SW3220901_Plansheet - SCM Detail_20220914

11
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g 98
B"AINTENANC \ " t
AND/ACCESS /\
EAS ENT A\PEPJIN DE �P'�1E�JT'�,C� L'LC"E LITTORAL SHELFW/
" ` % � \" 'ARCC E C 61 #� 1 1 c E \ \ \ SLOPES TO BE SEEDED WITH TALL FESCUE WETLAND PLANTINGS
` I B 32 8 G �2� 1 \ \ 3 ?0 PER EROSION CONTROL PLANS OUTLET STRUCTURE WITH 6' MIN. WIDTH
` 32.132, A �E E D " \ MAINTENANCE ACCESS 300 YEAR EVENT RIPRAP BERM AND WEIR TRASH RACK 1' MIN. MAINTENANCE ACCESS
.451 AC+ " C E E ( �G /� 30 MIN. STORMWATER STORAGE CLASS B RIPRAP WATER QUALITY ORIFICE FREEBOARD 0' MIN
WAX H W OCII G: ELEV. 637.54 15 MIN. DEPTH LOCATED THIS SIDE SEE DETAIL
k 1 P ELEV. 639.00 - TOP ELEV. 635.00 -ELEV. 639.00
-...- ... - ... �... ... - ... -... ... -... - - - - - EMERGENCY WEIR
-..-...-...-. -...-...-...-...-...-...-..
\20'EMERGEIiICYSPILLW Y RI1�RP► TPo�...-...-...-=..-...-...-...-...-... ...-...-...-..50YR-,HWEL637.30 ... ... ...
-... -... ELEV.637.50
a 'APRON � � 25 YR - HW EL 637.03
.-...-...-...-...-...-... ...-... -...
�4 \LE/.637.50-TEIVIPORAliYY00t- PERMANEN�OL
D FES ' ` 10 YR - HW EL 636.54
` HEADWALL OR FES E[E1r63"'
� INV=633.50-...-... ...-...-...--..-...-... ... ,-S,
°°°- 1 MIN. 2YR HW EL635.50
12 DPE -
x „Ill Rio io:is�o ..,. tj aj
\ \ STORM INLET ENERGY DISSIPATER 10' LITTORAL SHELF
10 �19P OF SEA ti' INV = 626.13 117 LF-36 RCP @ 1.11
xV �-��� / III
ELEV. 639•
00 / STABILIZED TO POND _I
BOTTOM IN POND
SEDIMENT FOREBAY SEDIMENT STORAGE TOP ELEV = 6 8.00
�` '� f � "•� •� "'"• hANTI-SEEP COLLARS
--638 - f " " SEDIMENT STORAGE TOP ELEV = 629.00
s \ - BOTTOM ELEV. 627.50 • MATERIAL: CLASS B CONCRETE
v......
=6 / / BOTTOM ELEV = 628.50 ANTI -FLOATATION PAD • HEIGHT: COLLAR MUST EXTENDED 18"
ABOVE THE TOP OF PIPE AND 12" BELOW
35 77THE BOTTOM OF THE PIPE TRENCH
©: ���� ���� ��� �` POND CROSS SECTION "
f �`
pER • WIDTH: COLLAR MUST EXTENDED 6
633.5 BEYOND TRENCH SIDEWALLS
W W W W Ej• W W W / NOT TO SCALE
wow
��� � � � � � �� •„�-� / • THICKNESS: 12"
W
w w W W 633 632 631 w �6&S
" 63 64 W W
TRASH RACK
SEE DETAIL THIS SHEET
645 bta AN175EEPOLLARS VALVE STEM EXTENSION
° .. .0 .. 12" BELOW GRATE
OUTLET CONTRO)_C STR 1RE W W w E w• j " % ..,.. 625 •
I TOP OF STRUCTURE
f SEE'DETAIILTHI=SIHH E I.r W (/ HDPH`
ELEV. 636.50
° W
W
W � 4,
WSW'.-
° STEPS PER NCDOT STD. 840.66
w gl l_
PERMANENT POOL LEVEL TO BE ° 2'
I x 11 f PERMANENTLY MARKED ON FRONT 2' RECTANGULAR WEIR
y OF CONTROL STRUCTURE WITH 2.5" WATER QUALITY ORIFICE ELEV: 635.00
