20150609 Ver 1_Stormwater Site Plans_20150619 (2)

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30' LONG x 10' WIDE VEGETATED FILTER St
FILTER STRIP AREA SHALL BE CLEARED AND
SODDED. GRADE SO THAT SLOPE DOES NOT \.
EXCEED 5 %. ANY NECESSARY GRADING SHALL
BE CUT — NO FILLING ALLOWED. SEE
'�EGETATED FILTER STRIP PLANTING
\ SPECIFICATIONS ", THIS SHEET.
/
20' PRIVATE / / /
\ \ STORM EASEMENT /
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REFER TO SHEET C7.4, FOR--_
RIP RAP -APRON SIZING
VARIABLE 1WIDTH BMP
MAINTENANCE EASEMENT\
LIMIT OF GRADING \
FOR BMP IN ZONE 3
0
\ I �Us \
LA I � \
LA LA FES 200 `
\ \ \ INV. 315.00REFER T0\ \
\ \ SHEET C5.2 FOR RIP REAP \
APRON SIZING,,
\ \ \ o \ \ \ 20' PUBLIC DRAINAGE AND \ \
\ \ \ \ BMP ACCESS EASEMENT
Z \
GRAPHIC SCALE
20 0 10 20 40 , BMP #2 - WET POND 111=201
N / � �
1 inch = 20 ft.
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HALLOW WATER (NORMAL POOL TO 6" BELOW) =
= 2,150 SF 50 HERB. PLANTS/ 200 SF =
= 540 PLANTS
TEMPORARY POOL RISER TOP
DURING STORM
TEMPORARY SKIMMER TOP OF DAM
ti
6 PEAK FLOW ATTENUATION POOL RISER
FOREBAY-7 \ NORMAL POOL 10 :1
10' WIDE VEGETATED SHELF TO
PERMANENT N _ 10" EXTEND TO A DEPTH OF 6" ABOVE
= I I POOL DEPTH VEGETATED ND BELOW THE PERMANENT POOL
T SHELF D
SEDIMENT STORAGE EL i lI
1' ABOVE POND BOTTOM
ANTI — FLOATATION DEVICE
6" DIP
FOREBAY
DRAIN
LE
F
ANTI —SEEP COLLAR
III_ :11 Ed I I,
—'
BMP #2 CROSS SECTION RCP O—RING OUTLET PIP D CLASS 111
NTS.
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EARTH DAM
STRUCTURE
BMP #2
DIMENSIONS ELEV.
NORMAL POOL 11,232 SF 315.00
POND BOTTOM 309.00
PERMANENT POOL VOLUME 34,500 CF
TOP OF BERM 8 FEET WIDE 320.00
100 —YEAR WATER SURFACE 319.15
DRAWDOWN ORIFICE 2" PVC 315.00
PEAK ATTENUATION WEIR 2 — 3'W x 3 "H 316.75 I BLIND WIDE
CREST 4' ID x 4' ID 317.00 I SWALE
OUTLET PIPE INVERT @ RISEP 145 LF 24" RCP 309.00
OUTLET PIPE INVERT @ FES @ 3.4% 305.00
ANTI — FLOTATION 8' x 8' x 2.5' I UNDERDR,
VEGETATED FILTER STRIP
PLANTING SPECIFICATIONS
THE VEGETATED FILTER STRIP SHALL BE CLEARED, AND COVERED WITH A MINIMUM
OF 6" OF TOPSOIL. MIX 1 -2 CUBIC YARDS OF PEAT MOSS OR COMPOST PER
1,000 SF INTO THE TOPSOIL. IN ADDITION, A ONE -TIME START -UP FERTILIZATION
SHOULD BE ADDED, PER THE TABLE BELOW:
GRASS OTHER THAN CENTIPEDE:
- 75 LBS OF GROUND LIMESTONE PER 1,000 SF
- A STARTER TYPE FERTILIZER, HIGH IN PHOSPORUS, BASED ON THE TYPE OF
GRASS AND PLANTING METHOD.
CENTIPEDE:
- 1/2 LB OF NITROGEN PER 1,000 SF
GRASS TYPE:
-GRASS TYPE SHALL BE TALL FESCUE OR COMMON BERMUDA. GRASS SHALL BE
SOD, GROWN IN NON- CLAYEY SOIL.
