Marine and Coastal Defence Wall

Marine and Coastal Defence Wall

Precast concrete marine and coastal sea defence walls, part of our bespoke concrete product department can be erected quickly and efficiently which makes the products particularly suited to construction in a tidal environment.

In the harsh environmental conditions experienced in marine and coastal applications our precast concrete walls are designed to perform well with outstanding durability and aesthetic quality of factory produced elements, giving the suitability necessary for marine environments.

Sea Defence Wall features:

GRP reinforcement

All our marine and coastal defence wall units come with the option of GPR reinforcement, which is resistant to the corrosive attack by salts in sea water and offers some important benefits over steel rebar including:

  • corrosion resistant to chloride ion attack and most other acids
  • tensile strength equal or greater than that of steel
  • quarter the weight of steel reinforcing bar
  • electrically non-conductive
  • low thermal conductivity and almost transparent to RF and EMI
  • excellent static and dynamic fatigue resistance
  • good impact resistance

Aesthetic finish

It is possible, subject to design criteria, to apply an aesthetic finish to the product that with blend in to the marine environment. Using the most up to date designs in rubber matting any appearance can be given to precast concrete, and more importantly, this finish can be repeated time after time in a factory controlled environment. For more information click here.

Extended life concrete

Depending on your specification we can design a specialist marine concrete mix in accordance with BS EN 206-1 which can be used to extend the life of the finished units, to ensure that the wall can withstand the test of time and the harshness of the tidal environment. Alternatively, if you have your own mix design we will happily work with you to achieve the desired finished product.


Examples of marine and coastal defence wall projects

Hartlepool Headwall

The contract, being carried out on behalf of Hartlepool Borough Council, is part of a £9M coastal erosion programme designed to protect and strengthen the existing 100 year old sea wall, including placement of rock armour along some 800 m of critical areas.

The 200 mm thick decorative panels are being installed to heights of up to 6 m and are anchored into the existing wall prior to back-filling with concrete. This will result in a new wall with a total new minimum thickness of approximately 450 mm. Read more here.

Marine and costal defence gallary


Do you have a sea defence wall need?

Our bespoke concrete department would be delighted to discuss this with you further. Call Tim Evans on 01449 723150.