HomeMy WebLinkAboutSD-456-8PLANNING BOARD
(lwll w10
I DECLARE TO THE BEST OF MY
PROFESSIONAL KNOWLEDGE, 114FC
AND BELIEF, THAT THIS PLAN W,
IN ACCORDANCE WITH THE RULE
R�EEGGULA77ONS OF THE REGI57ER.c
t
INC.
OF DEEDS
DATE
f INFLOW
8"
FROM
o
k0.
I
I
INV =208.0
f 8" HOPE
FROM PYD1
i
i
16.0' I
50.0'
DROP INTO
OF CHAMBERS
INV. =208.0
TOP
a
I 6°
I
12" HOPE
-
9:0' (2 ROWS
MANIFOLD
- -
(
c
WIDE 8 I
PROPOSED
STORMCEPTOR
(PSTC4)
6' HDPE (7-M)
USE STO=2HAMBERS
(7 ROWS
SC -740
STORMCEPTOR FRAME
I
i
I
I
� 1
I
I
Of
0
LAID LEVEL
I
I
AND COVER
ti I
TOP OF
GRADE
a�
I
4.75'
(
i
6"
I
b�
t � � oao
(PERFORATED BELOW STONE) TYP.
ao a o• ° yr a ° (12" MIN)
A < ,
GRADE ADJUSTERS TO
�
4" OBSERVATION
SHEET 6 OF 9 FOR PIPE SIZE & TYPE.
I
I
I
4" LOAM
WELL (TIP:)
SUIT FINISHED GRADE
I
I
(INSTALLED EVERY 7
I
AND SEED
CHAMBERS MIN)
6 "0 OIL
I
+'
(-
AASHTO M288 CLASS 2
SC -740
I
a. 30 ",
I
NON- WOVEN GEOTEX77LE
BOTTOM IF COARSE SAND IS FOUND)
oo 0 0 -
SC 740 CHAMBE0 00 0 0 RS
TO ENCLOSE EN77RE
„
FACILITY (EXCEPT FOR THE
CHAMBER BOTTOM = 206.5 Iaoa o0 0 ° o ° ° 88 ° 0I 1 -2
Q, olio oa0 4?l
DEPTH VARIES
O
i- COMPACTED FILL
72 "4
BOTTOM IF COARSE SAND
_ A)r�- WASHED STONE
BED BOTTOM - �O 000 -0000° 000 °00 °O ° O °000
I
e
I
IS FOUND)
I
THE BOTTOM IF COARSE
I
72"0 + 24 "0 OUTLET
BED TOP = 208.5 }
a0 ° .p.
Q' o Q a - orlo
I SAND IS FOUND)
I
VARIES
STORMCEPTOR .
PROPOSED (TYP')
RISER
I
�o° oa
I
o
°moo °oo ° °BOO 0000,.
o
!
12" HDPE INLETS v
INSERT
18" RCP PIPE (CLASS V)
WEIR
1' MIN
E
q
0 0000
°°oo
0 0 0 000 0 0 000,0 0 0 00 0 o
poo oo
o00
a o g 0 0 0 0 ac. 0 0
0 0 o
INLET
I SC -740 CHAMBERS
I ��
h
I
1
e
I
qq qd, 0. 000
Q Q 0 ao
0o
0
c
4 00�°
Iota
OUTLE
;el
6„ OIL PORT
1 & 0'
0
o0
o 0o
0 0°°0
o °o °
of
6 "0
-
Ffw�
®�
0
h
COLLAR
CHAMBER BOTTOM = 205.0 f
10 0000
8"
FROM
o
k0.
