SW6211201_Plansheet C-6.0-4 - Grading/Drainage Plan_20211210

10/22/2021

10/22/2021

10/22/2021

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�RIP-RAP OUTLET PROTECTION
NCDOT CLASS'B' RIP RAP 4
L=8, W1=4, D=18 W2=5, ,
ham° _ _
D50 6 , DMAX 9 � /{
1; FES#300
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65 LF 15" RCP @ 0.50%
jj
RIP RAP EMERGENCY SPILLWAY /� RS#301 .w
� A
" NCDOT CLASS "B" RIP RAP l /
CLASS "B" RIP RAP LINED /� �-- =-- - - - - 3:1 SLOPE
ll
FOREBAY WEIR '.
FOREBAY BERM = 78.50 CAST -IN -PLACE CONCRETE
FOREBAY WEIR = 77.50 SPILLWAY REFER TO
„ DETAIL, THIS SHEET
\ , 6' WIDE - 6:1 VEGETATED SHELF
TOP ELEV.= 78.00
P.POOL ELEV = 77.50
BOTTOM ELEV= 77.00
3:1 SLOPE
MAIN POND REFER TO SHEET C 6.4
PERMANENT POOL = 77.50 FOR VEGETATED SHELF
/ f / TEMPORARY POOL = 78.50 \ �, PLANTINGS
TOP SEDIMENT ELEV = 72.00
BOTT. SEDIMENT ELEV _71_50-) A�
I
SHALLOW WATER
SHALLOW LAND / \
�.-------------
y FOREBAY
I
TOP SEDIMENT ELEV = 75.00
BOTT SEDIMENT ELEV = 74.50 �. A
I
l 1 I \ /,°"SHALLOWWATR
_SHALLOW LAN
------------------------------
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.� I
FOREBAY 2'
TOP SEDIMENT ELEV = 75.00 -" " " f FES#100
p _
BOTT SEDIMENT ELEV = 74.50 3:1 SLOPE
t
YI#101
YI#201 �� CLASS "B" RIP -RAP LINED
FOREBAY WEIR
FOREBAY BERM = 78.50 F
FOREBAY WEIR = 77.50
8
"
SCALE: 1 IN = 20 FT GENERAL NOTES:
1
WET POND - PLAN VIEW 20 10 0 20 40
J1.3SCALE: V=20' SCALE IN FEET
HORIZONTAL
STORM DRAINAGE TABLE
RIM / CREST
INV IN
INV OUT
INLET# TYPE
ELEV
(FROM -SIZE)
(TO -SIZE)
77.18
300 FES
78.70
(301-15")
77.50
301 IRS
80.50
(300-15")
IriN Irr lr,m mvLu 11 maw, 1rrr it�r11a ar 1IV r do F�
TOP SEDIMENT) LEXIT
ELEV = 75.00 ELEV =
BOTTOM SEDIMENT
ELEV = 74.50
10' WIDE
PRECAST RISER STRUCTURE BERM
W/ TRASH RACK -REFER TO
DETAIL, THIS SHEET
.________________ELEV = 82.50
____
i� 3
100 YEAR.. 81.57 � CLAY LINER
25 YEAR ... ..... 80.92 ��i�i���i���i���i���i���i���i���i��i���i���i��i���i���i��i���i���i��i� i� (REFER TO NOTES)
10 YEAR 80.55 '%/%/i✓i✓i /i✓i✓i /i✓i✓i /i✓i✓i /i✓i✓i /i✓i✓i COMPACTED SUBGRADE
2 YEAR 79.16
1 YEAR 78.82
TOP OF DAM
2' MIN.
3 x DIA=3.75'**
3.75'
WET DETENTION BASIN - SECTION VIEW
SCALE: N.T.S
1 3'
15" RCP
OUTLET
FLOW
3.75'
4" PERFORATED PVC
WRAPPED IN FABRIC TO
DAYLIGHT
1.5xDIA=1.9'J L
4" PERFORATED PVC ** 2' MIN. FROM TOP OF DAM
WRAPPED IN FABRIC TO GOVERNS IF 3 x DIA. IS NOT FINE SAND FILTER
DAYLIGHT AVALIABLE. PER ASTM C33
NOTES:
1. CONTRACTOR SHALL INSTALL FILTER DIAPHRAGM ON DAM
OUTLET PIPE.
