Concrete Pipe Sizes
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ROUND PIPES:
| Pipe Size (in.) |
Arch Equiv. |
Metric Equivalent (mm) |
Area (ft²) |
Weight (lbs/ft) |
Wall Thickness (in.) |
| 15 |
18x11 |
375 |
1.2 |
140 |
2¼ |
| 18 |
22x13 |
450 |
1.8 |
180 |
2½ |
| 24 |
29x18 |
600 |
3.1 |
286 |
3 |
| 30 |
36x23 |
750 |
4.9 |
402 |
3½ |
| 36 |
44x27 |
900 |
7.1 |
654 |
4¾ |
| 42 |
51x31 |
1,050 |
9.6 |
810 |
5¼ |
| 48 |
58x36 |
1,200 |
12.6 |
1,010 |
5¾ |
| 54 |
65x40 |
1,350 |
15.9 |
1,208 |
6¼ |
| 60 |
73x45 |
1,500 |
19.6 |
1,475 |
6¾ |
| 72 |
88x54 |
1,800 |
28.3 |
1,810 |
7 |
ARCH PIPES:
| Pipe Size (in.) |
Round Equiv. |
Metric Equivalent (mm) |
Area (ft²) |
Weight (lbs/ft) |
Wall Thickness (in.) |
| 18x11 |
15 |
460x280 |
1.1 |
188 |
3 |
| 22x13 |
18 |
560x245 |
1.6 |
233 |
3 1/8 |
| 29x18 |
24 |
725x460 |
2.9 |
325 |
3½ |
| 36x23 |
30 |
920x570 |
4.4 |
392 |
3½ |
| 44x27 |
36 |
1110x675 |
6.5 |
537 |
4 |
| 51x31 |
42 |
1300x795 |
8.7 |
696 |
4½ |
| 58x36 |
48 |
1485x915 |
11.4 |
885 |
5 |
| 65x40 |
54 |
1650x1015 |
14.3 |
1,079 |
5½ |
| 73x45 |
60 |
1855x1145 |
17.7 |
1,333 |
6 |
| 88x54 |
72 |
2235x1370 |
25.6 |
1,856 |
7 |
End Section Data
| ROUND PIPES |
| Pipe Size (in.) |
Arch Equiv. |
Metric Equivalent (mm) |
Weight (lbs/sec) |
A |
B |
C |
D |
L |
Wall Thickness |
| 15 |
18x11 |
375 |
1,000 |
6" |
27" |
46" |
32" |
73" |
2.250" |
| 18 |
22x13 |
450 |
1,180 |
9" |
27" |
46" |
36" |
73" |
2.500" |
| 24 |
29x18 |
600 |
1,666 |
10" |
44" |
30" |
48" |
74" |
3.000" |
| 30 |
36x23 |
750 |
1,960 |
12" |
54" |
20" |
60" |
74" |
3.500" |
| 36 |
44x27 |
900 |
4,430 |
15" |
63" |
35" |
72" |
98" |
4.750" |
| 42 |
51x31 |
1,050 |
5,630 |
21" |
63" |
35" |
78" |
98" |
5.250" |
| 48 |
58x36 |
1,200 |
6,870 |
24" |
72" |
26" |
84" |
98" |
5.750" |
| 54 |
65x40 |
1,350 |
8,320 |
28" |
78" |
22" |
90" |
100" |
6.250" |
| 60 |
73x45 |
1,500 |
10,660 |
40" |
78" |
22" |
96" |
100" |
6.750" |
| 72 |
88x54 |
1,800 |
14,820 |
46" |
78" |
22" |
102" |
100" |
7.000" |
| ARCH PIPES |
| Pipe Size (in.) |
Round Equiv. |
Metric Equivalent (mm) |
Weight (lbs/sec) |
A |
B |
C |
D |
L |
Wall Thickness |
| 22x13 |
18 |
560x245 |
1,050 |
7" |
27" |
45" |
36" |
72" |
3.125" |
| 29x18 |
24 |
725x460 |
1,580 |
8" |
39" |
33" |
48" |
72" |
3.500" |
| 36x23 |
30 |
920x570 |
2,250 |
10" |
48" |
24" |
60" |
72" |
3.500" |
| 44x27 |
36 |
1110x675 |
3,900 |
10" |
60" |
36" |
72" |
96" |
4.000" |
| 51x31 |
42 |
1300x795 |
5,420 |
15" |
60" |
36" |
78" |
96" |
4.500" |
| 58x36 |
48 |
1485x915 |
6,540 |
21" |
60" |
36" |
84" |
96" |
5.000" |
| 65x40 |
54 |
1650x1015 |
7,640 |
25" |
60" |
36" |
90" |
96" |
5.500" |
| 73x45 |
60 |
1855x1145 |
9,510 |
26" |
75" |
21" |
96" |
96" |
6.000" |
| 88x54 |
72 |
2235x1370 |
14,840 |
35" |
78" |
22" |
120" |
100" |
7.000" |
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