SW7060624_APPROVED PLANS_20060928

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. I SW 7O�2d(pA 5�
DOC TYPE El CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE LYo e i AT
YYYYMMDD

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INLET 1-1 LAND OWNER: LIVERMAN'S METAL RECYCLING \ \ SR 1208
DRAINAGE AREA=0.69AC 125 W. MODLIN RD.
DISTURBED AREA=0.49AC AHOSKIE, N.C. 27910 \
IMPERVIOUS AREA=0.49AC
STORAGE REQUIRMENT=1780 C.F.WATER SURVEYOR: JIMMY E. LIVERMAN, JR. /� No z
WITH 42% VOID SPACE=4240 C.F.#5 STONE LAND SURVEYING `R,� / D� \ SITE �A`"` O
SHWT=63.9' P.O. BOX 896, 217 JACKSON ST. " 40 F � �
C/L DITCH 65.7' 4
RICH SQUARE, N.C. 27869
T.B. 66.83' �P INLET 2-1 e' �RILf \ \ ��} � Lp�p DRAINAGE AREA=1.09AC �(' FRS \ Ld
DISTURBED AREA=0.63AC LOT AREA: p
ERB ��.�ph� IMPERVIOUS AREA=0.39AC 1 ,032,863.72 SF G 3 �.Q� N
�` o
J STORAGE REQUIRMENT=1425 C.F.WATER 23.71 ACRES `36 �� \
IN PINE -� h
WITH 42% VOID SPACE=3400C.F.#5 STC'�NE N
DO NOT DISTURB AREA STUMP TOP BANK 66.90 ��O' SHWT=66.5'
EX. C/L DITCH 65.$'
NORTH OF DITCH. DO NOT DISTURB AREA Q INLET 3-1 \ P o
NORT-I OF DITCH. �� O DISTURBED EDAREA .549 C NOTE: N
g01'32 i TOTAL AREA OF TRACT = 23.71 AC p 6
STORAGE ARE MENT9 C C.F.WATER NO WETLANDS ON -SITE
\ A 50 GPM PUMP WILL MAINTAIN THE \ S
ERB i ! -� \ ` WITH 42% VOID SPACE=4260 C.F.#5 STONE FOREBAY WATER LEVEL ® 63.0'. y
IN PIN l / FOREBAY �� SHWT=65.5' PUMP WILL BE UTILIZED FOR EMERGENC
SURFACE AREA �3622 SF BLOCK EX. DITCH AND CONSTRUCT
- NEW DITCH. INITIAL HOLDING POND INLET 4-1 PUMP DOWN OF FOREBAY AND PP IF !
DEPTH = 3.0' / r-� DRAINAGE AREA=1.45AC NECESSARY.
VOLUME _ >2727 CF�/ \ ` \\ {FOREBAY} INV. IN 63.24 ®POND.