2. COORDINATE WITH ENGINEER ON APPROVED MATERIALS
AND INSTALLATION TECHNIQUES PRIOR TO INSTALLATION.
3 SAND DIAPHRAGM
J1.3SCALE: N.T.S.
TOP OF SEDIMENT
ELEVATION = 72.00
_ BOTTOM OF POND_
ELEV = 71.50
1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WITH NCDENR STANDARDS AND SPECIFICATIONS.
2. CONTRACTOR SHALL COORDINATE ALL GRADING OPERATIONS WITH THE OWNERS GEOTECHNICAL ENGINEER AS APPROPRIATE.
3. CONTRACTOR IS RESPONSIBLE FOR VERIFYING ALL GRADES PRIOR TO THE START OF CONSTRUCTION.
4. MAXIMUM SLOPE OF BASIN IS 3:1
5. ALL SIDE SLOPES, EMBANKMENTS AND SPILLWAYS SHALL BE COMPACTED TO A MINIMUM OF 95% STANDARD PROCTOR PER ASTM D-698.
6. CONTROLLED FILL AS SPECIFIED BY THE ENGINEER IN THE DAM EMBANKMENT SHALL BE PLACED IN 6-INCH LOOSE LAYERS (3-INCH LOOSE LAYERS WITHIN 3 FEET OF EITHER SIDE OF THE PRINCIPLE SPILLWAY PIPE TO A DEPTH OF
2-FEET OVER THE PIPE) AND SHALL BE COMPACTED TO A DENSITY OF NO LESS THAN 95% OF STANDARD PROCTOR MAXIMUM DRY DENSITY AT OPTIMUM MOISTURE CONTENT OR WITHIN 2%± IN ACCORDANCE WITH ASTM D698.
7. ALL VISIBLE ORGANIC DEBRIS SUCH AS ROOTS AND LIMBS SHALL BE REMOVED FROM THE FILL MATERIAL PRIOR TO COMPACTION TO THE REQUIRED DENSITY. SOILS WITH ORGANIC MATTER CONTENT EXCEED 5% BY WEIGHT
SHALL NOT BE USED. STONES GREATER THAN 3-INCH (IN ANY DIRECTION) SHALL BE REMOVED FROM THE FILL PRIOR TO COMPACTION.
8. FILL MATERIAL PLACED AT DENSITIES LOWER THAN MINIMUM SPECIFIED DENSITIES OR AT MOISTURE CONTENTS OUTSIDE THE SPECIFIED RANGES OR OTHERWISE NOT CONFORMING TO SPECIFIED REQUIREMENTS SHALL BE
REMOVED AND REPLACED WITH ACCEPTABLE MATERIALS.
9. ANY FILL LAYER THAT IS SMOOTH DRUM ROLLED TO REDUCE MOISTURE PENETRATION DURING A STORM EVENT SHALL BE PROPERLY SCARIFIED PRIOR TO THE PLACEMENT OF THE NEXT SOIL LEVEL.
10. SURFACE WATER AND STREAM FLOW SHALL BE CONTINUOUSLY CONTROLLED THROUGHOUT CONSTRUCTION AND THE PLACEMENT OF THE CONTROLLED FILL.
11. FOUNDATION AREAS MAY REQUIRE UNDERCUTTING OR COMPRESSIBLE AND/OR UNSUITABLE SOILS. ALL SUCH UNDERCUTTING SHALL BE PERFORMED AT THE DISCRETION OF THE GEOTECHNICAL ENGINEER AND SHALL BE
MONITORED AND DOCUMENTED. IN NO CASE SHALL THERE BE AN ATTEMPT TO STABILIZE ANY PORTIONS OF THE FOUNDATION SOILS WITH CRUSHED STONE.