STAFF GAUGE OR SIMILAR DEVICE BLEEDER
W ) 11 j m e I INV, 633.50 °
'S� 1 1 l WW W /� / f/ l 4" PERMANENT POOL
ELEV. 633.50 INV = 633.50
w w 2 "'° l W w 11 11 1 1# l 1 1 = 2.5" WATER QUALITY
W W c GROUND AT FRONT OF STRUCTURE
M _ r, .° / a ELEV. 632.00 ORIFICE BLEEDER a
2' RECTANGULAR WEIR
^ "o / / I I ( 1 ELEV. 635.00
4Oco
�M
vim• ••..0 .. / / / / J f PRECAST CONCRETE STRUCTURE 2:1 SLOPE
i INSIDE DIMENSIONS SIX 5'
(NCDOT STD 840.45)
W .. „� "�• W w w �•W � � °� 6" WALL THICKNESS
W LF - - / / MAA
IN x / /UREITOHEIIRS 36" RCP
W OTTQNhP6°ND ELEV-= U730- W / / / I / OARCEL 614 3 INV: 626.13
° SEDIMENT STORAG�T6P/Et�V = 628.00 ( (l P N DE�b AVA BLE 4" DIP DRAIN
E UNIOJ CO TYZONING: 20 MIN.IFTCLEARANCE
V � � � � � �} � �• , W W �� �" � j 1� � $,�•° TO STRUCTURE WALL
PLANT SCHEDULE I BMP-WET POND
VEGETATED SHELF 4,162 SQ. FT.
VEGETATED SHELF PLANTS (50 / 200 SQ. FT.) I 1,040 HERBACEOUS PLANTS
COMMON NAME
BOTANICAL NAME
SIZE
SPACING
CITY.
SWAMP MILKWEED
Asclepias incarnata
PLUGS
24" O.C.
347
QUILL SEDGE
Carex tenera
PLUGS
24" O.C.
347
WHITE TURTLEHEAD
Chelone glabra
PLUGS
24" O.C.
346
* EQUIVALENT PLANTS MAY BE USED AS IDENTIFIED IN NCDEQ STORMWATER DESIGN MANUAL C-3 WET
POND, TABLE 3: PLANTS FOR SUBMERGED AND PARTIALLY SUBMERGED VEGETATED SHELVES
TRASH RACK
SEE DETAIL THIS SHEET
4
VALVE STEM EXTENSION
WITH SUPPORTS MOUNTED °
TO STRUCTURRE ALL_ °
4" GATE VALVE
1' 4" DIP
10:1 SLOPE
L„
w w m N �•"' W' � �,. W w w w / / / � � STRUCTURE BOTTOM
/ � � L � Q a 36 RCP
W IJ
N°/ x E� " p \ INV: 626.13
W
WWw � W
° °
�,J P / ANTI- BLOCK °ANTI=FLOTA BLOCK
645 " �� r MIN. DIMENSIONS: MIN. DIMENSIONS:
7PW X 7'L 3'H ° 7PW X 71 X 1'H °
W RIPRAP BERM"
Nw w .... w
4" DIP DRAIN TO
w s. w� FPOND BOTTOM
FRONT VIEW SIDE VIEW
OUTLET STRUCTURE OUTLET STRUCTURE
x NOT TO SCALE
. w
w MAINTENANCE SCHEDULE
w W
v
�r :.w
P
1. POND WILL BE USED AS A EROSION CONTROL SEDIMENT BASIN DURING THE CONSTRUCTION PHASE OF THE PROJECT. PRIOR TO
w
v
W
w
w W ACCEPTANCE OF THE WET POND FOR OPERATION THE FOLLOWING ITEMS MUST BE COMPLETED: POND CONSTRUCTION SEQUENCE
..........m
1. POND WILL BE USED AS A EROSION CONTROL SEDIMENT BASIN DURING THE CONSTRUCTION PHASE OF THE
A. THE POND MUST BE CLEANED OF ALL SEDIMENTS ACCUMULATED DURING CONSTRUCTION.
PROVIDE' StDIME B. THE CONTROL STRUCTURE SHALL BE INSTALLED PER THE DESIGN.
PROJECT. PRIOR TO ACCEPTANCE OF THE WET POND FOR OPERATION THE FOLLOWING ITEMS MUST BE
fi
STAKE IN FOREBAY, E ( " - COMPLETED:
w w W� I � � �, �, _ � C. ALL VEGETATIVE PLANTINGS SHALL BE ESTABLISHED.
