STRUCTURAL DETAILS OF
SLAB CULVERTS
(SPAN UP TO 6.00M)
References ::
(1) IRC:SP:13-2004
GUIDELINES FOR THE DESIGN OF SMALL BRIDGES AND CULVERTS
(First Revision) ::
Table 1.1 + Clauses.1.3.1 &13.5.6 + PLATE-5, 8, 9
(2) POCKET BOOK FOR HIGHWAY ENGINEERS (Second
revision) :: Chapter 8
Compiled by :-
V. VENKATA NARAYANA
DEPUTY EXECUTIVE ENGINEER
ROADS & BUILDINGS DEPT.
vvn.randb@gmail.com
GUIDE LINES, SUGGESSITIONS and DESIGN of SLAB CULVERTS
GUIDE LINES and SUGGESSITIONS :1) Number of spans should be 1, 3, 5, 7, 8, 9,10 etc.. (Clause 12.4.3 of IRC:SP:13-2004)
In case for Number of spans 2,4 and 6 the Middle pier will be located right in the center of stream and
always obstructs the stream flow. Also hard foundation may not be available at shallow depths.
2) IN case of Widening the existing culverts GROUPING can done as shown in parenthesis with CLEAR SPAN.
2Vx1.00m (1Vx2.60m), 3Vx1.00m (1Vx4.20m), 4Vx1.00m(2Vx2.60m) and 6Vx1.00m (2Vx4.20m)
2Vx2.00m (1Vx4.60m), 4Vx2.00m (2Vx4.60m), 6Vx2.00m(3Vx4.60m) .
3) In case of New Culverts H should be 1.50m and above.(Clause 12.5 of IRC:SP:13-2004):
For Widening the existing culverts H may be 1.00m (Hence the values are stroked like 1.00).
4) For Clear Spans 1.00m and 2.00m:
The design values are as per POCKET BOOK FOR HIGHWAY ENGINEERS (Second revision) :Chapter 8
5) For Effective spans 3.00m, 3.50m, 4.00m, 4.50m, 5.00m, 5.50m and 6.00m :
The design values are as perIRC:SP:13-2004
GUIDELINES FOR THE DESIGN OF SMALL BRIDGES
AND CULVERTS (First Revision):Table 1.1, Clauses.1.3.1 PLATE-5, 8, 9.
6) If the design span does not exactly match with the available type design :
The details of the next higher span length be used (Clause 1.3.1 of IRC:SP:13-2004).
7) Pier/Abutment cap (Bed block):
300 mm depth with VRCC M20 or VRCC M25 grade concrete (Clause 13.5.6 of IRC:SP:13-2004).
8) Minimum Bearing Capacity of the soil should be 16.50 t/m2
For the abutment and wing wall section up to 4.00m height. (Clause 14.1of IRC:SP:13-2004)
9) MATERIALS :(Chapter 13 of IRC:SP:13-2004)
Leveling Course : M15 grade with 40 mm size Course Aggregate.
Foundation : M15 grade with 40 mm size Course Aggregate.
Substructure : M15 grade with 40 mm size Course Aggregate.
Pier/Abutment cap (Bed block) : VRCC M20 or VRCC M25 grade with 20 mm size Course Aggregate.
Bearings: Tar paper bearing.
Deck Slab : VRCC M20 or VRCC M25 grade with 20 mm size Course Aggregate.
DESIGN:1) Span Length and Number of Spans :
(i)For Widening the existing culverts, Span can be ascertained by GROUPING as per S.No.(2) above
(ii)For New culvers, Span can ascertained as per Site condition or as per Design.
Design Span Length be adjusted as per S.No.(6) above
2) Deck Slab Depth (D1 & D2 or D):
For the Designed Span, Deck Slab depth is selected from Table : STRUCTURAL DETAILS OF
SLAB CULVERTS
3) Pier/Abutment cap (Bed block) Depth:
For Spans less than 3.00m, Camber is provided in Bed block as shown in the drawing
For Spans 3.00m and above 300 mm uniform thick is used.
4) Wearing coat Thickness :
75 mm (0.750m) in case of CC Wearing Course.
56 mm (0.056m) in case Bituminous Wearing Course.
5 H Value :
Obtain the Height of Road Top from the LOWEST BED LEVEL from the site, say it is " h ".
H = h - (Deck Slab Depth D1 or D + Wearing Coat Thickness) + 0.80 m.
