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

Coastal Protection

Tetrapods.
3 and 5-tonne wave armour.

Precast concrete tetrapods for coastal defence, breakwater armour and erosion control. Cast in marine-grade C40/50 concrete to Eurocode 2 with full chloride-resistance detailing. Standard 3-tonne (6,610 lb) and 5-tonne (11,020 lb) units; bespoke sizes to coastal engineer's specification. Please call to check current yard stock or current lead times; supply of units for harbour and seawall schemes.

Ideal for sea defence — reduce erosion, reduce wave energy. Suitable for Environment Agency coastal works. Two sizes — 3-tonne / 6,610 lb (1.95 × 1.95 × 1.72 m / 6'5" × 6'5" × 5'8") and 5-tonne / 11,020 lb (2.34 × 2.34 × 2.08 m / 7'8" × 7'8" × 6'10") — cast in C40/50 marine-grade concrete.

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WCCP precast concrete 3 and 5-tonne tetrapods in the yard, coastal armour units cast in Devon

Specification

Marine armour — engineered sizing.

Unit Weight Overall Dimensions Concrete Specification Application
3 tonne (6,610 lb) 1950 × 1950 × 1720 mm (1.95 × 1.95 × 1.72 m) — 6ft5in × 6ft5in × 5ft8in C40/50 concrete Coastal defence, sea-wall armour, wave-energy reduction
5 tonne (11,020 lb) 2340 × 2340 × 2080 mm (2.34 × 2.34 × 2.08 m) — 7ft8in × 7ft8in × 6ft10in C40/50 concrete Heavy breakwater armour and exposed foreshore protection

Key Features

  • · 3-tonne and 5-tonne unit weights for optimal interlocking and stability
  • · Four-leg design for natural matrix formation on slopes
  • · C40/50 concrete specified for marine exposure
  • · Integrated lifting points for safe placement
  • · Designed to current code with marine engineering best practice

Design Standards

  • · Manufactured in compliance with applicable British Standards
  • · Coastal engineering best practice
  • · Wave energy dissipation modelling
  • · Site-specific slope analysis available

Where They Go

Breakwaters, revetments, coastal armour.

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Coastal defence and erosion control

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Breakwater and revetment protection

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Wave attenuation on exposed foreshores

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Marine engineering and harbour protection

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Environmental revetments and habitat structures

From the casting bed, to the foreshore

Armour units, in the yard.

3-tonne and 5-tonne tetrapods cast at Chilsworthy, ready for breakbulk haulage to the harbour or seawall site.

WCCP precast concrete tetrapods in the Devon yard — 3 and 5-tonne coastal armour units
3-tonne and 5-tonne tetrapods in the yard. Each unit cast in C40/50 marine-grade concrete.

Downloads

Datasheet and CAD files.

Drawings and specification sheets

Tetrapods — 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.

Need a quotation?

Tell us the unit size and quantity your coastal engineer has specified — we'll quote it.

Request a quote Call 01409 281437
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