FOREBAY POOL ELEV. = 63.0' DISTURBED AREA=0.74AC
_ IMPERVIOUS AREA=0.68AC
! \ VICINITY MAP
6p•� STORAGE PEQUIRMENT=2475 C.F.WAIEe, \ NO SCALE
/ L TTO WITH 42% VOID SPACE=5890 C.F.#5 STONE 6' ` +
~\ / �B0M SHWT=66'
Y,Q, 0 � ti / �, 4 `� INLET 5-1 �i \
�Y 1� ti \ _ DRAINAGE AREA=0,66AC
� � 7 � ` 1 ` } •� >� ��` �kls DISTURBED AREA=0.66AC
ty 1 // �h IMPERVIOUS AREA=0.66AC
�+r `I � / 4 / � a.IrC, STORAGE REQUIRMENT-2400 C.F. WA TER: Q
O = / / ���� v _ 'y ®0 WITH 42% VOID SPACE=5717 C.F.#5 STONE
10 .�\5� / m , ; / FOREBAY 1 OVERFLOW 2 v
1 ---5 W = 34.w 69 SHWT=65.5' v
LO\��i / �:` p �a O,o= 66.<: CFS \40\ \
QS t \ �_ � ELEV. 65.0'
��� o �� m� Q'' ode �� '
\ 4
h T (v=
s�Q ' �:� /� // VEGETATIVE SH_LF DO NOT DISTURB AREA \ ,p
C� �\ \ / ��� `�. NORTH OF DITCH. /A
Q 6' PVC DRAWDOWN PIPE (WRAPPED? IN NWF)
� L DITCH atratwaart
/ USE 1 S 1.5"� HOLES C� 1'-D" / � 9te4 ti°pp:,
/ 7 64.6 SPACING, 3/ROW, 6 ROWS; SEE OUTLET DEVICE ° ��4f `s
TOE OF BERM l N >r. DETAIL ON SHEET 2 OF 2 L i J ��' C��•"`'aw��'0.�
EX. GROUND4• C/L DITCHC r
M� l• �' - 66.2 +/- (TYP) �\ ^ 6.7Q. E' 64.8' INLET 5-1 F . CC
� P4 6' �•
.:a
,r 1 y` GRASSED SCALE (2) YI 2'X3' TOP ELEV 69.17' �C yy�, 1'w' � � \ q < s � 'j li
TO DITCH SUMP BASIN WITH SCREENING 64.35' a 0� cn
• C�
1L �� TOP STONE ELEV=68.5' Aoq\ p�
1 BOTTOM STONE ELEV=67.5 a¢ p.'•.Q �c.,ira
WRAP IN NON -WOVEN FABRIC P A
/ J OVERFLOW FROM � � 1 A \, a
` DETEN110N POND 'ya as at
w 7 1 r ` SHWT=65.5' " 9
1 OVERFLOW DEVICE FOR 10YEAR
�- � RG ASSED ' W = 66.0' �°� %' l $• SSED H=0.3',W=9.75,USE 10' WIDELm
.�
Q,o= 66.3' \ 1 \ `� GRA 20' . ELEV. 68.95' .Q.►�
co
WATERWA,% ELEV_ 65.59' / LLJ` 1 ,g
41
r \
-� / \ r41 1, a�� I O�SR�LOw 6g = 6" PVC DRAWDOWN PIPE INLET 4-1 �, C l
f \ y 6 ? \ ,x / ` USE 1$-1.5"� HOLES ( 1'-0" SOD NFILTRATC: /STORAGE
co
4 /1•� SPACING 3 ROW 6 ROWS , _
/ / 1 5 / � 1 rD'X11O'X0 -6"; 21'X90' SOD 7
INLET AREA WIT,{ 3 12"PVC INLETS
35 t / �� TOP ELEV=68.8°,'00
00
O BOTTOM STONE ELEV=68'
f. SHWT=66 PROPOSED 8"CABC, I N
\ �� 2" I-2 ASPHALT f �'
rn I l , f�
O cv Q"�j �fl, ag }� DO NOT DISTURB AREA TYPICAL WILL BE CABA III Q i�
IN LOW TRAFFIC AREAS I I w z_
1 NORTH OF DITCH. w
OVERFLOW DEVICE FOR 10YEAR z 0
� R H=0.3',L='.33',USE 8' WIDE �
r 1 r �
ELEV. 69.45' Q
• 1 J \ r r 4" PVC DRAWDOWN INLET 2-1 I--- (J) U
cgs' Q 6g.35 Ekj�_ I USE 9-1.5"0 HOLES SOD INFILTRATOR/ STORAGE
z ! / `1� �• / n / }yI �SF'..4CING, "/RCW, 3 ROWST6fl'`C'7v'XOr-6" #5 `iTOM. I..IJ Z '¢
1 \6 O 12 _ PVC NETS
�FpQ' \ o+ 4 3 x1' S3o� pRp1N 1 ` BOTTOM STONE 568.50' r W C�3
10.6Q 0 NCH �OF? R SHWT=fifi.50' c l O
z jf 1 p� 1 7 0 0\0� _ A, , NO OFF -SITE WATER 7 Z CV
O JERFLL� 'WEIR L TO ZLn
I} / P� P�5 I �-� w fi 1 ASS�O GRASSED y'`J DITCHS OR TO I THE SITE (n (J7 O z Z N
ER P I Q�`' Q F �e I S `� I�S�� U L� x� O
ul
END OF EXISTING w O U N
DITCH w z CD
3 J L 5 5 GQpS A ® S �� A 5 a'� R ASS�D�-� cc S Z Z Ld z
! ' 6 NON Q
�n a� w / } �`� 6$•6 X 20a i. �� 6g,45 !-�0 ___ - - Z ---I C/)
LSo�° 60 boo, / _ �- w j
z j• \P' / 15, E,d7a.85 F`N�SNE�150, _ „ _5 ONPO�y� DO Naafi FREE 6 Np5 129.