7 D. THE POND WATER LEVEL SHALL BEAT THE PERMANENT POOL ELEVATION. RIPhAP APRON A. THE POND MUST BE CLEANED OF ALL SEDIMENTS ACCUMULATED DURING CONSTRUCTION.
W } -
w W w W W B. THE CONTROL STUCTURE SHALL BE INSTALLED PER THE DESIGN.
M M ^ 00 O 2. AFTER EVERY SIGNIFICANT RUNOFF PRODUCING RAINFALL EVENT AND AT LEAST MONTHLY:
M C. ALL VEGATATIVE PLANTINGS SHALL BE ESTABLISHED.
A. INSPECT THE WET DETENTION BASIN SYSTEM FOR SEDIMENT ACCUMULATION EROSION TRASH ACCUMULATION VEGETATED D. THE POND WATER LEVEL SHALL BEAT THE PERMANENT POOL ELEVATION.
B2 -FES M W w w <y°�a COVER, AND GENERAL CONDITION. 2. CONTRACTOR SHALL PROVIDE AS BUILT INFORMATION TO THE ENGINEER FOR FORMAL CERTIFICATION OF
J J B. CHECK AND CLEAR THE ORIFICE OF ANY OBSTRUCTIONS SUCH THAT THE DRAWDOWN OF THE TEMPORARY POOL OCCURS THE COMPLETION OF THE BMP TO THE DESIGN PARAMETERS.
WITHIN 2 TO 5 DAYS AS DESIGNED.
�OOEB Y � �0���
O w� Liw m � "� / 1 �, � 2. REPAIR ERODED AREAS IMMEDIATELY. RE -SEED THE EMBANKMENT AS NECESSARY TO MAINTAIN GOOD VEGETATIVE COVER. MOW
NI _
BOTTOM POND ELEV 628.50 n, Z � � � � � VEGETATIVE COVER ON EMBANKMENTTO MAINTAIN MAXIMUM HEIGHT OF SIX INCHES, REMOVE TRASH AS NEEDED. BMP PLANTING NOTES
W SEDIMENT STORAGE TOP LO
W W ELEV = 629.00 m w p / 3. INSPECT AND REPAIR THE COLLECTION SYSTEM (i.e. CATCH BASINS, PIPING, SWALES, RIPRAP, ETC.) QUARTERLY TO MAINTAIN PROPER 1. IF BARE ROOT SPECIMENS ARE NOT TO BE USED WITHIN 4 DAYS, THEY SHOULD BE PLANTED IN SUITABLE
LU
RIPRAP a w w w p _ + �" FUNCTIONING. BEDS WITH THE ASSUMPTION THAT IT WILL BE A WHILE BEFORE THEY CAN BE USED. AND THEY SHOULD BE
I l,, PROVIDED WITH CONDITIONS MAKING IT POSSIBLE FOR THEM TO SURVIVE AND GROW AS OPTIMALLY AS
E APRON / B ICE J 4. REMOVE WOODY VEGETATION NOT PART OF THE APPROVED PLAN ALONG THE DAM EMBANKMENT. POSSIBLE.
MELIIDA D RRIS
C} E 5. REMOVE INVASIVE AND DEAD VEGETATION IN THE LITORAL SHELF AND REPLANT AS NECESSARY. 2. CONTAINER PLANTS WILL NEED TO BE WATERED REGULARLY (SEVERAL TIMES DAILY WHEN WEATHER IS
/
/# PARC L �06f41014/ HOT).
W w " 1 DB 500, 'IG 344 6. REMOVE ACCUMULATED SEDIMENT FROM THE WET DETENTION BASIN SYSTEM SEMI ANNUALLY OR WHEN THE DEPTH IS REDUCED TO 75%
OF THE ORIGINAL DESIGN DEPTH. REMOVED SEDIMENT SHALL BE DISPOSED OF IN AN APPROPRIATE MANNER AND SHALL BE HANDLED IN A 3. PIN ALL SUBMERGED/FLOATING PLANT MATERIAL SECURELY TO THE BOTTOM OF THE POND WITH 12" BENT
U11N CQU NTY ON NG R-20 MANNER THAT WILL NOT ADVERSELY IMPACT WATER QUALITY (I.E. STOCKPILING NEAR A WET DETENTION BASIN OR STREAM, ETC.). WIRE PINS.
