B
1.2m LENGTH DROP INLET
150mm
NOTE: WHEN AN INLET IS PLACED ADJACENT TO
PLAN
CONCRETE PAVEMENT, THE GUTTER DEPRESSION
SHALL BE FORMED IN CONCRETE PAVEMENT.
PIPE
SIZE
"b " BARS
250mm CTRS.
"b 1
" BARS
300mm CTRS.
1.05m OR 2.25m
"b 1
" BARS
300mm CTRS.
REINF.
STEEL
CLASS A
CONC.
REINF.
STEEL
CLASS
A
CONC.
CLASS
A
CONC.
kg
cu m
kg
cu m
kg
cu m
kg
750
1.35
70.8
0.21
10.0
0.44
17.2
0.66
32.7
600
750
1.36
70.8
0.21
10.0
750
950
1.82
93.0
0.23
11.8
900
1100
2.00
0.24
12.7
1050
1300
2.24
113.4
0.26
13.6
1200
1450
2.44
120.2
0.27
14.5
cu m
107.1
"j " BARS
400mm CTRS.
"m" BARS
DEDUCT FROM QUANTITY COMPUTED
FOR EACH EXTENSION ADDED.
1.4
NOTE: QUANTITIES ARE APPROXIMATE AND ARE SHOWN FOR
BACK OF D.I. SIDEWALK,
BIDDER INFORMATION ONLY.
CONC. ISLAND OR SLOPE
BREAK-WHICHEVER
IS GREATER
TRANSITION FOR GUTTER
DEPRESSION - DOWNSTREAM
190.63mm
CURB
EXPANSION
JOINT
A
EXTENSION
NOTCH FOR
SIDEWALK
MATCH
PAY LIMIT OF
CURB & GUTTER
IF NO EXTENSION
USED (SEE
CONFORMS TO ADJACENT CURB
NOTE #9)
TOP CURB
B
1275mm
REINF.
STEEL
mm
cu m
kg
450
0.04
0.90
0.07
1.35
750
0.10
1.80
1050
0.18
3.60
"b"1 BARS
150mm MIN.
475mm
50mm
NOTCH FOR
SIDEWALK
CONFORMS TO ADJACENT CURB
EXIST. F.L.
375mm
525mm
BACK WALL
OF D.I.
DEPRESSED GUTTER
LINE
WHEN OPENING IN BACK IS CALLED FOR ON
PLANS EXTEND OPENING AS SHOWN
IN DETAIL. PAYMENT TO BE INCLUDED
IN PRICE BID FOR DROP INLET (TYPE C).
DIAMOND TREAD
150mm
MATCH
LINE
438mm
350mm
DEPRESSED GUTTER LINE
APPROXIMATE TOTAL WEIGHT = 151 kg.
150mm
BOTTOM CURB
"c" BARS
250mm CTRS.
150mm
BOTTOM CURB
COMPACTED EARTH
BACK OPENING
TOP CURB
NORMAL GUTTER LINE
NORMAL GUTTER LINE
100mm DIA. CONCRETE
COLUMNS SPACED @
1.2m INTERVALS ALONG
INLET TO SUPPORT TOP
"d"1 BARS
"j"
PAY LIMIT OF CURB &
GUTTER (SEE NOTE #9)
DROP INLET
NOTCH FOR
SIDEWALK
"m" BARS
"g"
"e1"
600
"j " BARS 350mm CTRS.
PAY LIMIT OF CURB &
GUTTER (SEE NOTE #9)
CLASS
A
CONC.
INSIDE
DIA.
PIPE
600mm
BAR DIAGRAM
DEDUCT FROM QUANTITY
COMPUTED FOR EACH PIPE
ENTERING INLET
300mm PER 25mm DEPRESSION
"d 1
" BARS
100mm CTRS.
SLOPE AS NEEDED
TO MATCH EXIST. F.L.
VAR.
NOTCH FOR
SIDEWALK
250mm
92.19mm
R
VAR.
Y
VE
C&G
EXPANSION
JOINT
450mm
150mm
900mm PER 25mm DEPRESSION
CURB
DUT
250mm
150mm
TRANSITION FOR GUTTER
DEPRESSION - UPSTREAM
VY
G&
CO
"m" BARS
NOTCH FOR
SIDEWALK
300mm
300mm CTRS.
HEA
RIN
REINF.
STEEL
mm
0.03
"g " BARS
762mm
616mm
"a" BARS 250mm CTRS.
559mm
41mm
COVER FACE
16mm
150mm
2250mm
610mm
"c" BARS 250mm CTRS.
SIDEWALK
DROP INLET
2.4m
REINF.
STEEL
mm
"d" BARS
1
100mm CTRS.
NOTCH FOR
SIDEWALK
CLASS
A
CONC.
MIN.
WIDTH
1.2m
PLUS OR MINUS PER
m OF HEIGHT
450
"d" BARS
"b" BARS 250mm CTRS.
A
150mm
NOTCH FOR
SIDEWALK
150mm
NOTCH FOR
SIDEWALK
DROP INLET EXTENSION
HEIGHT 1.5m
150mm
1.2m MIN.
2400mm EXTENSION
100mm
NOTCH FOR
SIDEWALK
35mm
"d" BARS
250mm CTRS.
70mm
152mm
41mm
22mm
616mm
648mm
41mm
64mm
CONFORMS TO ADJACENT CURB
RING SECTION
COVER SECTION
50mm
HEAVY DUTY RING & COVER
"b" BARS 250mm CTRS.
DETAIL OF NOTCH FOR SIDEWALKS
GENERAL NOTES:
"b 1
" BARS
NOTCH FOR
SIDEWALK
300mm CTRS.
