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Tables
111
112 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 1
Tables 113
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 2
114 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 3
Tables 115
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 4
Table 5
116 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 6
Tables 117
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 7
118 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 8
Table 9
Table 10
Tables 119
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 11
Table 12
120 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 13
52.
52.
62.
62.
62.
42.
52.
52.
62.
42.
42.
42.
52.
32.
42.
42.
46
2.6
2.7
2.7
2.8
2.5
2.6
2.6
2.7
2.5
2.5
2.5
2.6
2.4
2.5
2.5
2.5
72.
72.
82.
82.
92.
62.
72.
72.
82.
62.
62.
62.
72.
52.
52.
52.
68
2.8
2.9
2.9
3.0
2.7
2.8
2.8
2.9
2.6
2.7
2.7
2.8
2.5
2.6
2.6
2.7
92.
93.
03.
03.
12.
82.
92.
93.
02.
72.
82.
82.
92.
62.
72.
72.
710
3.0
3.1
3.1
3.2
2.9
3.0
3.0
3.1
2.8
2.9
2.9
2.9
2.7
2.7
2.7
2.8
113.
13.
23.
23.
23.
03.
13.
13.
22.
92.
92.
93.
02.
72.
82.
82.
912
3.2
3.3
3.3
3.3
3.1
3.2
3.2
3.2
2.9
3.0
3.0
3.1
2.8
2.9
2.9
3.0
133.
33.
33.
33.
43.
23.
23.
23.
33.
03.
13.
13.
22.
92.
92.
93.
014
3.4
3.4
3.4
3.5
3.2
3.3
3.3
3.4
3.1
3.2
3.2
3.2
2.9
3.0
3.0
3.1
153.
43.
53.
53.
63.
33.
43.
43.
53.
23.
23.
23.
33.
03.
13.
13.
216
3.5
3.6
3.6
3.7
3.4
3.5
3.5
3.6
3.2
3.3
3.3
3.4
3.1
3.1
3.1
3.2
173.
63.
73.
73.
83.
53.
63.
63.
63.
33.
43.
43.
53.
13.
23.
23.
318
3.7
3.8
3.8
3.8
3.5
3.6
3.6
3.7
3.4
3.4
3.4
3.5
3.2
3.3
3.3
3.3
193.
73.
83.
83.
93.
63.
73.
73.
83.
43.
53.
53.
63.
23.
33.
33.
420
3.8
3.9
3.9
4.0
3.7
3.8
3.8
3.9
3.5
3.6
3.6
3.7
3.3
3.4
3.4
3.5
213.
94.
04.
04.
13.
83.
83.
83.
93.
63.
63.
63.
73.
33.
43.
43.
522
4.0
4.0
4.0
4.1
3.8
3.9
3.9
4.0
3.6
3.7
3.7
3.8
3.4
3.5
3.5
3.6
234.
04.
14.
04.
23.
94.
04.
04.
13.
73.
83.
83.
83.
53.
53.
53.
624
4.1
4.2
4.2
4.3
3.9
4.0
4.0
4.1
3.7
3.8
3.8
3.9
3.5
3.6
3.6
3.7
254.
24.
34.
34.
34.
04.
14.
14.
23.
83.
93.
94.
03.
63.
63.
63.
726
4.2
4.3
4.3
4.4
4.1
4.2
4.2
4.3
3.9
3.9
3.9
4.0
3.6
3.7
3.7
3.8
274.
34.
44.
44.
54.
14.
24.
24.
33.
94.
04.
04.
13.
73.
83.
83.
828
4.4
4.5
4.5
4.6
4.2
4.3
4.3
4.4
4.0
4.1
4.1
4.1
3.7
3.8
3.8
3.9
294.
44.
54.
54.
64.
34.
44.
44.
44.
04.
14.
14.
23.
83.
93.
93.
930
4.4
4.5
4.5
4.6
4.3
4.4
4.4
4.4
4.0
4.1
4.1
4.2
3.8
3.9
3.9
3.9
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 12
"
Height of Backfill H Above Top of Pipe, Feet
Tables 121
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 14
52.
93.
03.
03.
12.
93.
03.
03.
02.
82.
92.
93.
02.
72.
82.
82.
96
3.0
3.1
3.1
3.2
3.0
3.1
3.1
3.2
2.9
3.0
3.0
3.1
2.8
2.9
2.9
3.0
73.
13.
23.
23.
33.
13.
23.
23.
33.
03.
13.
13.
22.
93.
03.
03.
18
3.3
3.3
3.3
3.4
3.2
3.3
3.3
3.4
3.1
3.2
3.2
3.2
3.0
3.0
3.0
3.1
93.
43.
43.
43.
53.
33.
43.
43.
53.
23.
23.
23.
33.
03.
13.
13.
210
3.5
3.5
3.5
3.6
3.4
3.5
3.5
3.5
3.2
3.3
3.3
3.4
3.1
3.2
3.2
3.3
113.
63.
63.
63.
73.
53.
53.
53.
63.
33.
43.
43.
53.
23.
33.
33.
412
3.6
3.7
3.7
3.8
3.5
3.6
3.6
3.7
3.4
3.5
3.5
3.6
3.2
3.3
3.3
3.4
133.
73.
83.
83.
93.
63.
73.
73.
83.
53.
63.
63.
73.
33.
43.
43.
514
3.8
3.9
3.9
4.0
3.7
3.8
3.8
3.9
3.6
3.6
3.6
3.7
3.4
3.5
3.5
3.6
153.
94.
04.
04.
13.
83.
93.
94.
03.
63.
73.
73.
83.
53.
53.
53.
616
4.0
4.1
4.1
4.2
3.9
4.0
4.0
4.1
3.7
3.8
3.8
3.9
3.5
3.6
3.6
3.7
174.
14.
24.
24.
34.
04.
04.
04.
13.
83.
93.
94.
03.
63.
73.
73.
818
4.2
4.3
4.3
4.4
4.0
4.1
4.1
4.2
3.8
3.9
3.9
4.0
3.6
3.7
3.7
3.8
194.
24.
34.
34.
44.
14.
24.
24.
33.
94.
04.
04.
13.
73.
83.
83.
920
4.3
4.4
4.4
4.5
4.2
4.3
4.3
4.4
4.0
4.1
4.1
4.2
3.8
3.9
3.9
4.0
214.
44.
54.
54.
64.
34.
44.
44.
54.
04.
14.
14.
23.
83.
93.
94.
022
4.5
4.6
4.6
4.7
4.3
4.4
4.4
4.5
4.1
4.2
4.2
4.3
3.9
4.0
4.0
4.1
234.
64.
74.
74.
84.
44.
54.
54.
64.
24.
34.
34.
43.
94.
04.
04.
124
4.6
4.7
4.7
4.8
4.5
4.6
4.6
4.7
4.2
4.3
4.3
4.4
4.0
4.1
4.1
4.2
254.
74.
84.
84.
94.
54.
64.
64.
74.
34.
44.
44.
54.
14.
24.
24.
226
4.8
4.9
4.9
5.0
4.6
4.7
4.7
4.8
4.4
4.5
4.5
4.6
4.1
4.2
4.2
4.3
274.
85.
05.
05.
14.
74.
84.
84.
94.
44.
54.
54.
64.
24.
34.
34.
428
4.9
5.0
5.0
5.1
4.7
4.8
4.8
4.9
4.5
4.6
4.6
4.7
4.2
4.3
4.3
4.4
295.
05.
15.
15.
24.
84.
94.
95.
04.
54.
64.
64.
84.
34.
44.
44.
530
5.0
5.1
5.1
5.2
4.8
4.9
4.9
5.0
4.5
4.6
4.6
4.8
4.3
4.4
4.4
4.5
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 15
"
Height of Backfill H Above Top of Pipe, Feet
122 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 15
53.
43.
53.
53.
63.
33.
43.
43.
53.
23.
33.
33.
43.
13.
23.
23.
36
3.5
3.6
3.6
3.7
3.4
3.5
3.5
3.6
3.3
3.4
3.4
3.5
3.2
3.3
3.3
3.4
73.
63.
73.
73.
83.
53.
63.
63.
73.
43.
53.
53.
63.
33.
43.
43.
58
3.7
3.8
3.8
3.9
3.6
3.7
3.7
3.8
3.5
3.6
3.6
3.7
3.4
3.5
3.5
3.6
93.
83.
93.
94.
03.
73.
83.
83.
93.
63.
73.
73.
83.
53.
63.
63.
710
3.9
4.0
4.0
4.1
3.8
3.9
3.9
4.0
3.7
3.8
3.8
3.9
3.5
3.6
3.6
3.7
114.
04.
14.
14.
23.
94.
04.
04.
13.
83.
93.
94.
03.
63.
73.
73.
812
4.1
4.2
4.2
4.3
4.0
4.1
4.1
4.2
3.8
3.9
3.9
4.1
3.7
3.8
3.8
3.9
134.
24.
34.
34.
44.
14.
24.
24.
33.
94.
04.
04.
13.
83.
93.
94.
014
4.3
4.4
4.4
4.5
4.2
4.3
4.3
4.4
4.0
4.1
4.1
4.2
3.8
3.9
3.9
4.0
154.
44.
54.
54.
64.
34.
44.
44.
54.
14.
24.
24.
33.
94.
04.
04.
116
4.5
4.6
4.6
4.7
4.3
4.4
4.4
4.6
4.2
4.3
4.3
4.4
4.0
4.1
4.1
4.2
174.
64.
74.
74.
84.
44.
54.
54.
64.
24.
34.
34.
44.
04.
14.
14.
218
4.6
4.8
4.8
4.9
4.5
4.6
4.6
4.7
4.3
4.4
4.4
4.5
4.1
4.2
4.2
4.3
194.
74.
84.
85.
04.
64.
74.
74.
84.
44.
54.
54.
64.
24.
34.
34.
420
4.8
4.9
4.9
5.0
4.7
4.8
4.8
4.9
4.4
4.6
4.6
4.7
4.2
4.3
4.3
4.4
214.
95.
05.
05.
14.
74.
94.
95.
04.
54.
64.
64.
74.
34.
44.
44.
522
5.0
5.1
5.1
5.2
4.8
4.9
4.9
5.0
4.6
4.7
4.7
4.8
4.3
4.5
4.5
4.6
235.
15.
25.
25.
34.
95.
05.
05.
14.
74.
84.
84.
94.
44.
54.
54.
624
5.1
5.3
5.3
5.4
5.0
5.1
5.1
5.2
4.7
4.8
4.8
5.0
4.5
4.6
4.6
4.7
255.
25.
35.
35.
55.
05.
25.
25.
34.
84.
94.
95.
04.
54.
64.
64.
826
5.3
5.4
5.4
5.5
5.1
5.2
5.2
5.3
4.9
5.0
5.0
5.1
4.6
4.7
4.7
4.8
275.
45.
55.
55.
65.
25.
35.
35.
44.
95.
05.
05.
24.
64.
84.
84.
928
5.4
5.6
5.6
5.7
5.3
5.4
5.4
5.5
5.0
5.1
5.1
5.2
4.7
4.8
4.8
4.9
295.
55.
65.
65.
85.
35.
45.
45.
65.
05.
25.
25.
34.
84.
94.
95.
030
5.5
5.6
5.6
5.8
5.3
5.4
5.4
5.6
5.0
5.2
5.2
5.3
4.8
4.9
4.9
5.0
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 18
"
Height of Backfill H Above Top of Pipe, Feet
Tables 123
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 16
53.
83.
93.
94.
03.
73.
83.
84.
03.
63.
83.
83.
93.
63.
73.
73.
86
3.9
4.0
4.0
4.1
3.8
3.9
3.9
4.1
3.7
3.9
3.9
4.0
3.6
3.8
3.8
3.9
74.
04.
14.
14.
23.
94.
14.
14.
23.
83.
93.
94.
13.
73.
83.
84.
08
4.1
4.2
4.2
4.4
4.0
4.2
4.2
4.3
3.9
4.0
4.0
4.2
3.8
3.9
3.9
4.0
94.
24.
44.
44.
54.
14.
34.
34.
44.
04.
14.
14.
33.
94.
04.
04.
110
4.3
4.5
4.5
4.6
4.2
4.4
4.4
4.5
4.1
4.2
4.2
4.3
4.0
4.1
4.1
4.2
114.
44.
64.
64.
74.
34.
54.
54.
64.
24.
34.
34.
44.
04.
24.
24.
312
4.5
4.7
4.7
4.8
4.4
4.6
4.6
4.7
4.3
4.4
4.4
4.5
4.1
4.2
4.2
4.4
134.
64.
84.
84.
94.
54.
64.
64.
84.
44.
54.
54.
64.
24.
34.
34.
414
4.7
4.9
4.9
5.0
4.6
4.7
4.7
4.9
4.4
4.6
.46
4.7
4.3
4.4
4.4
4.5
154.
85.
05.
05.
14.
74.
84.
85.
04.
54.
64.
64.
84.
34.
54.
54.
616
4.9
5.1
5.1
5.2
4.8
4.9
4.9
5.0
4.6
4.7
4.7
4.8
4.4
4.5
4.5
4.6
175.
05.
25.
25.
34.
95.
05.
05.
14.
74.
84.
84.
94.
54.
64.
64.
718
5.1
5.2
5.2
5.4
5.0
5.1
5.1
5.2
4.8
4.9
4.9
5.0
4.5
4.7
4.7
4.8
195.
25.
35.
35.
55.
15.
25.
25.
34.
85.
05.
05.
14.
64.
74.
74.
920
5.3
5.4
5.4
5.6
5.1
5.3
5.3
5.4
4.9
5.0
5.0
5.2
4.7
4.8
4.8
4.9
215.
45.
55.
55.
65.
25.
35.
35.
55.
05.
15.
15.
24.
74.
94.
95.
022
5.5
5.6
5.6
5.7
5.3
5.4
5.4
5.6
5.1
5.2
5.2
5.3
4.8
4.9
4.9
5.1
235.
55.
75.
75.
85.
45.
55.
55.
65.
15.
35.
35.
44.
95.
05.
05.
124
5.6
5.8
5.8
5.9
5.4
5.6
5.6
5.7
5.2
5.3
5.3
5.5
4.9
5.1
5.1
5.2
255.
75.
85.
86.
05.
55.
75.
75.
85.
35.
45.
45.
55.
05.
15.
15.
226
5.8
5.9
5.9
6.1
5.6
5.7
5.7
5.9
5.3
5.5
5.5
5.6
5.1
5.2
5.2
5.3
275.
96.
06.
06.
15.
75.
85.
85.
95.
45.
55.
55.
75.
15.
25.
25.
428
6.0
6.1
6.1
6.2
5.7
5.9
5.9
6.0
5.5
5.6
5.6
5.7
5.2
5.3
5.3
5.4
296.
06.
26.
26.
35.
86.
06.
06.
15.
55.
75.
75.
85.
25.
45.
45.
530
6.0
6.2
6.2
6.3
5.8
6.0
6.0
6.1
5.5
5.7
5.7
5.8
5.2
5.4
5.4
5.5
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 21
"
Height of Backfill H Above Top of Pipe, Feet
124 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 17
54.
24.
34.
34.
54.
14.
34.
34.
44.
14.
24.
24.
34.
04.
14.
14.
26
4.3
4.5
4.5
4.6
4.2
4.4
4.4
4.5
4.2
4.3
4.3
4.4
4.1
4.2
4.2
4.3
74.
44.
64.
64.
74.