I I 7. PERFORM ANNUAL INSPECTION OF THE POND (ANNUAL INSPECTION REPORTS TO BE KEPT BY THE OWNER). PRIOR TO INSPECTION 4. CUTBACK TALL AND EASILY BROKEN LEAVES AND STEMS AT THE TIME OF TRANSPLANTING.
NOTIFICATION MUST BE GIVEN TO STORM WATER SERVICES.
5. NEWLY RECEIVED NURSERY STOCK AND DISTURBED TRANSPLANTS SHOULD NOT BE EXPOSED TO DIRECT SUN
t� I
I �
I
x
97
10' SDWK $r 15' G_ ,. EL
UTIL ESMT. DRIVE
BMP o.
WITH -c
a
° a N\ 146-CB as
I� a a � i
-%� GHT ROAD
57, PUBLIC/W -TOWN OF WAXHAW
LO IN,
..,...
I
1
8. A DAM SAFETY EXPERT SHALL BE CONTRACTED TO MAKE INSPECTIONS OF THE DAM.
ANY MORE THAN NECESSARY UNTIL THEY ARE PLACED IN THEIR PERMANENT POSITIONS.
GRAPHIC SCALE
f
9. MAINTENANCE SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR FOR ONE (1) CALENDAR YEAR FOLLOWING THE CERTIFICATION OF
6.
INSERT DRY FERTILIZER TABLETS OR SPIKES NEAR THE PLANTS AT THE TIME OF TRANSPLANTING.
j 20
0 10 20
40 COMPLETION, AND THEREAFTER SHALL BE THE RESPONSIBILITY OF THE SUBDIVISION HOMEOWNER'S ASSOCIATION.
RIP J ,�
#
7.
FENCE ENTIRE PLANTING AREA WITH 36" TALL PLASTIC FENCE WITH 1.5"12" OPENINGS. PLASTIC SHALL BE
UV STABLE. COLOR SHALL BE BLACK. INSTALL WITH STEEL POST SPACED AT 10' O.C. MAX. PIN THE BOTTOM
!
AP N
��
LAYER OF THE FABRIC TO THE GROUND WITH 10-12" PINS. FENCING TO REMAIN IN PLACE FOR A PERIOD OF
l 1f�
( IN FEET)
THE ONE YEAR POST INSTALLATION OF PLANT MATERIAL.
x
C4- S
f
1 inch = 20 ft.
8.
STAKE 9" AND 18" PLANTING ZONES PRIOR TO INSTALLATION AND VERIFY AREAS ON PLAN.
24" 36" RCP
-
9.
PLANTS ARE TO BE INSTALLED IN A RANDOM ARRANGEMENT WITHIN THEIR RESPECTIVE ZONES. INDIVIDUAL
p
-
-
SPECIES MAY BE PLANTED TOGETHER IN GROUPS OF 3 TO 5. PLANTS MAY ALSO BE PLANTED INDIVIDUALLY.
Uj
OiARLES MCCLUf
"
(3) #4 BARS @ 6" O.C.
10.
PLANT QUALITIES ARE TO BE VERIFIED BY CONTRACTOR PRIOR TO INSTALLATION.
cp
PARCI' ,0614015
W/3" CLR. EA. WAY
11.
NO TREES OR WOODY SHRUBS SHALL BE PLANTED ON WET POND EMBANKMENTS.
" DEW AVOABLE I
rn
rn
",No,
UN40N COVNTY ZONING: R-70
CONCRETE
12.
SEE NCDEQ WETPOND DETAIL FOR PLANTING INFORMATION.
COLLAR
33" 33"
2.00'
C
66
�" ah
TOP OF FOREBAY BERM
OUTLET STRUCTURE
2.5" PVC
ELEV=633.00
GENERAL NOTES:
ELEV = 635.00-
CREST OF 10' RIPRAP
1
SPILLWAY ELEV=633.00
1. SEE CONCRETE BARREL AND RISER SPECIFICATIONS (THIS SHEET)
ELEV = 633.50-
RIPRAP
2. ALL SOIL UNDERLYING AND ADJACENT TO RISER AND FOOTING PERMANENT POOL p
2
TO BE COMPACTED TO 98% MAXIMUM DRY DENSITY AS DETERMINED -
BY ASTM D-698 (STANDARD PROCTOR) UNDER THE DIRECTION
9" THICK CLASS
TOP OF BERM
FOREBAY III III III (�
- -III-
( -
-III-
-III MAIN POND
OF THE GEOTECHNICAL ENGINEER.