�, p cn 6 E-- � � / / � � P N AG��O � 0 •a5 ��-E'V � SEO L � 0'R OO�N ROP OS�"� � __
�
c� �/ / 4 0 51' i7Yp / • '
15
1 \GQNpUE� � •SW pl-� 33'21 41 t �
o f ` 51, �1 / \ 9.35�✓ GRASSED S[Q SO r 51�roo
Ig •r
N U �• t � / '(� 1 ECG � -a• ,,. _ - -
1 6a 0 • ' �`
Z -
.� _ O
E R / I � /' 5 a0• LR4,NE �liq/v0- Q
� 1a• EN -
60' J = v
STORMWATER _
_ Opp - -• • -- N _ _ -� - of V APPROV �. Q U O O
. / _ „RCp N � �-I� NORTH CAROLINA EN1I MENTAIL w z
�' ✓ �/ _ - ► - J�� 1 jV. 64'S3 q O �1 V MANAGEMENT COMMISSION J
• / / / \ \ - - - - �� �� �� -� - _ - 1 VDD
DIVISION OF WATER QIJA#.ITY W - �P Date �G 27 20 4 ,�_�_
5� r NG 5 �,�4,59 _ 1 O Q
`f 1 [ ,N�' INLET 1-1?� Stormwa#er Permit No. 51'�i 7 �e�(e^� 0 Q
i,• I I `ice- • ' f_ SOD INFILTRATOR U
WITH 12"PVC INLET W
TOP ELEV. 68' �'�F� l � W_
Sr�p 4� 0' 7C25
er ` -� a PROPO `� SZj N _ EXISTING CONTOUR
W �cc
�t�yC��O PROPOSED CdNTOUR m.. � 141, pT NNCE
-`111 1�-X15�1NG EN INLET 3-1
- YI 2'X3' TOP ELEV 68.00' LEGEND
SUMP BASIN WITH SCREENING 64.5'
TOP STONE ELEV=67' O EIP EXISTING IRON PIPE
_ 06 0506
SHWBOTTOM STONE ELEV-66.5' OERB EXISTING REBAR ISSUE DATE: Pei
1
j • f f - - USE T50 X17O'XO'6" STONE •RBS REBAR SET DRAWN BY,
❑ CM CONC_ MONUMENT '
CHK D BY: RS,1
• J~' ��- �� _ O NPS NO POINT SET
o EPK EXISTING PK NAIL JOB NO. 05206
o ERRS EXISTING RAILROAD SPIKE DWG. NAME: FASTTRCK.
• RRSS RAILROAD SPIKE SET
4 r - a N&C EXISTING NAIL & CAP SCALE: 1 60'
®CC CONTROL CORNER
OPP J _ J
R POLE
�SMP METER POLE
° CM dLP LIGHT POLE HORIZ N/A
o ❑ TEL TELEPHONE PEDESTAL VERT: A
R/W RIGHT-OF-WAY
WAY DWG. N O
CENTERLINE
o
M r
j r -
N 60 0 60
o �
Lo
o
o -
N - Scale 1 60
�R/VI! SHEET 1 OF 2
i i.