44.
54.
54.
64.
34.
44.
44.
54.
14.
34.
34.
48
4.6
4.7
4.7
4.8
4.5
4.6
4.6
4.7
4.3
4.5
4.5
4.6
4.2
4.4
4.4
4.5
94.
74.
84.
84.
94.
64.
74.
74.
84.
44.
64.
64.
74.
34.
44.
44.
610
4.8
4.9
4.9
5.0
4.7
4.8
4.8
4.9
4.5
4.7
4.7
4.8
4.4
4.5
4.5
4.6
114.
95.
05.
05.
24.
84.
94.
95.
04.
64.
84.
84.
94.
54.
64.
64.
712
5.0
5.1
5.1
5.3
4.9
5.0
5.0
5.1
4.7
4.8
4.8
5.0
4.5
4.7
4.7
4.8
135.
15.
25.
25.
45.
05.
15.
15.
24.
84.
94.
95.
14.
64.
74.
74.
914
5.2
5.3
5.3
5.5
5.1
5.2
5.2
5.3
4.9
5.0
5.0
5.2
4.7
4.8
4.8
5.0
155.
35.
45.
45.
65.
25.
35.
35.
45.
05.
15.
15.
24.
84.
94.
95.
016
5.4
5.5
5.5
5.7
5.2
5.4
5.4
5.5
5.0
5.2
5.2
5.3
4.8
5.0
5.0
5.1
175.
55.
65.
65.
85.
35.
55.
55.
65.
15.
35.
35.
44.
95.
05.
05.
218
5.6
5.7
5.7
5.9
5.4
5.6
5.6
5.7
5.2
5.3
5.3
5.5
5.0
5.1
5.1
5.3
195.
75.
85.
86.
05.
55.
75.
75.
85.
35.
45.
45.
65.
05.
25.
25.
320
5.8
5.9
5.9
6.1
5.6
5.7
5.7
5.9
5.4
5.5
5.5
5.6
5.1
5.3
5.3
5.4
215.
96.
06.
06.
15.
75.
85.
86.
05.
45.
65.
65.
75.
25.
35.
35.
522
5.9
6.1
6.1
6.2
5.8
5.9
5.9
6.0
5.5
5.7
5.7
5.8
5.3
5.4
5.4
5.5
236.
06.
26.
26.
35.
86.
06.
06.
15.
65.
75.
75.
95.
35.
55.
55.
624
6.1
6.3
6.3
6.4
5.9
6.1
6.1
6.2
5.7
5.8
5.8
5.9
5.4
5.5
5.5
5.7
256.
26.
36.
36.
56.
06.
26.
26.
35.
75.
95.
96.
05.
45.
65.
65.
726
6.3
6.4
6.4
6.6
6.1
6.2
6.2
6.4
5.8
5.9
5.9
6.1
5.5
5.7
5.7
5.8
276.
46.
56.
56.
76.
26.
36.
36.
55.
96.
06.
06.
25.
65.
75.
75.
928
6.4
6.6
6.6
6.8
6.2
6.4
6.4
6.5
5.9
6.1
6.1
6.2
5.6
5.8
5.8
5.9
296.
56.
76.
76.
86.
36.
56.
56.
66.
06.
26.
26.
35.
75.
85.
86.
030
6.5
6.7
6.7
6.8
6.3
6.5
6.5
6.6
6.0
6.2
6.2
6.3
5.7
5.8
5.8
6.0
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 24
"
Height of Backfill H Above Top of Pipe, Feet
Tables 125
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 18
54.
64.
84.
84.
94.
64.
74.
74.
94.
54.
64.
64.
84.
44.
54.
54.
76
4.7
4.9
4.9
5.0
4.7
4.8
4.8
5.0
4.6
4.7
4.7
4.9
4.5
4.6
4.6
4.8
74.
95.
05.
05.
24.
84.
94.
95.
14.
74.
84.
85.
04.
64.
74.
74.
98
5.0
5.1
5.1
5.3
4.9
5.0
5.0
5.2
4.8
4.9
4.9
5.1
4.6
4.8
4.8
4.9
95.
15.
25.
25.
45.
05.
15.
15.
34.
95.
05.
05.
24.
74.
94.
95.
010
5.2
5.4
5.4
5.5
5.1
5.2
5.2
5.4
5.0
5.1
5.1
5.3
4.8
5.0
5.0
5.1
115.
35.
55.
55.
65.
25.
45.
45.
55.
05.
25.
25.
34.
95.
05.
05.
212
5.4
5.6
5.6
5.7
5.3
5.5
5.5
5.6
5.1
5.3
5.3
5.4
5.0
5.1
5.1
5.3
135.
55.
75.
75.
85.
45.
65.
65.
75.
25.
45.
45.
55.
05.
25.
25.
314
5.6
5.8
5.8
5.9
5.5
5.7
5.7
5.8
5.3
5.5
5.5
5.6
5.1
5.3
5.3
5.4
155.
75.
95.
96.
05.
65.
75.
75.
95.
45.
55.
55.
75.
25.
35.
35.
516
5.8
6.0
6.0
6.1
5.7
5.8
5.8
6.0
5.5
5.6
5.6
5.8
5.3
5.4
5.4
5.6
175.
96.
16.
16.
25.
85.
95.
96.
15.
65.
75.
75.
95.
35.
55.
55.
618
6.0
6.2
6.2
6.3
5.9
6.0
6.0
6.2
5.6
5.8
5.8
6.0
5.4
5.6
5.6
5.7
196.
16.
36.
36.
46.
06.
16.
16.
35.
75.
95.
96.
05.
55.
65.
65.
820
6.2
6.4
6.4
6.5
6.0
6.2
6.2
6.4
5.8
6.0
6.0
6.1
5.6
5.7
5.7
5.9
216.
36.
56.
56.
66.
16.
36.
36.
55.
96.
06.
06.
25.
65.
85.
85.
922
6.4
6.6
6.6
6.7
6.2
6.4
6.4
6.5
6.0
6.1
6.1
6.3
5.7
5.8
5.8
6.0
236.
56.
76.
76.
86.
36.
56.
56.
66.
06.
26.
26.
45.
85.
95.
96.
124
6.6
6.7
6.7
6.9
6.4
6.5
6.5
6.7
6.1
6.3
6.3
6.4
5.8
6.0
6.0
6.1
256.
76.
86.
87.
06.
56.
66.
66.
86.
26.
36.
36.
55.
96.
16.
16.
226
6.8
6.9
6.9
7.1
6.6
6.7
6.7
6.9
6.3
6.4
6.4
6.6
6.0
6.1
6.1
6.3
276.
87.
07.
07.
26.
66.
86.
87.
06.
36.
56.
56.
76.
06.
26.
26.
328
6.9
7.1
7.1
7.3
6.7
6.9
6.9
7.0
6.4
6.6
6.6
6.7
6.1
6.2
6.2
6.4
297.
07.
27.
27.
46.
87.
07.
07.
16.
56.
66.
66.
86.
26.
36.
36.
530
7.0
7.2
7.2
7.4
6.8
7.0
7.0
7.1
6.5
6.6
6.6
6.8
6.2
6.3
6.3
6.5
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 27
"
Height of Backfill H Above Top of Pipe, Feet
126 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 19
55.
05.
25.
25.
45.
05.
15.
15.
34.
95.
15.
15.
24.
85.
05.
05.
16
5.2
5.3
5.3
5.5
5.1
5.3
5.3
5.4
5.0
5.2
5.2
5.3
4.9
5.1
5.1
5.2
75.
35.
45.
45.
65.
25.
45.
45.
55.
15.
35.
35.
45.
05.
15.
15.
38
5.4
5.6
5.6
5.7
5.3
5.5
5.5
5.6
5.2
5.4
5.4
5.5
5.1
5.2
5.2
5.4
95.
55.
75.
75.
85.
45.
65.
65.
75.
35.
45.
45.
65.
15.
35.
35.
510
5.6
5.8
5.8
6.0
5.5
5.7
5.7
5.9
5.4
5.5
5.5
5.7
5.2
5.4
5.4
5.5
115.
75.
95.
96.
15.
65.
85.
86.
05.
55.
65.
65.
85.
35.
55.
55.
612
5.9
6.0
6.0
6.2
5.7
5.9
5.9
6.1
5.6
5.7
5.7
5.9
5.4
5.5
5.5
5.7
136.
06.
16.
16.
35.
86.
06.
06.
25.
75.
85.
86.
05.
55.
65.
65.
814
6.1
6.2
6.2
6.4
5.9
6.1
6.1
6.3
5.7
5.9
5.9
6.1
5.5
5.7
5.7
5.9
156.
26.
36.
36.
56.
06.
26.
26.
45.
86.
06.
06.
25.
65.
85.
85.
916
6.3
6.4
6.4
6.6
6.1
6.3
6.3
6.5
5.9
6.1
6.1
6.2
5.7
5.9
5.9
6.0
176.
46.
66.
66.
76.
26.
46.
46.
66.
06.
26.
26.
35.
85.
95.
96.
118
6.5
6.7
6.7
6.8
6.3
6.5
6.5
6.7
6.1
6.3
6.3
6.4
5.8
6.0
6.0
6.2
196.
66.
86.
86.
96.
46.
66.
66.
76.
26.
36.
36.
55.
96.
16.
16.
320
6.7
6.9
6.9
7.0
6.5
6.7
6.7
6.8
6.2
6.4
6.4
6.6
6.0
6.2
6.2
6.3
216.
86.
96.
97.
16.
66.
86.
86.
96.
36.
56.
56.
76.
16.
26.
26.
422
6.9
7.0
7.0
7.2
6.7
6.8
6.8
7.0
6.4
6.6
6.6
6.8
6.1
6.3
6.3
6.5
237.
07.
17.
17.
36.
86.
96.
97.
16.
56.
76.
76.
86.
26.
46.
46.
524
7.1
7.2
7.2
7.4
6.8
7.0
7.0
7.2
6.6
6.7
6.7
6.9
6.3
6.4
6.4
6.6
257.
17.
37.
37.
56.
97.
17.
17.
36.
66.
86.
87.
06.
36.
56.
56.
726
7.2
7.4
7.4
7.6
7.0
7.2
7.2
7.4
6.7
6.9
6.9
7.1
6.4
6.6
6.6
6.7
277.
37.
57.
57.
77.
17.
37.
37.
56.
87.
07.
07.
16.
56.
66.
66.
828
7.4
7.6
7.6
7.8
7.2
7.4
7.4
7.5
6.9
7.0
7.0
7.2
6.5
6.7
6.7
6.9
297.
57.
77.
77.
97.
37.
47.
47.
66.
97.
17.
17.
36.
66.
86.
86.
930
7.5
7.7
7.7
7.9
7.3
7.4
7.4
7.6
6.9
7.1
7.1
7.3
6.6
6.8
6.8
6.9
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 30
"
Height of Backfill H Above Top of Pipe, Feet
Tables 127
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 20
55.
55.
65.
65.
85.
45.
65.
65.
85.
35.
55.
55.
75.
25.
45.
45.
66
5.6
5.8
5.8
5.9
5.5
5.7
5.7
5.9
5.4
5.6
5.6
5.8
5.3
5.5
5.5
5.7
75.
75.
95.
96.
15.
65.
85.
86.
05.
55.
75.
75.
95.
45.
65.
65.
88
5.8
6.0
6.0
6.2
5.7
5.9
5.9
6.1
5.6
5.8
5.8
6.0
5.5
5.7
5.7
5.8
95.
96.
16.
16.
35.
86.
06.
06.
25.
75.
95.
96.
15.
65.
75.
75.
910
6.1
6.2
6.2
6.4
5.9
6.1
6.1
6.3
5.8
6.0
6.0
6.2
5.6
5.8
5.8
6.0
116.
26.
46.
46.
56.
16.
26.
26.
45.
96.
16.
16.
35.
75.
95.
96.
112
6.3
6.5
6.5
6.7
6.2
6.3
6.3
6.5
6.0
6.2
6.2
6.3
5.8
6.0
6.0
6.2
136.
46.
66.
66.
86.
36.
46.
46.
66.
16.
36.
36.
45.
96.
16.
16.
214
6.5
6.7
6.7
6.9
6.4
6.5
6.5
6.7
6.2
6.3
6.3
6.5
6.0
6.1
6.1
6.3
156.
66.
86.
87.
06.
56.
66.
66.
86.
36.
46.
46.
66.
06.
26.
26.
416
6.7
6.9
6.9
7.1
6.6
6.7
6.7
6.9
6.3
6.5
6.5
6.7
6.1
6.3
6.3
6.5
176.
87.
07.
07.
26.
76.
86.
87.
06.
46.
66.
66.
86.
26.
46.
46.
618
6.9
7.1
7.1
7.3
6.8
6.9
6.9
7.1
6.5
6.7
6.7
6.9
6.3
6.5
6.5
6.6
197.
07.
27.
27.
46.
87.
07.
07.
26.
66.
86.
87.
06.
36.
56.
56.
720
7.1
7.3
7.3
7.5
6.9
7.1
7.1
7.3
6.7
6.9
6.9
7.1
6.4
6.6
6.6
6.8
217.
27.
47.
47.
67.
07.
27.
27.
46.
87.
07.
07.
16.
56.
76.
76.
922
7.3
7.5
7.5
7.7
7.1
7.3
7.3
7.5
6.9
7.0
7.0
7.2
6.6
6.7
6.7
6.9
237.
47.
67.
67.
87.
27.
47.
47.
66.
97.
17.
17.
36.
66.
86.
87.
024
7.5
7.7
7.7
7.9
7.3
7.5
7.5
7.7
7.0
7.2
7.2
7.4
6.7
6.9
6.9
7.1
257.
67.
87.
88.
07.
47.
67.
67.
87.
17.
37.
37.
56.
87.
07.
07.
126
7.7
7.9
7.9
8.1
7.5
7.7
7.7
7.9
7.2
7.4
7.4
7.5
6.8
7.0
7.0
7.2
277.
88.
08.
08.
27.
67.
87.
87.
97.
27.
47.
47.
66.
97.
17.
17.
328
7.9
8.1
8.1
8.3
7.6
7.8
7.8
8.0
7.3
7.5
7.5
7.7
7.0
7.1
7.2
7.4
298.
08.
28.
28.
47.
77.
97.
98.
17.
47.
67.
67.
87.
17.
27.
27.
430
8.0
8.2
8.2
8.4
7.7
7.9
7.9
8.1
7.4
7.6
7.6
7.8
7.1
7.2
7.2
7.4
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 33
"
Height of Backfill H Above Top of Pipe, Feet
128 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 21
55.
96.
16.
16.
35.
86.
06.
06.
25.
75.
95.
96.
15.
65.
85.
86.
06
6.0
6.2
6.2
6.4
5.9
6.1
6.1
6.3
5.8
6.0
6.0
6.2
5.7
5.9
5.9
6.1
76.
16.
36.
36.
56.
06.
26.
26.
45.
96.
16.
16.
35.
86.
06.
06.
28
6.2
6.4
6.4
6.6
6.2
6.3
6.3
6.5
6.0
6.2
6.2
6.4
5.9
6.1
6.1
6.3
96.
46.
66.
66.
86.
36.
56.
56.
76.
16.
36.
36.
56.
06.
26.
26.
410
6.5
6.7
6.7
6.9
6.4
6.6
6.6
6.8
6.2
6.4
6.4
6.6
6.1
6.3
6.3
6.4
116.
66.
86.
87.