B RIPRAP
ELEV =639.00
/ �`
2
III -III -III III-III_III-III=11
3. WATERTIGHT RUBBER BOOTS TO MEET THE ASTM C923-84 STANDARD
3
-1 I - -1 I 1-1 1 1-1 1 I-1 SPECIFICATIONS FOR RESILIENT CONNECTORS BETWEEN REINFORCED 2.5 WATER QUALITY ORIFICE EMERGENCY SPILLWAY
- - - - - - - - CONCRETE MANHOLE STRUCTURES AND PIPES.
CREST ELEV = 637.50
20'
---J/ RIPRAP BERM DETAIL CONCRETE ANTI -SEEP COLLAR DETAIL WATER QUALITY ORIFICE DETAIL
EMERGENCY SPILLWAY DETAIL
NOT TO SCALE NOT TO SCALE NOT TO SCALE NOT TO SCALE.
NOT TO SCALE
OPERATION AND MAINTENANCE PROVISIONS FOR WET PONDS
(PER NCDEQ STORMWATER MANUAL)
SCM ELEMENT
POTENTIAL PROBLEMS
HOW TO REMEDIATE THE PROBLEM
THE ENTIRE SCM
TRASH/DEBRIS IS PRESENT.
REMOVE THE TRASH/DEBRIS.
THE PERIMETER OF
AREAS OF BARE SOIL AND/OR EROSIVE
REGRADE THE SOIL IF NECESSARY TO REMOVE THE GULLY,
THE WET POND
GULLIES HAVE FORMED.
PLANT GROUND COVER AND WATER UNTIL IT IS
ESTABLISHED. PROVIDE LIME AND A ONE-TIME FERTILIZER
APPLICATION.
THE INLET DEVICE
THE INLET DEVICE IS CLOGGED (IF
UNCLOG THE PIPE. DISPOSE OF THE SEDIMENT IN A
APPLICABLE)
LOCATION WHERE IT WILL NOT CAUSE IMPACTS TO
STREAMS OR THE SCM.
THE INLET PIPE IS CRACKED OR OTHERWISE
REPAIR OR REPLACE THE PIPE.
DAMAGED (IF APPLICABLE).
EROSION IS OCCURRING IN THE SWALE (IF
REGRADE THE SWALE IF NECESSARY AND PROVIDE
APPLICABLE).
EROSION CONTROL DEVICES SUCH AS REINFORCED TURF
MATTING OR RIPRAP TO AVOID FUTURE EROSION
PROBLEMS.
THE FOREBAY
SEDIMENT HAS ACCUMULATED TOADEPTH
SEARCH FOR THE SOURCE OF THE SEDIMENT AND REMEDY
GREATER THAN THE ORIGINAL DESIGN
THE PROBLEM IF POSSIBLE. REMOVE THE SEDIMENT AND
DEPTH FOR SEDIMENT STORAGE.
DISPOSE OF IT IN A LOCATION WHERE IT WILL NOT CAUSE
IMPACTS TO STREAMS OR THE SCM.
EROSION HAS OCCURRED.
PROVIDE ADDITIONAL EROSION PROTECTION SUCH AS
REINFORCED TURF MATTING OR RIPRAP IF NEEDED TO
PREVENT FUTURE EROSION PROBLEMS.
WEEDS ARE PRESENT.
REMOVE THE WEEDS, PREFERABLY BY HAND. IF PESTICIDE
IS USED, WIPE IT ON THE PLANTS RATHER THAN SPRAYING.
THE VEGETATED
BEST PROFESSIONAL PRACTICES SHOW
PRUNE ACCORDING TO BEST PROFESSIONAL PRACTICES.
SHELF
THAT PRUNING IS NEEDED TO MAINTAIN
OPTIMAL PLANT HEALTH.
PLANTS ARE DEAD, DISEASED OR DYING.
DETERMINE THE SOURCE OF THE PROBLEM: SOILS,
HYDROLOGY, DISEASE, ETC. REMEDY THE PROBLEM AND
REPLACE THE PLANTS. PROVIDE AONE-TIME FERTILIZER
APPLICATION TO ESTABLISH THE GROUND COVER IF A SOIL
TEST INDICATES IT IS NECESSARY.
WEEDS ARE PRESENT.
REMOVE THE WEEDS, PREFERABLY BY HAND. IF PESTICIDE
IS USED, WIPE IT ON THE PLANTS RATHER THAN SPRAYING.
