Inlet Grates for Box Culverts

Inlet Grates are units designed to cover inlet orifices and prevent large debris from passing through. All grates are made from plate with round bar riser legs.

  • Plate and bar hybrid design is both clean and cost effective
  • 1/4″ plate with 5/8″ round bars
  • Typical openings in plate are 6″ and bars are at 7″ c/c
  • Mounting flanges on all 4 sides
  • Galvanized steel construction. Can be made from aluminum or stainless steel

Inlet Grates for Box Culverts

Part NumberGrate OpeningPlate ThicknessGrate ODxHThf:att:pa_grate-openinghf:att:pa_plate-thicknesshf:att:pa_grate-odxht
IG12120612"x12"1/4"17"x17"x6"
Each
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12x121-417x17x6
IG12180612"x18"1/4"17"x23"x6"
Each
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12x181-417x23x6
IG12301012"x30"1/4"17"x35"x10"
Each
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12x301-417x35x10
IG12361012"x36"1/4"17"x41"x10"
Each
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12x361-417x41x10
IG12481012"x48"1/4"17"x53"x10"
Each
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12x481-417x53x10
IG12601012"x60"1/4"17"x65"x10"
Each
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12x601-417x65x10
IG15151015"x15"1/4"20"x20"x10"
Each
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15x15-21-420x20x10
IG18181018"x18"1/4"23"x23"x10"
Each
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18x181-423x23x10
IG18301218"x30"1/4"23"x26"x12"
Each
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18x301-423x26x12
IG18361218"x36"1/4"24"x42"x12"
Each
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18x361-424x42x12
IG24241224"x24"1/4"30"x30"x12"
Each
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24x241-430x30x12
IG30300630"x30"1/4"36"x36"x6"
Each
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30x301-436x36x6
IG30301230"x30"1/4"36"x36"x12"
Each
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30x301-436x36x12
IG36360636"x36"1/4"42"x42"x6"
Each
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36x361-442x42x6

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