H values is fixed to nearest higher value of 1.0. 1.50,2.0,2.50,3.0, 3.50 or 4.00m
6 STRUCTURAL DETAILS OF SLAB CULVERTS :
From the Span Length and H-value, all other Structural vales can be obtained from the TABLE.
Detailed Drawings may be referred for Deck slabs Steel Details during Execution
CULVET DESIGN
VV Narayana
GENERAL ARRANGEMENT DRAWING
H>2.0
WEARING COAT
OVERALL SPAN
ROAD TOP
DECK SLAB
APPROACH SLAB
APPROACH SLAB
BED BLOCK
CLEAR PAN
WHEEP HOLES
Ground Level
h
H
0.8m
Ground Level
LOWEST BED LEVEL
FOUNDATION
LEVELLING OURSE
B4
CULVERT
ELEVATION
B4
VV Narayana
H>2.0
ABUTMENT AND RETURN WALL SECTIONS
0.5
0.5/0.3
H
b3
LOWEST BED LEVEL
GROUND LEVEL
b2
0.3
b2
0.40
b3 b1
0.40 0.2 0.2
B1
0.80
0.80
b4
0.40
1.20
b4
0.2 0.2
+ WEARING COAT
H+ SLAB THICKNESS
ALL MEASUREMENTS ARE IN METERS
0.3
0.5
b1
0.40
B1
0.2
0.4
0.2
0.40
0.20
0.40
0.20
B2
SECTION OF ABUTMENT
B2
RETURN WALL SECTION
VVN
CULVERT
VV Narayana
GENERAL ARRANGEMENT DRAWING
H>2.0
WEARING COAT
OVERALL SPAN
ROAD TOP
DECK SLAB
APPROACH SLAB
APPROACH SLAB
BED BLOCK
CLEAR PAN
WHEEP HOLES
Ground Level
h
H
0.8m
Ground Level
LOWEST BED LEVEL
FOUNDATION
LEVELLING OURSE
B4
ELEVATION
B4
12.0
PLAN
3.5
CULVERT
VV Narayana
GENERAL ARRANGEMENT DRAWING
(H<=2.0, b4=0)
WEARING COAT
OVERALL SPAN
ROAD TOP
DECK SLAB
APPROACH SLAB
APPROACH SLAB
BED BLOCK
CLEAR PAN
Ground Level
H
WHEEP HOLES
Ground Level
h
LOWEST BED LEVEL
0.8m
FOUNDATION
LEVELLING OURSE
B4
CULERT
ELEVATION
B4
VV Narayana
(H<=2.0, b4=0)
ABUTMENT AND RETURN WALL SECTIONS
ALL MEASUREMENTS ARE IN METERS
0.5
0.5/0.3
H
b3
LOWEST BED LEVEL
GROUND LEVEL
0.80
0.80
0.3
0.40
b3 b1
B1
b2
0.40 0.2 0.2
0.40
1.20
b2
0.2 0.2
+ WEARING COAT
H+ SLAB THICKNESS
0.3
0.5
b1
0.40
B1
0.2
0.4
0.2
0.40
0.20
0.40
0.20
B2
SECTION OF ABUTMENT
B2
RETURN WALL SECTION
VVN
CULVERT
VV Narayana
GENERAL ARRANGEMENT DRAWING
(H<=2.0, b4=0)
WEARING COAT
OVERALL SPAN
ROAD TOP
DECK SLAB
APPROACH SLAB
APPROACH SLAB
BED BLOCK
CLEAR PAN
Ground Level
WHEEP HOLES
Ground Level
h
H
LOWEST BED LEVEL
0.8m
FOUNDATION
LEVELLING OURSE
B4
ELEVATION
B4
12.0
PLAN
3.5
CULVERT
VV Narayana
BED BLOCK (PEAR CAP) and DECK SLAB SECTIONS
ALL MEASUREMENTS ARE IN METERS
CAMBER IN DECK SLAB WITH VARYING DEPTHS (D1 to D2)
UNIFORM THICKNESS in DECK SLAB
0.15
D2
D
12. 00 m
CULVERT
D
D1
D
0.3
0.15
12. 00 m
UNIFORM THICKNESS IN BED BLOCK
CAMBER IN BED BLOCK WITH VARYING DEPTHS (0.15 m -0.30 m )
As per IRC:SP:13-2004
As per POCKET BOOK FOR HIGHWAY ENGINEERS
VV Narayana
STRUCTURAL DETAILS OF SLAB CULVERTS (SPAN up to 6.00m)
COMPILED BY : V. VENKATA NARAYANA D.E.E. (R&B),
vvn.randb@gmail.com