12. TREATMENT OF SEEPAGE AREAS, SUBGRADE PREPARATIONS, FOUNDATION DEWATERING, AND ROCK FOUNDATION PREPARATION MAYBE REQUIRED AT THE DISCRETION OF THE GEOTECHNICAL ENGINEER.
13. FILL ADJACENT TO THE RISER AND PRINCIPAL SPILLWAY PIPE SHALL BE PLACED SO THAT LIFTS ARE AT THE SAME LEVEL ON BOTH SIDES OF THE STRUCTURE.
14. EARTHWORK COMPACTION WITHIN 3-FT OF ANY STRUCTURES SHALL BE ACCOMPLISHED BY MEANS OF HAND TAMPERS, MANUALLY DIRECTED POWER TAMPERS OR PLATE COMPACTORS OR MINIATURE SELF PROPELLED ROLLERS.
15. COMPACTION BY MEANS OF DROP WEIGHTS FROM A CRANE OR HOIST SHALL NOT BE PERMITTED.
16. HEAVY EQUIPMENT SHALL NOT BE ALLOWED TO PASS OVER CAST -IN -PLACE STRUCTURES UNTIL ADEQUATE CURING TIME HAS ELAPSED.
17. ALL RISER STRUCTURES, INCLUDING WEIR WALL TYPE STRUCTURES, SHALL BE REINFORCED CONCRETE. BRICK/CONCRETE BLOCK AND MORTAR TYPE STRUCTURES WILL NOT BE ACCEPTED.
18. ALL RISER STRUCTURES SHALL BE LOCATED SUCH THAT DIRECT ACCESS FROM THE DAM EMBANKMENT CAN BE ACHIEVED.
19. RISER STRUCTURES WITH MULTIPLE BARREL SECTIONS SHALL HAVE GASKETTED JOINTS, AND EACH SECTION SHALL BE BOLTED TO ADJACENT SECTIONS WITH STAINLESS STEEL STRAPS. STEEL STRAPS SHALL BE MINIMUM 4"
WIDE, 1/4" THICK, STRAP CENTERED ON JOINT WITH MINIMUM 2" OVERLAP. ATTACH STRAP TO BARREL SECTIONS WITH (2) 1/2" HEXBOLTS EMBEDDED IN STRUCTURE 3 INCHES. EPDXY BOLTS INTO STRUCTURE.
20. CLAY LINER SHALL BE A MINIMUM 8 INCHES THICK. CLAY LINER SHALL BE INSTALLED AT A DEPTH SUFFICIENT ENOUGH SUCH THAT IT DOES NOT IMPEDE THE GROWTH OF VEGETATION OR CAN BE PENETRATED BY ROOTS OF
VEGETATION. THIS DEPTH SHALL BE A MINIMUM OF 12" BELOW THE BOTTOM OF THE WETLAND. CLAY LINER SHALL LIMIT INFILTRATION RATE TO 0.01 IN/HR. CLAY LINER SHALL BE INSTALLED UP TO PERMANENT POOL ELEVATION
THROUGHOUT BMP. ALTERNATIVE LINERS MAYBE ACCEPTABLE IF APPROVED BY ENGINEER OF RECORD.
ANTI -VORTEX TRASH RACK
ANCHORED TO RISER.
CONTRACTOR TO SUBMIT SHOP
DRAWINGS PRIOR TO
INSTALLATION. ANCHOR TO
CONCRETE RISER IN 4 LOCATIONS.
(2) 4" DIAMETER ORIFICE
KNOCKOUTS
INV ELEV= 78.50
4" PLUG-\
SET TOP OF PVC PLUG AT
TEMPORARY POOL
4"x4" PVC TEE
TEMPORARY POOL = 78.50
PERMANENT POOL = 77.50
12" -
SPILLWAY
ELEV = 81.00
DRILL 2" Q OPENING
IN 4" PLUG
24"
TOP OF DAM
ELEV = 82.50
12" TYP
BOTTOM 3" CLR
ELEV = 78.50
o °
°
SAND DIAPHRAGM -REFER
TO DETAIL, THIS SHEET
REFER TO NOTES FOR
/-EMBANKMENT COMPACTION
/-- FES#300
60" DIAMETER
PRE -CAST MANHOLE
° DRAW DOWN °
ORIFICE
INV = 77.50
INV = 77.50 °
TOP OF
BERM = 82.50
CREST = 80.50
MANHOLE
STEPS, TYP
15" GASKETTED 0-RING
RCP OUTLET PIPE
a
FILL WITH LEAN CONCRETE
FROM INVERT OF OUTLET PIPE
TO MANHOLE EXTENDED BASE
BOTTOM = 75.50
STANDARD
MANHOLE BASE
4 CONCRETE RISER DETAIL
C-6.3 SCALE: N.T.S.