I
I
INV =208.0
f 8" HOPE
FROM PYD1
i
i
16.0' I
8" TO ASTM C 478 SPEC FOR 'PRECAST REINFORCED
CONCRETE MANHOLE SECTIONS"
SECTION THRU 'CHAMBER 4" TO 6" REQUIRED TO BE H2O LOADING
OVERLAP
NOTES.' STANDARD CAST IRON
FINISH FRAME & GRATE TO BE SECURED DIRECTLY
1. THE USE OF FLEXIBLE CONNECTIONS 1S 6" SURFACES ONTO FLAT SLAB
RECOMMENDED AT THE INLET AND OUTLET (LEBARON FOUNDRY L.K. 123 OR LF
WHERE APPLICABLE. 6 248 -1 OR APPROVED EQUAL)
2 THE COVER SHOULD BE POSITIONED OVER THE ENLARGED INLET ° ° °
2470 OUTLET RISER PIPE AND THE 6 "0 OIL PORT. TEE DROP PIPE = °--= - -' 8" FLAT SLAB
° OFF CENTER OP170NAL
3. THE STORMCEPTOR SYSTEM IS PRO7EC7ED BY 2 0 y
ONE OR MORE OF THE FOLLOWING U.S PATENTS
#4985148, #5498331, #5725760; #5753115, N ° SQUARE OR
#5849181. ROUND OPENING
ST-0 EPTOR M 6PSTC4 & PSTC12) o A OPT70NAL
HYDRO CONDUIT ° MORTAR JOINT (TYP.)
SIC 900 Precast Concrete Stormceptor
(900 US Gallon Capacity) TRIM REINFORCEMENT FROM
(NOT TO SCALE) icy o a j ° EDGE OF CONC. (TYP.)
I ° BASE SEC77ON
° REINFORCED STEEL SHELL
STORMCEPTOR FRAME OUTLET ° CONFORM TO LATEST ASTM
AND COVER TOP OGRADE 6" a ° 9 A185 SPECS.
GRADE ADJUS7ERRS TO 3 4' 0" DIA. 5"
SUIT FINISHED GRADE
8„ 30 POR F1AT TOP 0TCH BA
i4 4 6" amt. PCB2 Em & PCBI12
72"0 7" (NOT TO SCALE)
24"0 OUTLET
VARIES STORMCEPTOR RISER
INSERT INLET WEIR OU7LE 6" 0 OIL PORT
6 "0 PROP.
ORI FICE PLATE RIGHT -OF -WAY
CE
71 "
4" OBSERVATION WELL WITH CAP
(PERFORATED BELOW STONE) TYP.
INLET TEE POROUS ASPHALT
DROP PIPE INLET BIT. CONC
8' RISE OUTLET 1' -2" WASHED DRIVEWAY APRON
RISER PIPE PLAN VIEW OF INSERT
8„ ) g" CRUSHED STONE 4P
°4n,° a° 9" MIN. (® PROW)
SECTION THRU CHAMBER 4° TO 6"
OVERLAP I! =! l I -I 11 =f 1 1= 111 =111 =1 I I- DEPTH VARIES
NOTES. COMPACTED GRAVEL
SUB -BASE
1. THE USE OF FLEXIBLE CONNECTIONS IS 6" ORIGINAL GRADE
RECOMMENDED AT THE INLET AND OU77 ET 6. COARSE SAND
WHERE APPLICABLE,
2. THE COVER SHOULD BE POSITIONED OVER THE ENLARGED INLET TYPICAL EW= 9&"AY DETAIL
24'0 OUTLET RISER PIPE AND THE 6 "0 OIL PORT TEE DROP PIPE (NOT TO SCALE)
J. THE STORMCEPTOR SYS7EM IS PR07EC7ED BY
ONE OR MORE OF THE FOLLOWING U.S PATENTS
#4985148, #5498331, #5725760, #5753115,
#5849181. NOTE: TOWN OF LEXINGTON STANDARD
�TORMCEPTOR 1200 (PSTC8) CONSTRUCTION DETAILS ARE INHERENTLY
HYDRO CONDUIT /� 7-� �+ r/� �r PLAN r/r
SIC 1200 Precast Concrete Stormceptor INCLUDED Ai.J PART OF THIS PLAN SET.
(1200 US Gallon Capacity)
(NOT TO SCALE)
FINISHED GRADE
FROM PSTC8
12" HDPE
S 001
4" OBSERVA7ION'
WELL (TYP)
(ELEV 271.0 MIN.)