-WATER SOD FREQUENTLY FOR THE FIRST THREE WEEKS AFTER INSTALLATION, SO
THAT THE FIRST 1.5" OF SOIL IS KEPT MOIST.
EL. 318.75
EL. 317.00 1 15" VOID SPACq
PEAK ATTENUATION WEIR
2- 3'X3" EL. 316.75
Z
4
L LEVEL SPREADER LIP
TO 30' VEGETATED
FILTER STRIP
1 3'- 0 1 1
FLOW PATH \ \
LEVEL SPREADER LIP 3 INCHES OF SURGE STONE
— III —I � I —I I —I � I —= — —_ —_— — \
I �_�� I I —� I_I I_I I —III_ RECEIVING
6' WIDE BLIND SWALE — I I —I I— III — I STREAM
—ii— iii —i i
4" PERFFORATED PVC
UNDERDRAIN — DRAIN
INTO BYPASS SWALE °
3 FEET WIDE STRIP OF FILTER FABRIC
CONCRETE FOOTER
(SIZED BY OTHERS)
6" PRECAST CONCRETE
TOP SLAB W /GRATE
I I
LEVEL SPREADER DETAIL
NTS
5' -4"
4'
� I
LO —
GRATE OFFSET
OVER STEPS
24" RCP
6" DO BOTTOM DRAIN
EL. 309.00 EL. 309.25 BMP #2 RISER TOP DETAIL
WEST WALL NORTH & SOUTH WALS FAST WAS
NTS
BMP #2 RISER WALL ELEVATIONS #4 REBAR
NTS 12" O.C. 1/2" PREFORMED
EACH WAY JOINT FILLER,
12" WIDE
GRATED COVER ACCESS
HAND WHEEL I +
TOP OF RISER 6" SLAB TOP 141
STAINLESS STEEL STEM
RISER CREST � � SUPPORTS AT 3' O.C.
PRECAST REINFORCED I '
BOX 6" THICK SIDEWALL 2000 PSF MIN.
(MIN) 4.5' 8„ BEARING CAPACITY
- BENEATH COLLAR
6" DIP TO LEVEL �—I— MANHOLE STEPS ELEVATION SECTION
SPREADER (SEE NCOOT 840.66)
NORMAL POOL / I II 114"x 2" STEEL STRAP
'O —RING' JOINT W/ 2 — 314" ANCHOR
BOLTS 2 STRAPS REO'D
J
GROUT EACH SIDE
ORIFICE HOLE DRILLED A
IN 6" DIP CAP �
JOINT SEALED WITH A —LOK NEOPRENE
GASKET (OR APPROVED EQUAL)
6" DIP CAST IN MANHOLE WALL
POND BOTTOM � � CLASS 11 10 —RING RCP
INV. OUT
-SEEP COLLAR
\�j \x\�j PAVED�INVERT
"GROUT NTS
/\ / /\/ ° '• ° U TOP OF ANTI — FLOATATION
\A CAR
• °
° ° p6509QOOR°° °o
4" NRS GATE VALVE
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(SET (SET IN GROUT) � °° P R ' 0 0
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ARY
BMP #2 RISER DETAIL ° °
NOT APPRIDAD o MII� 03004STRUCTI
ON
NTS P�"00NOTES . % 4 ° ° ° °
°°
1. RISER BARREL, SKIMMER AND OUTLET PIPE SHALL BE INSTALLED AT PRIOR TO THE °00000000000000
BEGINNING OF OVERALL SITE GRADING AND SHALL BE UTILIZED AS A SEDIMENT CONTROL
DEV I CE DU RI NG ROADWAY A ND UTILITY CONS TR UC TI ON. ONCE TH E SITE HA S BEEN STABILIZED THE SIGNATURES AFFIXED BELOW CERTIFY THAT THIS SHEET HAS BEEN REVIEWED AND APPROVED SOLELY
AND GRADING IS COMPLETED THE BASIN SHALL BE CLEANED OUT AND STABILIZED. THE PER THE CERTIFICATIONS SIGNED ON THE COVER SHEET OF THESE CONSTRUCTION PLANS.