References :: 1) IRC:SP:13-2004 GUIDELINES FOR THE DESIGN OF SMALL BRIDGES AND CULVERTS (First Revision) :: Table 1.1 + Clauses.1.3.1 &13.5.6 + PLATE-5, 8, 9
2) POCKET BOOK FOR HIGHWAY ENGINEERS (Second revision) :: Chapter 8
Substructure
Width @ bottom (m)
Foundation
Width @ bottom (m)
Stream side
Tapering (m)
Approach side
Tapering (m)
Substructure
Width @ bottom (m)
Foundation
Width @ bottom (m)
H
b1
b2
b3
b4
B1
B2
b1
b2
B1
B2
D1 D2
Without Foot
Paths (cum)
With Foot
Paths (cum)
Without Foot
Paths (kg)
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
At End (mm)
REMARKS/
REFERENCE
At Center (mm)
At End (mm)
Foundation
Offset (m)
QUANTITY of DEPTH of
STEEL
BEDBLOCK
Bed block
Breadth (m)
Overall Span (m)
4
QUANTITY of
CONCRETE
Approach side
Tapering (m)
Clear Span (m)
3
DEPTH of
SLAB
BEDBLOC
K
Stream side
Tapering (m)
Effective Span (m)
2
DECK SLAB
Height of
Sub-structure (m)
S.no.
1
RETURN WALL
With Foot
Paths (kg)
ABUTMENT
HEIGHT
At Center (mm)
SPAN
21
22
23
24
1
1.30 1.00 1.60
1.00
0.20
0.70
0.30
--
1.50
2.70
0.23
0.57
1.30
2.10
170
170
3.26
372
300
2
1.30 1.00 1.60
1.50
0.20
0.70
0.30
--
1.50
2.70
0.23
0.57
1.30
2.10
170
170
3.26
372
300
3
1.30 1.00 1.60
2.00
0.20
0.70
0.30
--
1.50
2.70
0.23
0.57
1.30
2.10
170
170
3.26
372
300
4
1.30 1.00 1.60
2.50
0.25
0.90
0.30
0.10
1.75
3.15
0.23
0.57
1.30
2.10
170
170
3.26
372
300
150 POCKET BOOK
FOR HIGHWAY
150
ENGINEERS
150 (Second revision)
150
5
1.30 1.00 1.60
3.00
0.30
1.10
0.30
0.20
2.00
3.60
0.23
0.57
1.30
2.10
170
170
3.26
372
300
150
6
1.30 1.00 1.60
3.50
0.35
1.25
0.30
0.35
2.20
4.10
0.23
0.57
1.30
2.10
170
170
3.26
372
300
150
7
1.30 1.00 1.60
4.00
0.40
1.40
0.30
0.50
2.40
4.60
0.23
0.57
1.30
2.10
170
170
3.26
372
300
150
8
1.80 1.50 2.10
1.00
0.20
0.70
0.30
--
1.50
2.70
0.23
0.57
1.30
2.10
200
200
5.04
610
300
9
1.80 1.50 2.10
1.50
0.20
0.70
0.30
--
1.50
2.70
0.23
0.57
1.30
2.10
200
200
5.04
610
300
10
1.80 1.50 2.10
2.00
0.20
0.70
0.30
--
1.50
2.70
0.23
0.57
1.30
2.10
200
200
5.04
610
300
11
1.80 1.50 2.10
2.50
0.25
0.90
0.30
0.10
1.75
3.15
0.23
0.57
1.30
2.10
200
200
5.04
610
300
150 POCKET BOOK
FOR HIGHWAY
150
ENGINEERS
150 (Second revision)
150
12
1.80 1.50 2.10
3.00
0.30
1.10
0.30
0.20
2.00
3.60
0.23
0.57
1.30
2.10
200
200
5.04
610
300
150
13
1.80 1.50 2.10
3.50
0.35
1.25
0.30
0.35
2.20
4.10
0.23
0.57
1.30
2.10
200
200
5.04
610
300
150
14
1.80 1.50 2.10
4.00
0.40
1.40
0.30
0.50
2.40
4.60
0.23
0.57
1.30
2.10
200
200
5.04
610
300
150
SLAB CULVERTS
Page 1 of 3
VVNarayana
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
2.30
2.30
2.30
2.30
2.30
2.30
2.30
3.00
3.00
3.00
3.00
3.00
3.00
3.00
3.50
3.50
3.50
3.50
3.50
3.50
3.50
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.50