THE MAIN
SEDIMENT HAS ACCUMULATED TOADEPTH
SEARCH FOR THE SOURCE OF THE SEDIMENTAND REMEDY
TREATMENTAREA
GREATER THAN THE ORIGINAL DESIGN
THE PROBLEM IF POSSIBLE, REMOVE THE SEDIMENT AND
SEDIMENT STORAGE DEPTH.
DISPOSE OF IT IN A LOCATION WHERE IT WILL NOT CAUSE
IMPACTS TO STREAMS OR THE SCM.
ALGAL GROWTH COVERS OVER 50%OF THE
CONSULT A PROFESSIONAL TO REMOVE AND CONTROL THE
AREA.
ALGAL GROWTH.
CATTAILS, PHRAGMITES OR OTHER
REMOVE THE PLANTS BY WIPING THEM WITH PESTICIDE
INVASIVE PLANTS COVER 50%OF THE
(DO NOT SPRAY).
BASIN SURFACE.
THE EMBANKMENT
SHRUBS HAVESTARTEDTOGROWONTHE
REMOVE SHRUBS IMMEDIATELY.
EMBANKMENT
EVIDENCE OF MUSKRAT OR BEAVER
CONSULT PROFESSIONALTO REMOVE MUSKRATS OR
ACTIVITY IS PRESENT.
BEAVERS AND REPAIR ANY HOLES OR EROSION.
A TREE HAS STARTED TO GROW ON THE
CONSULT A DAM SAFETY SPECIALIST TO REMOVE THE TREE.
EMBANKMENT.
AN ANNUAL INSPECTION BY AN
MAKE ALL NEEDED REPAIRS IMMEDIATELY.
APPROPRIATE PROFESSIONAL SHOWS THAT
THE EMBANKMENT NEEDS REPAIR.
THE OUTLET DEVICE
CLOGGING HAS OCCURRED.
CLEAN OUT THE DEVICE AND DISPOSE OF ANY SEDIMENT IN
A LOCATION WHERE IT WILL NOT CAUSE IMPACTS TO
STREAMS OR THE SCM.
THE OUTLET DEVICE IS DAMAGED
REPAIR OR REPLACE THE OUTLET DEVICE.
FLOATING WETLAND
WEEDS OR VOLUNTEER TREES ARE
REMOVE THE WEEDS OR TREES.
ISLAND (IF
GROWING ON THE MAT.
APPLICABLE)
THE ANCHOR CABLE IS DAMAGED,
RESTORE THE ANCHOR CABLE TO ITS DESIGN STATE.
DISCONNECTED OR MISSING.
THE RECEIVING
EROSION OR OTHER SIGNS OF DAMAGE
REPAIR THE DAMAGE AND IMPROVE THE FLOW
WATER
HAVE OCCURRED AT THE OUTLET.
DISSIPATION STRUCTURE.
DISCHARGES FROM THE WET POND ARE
CONTACTTHE LOCAL NCDEQ REGIONAL OFFICE.
CAUSING EROSION OR SEDIMENTATION IN
THE RECEIVING WATER.
I �
* * * 3 Days Before Digging
North Carolina 811
811 or1-800-632-4949
Remote Ticket Entry
http://nc811.org/remoteticketentry.htm
STIPULATION FOR REUSE
THIS DRAWING WAS PREPARED FOR USE
ON A SPECIFIC SITE, BLYTHE MILL ROAD,
NC CONTEMPORANEOUSLY WITH ITS ISSUE
DATE ON 05/10/22. AND IT IS NOT
SUITABLE FOR USE ON A DIFFERENT
PROJECT SITE OR AT A LATER TIME. USE
OF THIS DRAWING FOR REFERENCE OR
EXAMPLE ON ANOTHER PROJECT REQUIRES
THE SERVICES OF PROPERLY LICENSED
ARCHITECTS AND ENGINEERS.
REPRODUCTION OF THIS DRAWING FOR
REUSE ON ANOTHER PROJECT IS NOT
AUTHORIZED AND MAY BE CONTRARY TO
THE LAW.
