HomeMy WebLinkAboutSD-478-121.
12" MIN.
r a
r O o r i
r Mw foul r
IIII ,. "- r r
DESIGN
SIGHT
SPEED
DISTANCE
30
200
40 T
275
50
375..
60
525
70
625
S TE_ EN TRANCE - 3' x Y x 3' PIL L AR
�M4 % 4rw +i
� I
SEE -,
AN D .
W4
G It Ali M t l/�
GRAVEL BORROW _ r IN 12"
MAXIMUM LIFTS USING A VIBRATORY
PLATE COMPACTOR, 4 PASSES A41NIMUM 1' TAPER
1► SPEC. M1.03.0 TYPE- ,
i -
M� GRAVEL FILL SPEC.
4'
'► a COMPACTED
a TAMPER
TO FINISHED GRADE
BE
Ii l's�Rj..
DRAIN/ SEWER -°~ -' EAR TM � j� 1 i j rJ?O(
PIPE
WIDTH- D t 2i_0 ,i
OR 3�-0" MIN.
,TRENCH
-FOR PVC PIPE
__- 8 23 4' -
22 UNITS
SUBSURFACE INFIL TRIG TIOil. � S 7
(NOT TO SCALE)
3" OF PEASTONE
3 ,
o
{ ,l i�IA INLET
2f --10 "
g mil. A'
Qtl iL J/ 1.J Air& a 0
timEAQ _.� r'x
3' 18" OF 1 112 " CRUSHED STONE BEDDING
E T HIGH
MASONRY RETAINING WALLS (<4 FEET HIGH
R ''I
t aais OAQ O qG ® O O 0
o Q a Qoa o® o� 0 o4o ®o o
314 ii TO 1 112'°
WASHED STONE 0.5, �
CHANNEL
RIP --RAP SPREADER ' x 20
NOT TO SCALE
' ♦
CHANNEL
IRED
R)USWED T_ �i
L-- -_DRAINAGE HOLES 4" TO 2 11E' UiA i AF EK
NO CHANGES
2' MIN.
SECTION VIEW WEIGHT
DRAINAGE
DRAINAGE NOTES. ITEM NO. DW- JDW STANDARD
1 5, 6 52LI
SEASONAL HIGH GROUNWATER
1)
48- OF 1 112" CRUSHED STONE TO BE PLACED ON
EACH DRYWELL.
1000 GALLON
ALL SIDES OF
MISC. CHANGES
2}
FILTER FABRIC TO WRAP THE ENTIRE DRAINAGE
FACILITY (DRYWELL AND CRUSHED STONE AREA).
DRY E L L-
3)
MINIMUM 2 FOOT VERTICAL SEPARATION BETWEEN BOTTOM
JUMBO ( H _ 1 Q
OF DRYWELL AND GROUNDWATER TABLE (IF ENCOUNTERED)
4)
ALL ROOF DRAIN PIPING TO BE 4" HDPE OR
N.T.S.
EQUAL WITH A MINIMUM SLOPE OF 0.01.
5)
HORIZON A AND HORIZON B LAYER SHALL
BE EXCAVATED AND REMOVED FROM THE ENTIRE' DRAINAGE FACILITY
AREA LIMITS AND REPLACED WITH CLEAN SEPTIC SAND.
6)
A 3- LAYER OF PEASTONE SHALL BE PLACED ABOVE THE DRAINAGE
STONE AND BE WRAPPED IN FILTER FABRIC.
7)
ACCESS MANHOLE SHALL BE PLACED WITHIN 12- OF FINISH GRADE.
EACH
UNIT 7 HAVE THIS DRYWELL AS SHOWN
TO CAPTURE
THE ENTIRE ROOFED AREA OF THE STRUCTURE.. THE PROP.
DRYWELL LOCATIONS ARE SHOWN ON THE
RA I /DRAI A E /TVILITY
PLAN
IN THIS SET.
E T HIGH
MASONRY RETAINING WALLS (<4 FEET HIGH
R ''I
t aais OAQ O qG ® O O 0
o Q a Qoa o® o� 0 o4o ®o o
314 ii TO 1 112'°
WASHED STONE 0.5, �
CHANNEL
RIP --RAP SPREADER ' x 20
NOT TO SCALE
' ♦
CHANNEL
IRED
R)USWED T_ �i
t
i
BAL"CED HOUSING Dii."�TLOPMEIVT
'IMERTY f
DETAM SIMET
i %. IN
MASSACHUSETTS
(MIDDLESEX CO
,SKEET 12 OF 16
C
jaw-)
e 1 �
NO CHANGES
DRAINAGE
DRAINAGE gCHANGES
MISC. CHANGES
t
i
BAL"CED HOUSING Dii."�TLOPMEIVT
'IMERTY f
DETAM SIMET
i %. IN
MASSACHUSETTS
(MIDDLESEX CO
,SKEET 12 OF 16
C
jaw-)
e 1 