Corrugated steel pipe and structural plate pipe offer designers a wide choice of standard cross-sectional arch shapes. Planned size and site conditions often impact the shape selected, with strength and economy as additional factors. See the tables below for sizes and layout details.
| Sizes and layout details – CSP Pipe Arches (2 2/3 x 1/2 in. corrugation) |
Equiv.
Diameter |
Design |
Waterway
Area |
Layout Dimensions |
|
Span |
Rise |
B |
Rc |
Rt |
Rb |
| (in.) |
(in.) |
(in.) |
(ft2) |
(in.) |
(in.) |
(in.) |
(in.) |
15
18
21
24
30
36
42
48
54
60
66
72 |
17
21
24
28
35
42
49
57
64
71
77
83 |
13
15
18
20
24
29
33
38
43
47
52
57 |
1.1
1.6
2.2
2.9
4.5
6.5
8.9
11.6
14.7
18.1
21.9
26.0 |
4 1/8
4 7/8
5 5/8
6 1/2
8 1/8
9 3/4
11 3/8
13
14 5/8
16 1/4
17 7/8
19 1/2 |
3 1/2
4 1/8
4 7/8
5 1/2
6 7/8
8 1/4
9 5/8
11
12 3/8
13 3/4
15 1/8
16 1/2 |
8 5/8
10 3/4
11 7/8
14
17 7/8
21 1/2
25 1/8
28 5/8
32 1/4
35 3/4
39 3/8
43 |
25 5/8
33 3\1/8
34 5/8
42 1/4
55 1/8
66 1/8
77 1/4
88 1/4
99 1/4
110 1/4
121 1/4
132 1/4 |
Notes: Layout dimensions are typical manufactured dimensions. Specified dimensions are found in ASTM A760.
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| Sizes and layout details – CSP Pipe Arches (3 x 1 or 5 x 1 in. corrugation) |
Equiv.
Diameter |
Nominal Size |
Design |
Waterway
Area |
Layout Dimensions |
|
Span |
Rise |
B |
Rc |
Rt |
Rb |
| (in.) |
(in.) |
(in.) |
(in.) |
(ft2) |
(in.) |
(in.) |
(in.) |
(in.) |
48
54
60
66
72
78
84
90
96
102
108
114
120
126
132
138
144 |
53 x 41
60 x 46
66 x 51
73 x 55
81 x 59
87 x 63
95 x 67
103 x 71
112 x 75
117 x 79
128 x 83
137 x 87
142 x 91
150 x 96
157 x 101
164 x 105
171 x 110 |
53
58 1/2
65
72 1/2
79
86 1/2
93 1/2
101 1/2
108 1/2
116 1/2
123 1/2
131
138 1/2
146
153
159
165 |
41
48 1/2
54
58 1/4
62 1/2
67 1/4
71 3/4
76
80 1/2
84 3/4
89 1/4
93 3/4
98
102
107
113
118 1/2 |
11.7
15.6
19.3
23.2
27.4
32.1
37.0
42.4
48.0
54.2
60.5
67.4
74.5
81
89
98
107 |
15 1/4
20 1/2
22 3/4
25 1/8
23 3/4
25 3/4
27 3/4
29 3/4
31 5/8
33 5/8
35 5/8
37 5/8
39 1/2
41
43
45
47 |
10 3/16
18 3/4
20 3/4
22 7/8
20 7/8
22 5/8
24 3/8
26 1/8
27 3/4
29 1/2
31 1/4
33
34 3/4
36
38
40
41 |
28 1/16
29 3/8
32 5/8
36 3/4
39 1/2
43 3/8
47
51 1/4
54 7/8
59 3/8
63 1/4
67 3/8
71 5/8
76
80
82
85 |
73 7/16
51 1/8
56 1/4
63 3/4
82 5/8
92 1/4
100 1/4
111 5/8
120 1/4
131 3/4
139 3/4
149 1/2
162 3/8
172
180
184
190 |
Notes: Layout dimensions are typical manufactured dimensions. Specified dimensions are found in ASTM A760.
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| Sizes and layout details, spiral rib pipe arch and composite ribbed steel pipe arch |
Equiv.
Diameter |
Design |
Waterway
Area |
Layout Dimensions |
|
Span |
Rise |
B |
Rc |
Rt |
Rb |
| (in.) |
(in.) |
(in.) |
(ft2) |
(in.) |
(in.) |
(in.) |
(in.) |
18
21
24
30
36
42
48
54
60
66
72
78
84
90
96
102 |
20
23
27
33
40
46
53
60
66
73
81
87
95
103
112
117 |
16
19
21
26
31
36
41
46
51
55
59
63
67
71
75
79 |
1.7
2.3
3.0
4.7
6.7
9.2
12.1
15.6
19.3
23.2
27.4
32.1
37.0
42.4
48.0
54.2 |
5 1/8
5 7/8
6 3/4
8 3/4
10 3/8
12 3/8
14
20 1/2
22 3/4
25 1/8
23 3/4
25 3/4
27 3/4
29 3/4
31 5/8
33 5/8 |
5
5 3/8
5 3/4
7 1/8
8 3/8
9 3/4
11 1/8
18 3/4
20 3/4
22 7/8
20 7/8
22 5/8
24 3/8
26 1/8
27 3/4
29 1/2 |
10 1/4
11 5/8
13 1/2
16 5/8
20 1/4
23 1/4
26 5/8
29 3/8
32 5/8
36 3/4
39 1/2
43 3/8
47
51 1/4
54 7/8
59 3/8 |
27 1/2
34 1/4
40 7/8
51 3/8
62 1/2
73
83 1/2
51 1/8
56 1/4
63 3/4
82 5/8
92 1/4
100 1/4
111 5/8
120 1/4
131 3/4 |
Notes: Layout dimensions are typical manufactured dimensions. Specified dimensions are found in ASTM A760.
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