LOAM AND SEED NON- W01/EN CAST IN PLACE
959 COMPACTED FILL 6W7H MORTAR AS GEOTEXTILE TO BE CONCRETE ENCASEMENT
REQUIRED WRAPPED AROUND 4,000 PSI MIN,
50.0"
PROVIDE MINIMUM 2 FEET SEPARATION BETOFEN THE BOTTOM OF THE 6 INCH
WASHED STONE LAYER AND THE SEASONAL HIGH GROUNDWATER TABLE
(TY'71 r-
1 ° 41 75' d�
I ap'f
I
I
50.0'
I
I o
CONNEC7JON
I J
(7 ROWS
I �
STORMCEPTOR FRAME
TO ENCLOSE EN77RE FACILITY (EXCEPT FOR THE
OUTLET
I
I
Of
0
LAID LEVEL
I
AND COVER
16 "_CLBI PIPE 3.0 3.0'
TOP OF
GRADE
a�
4" OBSERVATION WELL WITH CAP
I
(
I
1
I
1 8.2
I
6"
SEE DRAINAGE REACH CHART
b�
t � � oao
(PERFORATED BELOW STONE) TYP.
ao a o• ° yr a ° (12" MIN)
A < ,
GRADE ADJUSTERS TO
3
SHEET 6 OF 9 FOR PIPE SIZE & TYPE.
I
BED TOP = 210.0 n4 i 4' m Q vcO a
FINISHED GRADE
4" LOAM
SUIT FINISHED GRADE
ro°'o 00 0 0 00 0°00°o a °OO you
CHAMBER TOP = 209.0 N 0000 °oo 0
AASHTO M288 CLASS 2 NON -WOVEN GEOTEXTILE
ELEV. 209.5 MIN.
( ) USE STORM
AND SEED
6 "0 OIL
7"
+'
TO ENCLOSE ENTIRE FACILITY (EXCEPT FOR THE
SC -740
0 USE STORMTECH
O
a. 30 ",
PORT
BOTTOM IF COARSE SAND IS FOUND)
oo 0 0 -
SC 740 CHAMBE0 00 0 0 RS
„
I
CHAMBER BOTTOM = 206.5 Iaoa o0 0 ° o ° ° 88 ° 0I 1 -2
Q, olio oa0 4?l
DEPTH VARIES
w Oa9 °p
i- COMPACTED FILL
72 "4
17-
_ A)r�- WASHED STONE
BED BOTTOM - �O 000 -0000° 000 °00 °O ° O °000
ac
o o0 0 oto a
12 MIN.
o ��
I
THE BOTTOM IF COARSE
I
72"0 + 24 "0 OUTLET
BED TOP = 208.5 }
a0 ° .p.
Q' o Q a - orlo
I SAND IS FOUND)
VARIES
STORMCEPTOR .
PROPOSED (TYP')
RISER
CHAMBER TOP =2075 a
�o° oa
°o °�OO O° ��boo ° °°o°�o oOgo
0 a o
o
°moo °oo ° °BOO 0000,.
o
!
12" HDPE INLETS v
INSERT
18" RCP PIPE (CLASS V)
WEIR
6" MIN. CRUSHED STONE
E
q
0 0000
°°oo
0 0 0 000 0 0 000,0 0 0 00 0 o
poo oo
o00
a o g 0 0 0 0 ac. 0 0
0 0 o
INLET
I SC -740 CHAMBERS
I ��
a
e
00 0o
00
(00°
qq qd, 0. 000
Q Q 0 ao
0o
0
c
4 00�°
WEIR
OUTLE
6„ OIL PORT
1 & 0'
M
o0
o 0o
0 0°°0
o °o °
1 " -2"'
6 "0
-
Ffw�
®�
COLLAR
CHAMBER BOTTOM = 205.0 f
10 0000
0 0
0 0og0,
WASHED STONE
ORIFICE PLATE .'