Rpm
119:1�[y:Z�L•T��
##57 STONE CONSTRUCTION ENTRANCE
Nor TO SCALE
TYPICAL GRASSED WATERWAY
NOT TO SCALE
GENERAL NOTES:
THE ENGINEER MAY DIRECT THE OPTION OF
CLASS "A' STONE FOR SITES HAVING LESS THAN
ONE (1) ACRE DRAINAGE AREA AND A DITCH GRADE
LESS THAN 3`0.
SEDIMENT CONTROL STONE SHALL BE NO. 5 OR 57
STONE. FLOW DIRECTIONS
NATURAL TOP OF DITCH SLOPE BASE
n�n„n,n 1' MEN. OF DITCH
-
12" SEDIMENT
TRAP
FRONT ELEVATION 12" THI.I:K .SEDIMENT 4.5'
CONTROL STONE
TEMPORARY ROCK SILT
CHECKDAM TYPE B
NOT TO SCALE
POSTS
x
FABRIC
COMPACTEDC° o
EARTHFlLL :-
GROUND
GROUND
cc 0 cc
Ipl�
Ln 1
CD C7
ANCHOR FABRIC AS DIRECTED
BY THE ENGINEER WITH
COMPACTED EARTHFILL
SILT FENCE DETAIL
NOT TO SCALE
2' X 3' TOP
SEDIMENT CAGE
8" CONCRETE
4 a' Q a
a 4
a 4
� a
7 7 7 7 7 7 7 7 7 7 7 7
7 7 7 7 7 7 7 7 7 7 7
7 7 7
7 G v v v v v V 7
0 7 7 '7 '7 7 7 7 7 7 7
4" CLEAN COARSE SAND
SEDIMENT SCREEN ELEV. 66.50'
SEDIMENT STORAGE AREA
(CLEANOUT WHEN SEDIMENT
IS 1' DEEP)
ELEV. 69.17'
r THREADED
1 COUPLING
5 0'
6-8
CARRY RIP -RAP UP
T❑P OF BERM SIDES OF SPILLWA
_TOP ELEVATION OF STORM WATER -JJ r
F<O FL❑OD STI�RAGE Z❑NE 1'
4' MIN
SEDIMENT STORAGE ZONE
\ 3'CT❑TAL BASIN CAPACITY) S' -
MAXIMUM LEVEL ❑ MAX, SEDIMENT DEPTH
SEDIMENT COLLECTED
CLEAN BASIN WHEN 15,
THIS LEVEL IS REACHED MIN,
SECTION THRU BASIN & FILTER
NO SCALE
CARRY RIP -RAP UP
SIDES OF SPILLWAY
10' MIN.
1' MIN.
FREEBOARD
3' MIN,
7' APPR❑X
�
SECTION
THRU BERM & FILTER
NO SCALE
ROUND
MIN
MIN•
1'
1 EB❑ARD y
M'T
01
O0DO0 MIN,O
O O O
__#5 WASHED #1 RIP -RAP
STONE
- 8' MIN.
#1 RIP -RAP /
#5 WASHED STONE PERSPECTIVE VIEW
NO SCALE
16'-0' TYPICAL
SEDIMENT BASINS
�1 "D" 2' TYPICAL�I�111
NOT TO SCALE
MAY REDUCE TO 3:1
1 SLOPE WHEN DEPTH
"D" EXCEEDS 3'-0"
TYPICAL DITCH
NOT TO SCALE
ti l 11�11
. 11_1_ 1111-=1� SQD. 11�COURSE SAND
�1-11DEPTH VARIES
�111= 00000000
1�11 O O O O 11��'STONE WRAPPED
00000000 111IN FABRIC
0 0000001
i
<�oa000o
o
0°o°O°O°
O O O O ELEV.=65't
STONE CONDUIT WITH 'SWALE
NOT TO SCALE
8' MAX. FOR WIRE kESH
SUPPORTED FABRIC
6' MAX. FOR NON-UrIRE NOTE: BASINS WITH 0'-6" ##5 STONE SHALL
HAVE 0'-3" SAND, PLUS SOD
MESH SUPPORTED FABRIC
TOP OF BANK 21.0
FABRIC ELEV. 68.5' (TYP)
12" PVC
TOP 67.5'
CENTIPEDE SOD
6" COARSE SAND
O O 0 0 0 0 0 0 D O O O Oq O O O°O
0 0 afl°fl°fl°fl°0000°00°;
} O G O O O fl 0 0 0 O O O O O O 0000 O C
°o°°°°°0°0°0°0000 o0°°o°a0 a 00°0°°c
1 -D #5. STQ,NE }°0°p°0000000000000 0 0 0°00000 04°fl°O°O°O.