24"
°
°
°
a
°
a a
°
° 30'
°
a
° ° ° CREST LENGTH °
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a ° a
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a
3,000 PSI CONCRETE
NO.5 REBAR @ 12" O.C.
N0.3 STIRRUPS @ 12 O.C.
a°
3" CLR NO.3 STIRRUPS @ 12" O.C.
NO.5 REBAR @ 12" O.C.
NOTES:
1. CONCRETE DESIGN & CONSTRUCTION SHALL BE IN ACCORDANCE WITH LATEST EDITION
OF ACI SPECIFICATIONS. CONCRETE SHALL BE A MINIMUM OF 3,000 PSI WITH #3
STIRRUPS AT 12" O.C.
2. CONTRACTOR SHALL FINISH ALL CONCRETE SURFACES WITH BROOM.
3. REINFORCING SHALL BE ASTM 615, GR 60. SPLICE LENGTHS SHALL BE CLASS B.
5 EMERGENCY SPILLWAY DETAIL
J6.3SCALE: N.T.S.
KCVIJIVIVJ PROFESSIONAL'S SEAL CONSULTANT DEVELOPER REPRESENTATIVE DEVELOPER &HOME BUILDER CO/VSTRUCT/0/V DRAW/IVGS
1 11/30/2021 NCDEQ S&EC COMMENTS
2 01/27/2022 NCDEQ SW COMMENTS\\
ENG,MIKA
ZERO LOT LINE SUBDIVISION
\ ,.f J� F� T [phone] 205 S. Fuquay Avenue
p . 919 552-2043
U
N F � ) Fu ua Varina NC 27526 MANAGEMENT
q Y ,
r
McKee
EST. 10 5
iLT]1Sa LLB THE GLEN
STATUS " o�Ty Ro��� 919.917.7298 (o) 4208 Six Forks Road, Suite 810
r % h ,, , C A
FOR REVIEW ONLY , ,Ty �,,, 919.610.2583 m Raleigh, NC 27609
(.) I i r,, �:n m O
NOT FOR CONSTRUCTION I y #
ENGINEERING �IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIU
NC LIC N0 P-0799 Contact: Michael Kaney, PE 919.909.9632 (m) STORMWATER CONTROL MEASURE PLAN &SECTION
DATE: OCTOBER 22, 2021 HORZ. SCALE:1" = 30' �' � [e-mail] Contact: Blayze Di Pasquale, PE C-6.3
FILE NO. 2020-072 ORIG. SHEET SIZE: 24 x 36 [e-mail]

. ... ... .. ..... ....
AREAS OUTSIDE OF THE PERMANENT POOL SHALL BE
VEGETATED WITH NON -CLUMPING TURF GRASS - c
PERENNIAL GRASSES SUCH AS HYBRID BERMUDA OR,"
CENTIPEDE ARE RECOMMENDED. ENGINEER
RECOMMENDS SOD HOWEVER SEEDING IS ACCEPTABLE
PROVIDED THE SEED IS PROPERLY INSTALLED WITH
PROTECTIVE MEASURES TO ENSURE GERMINATION
...............
7
7
.. .......
;, 41
A
6' WIDE VEGETATED SHELF. PLANT NUMBER
Ilia,
OF PLANTS PER QUANTITIES TABLE. REFER
V
TO NOTES &APPROVED PLANTS LIST FOR
TYPE OF PLANTS TO BE USED
zf"
. . . ... ........ . .. . .......