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MODIFICATION LOG
JOB NUMBER: C210047
CHECKED BY: BHE
DRAWN BY: BHE
DATE: 05-10-2022
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SHEET: C595

NOTES:
1� 4-6 |wox LAYER OF AMENDED
so/L IS xsroowwswoso ON
urmwxL sxsuF AREA wxsns
pmwnwoS ARE Rsuu/nso (SEE
SOIL p*m*wETEno IN owp
oss/ow wAwuA0
o pnov/os no Acosss EAaEwswr
TO comwscrWsrpowo
cxsswswT TO osmoxrso moHr
OF wm'. *cocss ncwo sxAu
���1 suopc
HAVE w/m. `z. STABILIZED
WIDTH, MAX. uzwu. uxAos OF
���. MAX. onosa-s/ops oz� m
RIP RAP INLET
PROTECTION
OR INLET PIPE
powo MmwTswAmos /wrunM*Jmw
MUST BE POSTED AT SITE
posr oowyrmouno:
CONTROLS EASEMENT (PCCE)
p ALL BERM SLOPES TO BE
STABILIZED WITH GRASS.
SLOPE 3:1 SLOPE
RISER
PERMANENT-PDOL ELEV.
ORF'M RACK - PROTECTION
JEBpA
ARREL
4.
1 SLOPE'
MAINTENANCE DRAIN %
20' ACCESS
EASEMENT TO PUBLIC
PLAN V|�UU
/ �/-�/ x v / /_ vv
EMERGENCY SPILLWAY
OUTLET STRUCTURE WITH TRASH HACK. 6"
MIN. FREEBOARD FROM TEMP. POOL ELEV.
INVERTED WATER QUALITY ORIFICE `
LOCATED THIS SIDE (SEE OETA||)
50 YEAR EVENT
STORWWATER STORAGE
� 6' MIN. - FREEBOAR� \
TEMPORARY POOL-\ V \
MUST BE LINED AND STABILIZED
(10' MINIMUM LENGTH)
OPTIONAL: OUTLET STRUCTURE
MAY BE DES31GNED AS 50 YEAR
OVERFLOW IN LIEU OF EMERGENCY
WETLAND PLANTING ow
1» FOOT 10:1 LITTORAL
SHELF AROUND pER/wom
VU�T[](�N�� PLAN
vv�_// ��/v�/ '
NOT TO SCALE
405.1
LITTORAL SHELF WETLAND
PLANTINGS, 10' MIN. WIDTH
b^ FREEBOARD
/ EMERGENCY WEIR-�-- |F �"��`USED
--_�--- - ---�-- -�---_
PERMANENT PD0 7
_'�7_ ____' _�__-
� U
MAIN POND 1 COLLARS
BACK OF OUTLET STRUCTURE
LOCATED AT TOE OF 10:1 SLOPE
'(R An 0 ANTI —SEEP
ANTI -FLOTATION P- VIDUCTILE IRON MAINTENANCE
DRAIN PIPE WITH SLUICE
GATE OR VALVE. FFL|NE
FROM OUTLET AND LOCATE
VALVE |N BERM) O 5y�
P[}�[) �F�[}F��� �
STRUCTURE VALVE '� ---` - --
SLOPE MIN.
PERMANENT POOL
� LW/TER QUALITY 0R|F|
WATER QUALITY ORIFICE DETAIL
TOWN OF WAXHAW VV�T[][\NU
vv/_// ��/v//
LAND DEVELOPMENT STANDARDS| LITTORAL SHELF AND BERM DETAIL
1/2-X4` YEDGE OR EPDXY
ANCHM WITH WING NUT
AT SLOTTED CONNECTION
L��
r-�"'----' -/
2-FIAR SUPPORT
BARS BENT AT CENTER —
WELDED TO
PLATE 14 BAR
TS
TRASH RACK ANGILE,
BARS WELDED TO PLATE
VIEW
TRASH RACK DETAIL
NOT TO SCALE.
ourLsr STRUCTURE
WITH TRASH RACK.
h' w|N� FREEBOARD
POST CONSTRUCTION
FROM TEMP. pDVL
CONTROLS EASEMENT RIP RAP BERM
s|Ev
10' OFFSET FROM AND WEIR CLASS LITTORAL SHELF W/
SLOPE BREAK B RIP '' INVERTED^PLANTINGSWETLAND -
50 YEAR EVENT w|w. DEPTH. ^'^E'` QUALITY
ORIFICE
STORMWATER STORAGE -
SIDE
LOCATED THIS
6^ FREEBOARD
R��
F.E.S. OR wpURxRY POO�` \
''~`~~~`10:1 PERMANENT POOL —
SLOP
0 AL SHELF
ENERGY DISS
2:1 SLOPE STABILIZED
TO POND BOTTOM
Wmw POND-'
=°,�/ BACK OF OUTLET
SEDIMENT F0RE�".--
STRUCTURE
LOCATED AT TOE
OF 10:1 SLOPE
1. 4-6 |wCn LAYER OF AMENDED SOIL IS RECOMMENDED IN ANY
AREA WHERE PLANTINGS ARE REQUIRED (SEE NCDEQ STORMWATER BMP MANUAL).