°°°0°°°a0000°a°o°a o°a°o°ogoQ0°a0 0 Q°
IN MRAFi 140N FABRIC }°ofl°O°O°°°0o0°°°0° 000000000Q0°O°O°O°C
}°000°0000000000 0O 00000000000°fl°O°O°C
ELEV. fi5.9O' 0 coo
° ° ° ° ° ° ° ° ° ° o ° ° o °
6" PERF, PVC TYP.
4
a d
a 4 a ELEV. 68.50'
7 7 7 7 7 7 7 7 7 7 7
7 7 7 CAP OR PLUG ��IRAFI 140N OR EQUAL
77070 7777V�7 NON -WOVEN FILTER
7 7 0 7 17 FE+_BRIG
a o 0
- - - 7 ELEV. 67.50'
CONCRETE SLAB
CATCH- BASIN DETAIL
NOT TC SCALE
ELEV, 64,35'
NOTE: 90' ELBOW MUST BE
REMOVABLE TO ALLOW
SEDIMENT SCREEN REMOVAL
BRICK, BLOCK, OR PRE --CAST BASIN
TYPICAL CROSS-SECTION WITH
1'-0" STONE; SAND; SOD
NOT TO SCALE
-3 5 8"
1'-3 5 8"
14 "
Cal
r�
I
1 /2" TYP.
00
�}
I
I
***CAU TI ON ***
N.C. ONE CALL: UTILITY LOCATOR SERVICE
3 DAYS BEFORE DIGGING CALL
TOLL FREE 1-800-632-4949
A ONE CALL SYSTEM FOR COMMUNITY AND JOB SAFETY.
**' CAUTION ***
THE UNDERGROUND UT.LITIES SHOWN HAVE BEEN LOCATED
FROM FIELD SURVEY INFORMATION AND EXISTING DRAWINGS.
THE SURVEYOR MAKES NO GUARANTEE THAT THE UNDERGROUND
UTILITIES SHOWN COMPRISE ALL SUCH UTILITIES IN THE AREA,
EITHER IN SERVICE OR ABANDONED_ THE SURVEYOR FURTHER DOES
NOT WARRANT THAT THE LNDERGROUND UTILITIES SHOWN ARE IN
THE EXACT LOCATION fNDICATED, ALTHOUGH HE DOES CERTIFY THAT
THEY ARE LOCATED AS ACCURATELY AS POSSIBLE FROM INFORMATION
AVAILABLE. THE SURVEYOR HAS NOT PHYSICALLY LOCATED THE
UNDERGROUND UTILITIES.
DO r-
BACKWATER ALONG DITCH
IN FROM DITCH
ELEV. 63.24' W,
1
3
MAXIMUM SEDIMENT
DEPTH = 0.75'
4" PVC STUBBED INTO BOX
OUTLET BOX
00
N
'4 T
CONSTRUCTION SEQUENCE
SUMMARY SITE DATA:
1. OBTAIN GRADING PERMIT.
2. INSTALL GRAVEL CONSTRUCTION PAD, TEMPORARY DIVERSIONS, SILT FENCING AND
TOTAL SITE ACREAGE: 23.71 ACRES
Z
SEDIMENT BASINS AS SHOWN ON THE PLAN. CLEAR ONLY AS NECESSARY TO
0
w
INSTALL THESE DEVICES.