06.
56.
76.
76.
96.
36.
56.
56.
76.
16.
36.
36.
512
6.7
6.9
6.9
7.1
6.6
6.8
6.8
7.0
6.4
6.6
6.6
6.8
6.2
6.4
6.4
6.6
136.
87.
07.
07.
26.
76.
96.
97.
16.
56.
76.
76.
96.
36.
56.
56.
714
6.9
7.1
7.1
7.3
6.8
7.0
7.0
7.2
6.6
6.8
6.8
7.0
6.4
6.6
6.6
6.8
157.
07.
27.
27.
46.
97.
17.
17.
36.
76.
96.
97.
16.
56.
76.
76.
916
7.2
7.4
7.4
7.6
7.0
7.2
7.2
7.4
6.8
7.0
7.0
7.2
6.5
6.7
6.7
6.9
177.
37.
57.
57.
77.
17.
37.
37.
56.
97.
17.
17.
36.
66.
86.
87.
018
7.4
7.6
7.6
7.8
7.2
7.4
7.4
7.6
6.9
7.1
7.1
7.3
6.7
6.9
6.9
7.1
197.
57.
77.
77.
97.
37.
57.
57.
77.
07.
27.
27.
46.
87.
07.
07.
220
7.6
7.8
7.8
8.0
7.4
7.6
7.6
7.8
7.1
7.3
7.3
7.5
6.9
7.0
7.0
7.2
217.
77.
97.
98.
17.
57.
77.
77.
97.
27.
47.
47.
66.
97.
17.
17.
322
7.8
8.0
8.0
8.2
7.6
7.8
7.8
8.0
7.3
7.5
7.5
7.7
7.0
7.2
7.2
7.4
237.
98.
18.
18.
37.
77.
97.
98.
17.
47.
67.
67.
87.
17.
37.
37.
524
8.0
8.2
8.2
8.4
7.7
8.0
8.0
8.2
7.5
7.7
7.7
7.9
7.1
7.3
7.3
7.5
258.
18.
38.
38.
57.
88.
08.
08.
27.
57.
77.
77.
97.
27.
47.
47.
626
8.2
8.4
8.4
8.6
7.9
8.1
8.1
8.3
7.6
7.8
7.8
8.0
7.3
7.5
7.5
7.7
278.
28.
58.
58.
78.
08.
28.
28.
47.
77.
97.
98.
17.
47.
67.
67.
828
8.3
8.6
8.6
8.8
8.1
8.3
8.3
8.5
7.8
8.0
8.0
8.2
7.4
7.6
7.6
7.8
298.
48.
68.
68.
98.
28.
48.
48.
67.
88.
18.
18.
37.
57.
77.
77.
930
8.4
8.6
8.6
8.9
8.2
8.4
8.4
8.6
7.8
8.1
8.1
8.3
7.5
7.7
7.7
7.9
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 36
"
Height of Backfill H Above Top of Pipe, Feet
Tables 129
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 22
56.
77.
07.
07.
26.
76.
96.
97.
16.
66.
86.
87.
06.
56.
76.
77.
06
6.9
7.1
7.1
7.3
6.8
7.0
7.0
7.2
6.7
6.9
6.9
7.1
6.6
6.8
6.8
7.0
77.
07.
27.
27.
46.
97.
17.
17.
36.
87.
07.
07.
26.
66.
96.
97.
18
7.1
7.3
7.3
7.5
7.0
7.2
7.2
7.5
6.9
7.1
7.1
7.3
6.7
7.0
7.0
7.2
97.
27.
47.
47.
77.
17.
37.
37.
67.
07.
27.
27.
46.
87.
07.
07.
310
7.3
7.6
7.6
7.8
7.2
7.4
7.4
7.7
7.1
7.3
7.3
7.5
6.9
7.1
7.1
7.3
117.
47.
77.
77.
97.
37.
67.
67.
87.
27.
47.
47.
67.
07.
27.
27.
412
7.6
7.8
7.8
8.0
7.4
7.7
7.7
7.9
7.2
7.5
7.5
7.7
7.1
7.3
7.3
7.5
137.
77.
97.
98.
17.
57.
87.
88.
07.
37.
67.
67.
87.
17.
47.
47.
614
7.8
8.0
8.0
8.3
7.6
7.9
7.9
8.1
7.4
7.7
7.7
7.9
7.2
7.5
7.5
7.7
157.
98.
18.
18.
47.
78.
08.
08.
27.
57.
87.
88.
07.
37.
57.
57.
816
8.0
8.2
8.2
8.5
7.9
8.1
8.1
8.3
7.6
7.9
7.9
8.1
7.4
7.6
7.6
7.8
178.
18.
48.
48.
68.
08.
28.
28.
47.
77.
97.
98.
27.
57.
77.
77.
918
8.2
8.5
8.5
8.7
8.1
8.3
8.3
8.5
7.8
8.0
8.0
8.3
7.5
7.8
7.8
8.0
198.
38.
68.
68.
88.
28.
48.
48.
67.
98.
18.
18.
47.
67.
97.
98.
120
8.4
8.7
8.7
8.9
8.3
8.5
8.5
8.7
8.0
8.2
8.2
8.4
7.7
7.9
7.9
8.2
218.
68.
88.
89.
08.
48.
68.
68.
88.
18.
38.
38.
57.
88.
08.
08.
222
8.7
8.9
8.9
9.1
8.4
8.7
8.7
8.9
8.2
8.4
8.4
8.6
7.9
8.1
8.1
8.3
238.
89.
09.
09.
28.
58.
88.
89.
08.
28.
58.
58.
77.
98.
28.
28.
424
8.9
9.1
9.1
9.3
8.6
8.9
8.9
9.1
8.3
8.6
8.6
8.8
8.0
8.2
8.2
8.5
259.
09.
29.
29.
48.
79.
09.
09.
28.
48.
68.
68.
98.
18.
38.
38.
526
9.1
9.3
9.3
9.5
8.8
9.1
9.1
9.3
8.5
8.7
8.7
9.0
8.2
8.4
8.4
8.6
279.
29.
49.
49.
68.
99.
19.
19.
48.
68.
88.
89.
08.
28.
58.
58.
728
9.3
9.5
9.5
9.7
9.0
9.2
9.2
9.5
8.7
8.9
8.9
9.1
8.3
8.5
8.5
8.8
299.
39.
69.
69.
89.
19.
39.
39.
68.
79.
09.
09.
28.
48.
68.
68.
830
9.3
9.6
9.6
9.8
9.1
9.3
9.3
9.6
8.7
9.0
9.0
9.2
8.4
8.6
8.6
8.8
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 42
"
Height of Backfill H Above Top of Pipe, Feet
130 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 23
57.
57.
87.
88.
07.
47.
77.
78.
07.
37.
67.
67.
97.
27.
57.
57.
86
7.6
7.9
7.9
8.1
7.5
7.8
7.8
8.0
7.4
7.7
7.7
7.9
7.3
7.6
7.6
7.8
77.
78.
08.
08.
27.
67.
97.
98.
27.
57.
87.
88.
07.
47.
67.
67.
98
7.8
8.1
8.1
8.4
7.7
8.0
8.0
8.3
7.6
7.9
7.9
8.1
7.5
7.7
7.7
8.0
98.
08.
28.
28.
57.
88.
18.
18.
47.
78.
08.
08.
27.
57.
87.
88.
110
8.1
8.3
8.3
8.6
8.0
8.2
8.2
8.5
7.8
8.1
8.1
8.3
7.6
7.9
7.9
8.1
118.
28.
58.
58.
78.
18.
38.
38.
67.
98.
28.
28.
47.
78.
08.
08.
212
8.3
8.6
8.6
8.8
8.2
8.4
8.4
8.7
8.0
8.2
8.2
8.5
7.8
8.1
8.1
8.3
138.
48.
78.
79.
08.
38.
58.
58.
88.
18.
38.
38.
67.
98.
18.
18.
414
8.5
8.8
8.8
9.1
8.4
8.7
8.7
8.9
8.2
8.4
8.4
8.7
8.0
8.2
8.2
8.5
158.
78.
98.
99.
28.
58.
88.
89.
08.
38.
58.
58.
88.
08.
38.
38.
616
8.8
9.0
9.0
9.3
8.6
8.9
8.9
9.1
8.4
8.6
8.6
8.9
8.1
8.4
8.4
8.6
178.
99.
29.
29.
48.
79.
09.
09.
28.
58.
78.
79.
08.
28.
58.
58.
718
9.0
9.3
9.3
9.5
8.8
9.1
9.1
9.3
8.6
8.8
8.8
9.1
8.3
8.5
8.5
8.8
199.
19.
49.
49.
68.
99.
29.
29.
48.
68.
98.
99.
28.
48.
68.
68.
920
9.2
9.5
9.5
9.7
9.0
9.3
9.3
9.5
8.7
9.0
9.0
9.3
8.4
8.7
8.7
9.0
219.
39.
69.
69.
99.
19.
49.
49.
68.
89.
19.
19.
38.
58.
88.
89.
022
9.4
9.7
9.7
10.0
9.2
9.5
9.5
9.7
8.9
9.2
9.2
9.4
8.6
8.9
8.9
9.1
239.
59.
89.
810
.19.
39.
69.
69.
89.
09.
39.
39.
58.
78.
98.
99.
224
9.6
9.9
9.9
10.2
9.4
9.7
9.7
9.9
9.1
9.4
9.4
9.6
8.8
9.0
9.0
9.3
259.
710
.010
.010
.39.
59.
89.
810
.09.
29.
49.
49.
78.
89.
19.
19.
426
9.8
10.1
10.1
10.4
9.6
9.9
9.9
10.1
9.3
9.5
9.5
9.8
8.9
9.2
9.2
9.4
279.
910
.210
.210
.59.
710
.010
.010
.29.
39.
69.
69.
99.
09.
29.
29.
528
10.0
10.3
10.3
10.6
9.8
10.1
10.1
10.3
9.4
9.7
9.7
10.0
9.1
9.3
9.3
9.6
2910
.110
.410
.410
.79.
910
.210
.210
.49.
59.
89.
810
.09.
19.
49.
49.
730
10.1
10.4
10.4
10.7
9.9
10.2
10.2
10.4
9.5
9.8
9.8
10.0
9.1
9.4
9.4
9.7
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 48
"
Height of Backfill H Above Top of Pipe, Feet
Tables 131
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 24
58.
38.
68.
68.
98.
38.
68.
68.
98.
28.
58.
58.
88.
18.
48.
48.
76
8.4
8.7
8.7
9.0
8.4
8.7
8.7
9.0
8.3
8.6
8.6
8.9
8.2
8.5
8.5
8.8
78.
68.
98.
99.
28.
58.
88.
89.
18.
48.
68.
68.
98.
28.
58.
58.
88
8.7
9.0
9.0
9.3
8.6
8.9
8.9
9.2
8.4
8.7
8.7
9.0
8.3
8.6
8.6
8.9
98.
89.
19.
19.
48.
79.
09.
09.
38.
58.
88.
89.
18.
48.
78.
79.
010
8.9
9.2
9.2
9.5
8.8
9.1
9.1
9.4
8.6
8.9
8.9
9.2
8.5
8.8
8.8
9.0
119.
09.
39.
39.
68.
99.
29.
29.
58.
79.
09.
09.
38.
58.
88.
89.
112
9.2
9.5
9.5
9.7
9.0
9.3
9.3
9.6
8.8
9.1
9.1
9.4
8.6
8.9
8.9
9.2
139.
39.
69.
69.
99.
19.
49.
49.
78.
99.
29.
29.
58.
79.
09.
09.
314
9.4
9.7
9.7
10.0
9.2
9.5
9.5
9.8
9.0
9.3
9.3
9.6
8.8
9.1
9.1
9.4
159.
59.
89.
810
.19.
39.
69.
69.
99.
19.
49.
49.
78.
99.
29.
29.
516
9.6
9.9
9.9
10.2
9.5
9.7
9.7
10.0
9.2
9.5
9.5
9.8
9.0
9.3
9.3
9.5
179.
710
.010
.010
.39.
69.
99.
910
.19.
39.
69.
69.
99.
09.
39.
39.
618
9.9
10.2
10.2
10.4
9.7
10.0
10.0
10.2
9.4
9.7
9.7
10.0
9.1
9.4
9.4
9.7
1910
.010
.310
.310
.69.
810
.110
.110
.49.
59.
89.
810
.19.
29.
59.
59.
820
10.1
10.4
10.4
10.7
9.9
10.2
10.2
10.5
9.6
9.9
9.9
10.2
9.3
9.6
9.6
9.9
2110
.210
.510
.510
.810
.010
.310
.310
.69.
710
.010
.010
.39.
49.
79.
79.
922
10.3
10.6
10.6
10.9
10.1
10.4
10.4
10.7
9.8
10.1
10.1
10.3
9.4
9.7
9.7
10.0
2310
.410
.710
.711
.010
.210
.510
.510
.89.
910
.110
.110
.49.
59.
89.
810
.124
10.5
10.8
10.8
11.1
10.3
10.6
10.6
10.9
9.9
10.2
10.2
10.5
9.6
9.9
9.9
10.2
2510
.610
.910
.911
.210
.410
.710
.711
.010
.010
.310
.310
.69.
710
.010
.010
.326
10.7
11.0
11.0
11.3
10.5
10.8
10.8
11.1
10.1
10.4
10.4
10.7
9.8
10.1
10.1
10.3
2710
.811
.111
.111
.410
.610
.910
.911
.210
.210
.510
.510
.89.
810
.110
.110
.428
10.9
11.2
11.2
11.5
10.7
11.0
11.0
11.3
10.3
10.6
10.6
10.9
9.9
10.2
10.2
10.5
2911
.011
.311
.311
.610
.811
.111
.111
.410
.410
.710
.711
.010
.010
.310
.310
.630
11.0
11.3
11.3
11.6
10.8
11.1
11.1
11.4
10.4
10.7
10.7
11.0
10.0
10.3
10.3
10.6
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 54
"
Height of Backfill H Above Top of Pipe, Feet
132 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 25
59.
29.
59.
59.
99.
19.
59.
59.
89.
09.
49.
49.
78.
99.
39.
39.
66
9.3
9.6
9.6
10.0
9.2
9.6
9.6
9.9
9.1
9.4
9.4
9.8
9.0
9.3
9.3
9.7
79.
49.
79.
710
.19.
39.
69.
610
.09.
29.
59.
59.
99.
19.
49.
49.
78
9.5
9.9
9.9
10.2
9.4
9.8
9.8
10.1
9.3
9.6
9.6
9.9
9.1
9.5
9.5
9.8
99.
610
.010
.010
.39.
59.
99.
910
.29.
49.
79.
710
.09.
29.
59.
59.
910
9.8
10.1
10.1
10.4
9.6
10.0
10.0
10.3
9.5
9.8
9.8
10.1
9.3
9.6
9.6
9.9
119.
910
.210
.210
.59.
810
.110
.110
.49.
69.
99.
910
.29.
49.
79.
710
.012
10.0
10.3
10.3
10.6
9.9
10.2
10.2
10.5
9.7
10.0
10.0
10.3
9.5
9.8
9.8
10.1
1310
.110
.410
.410
.810
.010
.310
.310
.69.
810
.110
.110
.49.
69.
99.
910
.214
10.2
10.6
10.6
10.9
10.1
10.4
10.4
10.7
9.9
10.2
10.2
10.5
9.6
10.0
10.0
10.3
1510
.410
.710
.711
.010
.210
.510
.510
.810
.010
.310
.310
.69.