4.50
2.00
2.00
2.00
2.00
2.00
2.00
2.00
2.60
2.60
2.60
2.60
2.60
2.60
2.60
3.10
3.10
3.10
3.10
3.10
3.10
3.10
3.60
3.60
3.60
3.60
3.60
3.60
3.60
4.10
4.10
2.60
2.60
2.60
2.60
2.60
2.60
2.60
3.40
3.40
3.40
3.40
3.40
3.40
3.40
3.90
3.90
3.90
3.90
3.90
3.90
3.90
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.90
4.90
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1.00
1.50
0.20
0.20
0.20
0.25
0.30
0.35
0.40
0.15
0.15
0.20
0.25
0.30
0.35
0.40
0.15
0.15
0.20
0.25
0.30
0.35
0.40
0.15
0.15
0.20
0.25
0.30
0.35
0.40
0.20
0.20
0.70
0.70
0.70
0.90
1.10
1.25
1.40
0.50
0.50
0.70
0.95
1.10
1.25
1.40
0.50
0.50
0.70
0.95
1.10
1.25
1.40
0.50
0.50
0.70
0.95
1.10
1.25
1.40
0.65
0.65
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.50
0.50
0.50
0.50
0.50
0.50
0.50
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
---0.10
0.20
0.35
0.50
0.10
0.20
0.30
0.50
0.10
0.20
0.30
0.50
0.10
0.20
0.30
0.50
-
1.50
1.50
1.50
1.75
2.00
2.20
2.40
1.45
1.45
1.70
2.00
2.20
2.40
2.60
1.95
1.95
2.20
2.50
2.70
2.90
3.10
1.95
1.95
2.20
2.50
2.70
2.90
3.10
2.15
2.15
2.70
2.70
2.70
3.15
3.60
4.10
4.60
2.65
2.65
2.90
3.40
3.80
4.20
4.80
3.15
3.15
3.40
3.90
4.30
4.70
5.30
3.15
3.15
3.40
3.90
4.30
4.70
5.30
3.35
3.35
0.24
0.24
0.24
0.24
0.24
0.24
0.24
0.59
0.59
0.59
0.59
0.59
0.59
0.59
1.33
1.33
1.33
1.33
1.33
1.33
1.33
2.13
2.13
2.13
2.13
2.13
2.13
2.13
240
240
240
240
240
240
240
450
450
450
450
450
450
450
500
500
500
500
500
500
500
500
500
500
500
500
500
500
550
550
240
240
240
240
240
240
240
300
300
300
300
300
300
300
350
350
350
350
350
350
350
350
350
350
350
350
350
350
400
400
7.49
7.49
7.49
7.49
7.49
7.49
7.49
16.42
16.42
16.42
16.42
16.42
16.42
16.42
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
23.89
32.57
32.57
SLAB CULVERTS
0.19
0.24
0.29
0.34
0.39
0.44
0.19
0.19
0.24
0.29
0.34
0.39
0.44
0.19
0.19
0.24
0.29
0.34
0.39
0.44
0.25
0.25
0.46
0.59
0.71
0.84
0.96
1.09
0.48
0.48
0.60
0.73
0.85
0.98
1.10
0.48
0.48
0.60
0.73
0.85
0.98
1.10
0.62
0.62
1.15
1.33
1.50
1.68
1.85
2.03
1.17
1.17
1.34
1.52
1.69
1.87
2.04
1.17
1.17
1.34
1.52
1.69
1.87
2.04
1.37
1.37
Page 2 of 3
1.95
2.13
2.30
2.48
2.65
2.83
1.97
1.97
2.14
2.32
2.49
2.67
2.84
1.97
1.97
2.14
2.32
2.49
2.67
2.84
2.17
2.17
19
20
20.44
20.44
20.44
20.44
20.44
20.44
20.44
29.09
29.09
29.09
29.09
29.09
29.09
29.09
29.09
29.09
29.09
29.09
29.09
29.09
29.09
38.95
38.95
764
764
764
764
764
764
764
835
835
835
835
835
835
835
1296
1296
1296
1296
1296
1296
1296
1296
1296
1296
1296
1296
1296
1296
2061
2061
21
22
23
917
917
917
917
917
917
917
1391
1391
1391
1391
1391
1391
1391
1391
1391
1391
1391
1391
1391
1391
2170