. ...... ... ..
. .. . .......... . . ..... ..... . ...
... . .........
..... ... .. .... ...........
.. ... .. ... ...
/41
. . . . ... ... .. .. .. ... .. .. .. ... .. .. ... .. .. .. ... ..
.. . .. .. .. .. .. .. . .. .. .. ..
. ............. z
.... . . ...... .
. . . . ... . ...... ----
. ...... ...... ..
... ....... .....
WET POND - PLAN VIEW
I JA SCALE: 1 "=20'
SCALE: 1 IN = 20 FT
20' 10, 0 20' 40'
SCALE IN FEET
HORIZONTAL
PROFESSIONAL'S SEAL
i. ....... .... .. ... . . . .. .
. . . . . ..........
S k
STATUS
FOR REVIEW ONLY
NOT FOR CONSTRUCTION
DATE: OCTOBER 22, 2021 HORZ. SCALE: 1 " = 30'
FILE NO. 2020-072 ORIG. SHEET SIZE: 24 x 36
CONSULTANT
ENGINEERING r
�5�5 E N G
EST. Q 10
PTy
C A
NC LIC. NO. P-0799
T [phone]
IF [phone]
205 S. Fuquay Avenue
Fuquay-Varina, NC 27526
SCM LANDSCAPE NOTES:
1. WET POND PLANTINGS SHALL CONTAIN A MINIMUM OF 3 DIVERSE SPECIES OF
SHALLOW WATER AND SHALLOW LAND HERBACEOUS VEGETATION ON THE
VEGETATED SHELF. MINIMUM 50 PLANTS PER 200 SF OF VEGETATED SHELF AREA.
SEE TABLE THIS SHEET FOR LIST OF APPROVED PLANTS. WETLAND SEED MIX IS
NOT AN ACCEPTABLE SUBSTITUTE FOR PLANTINGS. WETLAND SEED MIX MAYBE
USED WITH IN POOL.
2. SHALLOW WATER PLANTS SHALL BE PLANTED WITHIN AREA OF VEGETATED SHELF
SUBMERGED 6 INCH IN THE PERMANENT POOL. SHALLOW LAND PLANTS SHALL BE
PLANTED WITHIN AREA OF VEGETATED SHELF UN -SUBMERGED IN THE
PERMANENT POOL.
3. PLANTS SHALL BE OF AT LEAST 4 CUBIC INCH CONTAINER SIZE.
4. SPACING OF PLANTINGS SHALL BE 24" TO 36" ON CENTERS.
5. IF TREES AND SHRUBS ARE PLANTED FOR AESTHETICS PER OWNER'S REQUEST,
THEY SHALL BE OUTSIDE OF THE POND AND SELECTED TO MAXIMIZE SHADING. NO
TREES SHALL BE PLANTED WITHIN THE EMBANKMENT OF THE POND.
6. ALL POND SLOPES AND DAMS SHALL BE SODDED WITH NON -CLUMPING, WARM
SEASON GRASS.
7. THE SOIL MIX MUST BE UNIFORM AND FREE OF STONES, STUMPS, ROOTS, OR
OTHER SIMILAR MATERIAL GREATER THAN 2 INCHES IN DIAMETER.
8. THE PH SHOULD BE BETWEEN 4.5 AND 7.0. IF THE PH FALLS OUTSIDE OF THIS
RANGE, IT MAY BE MODIFIED WITH LIME TO INCREASE THE PH OR IRON SULFATE
AND SULFUR TO LOWER THE PH. THE LIME OR IRON SULFATE MUST BE MIXED
UNIFORMLY INTO THE SOIL PRIOR TO USE.
9. TOPSOIL CAN BE NATIVE IF STOCKPILED ON -SITE SOILS OR IMPORTED TO THE SITE
FROM OTHER LOCATIONS. PROVIDE SOIL ANALYSIS FOR ALL TOPSOIL TO BE USED
WITHIN A BMP FACILITY.