ZONING - IW
BUILDING DENSITY: 47,194 SF (1.08 ACRES)
WLLJ
3. MAINTAIN DEVICES AS NEEDED. ROUGH GRADE SITE.
NET DENSITY: 1.08 ACRES / 23.71 ACRES = 5% BUILDING COVERAGE
TOTAL IMPERVIOUS AREA: 249163 SF = 5.72 ACRES
-
4. INSTALL STORM SEWER (IF SHOWN) AND PROTECT INLETS WITH SILT FENCING,
IMPERVIOUS PERCENT: 24.0%
c�
SEDIMENT TRAPS OR OTHER APPROVED MEASURES AS SHOWN ON THE PLAN,
BEGIN CONSTRUCTING BUILDING.
a
SEEDING ON ROADWAY
5. STABILIZE SITE AS AREAS ARE BROUGHT UP TO FINISH GRADE WITH VEGETATION,
PAVING, ETC.
* FOR LAWNS AND ROADWAY SHOULDERS, DOUBLE RATE SHOWN.
6. IF SITE IS APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT FENCING, SEDIMENT
SEEDING DATES SEED TYPE SEEDING RATE PER ACRE
BASINS, ETC., AND SEED OUT OR PAVE ANY RESULTING BARE AREAS.
FEBRUARY-MAY * TALL FESCUE 120 lbs.
W
CONSTRUCTION
(KENTUCKY 31)
w
(FESTUCA ARUNDINANCEA)
1. Construct the silt fence of standard strength or extra
strength synthetic filter fabrics.
JUNE-DULY *TALL FESCUE 120 lbs.
({�
(KENTUCKY 31)
2. Construct the filter fabric from a continuous roll cut
(FESTUCA ARUNDINANCEA)
to the length of the barrier to avoid joints. When joints
+
are necessary, securely fasten the filter cloth only at a
BROWN TOP MILLET 25 Ibs.
Q
support post with overlap to the next post.
(SETARIA PANICUM)
3. Support standard strength filter fabric by wire mesh
or
SORGHUM-SUDAN HYBRID 25 lbs.
w
fastened securely to the upslope side of the posts using
(SORGHUM-SUDANESE)
heavy duty wire staples at least 1 inch long, or tie wires.
Extend the wire mesh support to the bottom of the trench.
AUGUST-OCTOBER * TALL FESCUE 120 lbs.
(KENTUCKY 31)
4. When a wire mesh support fence is used, space posts
(FESTUCA ARUNDINANCEA)
a maximum of 8 foot apart. Support pasts should be driven
securely into the ground to a minimum of 2 foot
NOVEMBER-JANUARY * TALL FESCUE
120 Ibs.(KENTUCKY
31)
5. Extra strength filter fabric with 6 foot post
(FESTUCA ARUNDINANCEA)
spacingdoes not require wire mesh support fence. Staple
fence or wire the filter fabric direct) to posts.
y p
SHOULD THE DEVELOPER PREFER A BERMUDA GRASS GROUND COVER,
OPERATION
THE FOLLOWING MIXTURE SHALL BE USED:
J.
Inspect silt fences at least once a week and after each
SEEDING DATES SEED TYPE SEEDING RATE PER ACRE
rainfall. Make any required repairs immediately. Should the; �^
fabric of a sediment fence collapse, tear, decompose or APRIL-SEPTEMBER COMMON BERMUDA GRASS 10 lbs.
become ineffective, replace it promptly. Remove sediment (HULLED) .-, �abr ,
deposits as necessary to provide adequate storage volume (CYNODUN DACTYLON) _��
for the next rain and to reduce pressure on the fence. Take +
care to ovoid undermining the fence during cleonout. WEEPING LOVEGRASS 4 lbs.
(ERDGROSTIS CURUULA) qt
REMOVAL OCTOBER-MARCH COMMON BERMUDA GRASS 10 lbs.
When contributing drainage areas have been properly (UNHULLED) •
stabilized, grade and stabilize the area disturbed by silt (CYNODUN DACTYLON)
fence removal and cleanup.