SKIMMER DEVICE SHALL BE REMOVED, THE BOTTOM DRAIN CLOSED AND THE NORMAL POOL
ESTABLISHED.
CM - ENGINEERING DATE PUBLIC WORKS - ENV. PROGRAMS DATE
2. DAM EMBANKMENT AND ALL SLOPES SHALL BE STABILIZED PER EROSION CONTROL SEEDING
SCHEDULE OR SOD. CM — TRANSPORTATION DATE PLANNING DATE
3. ALL CONSTRUCTION TO BE IN ACCORDANCE WITH ALL TOWN OF APEX STANDARDS. ALL CM - BUILDING INSPECTIONS DATE PLANNING - TRANSPORTATION DATE
APPLICABLE LOCAL AND STATE ENVIRONMENTAL PERMITS SHALL BE OBTAINED PRIOR TO
START OF CONSTRUCTION.
PUBLIC WORKS - WATER /SEWER DATE FIRE DATE
4. STORMWATER MANAGEMENT FACILITIES SHALL BE DESIGNED PER THE TOWN OF APEX
STANDARDS AND REGULATIONS FOR STORMWATER QUANTITY AND QUALITY (UDO SECTION PUBLIC WORKS — ELECTRIC DATE PARKS, RECREATION & CULTURAL RES DATE
6.1). POST DEVELOPMENT RATES FOR THE 1 —YEAR AND 10 —YEAR, 24 —HOUR STORMS.
PUBLIC WORKS - S & E DATE
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VEGETATED FILTER STRIP
PLANTING SPECIFICATIONS
THE VEGETATED FILTER STRIP SHALL BE CLEARED, AND COVERED WITH A MINIMUM
OF 6" OF TOPSOIL. MIX 1 -2 CUBIC YARDS OF PEAT MOSS OR COMPOST PER
1,000 SF INTO THE TOPSOIL. IN ADDITION, A ONE -TIME START -UP FERTILIZATION
SHOULD BE ADDED, PER THE TABLE BELOW:
GRASS OTHER THAN CENTIPEDE:
- 75 LBS OF GROUND LIMESTONE PER 1,000 SF
- A STARTER TYPE FERTILIZER, HIGH IN PHOSPORUS, BASED ON THE TYPE OF
GRASS AND PLANTING METHOD.
CENTIPEDE:
- 1/2 LB OF NITROGEN PER 1,000 SF
GRASS TYPE:
-GRASS TYPE SHALL BE TALL FESCUE OR COMMON BERMUDA. GRASS SHALL BE
SOD, GROWN IN NON- CLAYEY SOIL.
-WATER SOD FREQUENTLY FOR THE FIRST THREE WEEKS AFTER INSTALLATION, SO
THAT THE FIRST 1.5" OF SOIL IS KEPT MOIST.
EL. 318.75
EL. 317.00 1 15" VOID SPACq
PEAK ATTENUATION WEIR
2- 3'X3" EL. 316.75
Z
4
L LEVEL SPREADER LIP
TO 30' VEGETATED
FILTER STRIP
1 3'- 0 1 1
FLOW PATH \ \
LEVEL SPREADER LIP 3 INCHES OF SURGE STONE
— III —I � I —I I —I � I —= — —_ —_— — \
I �_�� I I —� I_I I_I I —III_ RECEIVING
6' WIDE BLIND SWALE — I I —I I— III — I STREAM
—ii— iii —i i
4" PERFFORATED PVC
UNDERDRAIN — DRAIN
INTO BYPASS SWALE °
3 FEET WIDE STRIP OF FILTER FABRIC
CONCRETE FOOTER
(SIZED BY OTHERS)
6" PRECAST CONCRETE
TOP SLAB W /GRATE
I I
LEVEL SPREADER DETAIL
NTS
5' -4"
4'
� I
LO —
GRATE OFFSET
OVER STEPS
24" RCP
6" DO BOTTOM DRAIN
EL. 309.00 EL. 309.25 BMP #2 RISER TOP DETAIL
WEST WALL NORTH & SOUTH WALS FAST WAS
NTS
BMP #2 RISER WALL ELEVATIONS #4 REBAR
NTS 12" O.C. 1/2" PREFORMED
EACH WAY JOINT FILLER,
12" WIDE
GRATED COVER ACCESS
HAND WHEEL I +
TOP OF RISER 6" SLAB TOP 141
STAINLESS STEEL STEM
RISER CREST � � SUPPORTS AT 3' O.C.
