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  • Made in North Devon since 1973
  • BSI Kitemark ready-mixed concrete
  • Manufactured to applicable British Standards
  • UK-wide & European delivery

Civils · drainage · highways

Box Culverts.

Up to 2.6 × 3.6m (8ft6in × 11ft10in). Bespoke walls and reinforcement, engineered to your loading.

What size box culvert can WCCP cast?

What size box culvert can WCCP cast? We have the capability to manufacture precast concrete culverts up to 2.6m × 3.6m (8ft6in × 11ft10in) overall, up to 1.0m high, with a minimum clear opening of 700mm × 700mm (2ft4in × 2ft4in). Wall thickness is adjustable per side to suit the application (minimum 100mm), manufactured in compliance with applicable British Standards.

Precast box culverts up to 2.6 × 3.6m (8ft6in × 11ft10in), up to 1.0m high, minimum 700mm clear opening, cast in C40/50 concrete with walls and reinforcement designed to suit. Suits highway, agricultural watercourse, underpass and SuDS schemes. Bespoke skews, flat outer faces with a non-slip surface option, and inlet/outlet detailing on every order. Cast to the loading your engineer specifies.

  • · Up to 2.6 × 3.6m (8ft6in × 11ft10in)
  • · Minimum 700mm (2ft4in) clear opening
  • · Bespoke walls / rebar
  • · Non-slip outer face finish option
  • · Cast to your engineer's loading
Precast concrete box culverts being placed on site — West Country Concrete Products, Devon

Specification

Sizes, walls and loadings.

Catalogue box culvert sizes for typical schemes. Bespoke spans, skews and loadings on application.

Specification Value
Maximum overall size 2.6m × 3.6m footprint, up to 1.0m high (8ft6in × 11ft10in, up to 3ft3in)
Minimum clear opening 700mm × 700mm (2ft4in × 2ft4in) in both directions
Standard Manufactured in compliance with applicable British Standards
Wall thicknesses Adjustable per side to suit the loading — minimum workable thickness 100mm (4in)
Concrete grade C40/50
End connections Socket-and-spigot joint formed at each end of the opening
Bespoke detailing Outer faces cast flat, with a non-slip surface applied to specification — e.g. for visible bridge applications

Each culvert is engineered to the application — send the section, fill height, loading and crossing layout and we will return a casting drawing with wall thicknesses, reinforcement and unit weights for your engineer to approve.

Gallery

Culverts on site.

Open larger photo: Rows of large precast concrete box culvert sections standing upright in the WCCP yard at Chilsworthy, Devon, with dramatic sky above
Box culverts · yard rows
Open larger photo: Stacked precast concrete box culvert sections in the WCCP yard at Holsworthy, Devon
Box culverts in the yard
Open larger photo: Two large precast concrete box culverts strapped to a flatbed lorry leaving the WCCP yard for delivery, Devon
Box culverts on the lorry
Open larger photo: Precast concrete box culvert section from West Country Concrete Products being lowered into a stream excavation on site in Devon
Lowering into excavation
Open larger photo: Precast concrete culvert supplied by WCCP, set between stone abutments with galvanised handrails to form a small footbridge, Devon
Culvert with stone abutments
Open larger photo: Finished crossing with resin-bound surface and galvanised handrail, formed on a WCCP precast culvert deck, Devon
Finished culvert deck

Where they go

Common applications.

From a 700mm (2ft4in) drainage culvert under a farm track to a 3.6m (11ft10in) bridge section on a road scheme — same yard, same paperwork.

  • ·Watercourse and stream crossings under farm tracks
  • ·Highway and watercourse drainage culverts
  • ·Livestock and stock-grazing underpasses
  • ·Pedestrian and cycle underpasses
  • ·Bridge deck sections on accommodation crossings
  • ·Service tunnels for utilities and cable runs
  • ·Surface-water attenuation tank sections

Standards & certification

Engineered to current code.

British Standards
Our products are manufactured in compliance with applicable British Standards. For information regarding the specific standards applicable to a particular product, please contact us.
Eurocode 2
Concrete structural design — section, joint and bearing checks. Traffic and imposed loading are specified by your engineer.

Configure your culvert

Send section, fill height and loading — we will quote it.

Common questions

What do buyers ask about culverts?

Can you make bespoke shapes?

Yes. We draw, mould and cast one-offs all the time — from architectural copings to non-standard culvert sections. Send a sketch or DWG and we'll come back with feasibility, cost and a lead time.

Are your products CE / UKCA marked?

Our products are manufactured in compliance with applicable British Standards, under factory production control. For information regarding the specific standards applicable to a particular product, please contact us. CE/UKCA marking and Declaration of Performance status vary by product — ask the office to confirm exactly what applies to your order before you rely on it for a compliance submission.

What's the lead time on a specified civils project?

Please call to check current lead times for your project. Phased deliveries are available to suit your programme — tell us your site's fixing rate and we'll match it.

Can you provide drawings or CAD blocks?

Yes — PDF data sheets and 2D .dwg blocks for AutoCAD, from our /downloads page. We do not publish BIM models or parametric Revit (.rfa) families. Most of our CAD work is in SketchUp, and for a specific job we can sometimes export an IFC that Revit will read — ring the office and ask rather than expecting a download.

How are products craned into place?

Panels are supplied with cast-in lifting anchors (Halfen-style). Units are delivered by artic or rigid lorry — on site you'll need a telehandler, forklift or crane to unload and position panels, depending on weight.

Related products

Often ordered alongside.

View full range

Drawings and specification sheets

Box culverts — engineer pack.

Direct downloads where available, with the rest sent direct from engineering on request. Our products are manufactured in compliance with applicable British Standards — contact us for the specific standards applicable to a particular product.

Need something else? Email info@westcountryconcreteproducts.co.uk and the office will send it over.

Ready to specify it?

Send section, fill height, loading and headwall details. We will come back with a quote and current lead times.

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