710
.010
.010
.416
10.5
10.8
10.8
11.1
10.3
10.6
10.6
10.9
10.1
10.4
10.4
10.7
9.8
10.1
10.1
10.4
1710
.610
.910
.911
.210
.410
.710
.711
.010
.110
.510
.510
.89.
910
.210
.210
.518
10.7
11.0
11.0
11.4
10.5
10.8
10.8
11.2
10.2
10.6
10.6
10.9
10.0
10.3
10.3
10.6
1910
.811
.211
.211
.510
.610
.910
.911
.310
.310
.710
.711
.010
.010
.410
.410
.720
10.9
11.3
11.3
11.6
10.7
11.0
11.0
11.4
10.4
10.8
10.8
11.1
10.1
10.4
10.4
10.8
2111
.111
.411
.411
.710
.811
.211
.211
.510
.510
.810
.811
.210
.210
.510
.510
.822
11.2
11.5
11.5
11.8
10.9
11.3
11.3
11.6
10.6
10.9
10.9
11.3
10.3
10.6
10.6
10.9
2311
.311
.611
.611
.911
.011
.411
.411
.710
.711
.011
.011
.410
.410
.710
.711
.024
11.4
11.7
11.7
12.0
11.1
11.5
11.5
11.8
10.8
11.1
11.1
11.4
10.5
10.8
10.8
11.1
2511
.511
.811
.812
.111
.211
.611
.611
.910
.911
.211
.211
.510
.510
.810
.811
.226
11.6
11.9
11.9
12.3
11.3
11.7
11.7
12.0
11.0
11.3
11.3
11.6
10.6
10.9
10.9
11.2
2711
.712
.012
.012
.411
.411
.811
.812
.111
.111
.411
.411
.710
.711
.011
.011
.328
11.8
12.1
12.1
12.5
11.5
11.9
11.9
12.2
11.2
11.5
11.5
11.8
10.8
11.1
11.1
11.4
2911
.912
.212
.212
.611
.612
.012
.012
.311
.211
.611
.611
.910
.811
.211
.211
.530
11.9
12.2
12.2
12.6
11.6
12.0
12.0
12.3
11.2
11.6
11.6
11.9
10.8
11.2
11.2
11.5
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 60
"
Height of Backfill H Above Top of Pipe, Feet
Tables 133
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 26
510
.110
.410
.410
.810
.010
.410
.410
.79.
910
.310
.310
.79.
810
.210
.210
.66
10.2
10.5
10.5
10.9
10.1
10.4
10.4
10.8
10.0
10.3
10.3
10.7
9.9
10.2
10.2
10.6
710
.310
.610
.611
.010
.210
.510
.510
.910
.010
.410
.410
.89.
910
.310
.310
.68
10.4
10.7
10.7
11.1
10.3
10.6
10.6
11.0
10.1
10.5
10.5
10.9
10.0
10.3
10.3
10.7
910
.510
.810
.811
.210
.410
.710
.711
.110
.210
.610
.610
.910
.110
.410
.410
.810
10.6
11.0
11.0
11.3
10.5
10.8
10.8
11.2
10.3
10.7
10.7
11.0
10.1
10.5
10.5
10.9
1110
.711
.111
.111
.410
.610
.910
.911
.310
.410
.810
.811
.110
.210
.610
.610
.912
10.8
11.2
11.2
11.6
10.7
11.1
11.1
11.4
10.5
10.9
10.9
11.2
10.3
10.7
10.7
11.0
1311
.011
.311
.311
.710
.811
.211
.211
.510
.611
.011
.011
.310
.410
.710
.711
.114
11.1
11.4
11.4
11.8
10.9
11.3
11.3
11.6
10.7
11.1
11.1
11.4
10.5
10.8
10.8
11.2
1511
.211
.611
.611
.911
.011
.411
.411
.710
.811
.111
.111
.510
.610
.910
.911
.316
11.3
11.7
11.7
12.0
11.1
11.5
11.5
11.8
10.9
11.2
11.2
11.6
10.6
11.0
11.0
11.3
1711
.411
.811
.812
.211
.311
.611
.612
.011
.011
.311
.311
.710
.711
.111
.111
.418
11.6
11.9
11.9
12.3
11.4
11.7
11.7
12.1
11.1
11.4
11.4
11.8
10.8
11.2
11.2
11.5
1911
.712
.012
.012
.411
.511
.811
.812
.211
.211
.511
.511
.910
.911
.211
.211
.620
11.8
12.1
12.1
12.5
11.6
11.9
11.9
12.3
11.3
11.6
11.6
12.0
11.0
11.3
11.3
11.7
2111
.912
.312
.312
.611
.712
.012
.012
.411
.411
.711
.712
.111
.011
.411
.411
.722
12.0
12.4
12.4
12.7
11.8
12.1
12.1
12.5
11.5
11.8
11.8
12.2
11.1
11.5
11.5
11.8
2312
.112
.512
.512
.811
.912
.212
.212
.611
.611
.911
.912
.311
.211
.611
.611
.924
12.2
12.6
12.6
13.0
12.0
12.3
12.3
12.7
11.6
12.0
12.0
12.4
11.3
11.6
11.6
12.0
2512
.412
.712
.713
.112
.112
.512
.512
.811
.712
.112
.112
.411
.411
.711
.712
.126
12.5
12.8
12.8
13.2
12.2
12.6
12.6
12.9
11.8
12.2
12.2
12.5
11.5
11.8
11.8
12.2
2712
.612
.912
.913
.312
.312
.712
.713
.011
.912
.312
.312
.611
.511
.911
.912
.228
12.7
13.0
13.0
13.4
12.4
12.8
12.8
13.1
12.0
12.4
12.4
12.7
11.6
12.0
12.0
12.3
2912
.813
.213
.213
.512
.512
.912
.913
.212
.112
.512
.512
.811
.712
.012
.012
.430
12.8
13.2
13.2
13.5
12.5
12.9
12.9
13.2
12.1
12.5
12.5
12.8
11.7
12.0
12.0
12.4
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 66
"
Height of Backfill H Above Top of Pipe, Feet
134 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 27
510
.911
.311
.311
.810
.911
.311
.311
.710
.811
.211
.211
.610
.711
.111
.111
.56
11.0
11.4
11.4
11.8
10.9
11.3
11.3
11.7
10.8
11.2
11.2
11.6
10.7
11.1
11.1
11.5
711
.111
.511
.511
.911
.011
.411
.411
.810
.911
.311
.311
.710
.811
.211
.211
.68
11.2
11.6
11.6
12.0
11.1
11.5
11.5
11.9
11.0
11.4
11.4
11.8
10.8
11.2
11.2
11.6
911
.311
.711
.712
.111
.211
.611
.612
.011
.111
.511
.511
.810
.911
.311
.311
.710
11.5
11.8
11.8
12.2
11.3
11.7
11.7
12.1
11.2
11.5
11.5
11.9
11.0
11.4
11.4
11.8
1111
.612
.012
.012
.311
.411
.811
.812
.211
.211
.611
.612
.011
.111
.411
.411
.812
11.7
12.1
12.1
12.5
11.5
11.9
11.9
12.3
11.3
11.7
11.7
12.1
11.1
11.5
11.5
11.9
1311
.812
.212
.212
.611
.712
.012
.012
.411
.411
.811
.812
.211
.211
.611
.612
.014
11.9
12.3
12.3
12.7
11.8
12.2
12.2
12.5
11.5
11.9
11.9
12.3
11.3
11.7
11.7
12.1
1512
.112
.412
.412
.811
.912
.312
.312
.611
.612
.012
.012
.411
.411
.811
.812
.116
12.2
12.6
12.6
12.9
12.0
12.4
12.4
12.8
11.7
12.1
12.1
12.5
11.5
11.9
11.9
12.2
1712
.312
.712
.713
.112
.112
.512
.512
.911
.812
.212
.212
.611
.611
.911
.912
.318
12.4
12.8
12.8
13.2
12.2
12.6
12.6
13.0
11.9
12.3
12.3
12.7
11.6
12.0
12.0
12.4
1912
.512
.912
.913
.312
.312
.712
.713
.112
.012
.412
.412
.811
.712
.112
.112
.520
12.6
13.0
13.0
13.4
12.4
12.8
12.8
13.2
12.1
12.5
12.5
12.9
11.8
12.2
12.2
12.6
2112
.813
.113
.113
.512
.512
.912
.913
.312
.212
.612
.613
.011
.912
.312
.312
.622
12.9
13.3
13.3
13.6
12.6
13.0
13.0
13.4
12.3
12.7
12.7
13.1
12.0
12.3
12.3
12.7
2313
.013
.413
.413
.812
.713
.113
.113
.512
.412
.812
.813
.212
.112
.412
.412
.824
13.1
13.5
13.5
13.9
12.8
13.2
13.2
13.6
12.5
12.9
12.9
13.3
12.1
12.5
12.5
12.9
2513
.213
.613
.614
.013
.013
.313
.313
.712
.613
.013
.013
.412
.212
.612
.613
.026
13.3
13.7
13.7
14.1
13.1
13.4
13.4
13.8
12.7
13.1
13.1
13.4
12.3
12.7
12.7
13.1
2713
.413
.813
.814
.213
.213
.513
.513
.912
.813
.213
.213
.512
.412
.812
.813
.128
13.5
13.9
13.9
14.3
13.3
13.6
13.6
14.0
12.9
13.2
13.2
13.6
12.5
12.8
12.8
13.2
2913
.714
.014
.014
.413
.413
.713
.714
.113
.013
.313
.313
.712
.512
.912
.913
.330
13.7
14.0
14.0
14.4
13.4
13.7
13.7
14.1
13.0
13.3
13.3
13.7
12.5
12.9
12.9
13.3
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 72
"
Height of Backfill H Above Top of Pipe, Feet
Tables 135
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 28
511
.812
.312
.312
.711
.712
.212
.212
.611
.612
.112
.112
.511
.512
.012
.012
.56
11.9
12.3
12.3
12.8
11.8
12.2
12.2
12.7
11.7
12.1
12.1
12.6
11.6
12.0
12.0
12.5
712
.012
.412
.412
.811
.912
.312
.312
.711
.712
.212
.212
.611
.612
.112
.112
.58
12.1
12.5
12.5
12.9
12.0
12.4
12.4
12.8
11.8
12.3
12.3
12.7
11.7
12.1
12.1
12.5
912
.212
.612
.613
.012
.112
.512
.512
.911
.912
.312
.312
.811
.712
.212
.212
.610
12.3
12.7
12.7
13.1
12.2
12.6
12.6
13.0
12.0
12.4
12.4
12.8
11.8
12.2
12.2
12.7
1112
.412
.812
.813
.312
.312
.712
.713
.112
.112
.512
.512
.911
.912
.312
.312
.712
12.5
13.0
13.0
13.4
12.4
12.8
12.8
13.2
12.2
12.6
12.6
13.0
12.0
12.4
12.4
12.8
1312
.713
.113
.113
.512
.512
.912
.913
.312
.312
.712
.713
.112
.112
.512
.512
.914
12.8
13.2
13.2
13.6
12.6
13.0
13.0
13.4
12.4
12.8
12.8
13.2
12.1
12.6
12.6
13.0
1512
.913
.313
.313
.712
.713
.113
.113
.512
.512
.912
.913
.312
.212
.612
.613
.016
13.0
13.4
13.4
13.9
12.8
13.2
13.2
13.7
12.6
13.0
13.0
13.4
12.3
12.7
12.7
13.1
1713
.113
.613
.614
.012
.913
.413
.413
.812
.713
.113
.113
.512
.412
.812
.813
.218
13.3
13.7
13.7
14.1
13.0
13.5
13.5
13.9
12.8
13.2
13.2
13.6
12.5
12.9
12.9
13.3
1913
.413
.813
.814
.213
.213
.613
.614
.012
.913
.313
.313
.712
.613
.013
.013
.420
13.5
13.9
13.9
14.3
13.3
13.7
13.7
14.1
13.0
13.4
13.4
13.8
12.6
13.0
13.0
13.5
2113
.614
.014
.014
.413
.413
.813
.814
.213
.113
.513
.513
.912
.713
.113
.113
.522
13.7
14.1
14.1
14.6
13.5
13.9
13.9
14.3
13.1
13.6
13.6
14.0
12.8
13.2
13.2
13.6
2313
.814
.314
.314
.713
.614
.014
.014
.413
.213
.713
.714
.112
.913
.313
.313
.724
14.0
14.4
14.4
14.8
13.7
14.1
14.1
14.5
13.3
13.8
13.8
14.2
13.0
13.4
13.4
13.8
2514
.114
.514
.514
.913
.814
.214
.214
.613
.413
.813
.814
.313
.113
.513
.513
.926
14.2
14.6
14.6
15.0
13.9
14.3
14.3
14.7
13.5
13.9
13.9
14.4
13.1
13.5
13.5
14.0
2714
.314
.714
.715
.114
.014
.414
.414
.813
.614
.014
.014
.413
.213
.613
.614
.028
14.4
14.8
14.8
15.2
14.1
14.5
14.5
14.9
13.7
14.1
14.1
14.5
13.3
13.7
13.7
14.1
2914
.514
.914
.915
.414
.214
.614
.615
.113
.814
.214
.214
.613
.413
.813
.814
.230
14.5
14.9
14.9
15.4
14.2
14.6
14.6
15.1
13.8
14.2
14.2
14.6
13.4
13.8
13.8
14.2
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 78
"
Height of Backfill H Above Top of Pipe, Feet
136 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 29
512
.613
.113
.113
.612
.513
.013
.013
.512
.412
.912
.913
.412
.312
.812
.813
.36
12.6
13.1
13.1
13.6
12.6
13.0
13.0
13.5
12.4
12.9
12.9
13.4
12.3
12.8
12.8
13.3
712
.713
.213
.213
.712
.613
.113
.113
.612
.513
.013
.013
.412
.412
.812
.813
.38
12.8
13.3
13.3
13.8
12.7
13.2
13.2
13.7
12.6
13.0
13.0
13.5
12.4
12.9
12.9
13.4
912
.913
.413
.413
.912
.813
.313
.313
.712
.713
.113
.113
.612
.513
.013
.013
.410
13.0
13.5
13.5
14.0
12.9
13.4
13.4
13.8
12.7
13.2
13.2
13.7
12.6
13.0
13.0
13.5
1113
.213
.613
.614
.113
.013
.513
.513
.912
.813
.313
.313
.712
.613
.113
.113
.512
13.3
13.7
13.7
14.2
13.1
13.6
13.6
14.0
12.9
13.4
13.4
13.8
12.7
13.2
13.2
13.6
1313
.413
.913
.914
.313
.213
.713
.714
.113
.013
.513
.513
.912
.813
.213
.213
.714
13.5
14.0
14.0
14.4
13.3
13.8
13.8
14.2
13.1
13.6
13.6
14.0
12.9
13.3
13.3
13.8
1513
.614
.114
.114
.513
.513
.913
.914
.413
.213
.713
.714
.113
.013
.413
.413
.816
13.8
14.2
14.2
14.7
13.6
14.0
14.0
14.5
13.3
13.8
13.8
14.2
13.0
13.5
13.5
13.9
1713
.914
.314
.314
.813
.714
.114
.114
.613
.413
.913
.914
.313
.113
.613
.614
.018
14.0
14.5
14.5
14.9
13.8
14.2
14.2
14.7
13.5
13.9
13.9
14.4
13.2
13.7
13.7
14.1
1914
.114
.614
.615
.013
.914
.314
.314
.813
.614
.014
.014
.513
.313
.713
.714
.220
14.2
14.7
14.7
15.1
14.0
14.5
14.5
14.9
13.7
14.1
14.1
14.6
13.4
13.8
13.8
14.3
2114
.414
.814
.815
.314
.114
.614
.615
.013
.814
.214
.214
.713
.513
.913
.914
.322
14.5
14.9
14.9
15.4
14.2
14.7
14.7
15.1
13.9
14.3
14.3
14.8
13.5
14.0
14.0
14.4
2314
.615
.015
.015
.514
.314
.814
.815
.214
.014
.414
.414
.913
.614
.114
.114
.524
14.7
15.2
15.2
15.6
14.4
14.9
14.9
15.3
14.1
14.5
14.5
15.0
13.7
14.1
14.1
14.6
2514
.815
.315
.315
.714
.615
.015
.015
.414
.214
.614
.615
.113
.814
.214
.214
.726
14.9
15.4
15.4
15.8
14.7
15.1
15.1
15.6
14.3
14.7
14.7
15.2
13.9
14.3
14.3
14.8
2715
.115
.515
.516
.014
.815
.215
.215
.714
.414
.814
.815
.314
.014
.414
.414
.828
15.2
15.6
15.6
16.1
14.9
15.3
15.3
15.8
14.5
14.9
14.9
15.3
14.0
14.5
14.5
14.9
2915
.315
.715
.716
.215
.015
.415
.415
.914
.615
.015
.015
.414
.114
.614
.615
.030
15.3
15.7
15.7
16.2
15.0
15.4
15.4
15.9
14.6
15.0
15.0
15.4
14.1
14.6
14.6
15.0
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 84
"
Height of Backfill H Above Top of Pipe, Feet
Tables 137
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 30
513
.514
.014
.014
.513
.413
.913
.914
.513
.313
.813