PLANTING QUANTITIES
SHELFAREA SHRUBS REQUIRED
3,037 SF 759 PLANTS
*MINIMUM 50 PLANTS PER 200 SF OF VEGETATED SHELF AREA**
LEGEND:
IVEGETATED SHELF PLANTINGS I
SLOPE STABILIZATION
(TURF GRASS)
DEVELOPER REPRESENTATIVE
M I KA
MANAGEMENT
SOLUT]ONS, L.L.
919.917.7298 (o)
919.610.2583 (m)
Contact: Michael Kaney, PE
[e-mail]
A
SHALLOW WATER PLANT LIST
BOTANICAL NAME
COMMON NAME
HERBACEOUS PLANTS
ACORUS SUBCORDATUM
SWEETFLAG
ALISMA SUBCORDATUM
WATER PLANTAIN
HYDROLEA QUADRIVALVIS
WATERPOD
IRIS VIRGINICA
BLUE FLAG IRIS
JUNCUS EFFUSUS VAR. PYLAEI OR SOLUTUS
SOFT RUSH
LUDWIGIA SPP.
PRIMROSE WILLOW
PELTANDRAVIRGINICA
ARROW ARUM
PONTEDERIA CORDATA
PICKERELWEED
SAGITTARIA LATIFOLIA
DUCK POTATO
SAGITTARIA LANCIFOLIA
BULLTONGUE
SAURURUS CERNUILIS
LIZARD'S TAIL
SCHOENOPLECTUS TABERNAEMONTANI
SOFT STEM BULRUSH
SCHOENOPLECTUS AMERICANUS
THREE -SQUARE BULRUSH
SCHOENOPLECTUS PUNGENS VAR. PUNGENS
SCIRPUS CYPERINUS
WOOLGRASS
ZIZANIOPSIS MILIACEA
GIANT CUTGRASS
4208 Six Forks Road, Suite 810
Raleigh, NC 27609
919.909.9632 (m)
Contact: Blayze Di Pasquale, PE
[e-mail]
SHALLOW LAND PLANT LIST
BOTANICAL NAME
COMMON NAME
HERBACEOUS PLANTS
ASCLEPIASINCARNATA
SWAMP MILKWEED
CAREXTENERA
QUILL SEDGE
CHELONE GLABRA
WHITE TURTLEHEAD
EUPATORIADELPHUS DUBIUS
DWARF JOE PYE WEED
EUPATORIADELPHUS FISTULOSUS
JOE PYE WEED
EUPATORIADELPHUS MACULATUS
SPOTTED TRUMPETWEED
HIBISCUS COCCINEUS
SCARLET ROSE MALLOW
HIBISCUS LAEVIS
HALBERDLEAF ROSEMALLOW
KOSTELETZKYA VIRGINICA
SEASHORE MALLOW
LOBELIA CARDINALIS
CARDINAL FLOWER
LOBELIA ELONGATA
LONGLEAF LOBELIA
LOBELIA SIPHILITICA
GREAT BLUE LOBELIA
RHYNCHOSPORA COLORATA
STARRUSH WHITETOP
SACCHARUM BALDWINII
NARROW PLUMEGRASS
SHRUBS
ARON IA ARBUTI FOLIA
RED CHOKEBERRY
CEPHALANTHUS OCCIDENTALIS
COMMON BUTTONBUSH
CLETHRAALNIFOLIA
SWEET PEPPERBUSH
CORNUSAMOMUM
SILKY DOGWOOD
CYRI LLA RAC E M I FLO RA
TITI
GORDONIA LASIANTHUS
LOBLOLLY BAY
HYPERICUM DENSIFLORUM
BUSHY ST. JOHNSWORT
ILEX DECIDUAS
POSSUMHAW
ILEX GLABRA
INKBERRY
ITEAVIRGINICA
VIRGINIA SWEETSPIRE
ROSA PALUSTRIS
SWAMP ROSE
VACCINIUM CRASSIFOLIUM
CREEPING BLUEBERRY
VIBURNUM NUDUM VAR. NUDUM
POSSUMHAW
CONS TRUC TION DRA WINGS
ZERO LOT LINE SUBDIVISION
THE GLEN
SCM PLANTING PLAN
C-6.4