1.
7--
Alls Sys, A L A Win 0

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