2170
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
150
150
150
150
150
150
150
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
24
POCKET BOOK
FOR HIGHWAY
ENGINEERS
(Second revision)
IRC:SP:13-2004
GUIDELINES FOR THE
DESIGN OF SMALL
BRIDGES AND
CULVERTS (First
Revision)
IRC:SP:13-2004
GUIDELINES FOR THE
DESIGN OF SMALL
BRIDGES AND
CULVERTS (First
Revision)
IRC:SP:13-2004
GUIDELINES FOR THE
DESIGN OF SMALL
BRIDGES AND
CULVERTS (First
Revision)
IRC:SP:13-2004
VVNarayana
1
2
3
4
5
6
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
4.50
4.50
4.50
4.50
4.50
5.00
5.00
5.00
5.00
5.00
5.00
5.00
5.50
5.50
5.50
5.50
5.50
5.50
5.50
6.00
6.00
6.00
6.00
6.00
6.00
6.00
7.00
8.00
9.00
10.0
4.10
4.10
4.10
4.10
4.10
4.60
4.60
4.60
4.60
4.60
4.60
4.60
5.10
5.10
5.10
5.10
5.10
5.10
5.10
5.60
5.60
5.60
5.60
5.60
5.60
5.60
6.60
7.60
8.60
9.60
4.90
4.90
4.90
4.90
4.90
5.40
5.40
5.40
5.40
5.40
5.40
5.40
5.90
5.90
5.90
5.90
5.90
5.90
5.90
6.40
6.40
6.40
6.40
6.40
6.40
6.40
7.40
8.40
9.40
10.4
2.00
2.50
3.00
3.50
4.00
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1.00
1.50
2.00
2.50
3.00
3.50
4.00
0.20
0.25
0.30
0.35
0.40
0.20
0.20
0.20
0.25
0.30
0.35
0.40
0.20
0.20
0.20
0.25
0.30
0.35
0.40
0.20
0.20
0.20
0.25
0.30
0.35
0.40
SLAB CULVERTS
7
8
9
10
11
12
0.65 1.00
2.15 3.35
0.25
0.90 1.00 0.10 2.45 3.85
0.30
1.05 1.00 0.20 2.65 4.25
0.35
1.25 1.00 0.35 2.90 4.80
0.40
1.40 1.00 0.50 3.10 5.30
0.45
0.60 1.00
2.10 3.30
0.25
0.60 1.00
2.10 3.30
0.25
0.60 1.00
2.10 3.30
0.25
0.85 1.00 0.10 2.40 3.80
0.30
1.00 1.00 0.20 2.60 4.20
0.35
1.20 1.00 0.40 2.85 4.85
0.40
1.40 1.00 0.50 3.10 5.30
0.45
0.60 1.00
2.10 3.30
0.25
0.60 1.00
2.10 3.30
0.25
0.60 1.00
2.10 3.30
0.25
0.85 1.00 0.10 2.40 3.80
0.30
1.00 1.00 0.20 2.60 4.20
0.35
1.20 1.00 0.40 2.85 4.85
0.40
1.40 1.00 0.50 3.10 5.30
0.45
0.60 1.00
2.10 3.30
0.25
0.60 1.00
2.10 3.30
0.25
0.60 1.00
2.10 3.30
0.25
0.85 1.00 0.10 2.40 3.80
0.30
1.00 1.00 0.20 2.60 4.20
0.35
1.20 1.00 0.40 2.85 4.85
0.40
1.40 1.00 0.50 3.10 5.30
0.45
DESIGN DETAILS TO BE WORKED OUT
DESIGN DETAILS TO BE WORKED OUT
DESIGN DETAILS TO BE WORKED OUT
DESIGN DETAILS TO BE WORKED OUT
13
14
15
16
17
18
19
20
21
22
23
0.62
0.75
0.87
1.00
1.13
0.62
0.62
0.62
0.75
0.87
1.00
1.13
0.63
0.63
0.63
0.75
0.88
1.00
1.13
0.63
0.63
0.63
0.75
0.88
1.00
1.13
1.37
1.55
1.72
1.90
2.08
1.37
1.37
1.37
1.55
1.72
1.90
2.08
1.38
1.38
1.38
1.55
1.73
1.90
2.08
1.38
1.38
1.38
1.55
1.73
1.90
2.08
2.17
2.35
2.52
2.70
2.88
2.17
2.17
2.17
2.35
2.52
2.70
2.88
2.18
2.18
2.18
2.35
2.53
2.70
2.88
2.18
2.18
2.18
2.35
2.53
2.70
2.88
550
550
550
550
550
550
550
550
550
550
550
550
600
600
600
600
600