.814
.413
.213
.713
.714
.36
13.5
14.0
14.0
14.5
13.4
13.9
13.9
14.5
13.3
13.8
13.8
14.4
13.2
13.7
13.7
14.3
713
.614
.114
.114
.613
.514
.014
.014
.513
.413
.913
.914
.413
.213
.713
.714
.38
13.7
14.2
14.2
14.7
13.6
14.1
14.1
14.6
13.4
13.9
13.9
14.4
13.3
13.8
13.8
14.3
913
.814
.314
.314
.813
.714
.214
.214
.713
.514
.014
.014
.513
.313
.813
.814
.310
13.9
14.4
14.4
14.9
13.8
14.3
14.3
14.7
13.6
14.1
14.1
14.6
13.4
13.9
13.9
14.4
1114
.014
.514
.515
.013
.914
.414
.414
.813
.714
.214
.214
.713
.514
.014
.014
.512
14.1
14.6
14.6
15.1
14.0
14.5
14.5
14.9
13.8
14.3
14.3
14.7
13.6
14.0
14.0
14.5
1314
.214
.714
.715
.214
.114
.614
.615
.013
.914
.314
.314
.813
.614
.114
.114
.614
14.4
14.8
14.8
15.3
14.2
14.7
14.7
15.2
14.0
14.4
14.4
14.9
13.7
14.2
14.2
14.7
1514
.515
.015
.015
.414
.314
.814
.815
.314
.114
.514
.515
.013
.814
.314
.314
.816
14.6
15.1
15.1
15.6
14.4
14.9
14.9
15.4
14.1
14.6
14.6
15.1
13.9
14.4
14.4
14.8
1714
.715
.215
.215
.714
.515
.015
.015
.514
.214
.714
.715
.214
.014
.414
.414
.918
14.8
15.3
15.3
15.8
14.6
15.1
15.1
15.6
14.3
14.8
14.8
15.3
14.0
14.5
14.5
15.0
1915
.015
.415
.415
.914
.715
.215
.215
.714
.414
.914
.915
.414
.114
.614
.615
.120
15.1
15.6
15.6
16.0
14.9
15.3
15.3
15.8
14.5
15.0
15.0
15.5
14.2
14.7
14.7
15.2
2115
.215
.715
.716
.215
.015
.415
.415
.914
.615
.115
.115
.614
.314
.814
.815
.222
15.3
15.8
15.8
16.3
15.1
15.5
15.5
16.0
14.7
15.2
15.2
15.7
14.4
14.8
14.8
15.3
2315
.415
.915
.916
.415
.215
.715
.716
.114
.815
.315
.315
.814
.514
.914
.915
.424
15.6
16.0
16.0
16.5
15.3
15.8
15.8
16.2
14.9
15.4
15.4
15.9
14.5
15.0
15.0
15.5
2515
.716
.216
.216
.615
.415
.915
.916
.415
.015
.515
.516
.014
.615
.115
.115
.626
15.8
16.3
16.3
16.8
15.5
16.0
16.0
16.5
15.1
15.6
15.6
16.1
14.7
15.2
15.2
15.7
2715
.916
.416
.416
.915
.616
.116
.116
.615
.215
.715
.716
.214
.815
.315
.315
.728
16.0
16.5
16.5
17.0
15.7
16.2
16.2
16.7
15.3
15.8
15.8
16.3
14.9
15.3
15.3
15.8
2916
.116
.616
.617
.115
.816
.316
.316
.815
.415
.915
.916
.315
.015
.415
.415
.930
16.1
16.6
16.6
17.1
15.8
16.3
16.3
16.8
15.4
15.9
15.9
16.3
15.0
15.4
15.4
15.9
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 90
"
Height of Backfill H Above Top of Pipe, Feet
138 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 31
514
.314
.914
.915
.514
.314
.914
.915
.414
.214
.814
.815
.314
.114
.714
.715
.26
14.4
14.9
14.9
15.5
14.3
14.9
14.9
15.4
14.2
14.8
14.8
15.3
14.1
14.7
14.7
15.2
714
.515
.015
.015
.514
.414
.914
.915
.514
.214
.814
.815
.314
.114
.714
.715
.28
14.5
15.1
15.1
15.6
14.4
15.0
15.0
15.5
14.3
14.8
14.8
15.4
14.1
14.7
14.7
15.2
914
.615
.215
.215
.714
.515
.115
.115
.614
.414
.914
.915
.414
.214
.714
.715
.310
14.7
15.3
15.3
15.8
14.6
15.1
15.1
15.7
14.4
15.0
15.0
15.5
14.3
14.8
14.8
15.3
1114
.915
.415
.415
.914
.715
.215
.215
.814
.515
.015
.015
.614
.314
.814
.815
.412
15.0
15.5
15.5
16.0
14.8
15.3
15.3
15.9
14.6
15.1
15.1
15.6
14.4
14.9
14.9
15.4
1315
.115
.615
.616
.114
.915
.415
.416
.014
.715
.215
.215
.714
.515
.015
.015
.514
15.2
15.7
15.7
16.2
15.0
15.5
15.5
16.1
14.8
15.3
15.3
15.8
14.6
15.1
15.1
15.6
1515
.315
.815
.816
.415
.115
.715
.716
.214
.915
.415
.415
.914
.615
.115
.115
.716
15.4
16.0
16.0
16.5
15.3
15.8
15.8
16.3
15.0
15.5
15.5
16.0
14.7
15.2
15.2
15.7
1715
.616
.116
.116
.615
.415
.915
.916
.415
.115
.615
.616
.114
.815
.315
.315
.818
15.7
16.2
16.2
16.7
15.5
16.0
16.0
16.5
15.2
15.7
15.7
16.2
14.9
15.4
15.4
15.9
1915
.816
.316
.316
.815
.616
.116
.116
.615
.315
.815
.816
.315
.015
.515
.516
.020
15.9
16.4
16.4
17.0
15.7
16.2
16.2
16.7
15.4
15.9
15.9
16.4
15.0
15.5
15.5
16.1
2116
.116
.616
.617
.115
.816
.316
.316
.815
.516
.016
.016
.515
.115
.615
.616
.122
16.2
16.7
16.7
17.2
15.9
16.4
16.4
16.9
15.6
16.1
16.1
16.6
15.2
15.7
15.7
16.2
2316
.316
.816
.817
.316
.016
.516
.517
.015
.716
.216
.216
.715
.315
.815
.816
.324
16.4
16.9
16.9
17.4
16.1
16.6
16.6
17.2
15.8
16.3
16.3
16.8
15.4
15.9
15.9
16.4
2516
.517
.017
.017
.516
.216
.816
.817
.315
.916
.416
.416
.915
.516
.016
.016
.526
16.6
17.2
17.2
17.7
16.4
16.9
16.9
17.4
16.0
16.5
16.5
17.0
15.5
16.0
16.0
16.5
2716
.817
.317
.317
.816
.517
.017
.017
.516
.016
.616
.617
.115
.616
.116
.116
.628
16.9
17.4
17.4
17.9
16.6
17.1
17.1
17.6
16.1
16.6
16.6
17.2
15.7
16.2
16.2
16.7
2917
.017
.517
.518
.016
.717
.217
.217
.716
.216
.716
.717
.215
.816
.316
.316
.830
17.0
17.5
17.5
18.0
16.7
17.2
17.2
17.7
16.2
16.7
16.7
17.2
15.8
16.3
16.3
16.8
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 96
"
Height of Backfill H Above Top of Pipe, Feet
Tables 139
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 32
515
.215
.915
.916
.515
.215
.815
.816
.415
.115
.715
.716
.315
.015
.615
.616
.26
15.3
15.9
15.9
16.5
15.2
15.8
15.8
16.4
15.1
15.7
15.7
16.3
15.0
15.6
15.6
16.2
715
.315
.915
.916
.515
.215
.815
.816
.415
.115
.715
.716
.315
.015
.615
.616
.28
15.4
16.0
16.0
16.6
15.3
15.9
15.9
16.4
15.2
15.7
15.7
16.3
15.0
15.6
15.6
16.2
915
.516
.116
.116
.615
.415
.915
.916
.515
.215
.815
.816
.315
.115
.615
.616
.210
15.6
16.2
16.2
16.7
15.5
16.0
16.0
16.6
15.3
15.9
15.9
16.4
15.1
15.7
15.7
16.2
1115
.716
.316
.316
.815
.616
.116
.116
.715
.415
.915
.916
.515
.215
.715
.716
.312
15.8
16.4
16.4
16.9
15.7
16.2
16.2
16.8
15.5
16.0
16.0
16.6
15.2
15.8
15.8
16.3
1315
.916
.516
.517
.015
.816
.316
.316
.915
.516
.116
.116
.615
.315
.915
.916
.414
16.1
16.6
16.6
17.2
15.9
16.4
16.4
17.0
15.6
16.2
16.2
16.7
15.4
15.9
15.9
16.5
1516
.216
.716
.717
.316
.016
.516
.517
.115
.716
.316
.316
.815
.516
.016
.016
.616
16.3
16.8
16.8
17.4
16.1
16.6
16.6
17.2
15.8
16.4
16.4
16.9
15.6
16.1
16.1
16.6
1716
.417
.017
.017
.516
.216
.716
.717
.315
.916
.516
.517
.015
.616
.216
.216
.718
16.5
17.1
17.1
17.6
16.3
16.9
16.9
17.4
16.0
16.6
16.6
17.1
15.7
16.3
16.3
16.8
1916
.717
.217
.217
.716
.417
.017
.017
.516
.116
.716
.717
.215
.816
.316
.316
.920
16.8
17.3
17.3
17.9
16.5
17.1
17.1
17.6
16.2
16.8
16.8
17.3
15.9
16.4
16.4
17.0
2116
.917
.417
.418
.016
.617
.217
.217
.716
.316
.816
.817
.416
.016
.516
.517
.022
17.0
17.6
17.6
18.1
16.8
17.3
17.3
17.8
16.4
16.9
16.9
17.5
16.0
16.6
16.6
17.1
2317
.117
.717
.718
.216
.917
.417
.417
.916
.517
.017
.017
.616
.116
.716
.717
.224
17.3
17.8
17.8
18.3
17.0
17.5
17.5
18.1
16.6
17.1
17.1
17.7
16.2
16.7
16.7
17.3
2517
.417
.917
.918
.517
.117
.617
.618
.216
.717
.217
.217
.816
.316
.816
.817
.426
17.5
18.0
18.0
18.6
17.2
17.7
17.7
18.3
16.8
17.3
17.3
17.9
16.4
16.9
16.9
17.4
2717
.618
.218
.218
.717
.317
.817
.818
.416
.917
.417
.418
.016
.517
.017
.017
.528
17.7
18.3
18.3
18.8
17.4
18.0
18.0
18.5
17.0
17.5
17.5
18.1
16.5
17.1
17.1
17.6
2917
.818
.418
.418
.917
.518
.118
.118
.617
.117
.617
.618
.216
.617
.217
.217
.730
17.8
18.4
18.4
18.9
17.5
18.1
18.1
18.6
17.1
17.6
17.6
18.2
16.6
17.2
17.2
17.7
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 10
2"
Height of Backfill H Above Top of Pipe, Feet
140 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 33
516
.116
.816
.817
.416
.116
.716
.717
.416
.016
.616
.617
.315
.916
.516
.517
.26
16.1
16.8
16.8
17.4
16.1
16.7
16.7
17.4
16.0
16.6
16.6
17.3
15.9
16.5
16.5
17.2
716
.216
.816
.817
.416
.116
.716
.717
.416
.016
.616
.617
.315
.916
.516
.517
.28
16.3
16.9
16.9
17.5
16.2
16.8
16.8
17.4
16.0
16.6
16.6
17.3
15.9
16.5
16.5
17.2
916
.417
.017
.017
.616
.216
.816
.817
.416
.116
.716
.717
.315
.916
.516
.517
.210
16.5
17.1
17.1
17.7
16.3
16.9
16.9
17.5
16.1
16.7
16.7
17.3
16.0
16.6
16.6
17.2
1116
.617
.217
.217
.716
.417
.017
.017
.616
.216
.816
.817
.416
.016
.616
.617
.212
16.7
17.3
17.3
17.8
16.5
17.1
17.1
17.7
16.3
16.9
16.9
17.5
16.1
16.7
16.7
17.3
1316
.817
.417
.418
.016
.617
.217
.217
.816
.417
.017
.017
.616
.216
.716
.717
.314
16.9
17.5
17.5
18.1
16.7
17.3
17.3
17.9
16.5
17.1
17.1
17.6
16.2
16.8
16.8
17.4
1517
.017
.617
.618
.216
.817
.417
.418
.016
.617
.217
.217
.716
.316
.916
.917
.516
17.1
17.7
17.7
18.3
16.9
17.5
17.5
18.1
16.7
17.2
17.2
17.8
16.4
17.0
17.0
17.5
1717
.317
.817
.818
.417
.017
.617
.618
.216
.817
.317
.317
.916
.517
.017
.017
.618
17.4
18.0
18.0
18.5
17.2
17.7
17.7
18.3
16.9
17.4
17.4
18.0
16.6
17.1
17.1
17.7
1917
.518
.118
.118
.617
.317
.817
.818
.417
.017
.517
.518
.116
.617
.217
.217
.820
17.6
18.2
18.2
18.8
17.4
18.0
18.0
18.5
17.1
17.6
17.6
18.2
16.7
17.3
17.3
17.9
2117
.718
.318
.318
.917
.518
.118
.118
.617
.117
.717
.718
.316
.817
.417
.417
.922
17.9
18.4
18.4
19.0
17.6
18.2
18.2
18.7
17.2
17.8
17.8
18.4
16.9
17.4
17.4
18.0
2318
.018
.618
.619
.117
.718
.318
.318
.917
.317
.917
.918
.517
.017
.517
.518
.124
18.1
18.7
18.7
19.2
17.8
18.4
18.4
19.0
17.4
18.0
18.0
18.6
17.0
17.6
17.6
18.2
2518
.218
.818
.819
.417
.918
.518
.519
.117
.518
.118
.118
.717
.117
.717
.718
.326
18.3
18.9
18.9
19.5
18.0
18.6
18.6
19.2
17.6
18.2
18.2
18.8
17.2
17.8
17.8
18.3
2718
.519
.019
.019
.618
.118
.718
.719
.317
.718
.318
.318
.917
.317
.917
.918
.428
18.6
19.1
19.1
19.7
18.3
18.8
18.8
19.4
17.8
18.4
18.4
19.0
17.4
17.9
17.9
18.5
2918
.719
.319
.319
.818
.418
.918
.919
.517
.918
.518
.519
.117
.518
.018
.018
.630
18.7
19.3
19.3
19.8
18.4
18.9
18.9
19.5
17.9
18.5
18.5
19.1
17.5
18.0
18.0
18.6
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 10
8"
Height of Backfill H Above Top of Pipe, Feet
Tables 141
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 34
517
.017
.717
.718
.417
.017
.717
.718
.416
.917
.617
.618
.316
.817
.517
.518
.26
17.0
17.7
17.7
18.4
17.0
17.7
17.7
18.4
16.9
17.6
17.6
18.3
16.8
17.5
17.5
18.2
717
.117
.717
.718
.417
.017
.717
.718
.416
.917
.617
.618
.316
.817
.517
.518
.28
17.1
17.8
17.8
18.4
17.0
17.7
17.7
18.4
16.9
17.6
17.6
18.3
16.8
17.5
17.5
18.2
917
.217
.917
.918
.517
.117
.717
.718
.416
.917
.617
.618
.316
.817
.517
.518
.210
17.3
17.9
17.9
18.6
17.2
17.8
17.8
18.4
17.0
17.6
17.6
18.3
16.8
17.5
17.5
18.2
1117
.418
.018
.018
.717
.317
.917
.918
.517
.117
.717
.718
.316
.917
.517
.518
.212
17.5
18.1
18.1
18.8
17.4
18.0
18.0
18.6
17.2
17.8
17.8
18.4
16.9
17.6
17.6
18.2
1317
.618
.318
.318
.917
.518
.118
.118
.717
.217
.917
.918
.517
.017
.617
.618
.214
17.7
18.4
18.4
19.0
17.6
18.2
18.2
18.8
17.3
17.9
17.9
18.6
17.1
17.7
17.7
18.3
1517
.918
.518
.519
.117
.718
.318
.318
.917
.418
.018
.018
.617
.217
.817
.818
.416
18.0
18.6
18.6
19.2
17.8
18.4
18.4
19.0
17.5
18.1
18.1
18.7
17.2
17.8
17.8
18.4
1718
.118
.718
.719
.317
.918
.518
.519
.117
.618
.218
.218
.817
.317
.917
.918
.518
18.2
18.8
18.8
19.4
18.0
18.6
18.6
19.2
17.7
18.3
18.3
18.9
17.4
18.0
18.0
18.6
1918
.319
.019
.019
.618
.118
.718
.719
.317
.818
.418
.419
.017
.518
.118
.118
.720
18.5
19.1
19.1
19.7
18.2
18.8
18.8
19.4
17.9
18.5
18.5
19.1
17.6
18.2
18.2
18.8
2118
.619
.219
.219
.818
.318
.918
.919
.518
.018
.618
.619
.217
.618
.218
.218
.822
18.7
19.3
19.3
19.9
18.4
19.0
19.0
19.6
18.1
18.7
18.7
19.3
17.7
18.3
18.3
18.9
2318
.819
.419
.420
.018
.619
.219
.219
.818
.218
