SWP Box Culverts can be manufactured in many different internal dimension configurations to best suit site and design requirements.

  • Full design and Detailing package available on all projects.
  • Wide and flexible variety of internal width and height dimensions are availble with our steel mould system.
  • SWP Box Culverts can be supplied with several styles of mammal ledges.
  • Dry weather flow channels, shallow-V invert channels, central and to the sides can be supplied.
  • Special units with access holes, pipe openings, tapered and skewed joints and bespoke/special end units can be detailed and manufactured.
  • Bolt on End walls can be supplied, pre-installed to SWP Box Culverts or loose to aid with site installation and lifting capacity. (full fitting kits supplied)

Please download our brochure using the button below:

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Flexible Range of Box Culverts (flat or with flow channels)

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Channels and Troughs


Special Sections

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Attenuation Tanks


Bespoke end sections