=
6 "'0 ORIFICE
CON=T1QN
BED BOTTOM = 204:5 tp
o.
o 0 000
L 00��o
O o q O 00 o 0 o a s Oo O q o a o o° o oa o 00 0.
0 00 0 000 oao 000 0 0o q0 q ppq OD000 a0aOpq a000 a4 aa0aOaOOa00 q a0 aa0
-off -00 ooh �°..o��o�o `oow.o_o oa _o ayooToo q_�oo�0000.A 0°x•60 a
0.5" -� 4.75' O. C.
PROVIDE 36 STORM7ECH SC -740 CHAMBERS
55"
-
(NOT TO SCALE)
SEE DRAINAGE REACH CHART
SPECIFICATIONS:
PROPOSED
PROVIDE MINIMUM 2 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6 INCH
(T�')�
INLET TEE
DROP PIPE
TO POMHI i
SHEET 6 OF 9 FOR PIPE
INLET
CONCRETE STRENGTH
HOPE INLETS
T1.0,
PROVIDE 56 STORM7ECH SC -740 CHAMBERS = 2
REVISIONS
SIZE & TYPE.
4000 P.S.I. AT 28 DAYS
(NOT TO SCALE)
Ld
SmRYWATER INFI/ 7RA77DI1t
FACLL/TY
24 "0 OUTLET
HEN 170WWA7ER 1NRVRA770N FACIU7Y (em12 -=um VIEW
REINFORCING STEEL CONFORMS TO ASTM A185
AL7ERNA7E UNITS YWTH
STAFF BOARD, & BWT
2$:0'
N
(NOT TO SCALE)
RISER PIPE
.
PLAN
MEW OF INSERT
MANHOLE DESIGN SPECIFICATIONS SHALL CONFORM
INLETS AND OUTLETS
MIN. F
7 ROWS OF 8 UNITS
I 0
8" TO ASTM C 478 SPEC FOR 'PRECAST REINFORCED
CONCRETE MANHOLE SECTIONS"
SECTION THRU 'CHAMBER 4" TO 6" REQUIRED TO BE H2O LOADING
OVERLAP
NOTES.' STANDARD CAST IRON
FINISH FRAME & GRATE TO BE SECURED DIRECTLY
1. THE USE OF FLEXIBLE CONNECTIONS 1S 6" SURFACES ONTO FLAT SLAB
RECOMMENDED AT THE INLET AND OUTLET (LEBARON FOUNDRY L.K. 123 OR LF
WHERE APPLICABLE. 6 248 -1 OR APPROVED EQUAL)
2 THE COVER SHOULD BE POSITIONED OVER THE ENLARGED INLET ° ° °
2470 OUTLET RISER PIPE AND THE 6 "0 OIL PORT. TEE DROP PIPE = °--= - -' 8" FLAT SLAB
° OFF CENTER OP170NAL
3. THE STORMCEPTOR SYSTEM IS PRO7EC7ED BY 2 0 y
ONE OR MORE OF THE FOLLOWING U.S PATENTS
#4985148, #5498331, #5725760; #5753115, N ° SQUARE OR
#5849181. ROUND OPENING
ST-0 EPTOR M 6PSTC4 & PSTC12) o A OPT70NAL
HYDRO CONDUIT ° MORTAR JOINT (TYP.)
SIC 900 Precast Concrete Stormceptor
(900 US Gallon Capacity) TRIM REINFORCEMENT FROM
(NOT TO SCALE) icy o a j ° EDGE OF CONC. (TYP.)
I ° BASE SEC77ON
° REINFORCED STEEL SHELL
STORMCEPTOR FRAME OUTLET ° CONFORM TO LATEST ASTM
AND COVER TOP OGRADE 6" a ° 9 A185 SPECS.
GRADE ADJUS7ERRS TO 3 4' 0" DIA. 5"
SUIT FINISHED GRADE
8„ 30 POR F1AT TOP 0TCH BA
i4 4 6" amt. PCB2 Em & PCBI12
72"0 7" (NOT TO SCALE)
24"0 OUTLET
VARIES STORMCEPTOR RISER
INSERT INLET WEIR OU7LE 6" 0 OIL PORT
6 "0 PROP.
