HomeMy WebLinkAboutSD-420-C8,■■sf 1 i
LEXINGTON PLANNING BOARD
DATE:
I HEREBY CERTIFY THAT NO NOTICE OF APPEAL
WAS RECEIVED DURING THE TWENTY DAYS NEXT
AFTER RECEIPT AND RECORDING OF THE NOTICE
OF APROVAL OF THIS PLAN FROM THE LEXINGTON
PLANNING BOARD.
NOTES:
1. GRAVEL
BASE SHALL HAVE 8 IN. OF SUITABLE
GRAVEL,
AND
4 IN. OF
CRUSHER RUN GRAVEL COMAPACTED
IN 4 IN.
LIFTS TO
95% OF
MAX. STANDARD PROCTOR DENSITY.
2. THE WEARING SURFACE SHALL BE CLASS I BITUMINOUS
CONCRETE
TYPE 1 -1
STREET
PAVEMENT AND CAPE
COD
BERM
SCALE: NONE
CATCH BASIN FRAME AND GRATE
LEBAR'ON LK123, LF248 -1 OR
APPROVED EQUAL
CAPE COD BERM —
PRECAST CONCRETE
CATCH BASIN
MORTAR ALL JOINTS OR PROVIDE
PREFORMED MASTIC SEALER
6 IN. GRAVEL BASE
t
126'Feb. 2004 Comments
�t3 3J,1
SQUARE
OPENING
48 ".
5" MIN,
SCALE: NONE
NOTES:
1. FOLLOW GEOSYNTHETIC GRID MANUFACTURER'S
INSTALLATION INSTRUCTIONS AND SPECIFICATIONS
GEOSYNTHETIC INSTALLATION DETAIL_
SCALE: NONE
Z■ ■ •
DRAINAGE AGGREGATE
OPEN JOINT AT
40 FT. O.C.
DRAIN DETAIL_ - WALLS OVER 4 FT
SCALE: NONE
DRAINAGE AGGREGATE
.. ,.
OPEN JOINT 2"
AT 20 FT. 0. C,
DRAIN DETAIL - WALLS UNDER 4 ET
SCALE: NONE
ADJUST TO GRADE WITH
MIN. 2 COURSES OF BRICK
SET IN FULL BED OF MORTAR
- PAVEMENT
12 IN. PVC
DRAIN PIPE
CAST IRON TRAP
LEBARON OR EQUAL
DRAIN PIPE
A
9"
I
3" #5 @12 in.
CONCRETE #5, 5 PCs.
f'c 4,000 psi PAVEMENT
AIR ENTRAINED
CHAMFER EDGES
GRAVEL BASE
4' —0"
TOP OF WALL UNDER PAVEMENT
SCALE: NONE
CAP UNIT
ADHERE TO TOP UNIT WITH
CONCRETE ADHESIVE
3/4" SETBACK
MODULAR CONCRETE - -�'
FACING UNITS I
I
FILL, 12" DEEP
DRAINAGE AGGREGATE
12 IN. THICK MIN.
r _ —
_ —
_ BOND BREAKER
d�c —
NOTES:
1. LIMIT CHANGES IN TOP BLOCK ELEVATION TO 6 PER STEP
FINISHED GRADE SLOPING TOP WITH CONCRETE BARRIER
SCALE: NONE
GEOSYNTHETIC REINFORCEMENT
AT 2 FT VERTICAL SPACING
UNDER ROAD AND IN WALLS
5 FT OR HIGHER
APPROX.
EXCAVATION LINE
REINFORCED BACKFILL
COMPACTED TO MIN. 95% OF MAX.
STANDARD PROCTOR DENSITY
4 IN. DRAIN PIPE IN WALLS OVER 4 FT HIGH;
OUTLET AT END OF WALL OR 40 FT O.C.
IMPERVIOUS FILL
GRANULAR LEVELING PAD
6 IN. THICK MIN.
NOTES:
1. FOLLOW MANUFACTURER'S INSTALLATION
INSTRUCTIONS AND SPECIFICATIONS
TYPICAL, SECTION - REINFORCED RETAINING WALL
SCALE: NONE
BACKFILL COMPACTED TO MIN. 95%
OF MAX. STANDARD PROCTOR DENSITY
TOPSOIL,
/— 6 IN. THICK MIN.
I
P®
l 0 .01 1 0 0 GI 1 01 1 0
AASHTO M288 CLASS 2
NON —WOVEN GEOTEXTILE,
OVERLAP 12 IN. MIN.
INFILTRATION CHAMBERS -
STORMTECH SC -740 OR - -. 51"
APPROVED EQUAL
END CAP
UNDISTURBED SOIL NOTES:
1. FOLLOW MANUFACTURER'S INSTALLATION
INSTRUCTIONS AND SPECIFICATIONS
STORMWATER INFILTRATION CHAMBERS
SCALE: NONE
O
2" MI
Nz
Q0.
O
M
M
SM OF A_. S�£
R/ ASKC P
WDROViC
ST!'... — 's,RAI
31ftA _
's /LI (aY
FINISHED GRADE
RANDOMLY STAGGER
VERTICAL JOINTS
4
W fzYG uµ. � F ".. ✓�f m"'v!/.LN/b d ,v�a �(
GRANULAR LEVELING
PAD 6 IN. THICK
BURY ONE ADDITIONAL
FULL UNIT MIN.
UNDISTURBED SOIL
NOTES:
1. LIMIT CHANGES IN BASE ELEVATION TO 6" PER STEP
2. STEP OFTEN ENOUGH TO MAINTAIN MINIMUM REQUIRED EMBEDMENT
STEPPING BASTE DETAIL
SCALE: NONE
DRAWING:
Details
ERS: Mlijana BOVan DRAWN BY: DATE:
Rasko Ojdrovic Rasko Ojdrovic P.E.. 15 Oct. 2003