.818
.819
.417
.818
.418
.419
.024
18.9
19.5
19.5
20.2
18.7
19.3
19.3
19.9
18.3
18.9
18.9
19.5
17.9
18.5
18.5
19.1
2519
.119
.719
.720
.318
.819
.419
.420
.018
.419
.019
.019
.618
.018
.618
.619
.226
19.2
19.8
19.8
20.4
18.9
19.5
19.5
20.1
18.5
19.1
19.1
19.7
18.0
18.6
18.6
19.2
2719
.319
.919
.920
.519
.019
.619
.620
.218
.619
.219
.219
.818
.118
.718
.719
.328
19.4
20.0
20.0
20.6
19.1
19.7
19.7
20.3
18.7
19.3
19.3
19.9
18.2
18.8
18.8
19.4
2919
.520
.120
.120
.719
.219
.819
.820
.418
.819
.419
.420
.018
.318
.918
.919
.530
19.5
20.1
20.1
20.7
19.2
19.8
19.8
20.4
18.8
19.4
19.4
20.0
18.3
18.9
18.9
19.5
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 11
4"
Height of Backfill H Above Top of Pipe, Feet
142 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 35
517
.818
.618
.619
.317
.818
.518
.519
.317
.718
.418
.419
.217
.618
.318
.319
.16
17.8
18.6
18.6
19.3
17.8
18.5
18.5
19.3
17.7
18.4
18.4
19.2
17.6
18.3
18.3
19.1
717
.818
.618
.619
.317
.818
.518
.519
.317
.718
.418
.419
.217
.618
.318
.319
.18
17.9
18.6
18.6
19.3
17.8
18.5
18.5
19.3
17.7
18.4
18.4
19.2
17.6
18.3
18.3
19.1
918
.018
.718
.719
.317
.918
.518
.519
.317
.718
.418
.419
.217
.618
.318
.319
.110
18.1
18.7
18.7
19.4
17.9
18.6
18.6
19.3
17.8
18.4
18.4
19.2
17.6
18.3
18.3
19.1
1118
.218
.818
.819
.518
.018
.718
.719
.317
.818
.518
.519
.217
.618
.318
.319
.112
18.3
18.9
18.9
19.6
18.1
18.8
18.8
19.4
17.9
18.6
18.6
19.2
17.7
18.3
18.3
19.1
1318
.419
.019
.019
.718
.218
.918
.919
.518
.018
.618
.619
.317
.818
.418
.419
.114
18.5
19.1
19.1
19.8
18.3
19.0
19.0
19.6
18.1
18.7
18.7
19.4
17.8
18.5
18.5
19.1
1518
.619
.319
.319
.918
.419
.119
.119
.718
.218
.818
.819
.517
.918
.518
.519
.216
18.7
19.4
19.4
20.0
18.5
19.2
19.2
19.8
18.3
18.9
18.9
19.5
18.0
18.6
18.6
19.3
1718
.819
.519
.520
.118
.619
.319
.319
.918
.319
.019
.019
.618
.018
.718
.719
.318
19.0
19.6
19.6
20.3
18.7
19.4
19.4
20.0
18.4
19.1
19.1
19.7
18.1
18.8
18.8
19.4
1919
.119
.719
.720
.418
.919
.519
.520
.118
.519
.219
.219
.818
.218
.818
.819
.520
19.2
19.8
19.8
20.5
19.0
19.6
19.6
20.2
18.6
19.3
19.3
19.9
18.3
18.9
18.9
19.6
2119
.320
.020
.020
.619
.119
.719
.720
.318
.719
.419
.420
.018
.419
.019
.019
.622
19.4
20.1
20.1
20.7
19.2
19.8
19.8
20.5
18.8
19.5
19.5
20.1
18.5
19.1
19.1
19.7
2319
.620
.220
.220
.819
.319
.919
.920
.618
.919
.619
.620
.218
.519
.219
.219
.824
19.7
20.3
20.3
21.0
19.4
20.0
20.0
20.7
19.0
19.6
19.6
20.3
18.6
19.2
19.2
19.9
2519
.820
.420
.421
.119
.520
.120
.120
.819
.119
.719
.720
.418
.719
.319
.320
.026
19.9
20.6
20.6
21.2
19.6
20.3
20.3
20.9
19.2
19.8
19.8
20.5
18.8
19.4
19.4
20.0
2720
.020
.720
.721
.319
.720
.420
.421
.019
.319
.919
.920
.618
.919
.519
.520
.128
20.2
20.8
20.8
21.4
19.8
20.5
20.5
21.1
19.4
20.0
20.0
20.7
19.0
19.6
19.6
20.2
2920
.320
.920
.921
.620
.020
.620
.621
.219
.520
.120
.120
.819
.019
.719
.720
.330
20.3
20.9
20.9
21.6
20.0
20.6
20.6
21.2
19.5
20.1
20.1
20.8
19.0
19.7
19.7
20.3
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 12
0"
Height of Backfill H Above Top of Pipe, Feet
Tables 143
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 36
518
.819
.519
.520
.318
.719
.519
.520
.318
.619
.419
.420
.218
.519
.319
.320
.16
18.8
19.5
19.5
20.3
18.7
19.5
19.5
20.3
18.6
19.4
19.4
20.2
18.5
19.3
19.3
20.1
718
.819
.519
.520
.318
.719
.519
.520
.318
.619
.419
.420
.218
.519
.319
.320
.18
18.8
19.5
19.5
20.3
18.7
19.5
19.5
20.3
18.6
19.4
19.4
20.2
18.5
19.3
19.3
20.1
918
.819
.619
.620
.318
.719
.519
.520
.318
.619
.419
.420
.218
.519
.319
.320
.110
18.9
19.6
19.6
20.3
18.8
19.5
19.5
20.3
18.6
19.4
19.4
20.2
18.5
19.3
19.3
20.1
1119
.019
.719
.720
.418
.919
.619
.620
.318
.719
.419
.420
.218
.519
.319
.320
.112
19.1
19.8
19.8
20.5
19.0
19.7
19.7
20.4
18.8
19.4
19.4
20.2
18.5
19.3
19.3
20.1
1319
.219
.919
.920
.619
.119
.819
.820
.418
.819
.519
.520
.218
.619
.319
.320
.114
19.3
20.0
20.0
20.7
19.2
19.8
19.8
20.5
18.9
19.6
19.6
20.3
18.7
19.4
19.4
20.1
1519
.520
.120
.120
.819
.319
.919
.920
.619
.019
.719
.720
.418
.719
.419
.420
.116
19.6
20.3
20.3
20.9
19.4
20.0
20.0
20.7
19.1
19.8
19.8
20.4
18.8
19.5
19.5
20.2
1719
.720
.420
.421
.019
.520
.220
.220
.819
.219
.919
.920
.518
.919
.619
.620
.218
19.8
20.5
20.5
21.2
19.6
20.3
20.3
20.9
19.3
20.0
20.0
20.6
19.0
19.6
19.6
20.3
1919
.920
.620
.621
.319
.720
.420
.421
.019
.420
.020
.020
.719
.019
.719
.720
.420
20.1
20.7
20.7
21.4
19.8
20.5
20.5
21.1
19.5
20.1
20.1
20.8
19.1
19.8
19.8
20.5
2120
.220
.820
.821
.519
.920
.620
.621
.319
.620
.220
.220
.919
.219
.919
.920
.522
20.3
21.0
21.0
21.6
20.0
20.7
20.7
21.4
19.7
20.3
20.3
21.0
19.3
20.0
20.0
20.6
2320
.421
.121
.121
.820
.120
.820
.821
.519
.820
.420
.421
.119
.420
.020
.020
.724
20.5
21.2
21.2
21.9
20.2
20.9
20.9
21.6
19.9
20.5
20.5
21.2
19.5
20.1
20.1
20.8
2520
.721
.321
.322
.020
.421
.021
.021
.720
.020
.620
.621
.319
.520
.220
.220
.926
20.8
21.4
21.4
22.1
20.5
21.1
21.1
21.8
20.0
20.7
20.7
21.4
19.6
20.3
20.3
20.9
2720
.921
.621
.622
.220
.621
.221
.221
.920
.120
.820
.821
.519
.720
.420
.421
.028
21.0
21.7
21.7
22.3
20.7
21.4
21.4
22.0
20.2
20.9
20.9
21.6
19.8
20.4
20.4
21.1
2921
.121
.821
.822
.520
.821
.521
.522
.120
.321
.021
.021
.719
.920
.520
.521
.230
21.1
21.8
21.8
22.5
20.8
21.5
21.5
22.1
20.3
21.0
21.0
21.7
19.9
20.5
20.5
21.2
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 12
6"
Height of Backfill H Above Top of Pipe, Feet
144 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 37
519
.720
.520
.521
.319
.620
.420
.421
.319
.520
.320
.321
.319
.420
.220
.221
.16
19.7
20.5
20.5
21.3
19.6
20.4
20.4
21.3
19.5
20.3
20.3
21.2
19.4
20.2
20.2
21.1
719
.720
.520
.521
.319
.620
.420
.421
.319
.520
.320
.321
.219
.420
.220
.221
.18
19.7
20.5
20.5
21.3
19.6
20.4
20.4
21.3
19.5
20.3
20.3
21.2
19.4
20.2
20.2
21.1
919
.720
.520
.521
.319
.620
.420
.421
.319
.520
.320
.321
.219
.420
.220
.221
.110
19.8
20.5
20.5
21.3
19.7
20.4
20.4
21.3
19.5
20.3
20.3
21.2
19.4
20.2
20.2
21.1
1119
.920
.620
.621
.419
.720
.520
.521
.319
.520
.320
.321
.219
.420
.220
.221
.112
20.0
20.7
20.7
21.4
19.8
20.6
20.6
21.3
19.6
20.3
20.3
21.2
19.4
20.2
20.2
21.1
1320
.120
.820
.821
.519
.920
.620
.621
.419
.720
.420
.421
.219
.520
.220
.221
.114
20.2
20.9
20.9
21.6
20.0
20.7
20.7
21.5
19.8
20.5
20.5
21.2
19.5
20.2
20.2
21.1
1520
.321
.021
.021
.720
.120
.820
.821
.519
.920
.620
.621
.319
.620
.320
.321
.116
20.4
21.1
21.1
21.8
20.2
20.9
20.9
21.6
19.9
20.7
20.7
21.4
19.7
20.4
20.4
21.1
1720
.521
.221
.222
.020
.321
.021
.021
.720
.020
.720
.721
.419
.720
.420
.421
.118
20.7
21.4
21.4
22.1
20.4
21.1
21.1
21.8
20.1
20.8
20.8
21.5
19.8
20.5
20.5
21.2
1920
.821
.521
.522
.220
.521
.221
.221
.920
.220
.920
.921
.619
.920
.620
.621
.320
20.9
21.6
21.6
22.3
20.6
21.3
21.3
22.1
20.3
21.0
21.0
21.7
20.0
20.7
20.7
21.4
2121
.021
.721
.722
.420
.821
.521
.522
.220
.421
.121
.121
.820
.020
.720
.721
.422
21.1
21.8
21.8
22.5
20.9
21.6
21.6
22.3
20.5
21.2
21.2
21.9
20.1
20.8
20.8
21.5
2321
.322
.022
.022
.721
.021
.721
.722
.420
.621
.321
.322
.020
.220
.920
.921
.624
21.4
22.1
22.1
22.8
21.1
21.8
21.8
22.5
20.7
21.4
21.4
22.1
20.3
21.0
21.0
21.7
2521
.522
.222
.222
.921
.221
.921
.922
.620
.821
.521
.522
.220
.421
.121
.121
.826
21.6
22.3
22.3
23.0
21.3
22.0
22.0
22.7
20.9
21.6
21.6
22.3
20.5
21.1
21.1
21.8
2721
.722
.422
.423
.121
.422
.122
.122
.821
.021
.721
.722
.420
.521
.221
.221
.928
21.9
22.6
22.6
23.3
21.5
22.2
22.2
22.9
21.1
21.8
21.8
22.5
20.6
21.3
21.3
22.0
2922
.022
.722
.723
.421
.622
.322
.323
.021
.221
.921
.922
.620
.721
.421
.422
.130
22.0
22.7
22.7
23.4
21.6
22.3
22.3
23.0
21.2
21.9
21.9
22.6
20.7
21.4
21.4
22.1
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 13
2"
Height of Backfill H Above Top of Pipe, Feet
Tables 145
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 38
520
.621
.521
.522
.320
.521
.421
.422
.320
.421
.321
.322
.220
.321
.221
.221
.16
20.6
21.5
21.5
22.3
20.5
21.4
21.4
22.3
20.4
21.3
21.3
22.2
20.3
21.2
21.2
22.1
720
.621
.521
.522
.320
.521
.421
.422
.320
.421
.321
.322
.220
.321
.221
.222
.18
20.6
21.5
21.5
22.3
20.5
21.4
21.4
22.3
20.4
21.3
21.3
22.2
20.3
21.2
21.2
22.1
920
.621
.521
.522
.320
.521
.421
.422
.320
.421
.321
.322
.220
.321
.221
.222
.110
20.7
21.5
21.5
22.3
20.5
21.4
21.4
22.3
20.4
21.3
21.3
22.2
20.3
21.2
21.2
22.1
1120
.721
.521
.522
.320
.621
.421
.422
.320
.421
.321
.322
.220
.321
.221
.222
.112
20.8
21.6
21.6
22.4
20.7
21.4
21.4
22.3
20.5
21.3
21.3
22.2
20.3
21.2
21.2
22.1
1320
.921
.721
.722
.520
.821
.521
.522
.320
.521
.321
.322
.220
.321
.221
.222
.114
21.0
21.8
21.8
22.6
20.9
21.6
21.6
22.4
20.6
21.4
21.4
22.2
20.4
21.2
21.2
22.1
1521
.221
.921
.922
.721
.021
.721
.722
.520
.721
.421
.422
.220
.421
.221
.222
.116
21.3
22.0
22.0
22.8
21.1
21.8
21.8
22.6
20.8
21.5
21.5
22.3
20.5
21.2
21.2
22.1
1721
.422
.122
.122
.921
.221
.921
.922
.720
.921
.621
.622
.420
.621
.321
.322
.118
21.5
22.2
22.2
23.0
21.3
22.0
22.0
22.8
21.0
21.7
21.7
22.4
20.6
21.4
21.4
22.1
1921
.622
.422
.423
.121
.422
.122
.122
.921
.121
.821
.822
.520
.721
.521
.522
.220
21.7
22.5
22.5
23.2
21.5
22.2
22.2
23.0
21.1
21.9
21.9
22.6
20.8
21.5
21.5
22.3
2121
.922
.622
.623
.321
.622
.322
.323
.121
.222
.022
.022
.720
.921
.621
.622
.322
22.0
22.7
22.7
23.4
21.7
22.4
22.4
23.2
21.3
22.1
22.1
22.8
21.0
21.7
21.7
22.4
2322
.122
.822
.823
.621
.822
.622
.623
.321
.422
.222
.222
.921
.021
.821
.822
.524
22.2
23.0
23.0
23.7
21.9
22.7
22.7
23.4
21.5
22.3
22.3
23.0
21.1
21.9
21.9
22.6
2522
.323
.123
.123
.822
.022
.822
.823
.521
.622
.422
.423
.121
.221
.921
.922
.726
22.5
23.2
23.2
23.9
22.1
22.9
22.9
23.6
21.7
22.5
22.5
23.2
21.3
22.0
22.0
22.7
2722
.623
.323
.324
.022
.323
.023
.023
.721
.822
.522
.523
.321
.422
.122
.122
.828
22.7
23.4
23.4
24.2
22.4
23.1
23.1
23.8
21.9
22.6
22.6
23.4
21.5
22.2
22.2
22.9
2922
.823
.623
.624
.322
.523
.223
.223
.922
.022
.722
.723
.521
.522
.322
.323
.030
22.8
23.6
23.6
24.3
22.5
23.2
23.2
23.9
22.0
22.7
22.7
23.5
21.5
22.3
22.3
23.0
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 13
8"
Height of Backfill H Above Top of Pipe, Feet
146 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 39
521
.522
.422
.423
.421
.422
.422
.423
.321
.422
.322
.323
.221
.322
.222
.223
.16
21.5
22.4
22.4
23.4
21.4
22.4
22.4
23.3
21.4
22.3
22.3
23.2
21.3
22.2
22.2
23.1
721
.522
.422
.423
.421
.422
.422
.423
.321
.422
.322
.323
.221
.322
.222
.223
.18
21.5
22.4
22.4
23.4
21.4
22.4
22.4
23.3
21.4
22.3
22.3
23.2
21.3
22.2
22.2
23.1
921
.522
.422
.423
.421
.422
.422
.423
.321
.422
.322
.323
.221
.322
.222
.223
.110
21.5
22.4
22.4
23.4
21.4
22.4
22.4
23.3
21.4
22.3
22.3
23.2
21.3
22.2
22.2
23.1
1121
.622
.422
.423
.421
.522
.422
.423
.321
.422
.322
.323
.221
.322
.222
.223
.112
21.7
22.5
22.5
23.4
21.5
22.4
22.4
23.3
21.4
22.3
22.3
23.2
21.3
22.2
22.2
23.1
1321
.822
.622
.623
.421
.622
.422
.423