ORI FICE PLATE RIGHT -OF -WAY
CE
71 "
4" OBSERVATION WELL WITH CAP
(PERFORATED BELOW STONE) TYP.
INLET TEE POROUS ASPHALT
DROP PIPE INLET BIT. CONC
8' RISE OUTLET 1' -2" WASHED DRIVEWAY APRON
RISER PIPE PLAN VIEW OF INSERT
8„ ) g" CRUSHED STONE 4P
°4n,° a° 9" MIN. (® PROW)
SECTION THRU CHAMBER 4° TO 6"
OVERLAP I! =! l I -I 11 =f 1 1= 111 =111 =1 I I- DEPTH VARIES
NOTES. COMPACTED GRAVEL
SUB -BASE
1. THE USE OF FLEXIBLE CONNECTIONS IS 6" ORIGINAL GRADE
RECOMMENDED AT THE INLET AND OU77 ET 6. COARSE SAND
WHERE APPLICABLE,
2. THE COVER SHOULD BE POSITIONED OVER THE ENLARGED INLET TYPICAL EW= 9&"AY DETAIL
24'0 OUTLET RISER PIPE AND THE 6 "0 OIL PORT TEE DROP PIPE (NOT TO SCALE)
J. THE STORMCEPTOR SYS7EM IS PR07EC7ED BY
ONE OR MORE OF THE FOLLOWING U.S PATENTS
#4985148, #5498331, #5725760, #5753115,
#5849181. NOTE: TOWN OF LEXINGTON STANDARD
�TORMCEPTOR 1200 (PSTC8) CONSTRUCTION DETAILS ARE INHERENTLY
HYDRO CONDUIT /� 7-� �+ r/� �r PLAN r/r
SIC 1200 Precast Concrete Stormceptor INCLUDED Ai.J PART OF THIS PLAN SET.
(1200 US Gallon Capacity)
(NOT TO SCALE)
FINISHED GRADE
FROM PSTC8
12" HDPE
S 001
4" OBSERVA7ION'
WELL (TYP)
(ELEV 271.0 MIN.)
LOAM AND SEED NON- W01/EN CAST IN PLACE
959 COMPACTED FILL 6W7H MORTAR AS GEOTEXTILE TO BE CONCRETE ENCASEMENT
REQUIRED WRAPPED AROUND 4,000 PSI MIN,
50.0"
PROVIDE MINIMUM 2 FEET SEPARATION BETOFEN THE BOTTOM OF THE 6 INCH
WASHED STONE LAYER AND THE SEASONAL HIGH GROUNDWATER TABLE
(TY'71 r-
1 ° 41 75' d�
I ap'f
I
I
50.0'
I
I o
CONNEC7JON
I J
(7 ROWS
I �
I j
TO ENCLOSE EN77RE FACILITY (EXCEPT FOR THE
I
I
Of
0
LAID LEVEL
I
i
16 "_CLBI PIPE 3.0 3.0'
a�
I
(
I
1
I
1 8.2
I
6"
i
b�
t � � oao
cLio �o
ao a o• ° yr a ° (12" MIN)
A < ,
P
50.0'
I
AASHTO M288 CLASS 2 NON -WOVEN GEOTEXTlLE FILL
CONNEC7JON
328'
(7 ROWS
iWDE)
I
TO ENCLOSE EN77RE FACILITY (EXCEPT FOR THE
Of
MANIFOLD
LAID LEVEL
BOTTOM IF COARSE SAND IS FOUND) DEPTH VARIES
16 "_CLBI PIPE 3.0 3.0'
o� oco
6" HOPE
6"
i
I
ao a o• ° yr a ° (12" MIN)
A < ,
(TYP.)