1. ALL EXPOSED CORNERS TO HAVE 19mm CHAMFER.
2. STEPS SHALL BE INSTALLED IN ALL INLETS 1.2m HIGH AND OVER
OF AS APPROVED BY THE ENGINEER.
NOTCH FOR
SIDEWALK
525mm
150
mm
MIN.
100
mm
MIN.
100mm DIA.
COLUMN
"d " BARS
"d "1BARS
100mm CTRS.
"e" BARS
DROP INLET
ELEVATION
150mm
250mm O.C.
3. ALL REINF. BARS SHALL BE #13 AND HAVE 38mm COVER.
4. DROP INLETS AND EXTENSION ON CURVED SECTIONS SHALL CONFORM
TO THE CURVATURE OF THE CURB.
5. THIS DROP INLET MAY BE CONSTRUCTED ON NEW OR EXISTING R.C. BOX
CULVERT AS SHOWN ON F.P.C.-9(M).
SECTION A-A
"d" BARS 250mm CTRS.
150mm
182.81mm
MATCH
LINE
450mm
438mm
400mm
CL
MANHOLE
450mm
183mm
PIPE THICKNESS
PLUS 150mm
38mm
NOTCH FOR
SIDEWALK
1050mm
8. DURING CONSTRUCTION OF THE ROADWAY THE CONTRACTOR SHALL
MAINTAIN DRAINAGE INTO OR AROUND THE DROP INLET AS
A
100
mm
MIN.
100mm DIA.
COLUMN
250mm
25mm
"g" BARS
300mm CTRS.
STEPS
"e" BARS
1
"a" BARS
400mm O.C.
250mm CTRS.
25mm
THIS PORTION OF INLET
250mm O.C.
750mm MIN.
150mm
150mm
WHEN CALLED FOR ON PLANS
REFER TO BACK OPENING DETAIL
NOTE: PIPES MAY ENTER BOX FROM ANY ANGLE
OR ELEVATION AS MAY BE APPROVED BY
THE ENGINEER. REINFORCING BARS SHALL
BE CUT TO CLEAR PIPE BY 38mm.
A
200mm
"c" BARS
250mm O.C.
"b" BARS
250mm
"d" BARS
50mm
250mm O.C.
25mm
25mm
PLAN
50mm
PIPE THICKNESS
FACE OF INSIDE WALL
VARIABLE
50mm
3.0m MAX
BUILT WITH EXTENSIONS.
"J" BAR
38mm
38mm
"e" BARS
1
"e" BARS
38mm
150mm
300mm
250mm O.C.
SECTION B-B
PLUS 150mm
12. 100mmx50mm NOTCH SHALL BE FORMED IN ALL DROP INLETS TO SUPPORT
SIDEWALK CONSTRUCTION. REFER TO DETAIL OF NOTCH FOR SIDEWALKS.
13. DIMENSIONS SHOWN FOR RING AND COVER ARE TYPICAL. THE CONTRACTOR
MAY SUBSTITUTE SIMILAR CASTINGS WITH THE APPROVAL OF THE ENGINEER.
REQUESTING APPROVAL FOR CASTING DESIGNS MAY BE MADE BY REFERRING
TO PREVIOUSLY APPROVED DRAWINGS.
150mm
ARKANSAS STATE HIGHWAY COMMISSION
50mm
SECTION A-A
DETAIL OF STEP FOR DROP INLET
8-22-02
ADDED PAY LIMIT CURB NOTES TO SECTIONS A-A & B-B
11-16-01
ADDED NOTE 13; REVISED SECTION B-B
1-12-00
CORRECTED DIMENSIONS & REV. RING & COVER
5-13-99
ADDED DETAIL OF NOTCH FOR SIDEWALKS
7-02-98
REPLACED RING & COVER W/HEAVY DUTY
APPROX. WEIGHT = 5kg (CAST IRON)
NOTE: THIS DETAIL IS TYPICAL. OTHERS MAY BE USED
WITH PRIOR APPROVAL OF THE ENGINEER.
DETAILS OF DROP INLETS
(TYPE C)
RING & COVER, ADDED NOTES 9,10,&11
4-3-97
"d " BARS
EXTENSIONS.
10. HEAVY DUTY RING AND COVER SHALL BE CONSTRUCTED OF CAST IRON
AND SHALL CONFORM TO THE REQUIREMENTS OF THE STANDARD
SPECIFICATIONS FOR GRAY IRON CASTINGS AASHTO M105
CLASS 35B & AASHTO M306.
11. HEAVY DUTY RING AND COVER SHALL NOT BE PAINTED.
66
mm
NOTE: LEAVE OPENING IN BACK
WALL OMITTED WHEN
"I" BARS
300mm CTRS.
9. PAYMENT FOR CURB AND/OR CURB AND GUTTER WITHIN THE LIMITS OF
DROP INLETS AND DROP INLET EXTENSIONS SHALL BE CONSIDERED
INCLUDED IN PAYMENT MADE FOR DROP INLETS AND/OR DROP INLET
VAR.
"J" BAR
300mm
APPROVED BY THE ENGINEER.
1200mm EXTENSION
"J" BARS
6. WHEN PLANS CALL FOR DROP INLET OVER 3.0m HIGH, FLOOR AND
WALLS SHALL BE CONSTRUCTED AS SHOWN FOR TYPE "RM" DROP
INLET (F.P.C.-9D(M).
7. HEAVY DUTY RING SHALL ALWAYS BE INSTALLED WITH THE FLANGE ON TOP.
REVISED STEEL BARS TO SOFT METRIC
10-18-96
CORRECTED SPELLING
4-26-96
ADDED NOTE 8, (100mm)(200mm)
7-20-95
CONVERTED TO METRIC
DATE
4-3-97
STANDARD DRAWING FPC-9E(M)
REVISION
DATE
FILMED
A
H
METRIC
D