.321
.422
.322
.323
.221
.322
.222
.223
.114
21.9
22.7
22.7
23.5
21.7
22.5
22.5
23.3
21.5
22.3
22.3
23.2
21.3
22.2
22.2
23.1
1522
.022
.822
.823
.621
.822
.622
.623
.421
.522
.322
.323
.221
.322
.222
.223
.116
22.1
22.9
22.9
23.7
21.9
22.7
22.7
23.5
21.6
22.4
22.4
23.2
21.3
22.2
22.2
23.1
1722
.223
.023
.023
.822
.022
.822
.823
.621
.722
.522
.523
.321
.422
.222
.223
.118
22.3
23.1
23.1
23.9
22.1
22.9
22.9
23.7
21.8
22.6
22.6
23.4
21.5
22.3
22.3
23.1
1922
.523
.223
.224
.022
.223
.023
.023
.821
.922
.722
.723
.421
.622
.322
.323
.120
22.6
23.4
23.4
24.1
22.3
23.1
23.1
23.9
22.0
22.8
22.8
23.5
21.6
22.4
22.4
23.2
2122
.723
.523
.524
.222
.423
.223
.224
.022
.122
.922
.923
.621
.722
.522
.523
.322
22.8
23.6
23.6
24.4
22.6
23.3
23.3
24.1
22.2
22.9
22.9
23.7
21.8
22.6
22.6
23.3
2322
.923
.723
.724
.522
.723
.423
.424
.222
.323
.023
.023
.821
.922
.622
.623
.424
23.1
23.8
23.8
24.6
22.8
23.5
23.5
24.3
22.4
23.1
23.1
23.9
22.0
22.7
22.7
23.5
2523
.223
.923
.924
.722
.923
.623
.624
.422
.523
.223
.224
.022
.022
.822
.823
.626
23.3
24.1
24.1
24.8
23.0
23.8
23.8
24.5
22.6
23.3
23.3
24.1
22.1
22.9
22.9
23.6
2723
.424
.224
.225
.023
.123
.923
.924
.622
.723
.423
.424
.222
.223
.023
.023
.728
23.5
24.3
24.3
25.1
23.2
24.0
24.0
24.7
22.8
23.5
23.5
24.3
22.3
23.0
23.0
23.8
2923
.724
.424
.425
.223
.324
.124
.124
.822
.923
.623
.624
.422
.423
.123
.123
.930
23.7
24.4
24.4
25.2
23.3
24.1
24.1
24.8
22.9
23.6
23.6
24.4
22.4
23.1
23.1
23.9
Tran
siti
on
Wid
ths
(FT
)
Ku’
= 0
.165
Ku’
= 0
.150
Ku’
= 0
.130
Ku’
= 0
.110
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Type
1Ty
pe 2
Type
3Ty
pe 4
Pip
e S
ize
= 14
4"
Height of Backfill H Above Top of Pipe, Feet
Tables 147
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 40
Table 41
148 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 42
Tables 149
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 43
150 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 44
Tables 151
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 45
152 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 46
Tables 153
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 47
154 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 48
Tables 155
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 49
156 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 50
Tables 157
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 51
158 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 52
Tables 159
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 53
160 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 54
Tables 161
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 55
162 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 56
Tables 163
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 57
164 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 58
Tables 165
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 59
166 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 60
Tables 167
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 61
168 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 62
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 1
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
12
34
56
78
910
1112
1314
15
1211
2560
042
537
537
540
040
047
550
055
057
562
567
572
575
0
1510
5057
540
037
537
540
042
545
050
052
557
562
565
070
075
0
1810
0055
040
037
537
540
042
545
050
052
557
560
065
070
075
0
2195
052
537
535
037
540
042
545
047
552
557
560
065
070
075
0
2492
552
537
535
037
540
042
545
047
552
557
562
565
070
075
0
2787
550
037
535
037
540
042
545
050
052
557
562
567
570
075
0
3082
550
037
535
037
540
042
545
050
052
557
562
567
572
577
5
3377
547
537
535
037
540
042
545
050
052
557
562
567
572
577
5
3675
047
535
035
037
540
042
545
050
055
060
062
567
572
577
5
4265
047
535
035
037
540
042
545
050
055
060
065
067
572
577
5
4860
045
035
035
037
540
042
545
050
055
060
065
070
075
080
0
5457
540
035
035
037
540
042
547
550
055
060
065
070
075
080
0
6055
040
035
035
037
540
042
547
550
055
060
065
070
075
080
0
6652
537
532
535
037
540
042
547
552
557
562
565
070
075
080
0
7252
537
532
535
037
540
042
547
552
557
562
567
572
577
582
5
7847
537
532
535
037
542
545
047
552
557
562
567
572
577
582
5
8445
037
532
535
037
542
545
047
552
557
562
567
572
577
582
5
9040
037
532
535
037
542
545
050
052
560
062
567
572
577
582
5
9637
537
532
535
037
542
545
050
055
060
065
070
075
080
085
0
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
Tables 169
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 63
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 1
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
1617
1819
2021
2223
2425
2627
2829
30
1280
085
090
095
010
0010
5011
0011
5012
0012
5013
0013
5014
0014
5015
00
1580
085
090
095
097
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
75
1880
085
090
092
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
75
2180
085
090
092
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
50
2480
085
090
095
097
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
75
2780
085
090
095
010
0010
2510
7511
2511
7512
2512
7513
2513
7514
2514
75
3080
085
090
095
010
0010
5011
0011
5012
0012
5013
0013
2513
7514
2514
75
3380
085
090
095
010
0010
5011
0011
5012
0012
5013
0013
5014
0014
5015
00
3682
587
592
597
510
2510
5011
0011
5012
0012
5013
0013
5014
0014
5015
00
4282
587
592
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
7515
25
4882
587
592
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
7515
25
5482
587
592
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
7515
25
6085
090
095
010
0010
5011
0011
5012
0012
5013
0013
5014
0014
5015
0015
50
6685
090
095
010
0010
5011
0011
5012
0012
5013
0013
5014
0014
5015
0015
50
7285
092
595
010
0010
5011
0011
5012
0012
5013
0013
7514
2514
7515
2515
75
7887
592
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
7515
2515
75
8487
592
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
7515
2515
75
9087
592
597
510
2510
7511
2511
7512
2512
7513
2513
7514
2514
7515
2516
00
9687
592
597
510
2510
7511
2511
7512
5013
0013
5014
0014
5015
0015
5016
00
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
170 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 64
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 1
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
3132
3334
3536
3738
3940
4142
4344
45
12
1550
1600
1650
1700
1725
1775
1825
1875
1925
1975
2025
2075
2125
2175
2225
1515
2515
7516
2516
7517
2517
5018
0018
5019
0019
5020
0020
5021
0021
5022
00
1815
0015
5016
0016
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
5022
00
2115
0015
5016
0016
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
5021
75
2415
2515
7516
0016
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
5022
00
2715
2515
7516
2516
7517
2517
7518
2518
7519
0019
5020
0020
5021
0021
5022
00
3015
2515
7516
2516
7517
2517
7518
2518
7519
2519
7520
2520
7521
2521
7522
25
3315
5016
0016
5017
0017
5018
0018
5019
0019
5019
7520
2520
7521
2521
7522
25
3615
5016
0016
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
5022
0022
50
4215
7516
2516
7517
0017
5018
0018
5019
0019
5020
0020
5021
0021
5022
0022
50
4815
7516
2516
7517
2517
7518
2518
7519
2519
7520
2520
7521
2521
7522
2522
75
5415
7516
2516
7517
2517
7518
2518
7519
2519
7520
2520
7521
2521
7522
2522
75
6016
0016
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
5022
0022
5023
00
6616
0016
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
5022
0022
5023
25
7216
2516
7517
2517
7518
2518
7519
2519
7520
2520
7521
2521
7522
2522
7523
25
7816
2516
7517
2517
7518
2518
7519
2519
7520
2520
7521
2521
7522
2523
0023
50
8416
2516
7517
2517
7518
2519
0019
5020
0020
5021
0021
5022
0022
5023
0023
50
9016
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
5022
0022
5023
0023
50
9616
5017
0017
5018
0018
5019
0019
5020
0020
5021
0021
7522
2522
7523
2523
75
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
Tables 171
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 65
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 1
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
4647
4849
5051
5253
5455
5657
5859
60
1222
7523
2523
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
2529
75
1522
5023
0023
5024
0024
5025
0025
5026
0026
5027
0027
2527
7528
2528
7529
25
1822
2522
7523
2523
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
25
2122
2522
7523
2523
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
25
2422
5023
0023
5023
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
25
2722
5023
0023
5024
0024
5025
0025
5026
0026
5027
0027
5027
7528
2528
7529
25
3022
7523
2523
7524
2524
5025
0025
5026
0026
5027
0027
5028
0028
5029
0029
50
3322
7523
2523
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
2529
75
3623
0023
5024
0024
5025
0025
5026
0026
5027
0027
5028
0028
5029
0029
5030
00
4223
0023
5024
0024
5025
0025
5026
0026
5027
0027
5028
0028
5029
0029
5030
00
4823
2523
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
2529
7530
25
5423
2523
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
2529
7530
25
6023
5024
0024
5025
0025
5026
0026
5027
0027
5028
0028
5029
0029
5030
0030
50
6623
7524
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
2529
7530
2530
75
7223
7524
2524
7525
2525
7526
2526
7527
5028
0028
5029
0029
5030
0030
5031
00
7824
0024
5025
0025
5026
0026
5027
0027
5028
0028
5029
0029
5030
0030
5031
00
8424
0024
5025
0025
5026
0026
5027
0027
5028
0028
5029
0029
7530
2530
7531
25
9024
0024
5025
2525
7526
2526
7527
2527
7528
2528
7529
2529
7530
2530
7531
25
9624
2524
7525
2525
7526
2526
7527
2527
7528
2528
7529
2529
7530
5031
0031
50
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
172 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 66
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 2
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
12
34
56
78
910
1112
1314
15
1211
5065
047
547
550
052
557
565
070
075
082
590
095
010
2511
00
1510
7562
547
545
047
552
557
562
570
075
082
587
595
010
2510
75
1810
2560
045
045
047
552
557
562
570
075
082
587
595
010
2510
75
2110
0057
545
045
047
552
557
562
570
075
082
587
595
010
2510
75
2495
057
545
045
047
552
557
565
070
077
582
590
095
010
2511
00
2790
055
045
045
047
552
557
565
070
077
582
590
097
510
2511
00
3085
055
045
045
047
552
557
565
070
077
582
590
097
510
2511
00
3380
055
042
545
047
552
557
565
070
077
585
090
097
510
5011
00
3677
552
542
545
047
552
560
065
072
577
585
090
097
510
5011
25
4267
552
542
545
047
552
560
065
072
577
585
092
597
510
5011
25
4862
550
042
545
047
555
060
065
072
577
585
092
597
510
5011
25
5460
047
542
545
050
055
060
065
072
580
085
092
510
0010
5011
25
6057
545
042
545