o
I
BED TOP = 210.0 n4 i 4' m Q vcO a
I
ro°'o 00 0 0 00 0°00°o a °OO you
CHAMBER TOP = 209.0 N 0000 °oo 0
<
o 000 0o g0000l
o0 0 0 0 00 a o 0 0 8 08 0
a°
+'
0 USE STORMTECH
O
AASHTO M288 CLASS 2
I NON -WOVEN
oo 0 0 -
SC 740 CHAMBE0 00 0 0 RS
j GEOTEX77LE TO
I
CHAMBER BOTTOM = 206.5 Iaoa o0 0 ° o ° ° 88 ° 0I 1 -2
-- ENCLOSE EN77RE
I
_ A)r�- WASHED STONE
BED BOTTOM - �O 000 -0000° 000 °00 °O ° O °000
I
THE BOTTOM IF COARSE
I
6'i ti5:
1' WIDE
I SAND IS FOUND)
PROPOSED (TYP')
PROPOSED
!
12" HDPE INLETS v
Aj
18" RCP PIPE (CLASS V)
6"
6" MIN. CRUSHED STONE
E
q
S
9
7 " -2" INV= 208.Of 1.0' 9.0' 1.0' N 4i
I SC -740 CHAMBERS
I ��
a
e
WASHED STONE IN MIN.
MATCH
6" MIN. CRUSHED STONE
BEDDING TO SUPPORT
CONCRETE COLLAR
L°-
1 & 0'
INVERTS
BEDDING TO SUPPORT
SECCONCRETE
-
Ffw�
®�
COLLAR
6" PERFORATED
H 12
P/Pf
CON=T1QN
COLLAHDPE
(TYP.)
OUT =208.7
PROVIDE 36 STORM7ECH SC -740 CHAMBERS
0
-
(NOT TO SCALE)
18" D.I.
PROVIDE MINIMUM 2 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6 INCH
I 1- -2"
- WASHED STONE
TO POMHI i
WASHED STONE LAYER AND THE SEASONAL HIGH GROUNDWATER TABLE
REVISIONS
(NOT TO SCALE)
COMMENTS FROM PLANNING !
SmRYWATER INFI/ 7RA77DI1t
FACLL/TY
a=)--PLAN
HEN 170WWA7ER 1NRVRA770N FACIU7Y (em12 -=um VIEW
1
3111110
STAFF BOARD, & BWT
(NOT
TO SCALE)
(NOT TO SCALE)
CONSERVATION COMMISSION
DWG. No,
5017DEF -DET NO.
DATE
DESCRIPTION BY
UWE
�/6�T" HOPE". o 2 3,!& omv .0
12 HOPE MANIFOLD (LAID LEVEL)
TO SCALE)
PDMH13
OUTLET
MANHOLE
3x6" HDPE - INV =207.25
TO PFE2
91-93 HANCOCK STREET
DEFINITIVE SUBDIVISION
(IN ACCORDANCE WITH SECTION 175 -3
so -4 � -45�
50.0'
328'
(7 ROWS
iWDE)
Of
MANIFOLD
LAID LEVEL
INV.=
206.0
6" HOPE
Ooo Anro °p
1
(TYP.)
o
ao a a
I
a°
I
g0
AASHTO M288 CLASS 2
I NON -WOVEN
j GEOTEX77LE TO
-- ENCLOSE EN77RE
FACILITY (EXCEPT FOR
THE BOTTOM IF COARSE
1' WIDE
I SAND IS FOUND)
MIN.
I USE STORMTECH
I SC -740 CHAMBERS
I ��
��
J
. y
n z
.0 4r
I
I
I
I
1
I
f
0
%J
I 1- -2"
- WASHED STONE
�/6�T" HOPE". o 2 3,!& omv .0
12 HOPE MANIFOLD (LAID LEVEL)
TO SCALE)
PDMH13
OUTLET
MANHOLE
3x6" HDPE - INV =207.25
TO PFE2
91-93 HANCOCK STREET
DEFINITIVE SUBDIVISION
(IN ACCORDANCE WITH SECTION 175 -3
so -4 � -45