SHOULD THE DEVELOPER PREFER A CENTIPEDE GRASS GROUND COVER, EI II 00
00
NOTE: THE FOLLOWING MIXTURE SHALL BE USED:
PROVIDE A GROUNDCOVER (TEMPORARY OR PERMANENT) ON EXPOSED SLOPES WITHIN 21 SEEDING DATES SEED TYPE SEEDING RATE PER ACRE I I w N
CALENDAR DAYS FOLLOWING COMPLETION OF ANY PHASE OF GRADING; AND, A PERMANEMT I I I f n
GROUNDCOVER FOR ALL DISTURBED AREAS WITHIN 15 WORKING DAYS OR 90 CALENDAR DAYS APRIL--SEPTEMBER CENTIPEDE 2 lbs. I I LLJ Z
(WHICHEVER €5 SHORTER) FOLLOWING COMPLETION OF CONSTRUCTION OR DEVELOPMENT. + LLJ
WEEPING LOVEGRASS 4 lbs. Z � (0
(ERDGROSTIS CURUULA) (f) 0Y
OCTOBER-MARCH CENTIPEDE 2 lbs. J U
OVERFLOW ELEV. 65.0' LLI c
W = 34' OVERFLOW 65.5 "�` � Z N
\ ;�!59' MSL ` Ln
Ul(nCn 0 ZZ�
TREATMENT VOLUME 9' �J1 � � CK r , 0
FOREBAY 64.0' MSL, SHWT 0.75' J1 3 Lw L'J 0
3.0' 1'-0" MINIMUM 0.75' Z (V
1 1 BELOW PP ELEV. 6 Z Z w Z
PUMP PVC PIPE BERM 6 Q 59.5' >
50 GPM -
3 3 Z TREATED WOOD PERMANENT POOI. 7 --CL'
FRAME 1.5-J1 VEGETATED BENCH FOR WETLAND � U)
BOTTOM ELEV. 60' 58' MSL SPECIES PER RECOMMENDED
Es
W 0- 0 > j
MAXIMUM SEDIMENT ELEV. = 59.5' VARIETIES PER CHAPTERS 1 & 2 3
"WET DETENTION PONDS" &
EXTEND BEYOND "STORMWATER WETLANDS" OF
FRONT SLOPE N.C. COASTAL STORMWATER
SUMP WITH PUMPE70 KEEP TYPICAL CROSS-SECTION AT DETENTiO�N RULES �
FOREBAY WATER SURFACE POND W/ SEDIMENT FOREBAY
ELEVATION Q 63.0' (WILL
EMPTY FOREBAY IN 8 HRS.) NOT TO SCALE INTAKE PIPE TO BE 10'-C" MIN
4" PVC SCREW TYPE PLUG
TEMPORARY POOL ELEV. 6.5�?`
4" PVC TEE
PERMANENT POOL ELEV. 64.0'
4" PVC STUBBED TO 12"
12» BELOW PERM. POOL
L4" PVC CAP WITH HOLE DRILLED
DETAIL FOR OUTLET DEVICE FOR SMALL DIAMETER ORIFICE
(IF SMALL DIA. ORIFICE IS LARGER THAN 2--INCHES SUGGEST USING 6-INCH PVC PIPE)
POND BOTTOM ELEV. 58.0'
OUTLET DEVICE
NOT TO SCALE
CAP VARIES
Q -
TYPICAL SPACING 12"
M
r`
I
C•1 INLET SIZE
2-1 4"
4-1 6"
5---1 6"
HOLES SPACING
9-1.5" 3/R0W 3 ROWS
18-1.5" 3/ROW 6 ROWS
18-1.5" 3/ROW 6 ROWS
POND DRAWDOWN ASSEMBLY
NOT TO SCALE
4" OR 6" PVC SCHD 40 -"
TYPICAL HOLES
2"
TYPICAL DRAWDOWN MANIFOLD FOR INLETS
NOT TO SCALE
Z
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ISSUE DATE:Ub/U5/Ub
DRAWN BY: RBD
CHK'D BY: RSJ
JOB NO. 05206
DWG. NAME: DETAIL
SCALE:1A
HORIZ: N/A
VERT: N/A
2
SHEET 2 OF 2
cii