1. PLANTINGS ZONES AND PLANT
SELECTION PER THE NCDB]
STORMWATER BMP MANUAL
CHAPTER 8 8c APPENDICES.
2. ALL PLANTINGS SHALL BE LOCAL
NATIVE SPECIES.
3. IRRIGATION MAY BE PROVIDED FOR
INITIAL ESTABLISHMENT AND DRY
SEASONS.
-FLOTATION PAD
VV�T�][�NFl PROFILE
vv�_/ / ��/x//
ZONE I
SEED
ZONE 5/6
PLAN VIEW
NOT TO SCALE
�(~xT1-L-' r hr A � � " It It `
�
POND CROSS SECTION
NOT TO SCALE
VU�T[]/�NFl
vv�_// ��/v��
PLANTING N[` PLAN
EMERGENCY WEIR
IF USED
ANxMEmT
POST CONSTRUCTION
CONTROLS EASEMENT
10' OFFSET FROM
ANTI-SEEPSLOPE BREAK
OLLARS
DUCTILE IRON
MAINTENANCE DRAIN
PIPE WITH SLUICE
GATE OR VALVE.
(orruwc FROM
OUTLET AND LOCATE
VALVE IN BERM)
0.5% SLOPE MIN.
NOT TO SCALE
406.1
NO TREES ON
EMBANKMENT
. , ^ °Ir _v"~
NOT TO SCALE
20' MAINTENANCE ACCESS
ACCESS ROAD
1' To z ABOVE *|nn emEn ELEVATION
~ HIGH WAT|
�n�w43:1 SrAmuZco S|opc -
1+. r10 FOOT LITTORAL SHELF
2/ FOOT MAINTENANCE ACCESS
15% MAXIMUM LONGITUDINAL SLOPE
SECTION AT MAINTENANCE ROAD ACCESS AND FDREBAY
3:1 STABILIZED 20' FOOT MAINTENANCE ACCESS
�N�N��ST Li�f �6' MINIMUM FREEBOARD ALONG MAINTENANCE ROAD
OUTLET
PERMANENT POOL ELEVATI(
/U' LITTORAL SHELFJ
SECTION AT STORMWATER OUTFALL
' MAINTENANCE ACCESS ROAD
31 2O MAINTENANCE ACCESS
' . ---- SLOPE / To 2 ABOVE H|Qi WATER ELEVATION
-----�- STRUCTURE
/-3:1 STABILIZED SLOPE/ HIGH WATER ELEVATION
MIN. STABILIZED
MAINTENANCE ROAD BED
5% MAX. CROSS SLOPE
-PERMANENT POOL ELEVATION
SECTION AT OUTLET STRUCTURE
NOT TO SC/\[[
VV�T[]ONU
vv /_ / / �� / v ��
CROSS SECTIONS
3 Days Before Digging
<
North Carolina 811
Remote Ticket Entry
STIPULATION FOR REUSE
THIS DRAWING WAS PREPARED FOR USE
ON A SPECIFIC SITE, BLYTHE MILL ROAD.
INC CONTEMPORANEOUSLY WITH ITS ISSUE
DATE ON 05/10/22. AND IT IS NOT
SUITABLE FOR USE ON A DIFFERENT
PROJECT SITE OR AT A LATER TIME. USE
OF THIS DRAWING FOR REFERENCE OR
EXAMPLE ON ANOTHER PROJECT REQUIRES
THE SERVICES OF PROPERLY LICENSED
ARCHITECTS AND ENGINEERS.
REPRODUCTION OF THIS DRAWING FOR
REUSE ON ANOTHER PROJECT IS NOT
AUTHORIZED AND MAY BE CONTRARY TO
THE LAW.
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IMODIFICATION LOG
JOB NUMBER: C210047
CHECKED BY: BHE
DRAWN BY: BHE
DATE: 0540'2022
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