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Corrugation 150
Lowered section - type 2 - Corrugation 150

Corrugation 150 is available for the Lowered section Type 2 of Imeva’s corrugated steel sheet culverts, a shape recommended in cases where a certain area of the section is to be maintained, with a decrease in the vertical dimension and an increase in the horizontal one. Thanks to its hydraulic efficiency, the larger size of the lowered section culvert extends its use to small tunnels or to the conveyance of watercourses of a certain importance.

Corrugation types for Lowered section - type 2

Culvert thickness
Embankment height
m
min
+
1,0
4,0
4,0
4,5
4,5
4,5
4,5
4,5
4,5
4,5
4,5
5,5
5,5
5,5
5,5
5,5
6,0
6,0
6,0
6,0
6,0
6,0
7,0
7,0
7,0
1,01
+
2,50
4,0
4,0
4,0
4,0
4,0
4,5
4,5
4,5
4,5
4,5
5,5
5,5
5,5
5,5
5,5
5,5
5,5
5,5
5,5
5,5
5,5
7,0
7,0
7,0
2,51
+
4,00
4,0
4,0
4,5
4,5
4,5
4,5
4,5
4,5
5,5
5,5
5,5
5,5
5,5
5,5
5,5
6,0
6,0
6,0
6,0
6,0
6,0
7,0
7,0
-
4,01
+
5,50
4,0
4,0
4,5
4,5
4,5
4,5
4,5
4,5
5,5
5,5
5,5
5,5
5,5
5,5
5,5
6,0
6,0
6,0
6,0
6,0
6,0
-
-
-
5,51
+
7,00
4,5
4,5
5,5
5,5
5,5
5,5
5,5
5,5
6,0
6,0
6,0
6,0
6,0
6,0
6,0
7,0
7,0
7,0
7,0
7,0
7,0
-
-
-
7,01
+
8,50
5,5
5,5
6,0
6,0
6,0
6,0
6,0
6,0
7,0
7,0
7,0
7,0
7,0
7,0
7,0
-
-
-
-
-
-
-
-
-
Geometric characteristics
plates
8
9
10
spaces
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
Light
m
4,04
4,12
4,27
4,32
4,40
4,55
4,67
4,75
4,83
4,95
5,03
5,18
5,23
5,31
5,46
5,51
5,66
5,72
5,87
5,94
5,99
6,07
6,22
6,27
Arrow
m
2,85
2,90
2,95
3,00
3,05
3,10
3,15
3,20
3,25
3,30
3,35
3,40
3,45
3,50
3,55
3,60
3,65
3,70
3,75
3,81
3,86
3,91
3,96
4,01
Section
m
9,10
9,50
9,90
10,25
10,70
11,05
11,50
12,20
12,40
12,85
13,30
13,80
14,25
14,70
15,15
15,65
16,20
16,70
17,20
17,70
18,25
18,80
19,35
19,90
Theoretical weight with bolts kg/m
Thickness
mm
2,5
357
364
371
377
384
391
398
405
412
419
431
438
445
452
459
465
472
479
492
499
506
513
520
563
3,0
486
496
505
514
524
534
543
553
562
571
588
598
607
617
626
635
645
655
671
681
690
700
709
755
4,0
550
560
571
581
592
603
614
625
636
646
665
676
686
697
708
718
729
740
759
769
780
791
802
848
4,5
613
625
637
648
660
673
685
697
709
721
741
753
765
777
789
801
813
826
846
858
870
882
894
942
5,0
740
755
769
783
798
813
828
842
854
871
896
910
924
940
954
968
983
998
1022
1037
1051
1066
1081
1099
6,0
816
831
847
862
878
894
910
916
941
978
993
1000
1016
1043
1059
1074
1090
1106
1121
1137
1153
1169
1184
1200
7,0
943
961
979
998
1016
1034
1053
1061
1089
1120
1139
1157
1175
1206
1224
1242
1261
1279
1297
1316
1334
1352
1370
1389

The indicated dimensions, referred to the inside of the corrugation, are nominal and therefore subject to manufacturing tolerances.

The indicated thicknesses are nominal and refer to the ungalvanized raw element; for them the tolerances according to UNI EN 10051 apply. Different tolerances must be agreed in advance. As they are theoretical, the weights are also variable according to the tolerances applicable to the thickness.

The minimum height of the embankment must be determined with specific verification by the designer.

For all sections, the number of elements is approximate and may vary depending on the availability of the elements themselves.

The dimensions in this table are approximate and not binding.

If greater thicknesses than those in the table – related to embankment height –are selected, ask for feasibility in advance, due to the possible deformation of the holes when the “radius of curvature/thickness” ratio is reduced.

TECHNICAL DETAILS - Lowered section - type 2

Lowered section Type 2 | Corrugation 150

Plate - Lowered section - type 2

Plate Corrugation 150 | Lowered section Type 2

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