050
055
060
067
572
580
085
092
510
0010
7511
25
6657
545
040
045
050
055
060
067
572
580
087
595
010
0010
7511
50
7257
545
040
045
050
055
060
067
575
080
087
595
010
2510
7511
50
7852
545
040
045
050
055
062
567
575
080
087
595
010
2510
7511
50
8447
542
540
045
050
055
062
567
575
082
587
595
010
2510
7511
50
9045
042
540
045
050
055
062
567
575
082
587
595
010
2511
0011
50
9642
542
540
045
050
055
062
567
575
082
587
595
010
2511
0011
75
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
Tables 173
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 67
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 2
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
1617
1819
2021
2223
2425
2627
2829
30
1211
5012
2512
7513
5014
2515
0015
5016
2517
0017
5018
2519
0019
7520
5021
25
1511
5012
0012
7513
2514
0014
7515
5016
2516
7517
5018
2518
7519
5020
2521
00
1811
5012
0012
7513
5014
0014
7515
5016
0016
7517
5018
2518
7519
5020
2521
00
2111
5012
0012
7513
5014
0014
7515
5016
2516
7517
5018
2519
0019
7520
2521
00
2411
5012
2513
0013
5014
2515
0015
5016
2517
0017
7518
5019
0019
7520
5021
25
2711
5012
2513
0013
5014
2515
0015
7516
2517
0017
7518
5019
2519
7520
5021
25
3011
5012
2513
0013
5014
2515
0015
7516
5017
0017
7518
5019
2520
0020
5021
25
3311
5012
2513
0013
7514
2515
0015
7516
5017
2518
0018
5019
2520
0020
7521
50
3611
7512
5013
0013
7514
5015
2516
0016
5017
2518
0018
7519
5020
0020
7521
50
4211
7512
5013
2513
7514
5015
2516
0016
7517
2518
0018
7519
5020
2520
7521
50
4811
7512
5013
2514
0014
5015
2516
0016
7517
2518
0018
7519
5020
2521
0021
50
5411
7512
5013
2514
0014
5015
2516
0016
7517
5018
2518
7519
5020
2521
0021
75
6012
0012
5013
2514
0014
7515
5016
0016
7517
5018
2519
0019
7520
5021
0021
75
6612
0012
7513
5014
0014
7515
5016
2517
0017
7518
2519
0019
7520
5021
2522
00
7212
0012
7513
5014
2515
0015
5016
2517
0017
7518
5019
2520
0020
5021
2522
00
7812
0012
7513
5014
2515
0015
7516
2517
0017
7518
5019
2520
0020
5021
2522
00
8412
2512
7513
5014
2515
0015
7516
2517
0017
7518
5019
2520
0020
7521
2522
00
9012
2512
7513
5014
2515
0015
7516
5017
0017
7518
5019
2520
0020
7521
2522
00
9612
2513
0013
5014
2515
0015
7516
5017
0017
7518
5019
2520
0020
7521
5022
00
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
174 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 68
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 2
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
3132
3334
3536
3738
3940
4142
4344
45
1221
7522
5023
2524
0024
5025
2526
0026
7527
5028
0028
7529
5030
2531
0031
50
1521
5022
2523
0023
7524
5025
0025
7526
5027
2527
7528
5029
2530
0030
7531
25
1821
5022
2523
0023
7524
5025
0025
7526
5027
2527
7528
5029
2530
0030
5031
25
2121
7522
5023
0023
7524
5025
2526
0026
5027
2528
0028
7529
2530
0030
7531
50
2422
0022
5023
2524
0024
7525
5026
0026
7527
5028
2529
0029
5030
2531
0031
75
2722
0022
7523
2524
0024
7525
50 2
625
2675
2750
2825
2900
2975
3025
3100
3175
3022
0022
7523
5024
0024
7525
5026
2527
0027
5028
2529
0029
7530
5031
2531
75
3322
0022
7523
5024
2525
0025
7526
2527
0027
7528
5029
2529
7530
5031
2532
00
3622
2523
0023
7524
2525
0025
7526
5027
2528
0028
5029
2530
0030
7531
5032
25
4222
2523
0023
7524
5025
0025
7526
5027
2528
0028
5029
2530
0030
7531
5032
25
4822
2523
0023
7524
5025
2525
7526
5027
2528
0028
7529
5030
0030
7531
5032
25
5422
5023
0023
7524
5025
2526
0026
7527
2528
0028
7529
5030
2531
0031
7532
25
6022
5023
2524
0024
7525
2526
0026
7527
5028
2529
0029
7530
2531
0031
7532
50
6622
7523
2524
0024
7525
5026
2527
0027
7528
2529
0029
7530
5031
2532
0032
75
7222
7523
5024
2525
0025
7526
2527
0027
75 2
850
2925
3000
3075
3125
3200
3275
7822
7523
5024
2525
0025
7526
2527
0027
7528
5029
2530
0030
7531
2532
0032
75
8422
7523
5024
2525
0025
7526
2527
0027
7528
5029
2530
0030
7531
2532
0032
75
9022
7523
5024
2525
0025
7526
2527
0027
7528
5029
2530
0030
7531
2532
0032
75
9622
7523
5024
2525
0025
7526
2527
0027
7528
5029
2530
0030
7531
2532
0032
75
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
Tables 175
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 69
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 3
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
12
34
56
78
910
1112
1314
1516
1718
1211
7570
055
055
060
065
072
580
087
595
010
5011
2512
0013
0013
7514
7515
5016
50
1511
0067
552
555
057
565
070
077
587
595
010
2511
0012
0012
7513
7514
5015
2516
00
1810
5065
052
552
557
565
070
077
585
095
010
2511
0012
0012
7513
5014
2515
2516
00
2110
0062
550
052
557
565
070
077
585
095
010
2511
0012
0012
7513
5014
2515
2516
00
2497
560
050
052
557
565
070
077
585
095
010
2511
0012
0012
7513
5014
5015
2516
00
2792
560
050
052
557
565
070
080
087
595
010
2511
2512
0012
7513
7514
5015
2516
00
3087
560
050
052
557
565
072
580
087
595
010
5011
2512
0013
0013
7514
5015
2516
25
3382
557
550
052
557
565
072
580
087
595
010
5011
2512
2513
0013
7514
5015
5016
25
3680
057
550
052
557
565
072
580
087
597
510
5011
5012
2513
0014
0014
7515
5016
50
4270
057
550
052
560
065
072
580
090
097
510
5011
5012
2513
2514
0014
7515
7516
50
4865
055
050
052
560
065
072
582
590
097
510
7511
5012
5013
2514
2514
7515
7516
50
5462
552
550
052
560
067
575
082
590
010
0010
7511
5012
5013
5014
2515
0015
7516
75
6062
550
050
052
560
067
575
082
592
510
0010
7511
7512
5013
5014
2515
0016
0017
00
6660
050
047
555
060
067
575
085
092
510
0011
0011
7512
7513
5014
5015
2516
0017
00
7260
050
047
555
060
067
577
585
092
510
2511
0012
0012
7513
7514
5015
2516
2517
25
7855
050
047
555
060
067
577
585
092
510
2511
0012
0013
0013
7514
7515
5016
2517
25
8452
550
047
555
062
570
077
585
095
010
2511
0012
0013
0013
7514
7515
5016
2517
25
9047
550
047
555
062
570
077
585
095
010
2511
2512
0013
0013
7514
7515
5016
2517
25
9645
047
547
555
062
570
077
585
095
010
2511
2512
0013
0013
7514
7515
5016
5017
25
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
176 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 70
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 3
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
1920
2122
2324
2526
2728
2930
3132
3334
35
1217
2518
2519
0020
0020
7521
7522
5023
5024
2525
2526
0027
0028
0028
7529
7530
5031
50
1517
0017
7518
7519
5020
5021
2522
2523
0024
0024
7525
7526
7527
5028
5029
2530
2531
00
1816
7517
7518
5019
5020
2521
2522
0023
0023
7524
7525
5026
5027
2528
2529
0030
0030
75
2116
7517
7518
5019
5020
2521
2522
0023
0023
7524
7525
5026
5027
5028
2529
0030
0030
75
2417
0017
7518
7519
5020
2521
2522
0023
0023
7524
7525
5026
5027
2528
2529
0030
0030
75
2717
0017
7518
7519
5020
5021
2522
2523
0024
0024
7525
7526
5027
5028
2529
2530
0031
00
3017
0018
0018
7519
7520
5021
5022
2523
2524
0025
0025
7526
7527
5028
5029
5030
2531
25
3317
2518
0019
0019
7520
7521
5022
5023
5024
2525
2526
0027
0027
7528
7529
5030
5031
25
3617
5018
2519
2520
0021
0021
7522
7523
5024
5025
2526
2527
2528
0029
0029
7530
7531
50
4217
5018
2519
2520
0021
0021
7522
7523
7524
5025
5026
2527
2528
0029
0030
0030
7531
75
4817
5018
5019
2520
2521
0022
0022
7523
7524
7525
5026
5027
2528
2529
0030
0031
0031
75
5417
5018
5019
5020
2521
2522
0023
0024
0024
7525
7526
5027
5028
5029
2530
2531
0032
00
6017
7518
7519
5020
5021
2522
2523
2524
0025
0025
7526
7527
7528
5029
5030
2531
2532
25
6618
0018
7519
7520
5021
5022
5023
2524
2525
2526
0027
0027
7528
7529
7530
5031
5032
50
7218
0019
0020
0020
7521
7522
5023
5024
5025
2526
2527
2528
0029
0030
0030
7531
7532
50
7818
0019
0020
0020
7521
7522
5023
5024
5025
2526
2527
2528
0029
0030
0030
7531
7532
50
8418
0019
0020
0020
7521
7522
7523
5024
5025
2526
2527
2528
0029
0030
0030
7531
7532
75
9018
2519
0020
0020
7521
7522
7523
5024
5025
5026
2527
2528
0029
0030
0030
7531
7532
75
9618
2519
0020
0021
0021
7522
7523
5024
5025
5026
2527
2528
0029
0030
0030
7531
7532
75
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
Tables 177
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 71
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 4
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
12
34
56
78
910
1112
1314
15
1215
5095
075
080
087
595
010
7512
0013
2514
5015
7517
0018
2519
5021
00
1514
5090
075
077
585
095
010
5011
5012
7514
0015
2516
5017
7519
0020
50
1813
7585
072
575
082
592
510
5011
5012
5013
7515
0016
2517
5019
0020
25
2113
2585
070
075
082
592
510
2511
2512
5013
7515
0016
0017
5018
7520
00
2412
7582
570
072
580
090
010
0011
2512
5013
5014
7516
0017
2518
5019
75
2711
5080
070
072
580
090
010
0011
2512
2513
5014
7516
0017
2518
5019
75
3010
2580
067
572
580
090
010
0011
0012
2513
5014
7516
0017
0018
5019
50
3392
577
567
572
580
090
010
0011
0012
2513
5014
7516
0017
0018
2519
50
3685
075
067
572
580
090
010
0011
0012
2513
5014
5015
7517
0018
2519
50
4275
075
065
072
580
090
010
0011
0012
2513
5014
5015
7517
0018
2519
50
4870
067
565
072
580
090
010
0011
0012
2513
5014
5015
7517
0018
2519
50
5467
562
565
072
580
090
010
0011
0012
2513
5014
5015
7517
0018
2519
50
6067
560
065
070
080
090
010
0011
0012
2513
5014
5015
7517
0018
2519
50
6665
057
562
570
080
090
010
0011
2512
2513
5014
7516
0017
0018
2519
50
7265
057
560
070
080
090
010
0011
2512
2513
5014
7516
0017
0018
2519
50
7862
557
560
070
080
090
010
0011
2512
5013
5014
7516
0017
0018
2519
50
8457
557
560
070
080
090
010
2511
2512
5013
5014
7516
0017
2518
5019
50
9055
057
560
070
080
090
010
2511
2512
5013
7514
7516
0017
2518
5019
50
9652
557
560
070
080
092
510
2511
5012
5013
7515
0016
0017
2518
5019
75
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
178 Concrete Pipe Design Manual
American Concrete Pipe Association • 222 W. Las Colinas Blvd., Suite 641 • Irving, Texas 75039-5423 • 972-506-7216 • Fax 972-506-7682
Table 72
Fill
Hei
gh
t Ta
ble
s ar
e b
ased
on
:1.
A s
oil w
eigh
t of 1
20 lb
s/ft3
2.A
AS
HT
O H
S20
live
load
3.E
mba
nkm
ent i
nsta
llatio
n
Typ
e 4
Bed
din
g
Fill
Hei
gh
t (f
eet)
Pip
e i.d
.(i
nch
es)
1617
1819
2021
2223
1222
2523
5025
0026
2527
7527
0030
2531
75
1521
7523
0024
5025
5027
0028
2529
5031
00
1821
2522
7524
0025
2526
5027
7529
0030
50
2121
2522
5023
7525
0026
2527
5028
7530
00
2421
0022
2523
5024
7526
0027
2528
5029
75
2720
7522
0023
2524
5025
7527
0028
2529
50
3020
7522
0023
2524
5025
7527
0028
2529
50
3320
7522
0023
2524
5025
7527
0028
2529
50
3620
7522
0023
2524
5025
5026
7528
0029
25
4220
5021
7523
0024
2525
5026
7528
0029
25
4820
5021
7523
0024
2525
5026
7528
0029
25
5420
5021
7523
0024
2525
5026
7528
0029
25
6020
5021
7523
0024
2525
5026
5027
7529
00
6620
5021
7523
0024
2525
5026
7527
7529
00
7220
5021
7523
0024
2525
5026
7528
0029
00
7820
7521
7523
0024
2525
5026
7528
0029
00
8420
7522
0023
0024
2525
5026
7528
0029
25
9020
7522
0023
2524
2525
5026
7528
0029
25
9620
7522
0023
2524
5025
5026
7528
0029
25
Cla
ss I
Cla
ss IV
Cla
ss II
Cla
ss V
Cla
ss II
IS
peci
al D
esig
n