PRECAST REINFORCED I '
BOX 6" THICK SIDEWALL 2000 PSF MIN.
(MIN) 4.5' 8„ BEARING CAPACITY
- BENEATH COLLAR
6" DIP TO LEVEL �—I— MANHOLE STEPS ELEVATION SECTION
SPREADER (SEE NCOOT 840.66)
NORMAL POOL / I II 114"x 2" STEEL STRAP
'O —RING' JOINT W/ 2 — 314" ANCHOR
BOLTS 2 STRAPS REO'D
J
GROUT EACH SIDE
ORIFICE HOLE DRILLED A
IN 6" DIP CAP �
JOINT SEALED WITH A —LOK NEOPRENE
GASKET (OR APPROVED EQUAL)
6" DIP CAST IN MANHOLE WALL
POND BOTTOM � � CLASS 11 10 —RING RCP
INV. OUT
-SEEP COLLAR
\�j \x\�j PAVED�INVERT
"GROUT NTS
/\ / /\/ ° '• ° U TOP OF ANTI — FLOATATION
\A CAR
• °
° ° p6509QOOR°° °o
4" NRS GATE VALVE
oo°o� � /°9
O
OoOSS
y
101
(SET (SET IN GROUT) � °° P R ' 0 0
`U � °y
ARY
BMP #2 RISER DETAIL ° °
NOT APPRIDAD o MII� 03004STRUCTI
ON
NTS P�"00NOTES . % 4 ° ° ° °
°°
1. RISER BARREL, SKIMMER AND OUTLET PIPE SHALL BE INSTALLED AT PRIOR TO THE °00000000000000
BEGINNING OF OVERALL SITE GRADING AND SHALL BE UTILIZED AS A SEDIMENT CONTROL
DEV I CE DU RI NG ROADWAY A ND UTILITY CONS TR UC TI ON. ONCE TH E SITE HA S BEEN STABILIZED THE SIGNATURES AFFIXED BELOW CERTIFY THAT THIS SHEET HAS BEEN REVIEWED AND APPROVED SOLELY
AND GRADING IS COMPLETED THE BASIN SHALL BE CLEANED OUT AND STABILIZED. THE PER THE CERTIFICATIONS SIGNED ON THE COVER SHEET OF THESE CONSTRUCTION PLANS.
SKIMMER DEVICE SHALL BE REMOVED, THE BOTTOM DRAIN CLOSED AND THE NORMAL POOL
ESTABLISHED.
CM - ENGINEERING DATE PUBLIC WORKS - ENV. PROGRAMS DATE
2. DAM EMBANKMENT AND ALL SLOPES SHALL BE STABILIZED PER EROSION CONTROL SEEDING
SCHEDULE OR SOD. CM — TRANSPORTATION DATE PLANNING DATE
3. ALL CONSTRUCTION TO BE IN ACCORDANCE WITH ALL TOWN OF APEX STANDARDS. ALL CM - BUILDING INSPECTIONS DATE PLANNING - TRANSPORTATION DATE
APPLICABLE LOCAL AND STATE ENVIRONMENTAL PERMITS SHALL BE OBTAINED PRIOR TO
START OF CONSTRUCTION.
PUBLIC WORKS - WATER /SEWER DATE FIRE DATE
4. STORMWATER MANAGEMENT FACILITIES SHALL BE DESIGNED PER THE TOWN OF APEX
STANDARDS AND REGULATIONS FOR STORMWATER QUANTITY AND QUALITY (UDO SECTION PUBLIC WORKS — ELECTRIC DATE PARKS, RECREATION & CULTURAL RES DATE
6.1). POST DEVELOPMENT RATES FOR THE 1 —YEAR AND 10 —YEAR, 24 —HOUR STORMS.
PUBLIC WORKS - S & E DATE
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