600
600
600
600
600
600
600
600
600
650
750
820
900
400
400
400
400
400
400
400
400
400
400
400
400
450
450
450
450
450
450
450
450
450
450
450
450
450
450
500
600
670
750
32.57
32.57
32.57
32.57
32.57
32.57
32.57
32.57
32.57
32.57
32.57
32.57
42.43
42.43
42.43
42.43
42.43
42.43
42.43
42.43
42.43
42.43
42.43
42.43
42.43
42.43
53.51
70.81
87.14
106.4
38.95
38.95
38.95
38.95
38.95
38.95
38.95
38.95
38.95
38.95
38.95
38.95
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
62.25
80.74
98.26
118.7
2061
2061
2061
2061
2061
2061
2061
2061
2061
2061
2061
2061
2825
2825
2825
2825
2825
2825
2825
2825
2825
2825
2825
2825
2825
2825
3657
4727
6076
7047
2170
2170
2170
2170
2170
2170
2170
2170
2170
2170
2170
2170
2955
2955
2955
2955
2955
2955
2955
2955
2955
2955
2955
2955
2955
2955
3794
4823
6166
7124
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
Page 3 of 3
24
POCKET BOOK
IRC:SP:13-2004
IRC:SP:13-2004
GUIDELINES FOR THE
DESIGN OF SMALL
BRIDGES AND
CULVERTS (First
Revision)
IRC:SP:13-2004
GUIDELINES FOR THE
DESIGN OF SMALL
BRIDGES AND
CULVERTS (First
Revision)
IRC:SP:13-2004
GUIDELINES FOR THE
DESIGN OF SMALL
BRIDGES AND
CULVERTS (First
Revision)
IRC:SP:13-2004
VVNarayana
GENERAL ARRANGEMENT DRAWING
H>2.0
WEARING COAT
ROAD TOP
DECK SLAB
APPROACH SLAB
APPROACH SLAB
BED BLOCK
WHEEP HOLES
Ground Level
Ground Level
0.8m
LOWEST BED LEVEL
FOUNDATION
LEVELLING OURSE
ELEVATION
CULVERT
VV Narayana
GENERAL ARRANGEMENT DRAWING
(H<=2.0, b4=0)
WEARING COAT
ROAD TOP
DECK SLAB
APPROACH SLAB
APPROACH SLAB
BED BLOCK
WHEEP HOLES
Ground Level
Ground Level
LOWEST BED LEVEL
0.8m
FOUNDATION
LEVELLING OURSE
ELEVATION
CULVERT
VV Narayana
H>2.0
ABUTMENT AND RETURN WALL SECTIONS
0.5
0.5/0.3
LOWEST BED LEVEL
+ WEARING COAT
H+ SLAB THICKNESS
ALL MEASUREMENTS ARE IN METERS
0.3
GROUND LEVEL
0.80
0.80
0.5
0.40 0.2 0.2
0.40
1.20
0.2 0.2
0.40
0.40
0.3
0.2
0.4
0.2
0.40
0.20
0.40
0.20
SECTION OF ABUTMENT
RETURN WALL SECTION
VVN
CULVERT
VV Narayana
(H<=2.0, b4=0)
ABUTMENT AND RETURN WALL SECTIONS
ALL MEASUREMENTS ARE IN METERS
0.5
0.5/0.3
LOWEST BED LEVEL
GROUND LEVEL
0.80
0.80
0.5
0.40
0.40 0.2 0.2
0.40
1.20
0.40
0.3
0.2 0.2
+ WEARING COAT
H+ SLAB THICKNESS
0.3
0.2
0.4
0.2
0.40
0.20
0.40
0.20
SECTION OF ABUTMENT
RETURN WALL SECTION
VVN
CULVERT
VV Narayana
BED BLOCK (PEAR CAP) and DECK SLAB SECTIONS
ALL MEASUREMENTS ARE IN METERS
CAMBER IN DECK SLAB WITH VARYING DEPTHS (D1 to D2)
UNIFORM THICKNESS in DECK SLAB
0.15
0.3
12. 00 m
CULVERT
0.15
12. 00 m
UNIFORM THICKNESS IN BED BLOCK
CAMBER IN BED BLOCK WITH VARYING DEPTHS (0.15 m -0.30 m )
As per IRC:SP:13-2004
As per POCKET BOOK FOR HIGHWAY ENGINEERS
VV Narayana