Infrastructure retaining walls

Engineered for long-life, high-load infrastructure projects.

High-performance walls for roads, rail, flood defences and public infrastructure

Infrastructure projects demand more from every element – higher load capacity, longer lifespan, and resilience in harsh conditions.

Our precast retaining wall systems are designed to meet those challenges. From highway embankments and coastal protection to below-ground structures and public infrastructure, our walls provide strength, speed, and lasting value.

Every wall is produced off-site using high-strength, self-compacting concrete and designed to satisfy the structural, environmental, and durability requirements of the project.

Wall Systems for Infrastructure Projects

Here’s a quick overview of our precast wall systems, including heel options for poor ground conditions, as well as decorative or hybrid solutions for projects where appearance is a priority.

We’re happy to advise on the most efficient L-shape wall for your site.

Wall System	Surcharge Capacity	Max. Height	With Heel	Interlocking	StoneBox^TM Option	Design Life
CLF10GS	10 kN/m²	4.5m	No	Yes	Yes	50 Years
CLF10GS(Z)	10 kN/m²	4.5m	Yes	Yes	No	50 Years
DLF10GS	25 kN/m²	4.5m	No	Yes	Yes	50 Years
DLF10GS(Z)	25 kN/m²	4.5m	Yes	Yes	No	50 Years
ELF	Custom	6m	No	No	Yes	>120 Years
RECKLI	10 kN/m²	3m	No	No	No	50 Years

Working on a split-level site is always challenging, and late design changes required many foundations that were not initially planned. This was a test for us to keep everything on track for the University at a critical stage, and meant they had to be very flexible indeed. We’ve been very impressed with the team, who were committed to delivering a quality job.

Mike McCormick – Bouygues

Flexible and made to fit any infrastructure project

No two projects are the same, and our retaining walls are designed with that in mind. You can choose from a wide range of heights, lengths, and wall types to suit different ground conditions, boundary layouts, and site levels.

Sloping, stepped, and curved sections are all possible, making them ideal for sloping sites or complex layouts.

The units can also be clad in stone or brick, making them a smart choice for projects where the visual finish is important.

Where Our Walls Are Used

Our CLF, DLF, and ELF wall systems are already being used on a wide range of infrastructure projects including:

Roads and railway cuttings and embankments
Coastal protection (with joint sealing)
Flood protection and riverbank retaining walls (with joint sealing)
Basements and below-ground structures (where waterproofing and jointing are required)
Highways depots and grit salt storage
Public infrastructure works and landscaping within large-scale developments
Hard landscaping and earth retention as part of larger infrastructure works

Each wall system is customised to the project design, considering ground conditions, loading, exposure class, and installation access. We’ll assist you in choosing the best solution.

What Makes Our Walls Different

Our walls are designed for durability and are manufactured with the flexibility to match your specification.

Up to 25 kN/m² surcharge capacity as standard (DLF)
Higher surcharge capacity available with bespoke ELF designs
Design life of 50 years (CLF/DLF) or up to 120 years (ELF)
C60/75 self-compacting concrete
Minimum 30 mm reinforcement cover, increased where required
Exposure classes supported: XC4, XF3, XD3, XS3, XA3
Certified to EN 15258 for precast retaining walls
Designed to Eurocodes EN 1990, 1991, 1992, 1997, and 1998

For projects in coastal, marine, buried, or highly aggressive environments, we’ll advise on increased cover, joint sealing, and protective measures as needed.

Efficient to install - Designed for speed

All our units are manufactured with lifting anchors and interlocking joints for safe, fast, accurate installation.

Standard walls can be installed at a rate of up to 80 metres per day by a three-person team using standard lifting equipment.

Longer 4m units are available to reduce the number of lifts and minimise disruption on site – ideal for highways, rail, and tight-access locations.

Custom Design Support for Complex Sites

Our ELF retaining wall system is fully adaptable to your project, designed from the ground up to meet specific structural and environmental requirements. With wall heights reaching up to 6m, section thicknesses of up to 300 mm, and customised reinforcement, ELF is the ideal choice for sites

Higher surcharge capacity
Extended design life
Exposure to aggressive or marine environments
Additional durability and structural assurance

We’ll work with your team to develop a fully compliant, cost-effective solution.

Looking for something more architectural?

Choose our Reckli decorative concrete walls available in a range of textured finishes. Or add our StoneBox^TM hybrid gabion facing to CLF and DLF units for a softer look that blends into landscaping schemes.

Reckli Retaining Walls

Reckli walls are standalone precast retaining units with a decorative textured face, providing a clean architectural finish straight from the mould. Perfect for residential developments where visual quality is important – whether it’s a boundary wall, a landscaped terrace, or a communal garden feature.

Stonebox System

StoneBox^TM is a modular, gabion-style steel cage designed to attach directly to CLF or DLF units. Once installed, the cage is filled with stone on-site, creating the appearance of a gabion retaining wall, without the large quantity of stone or lengthy installation times associated with traditional systems.

The Company We Keep

Sustainable By Design

From material selection to transport and installation, our walls are designed to minimise environmental impact.

Optimised concrete mix with reduced cement content
Recycled water used in production
Reinforcement only where structurally required
Off-site manufacturing to reduce waste and site disruption

It’s all part of our approach to building smarter, leaner infrastructure – without compromising performance.