Coastal Erosion Control Solutions
Legato® Interlocking Concrete Blocks by Elite Precast
Elite Precast supplies coastal erosion control and shoreline protection systems using Legato® interlocking concrete blocks, providing a durable, adaptable and cost-effective solution for managing erosion, wave action and tidal forces in coastal and estuarine environments.
Manufactured from high strength 50N/mm² concrete, Legato® blocks are engineered to perform in harsh marine conditions where long-term durability, stability and environmental responsibility are essential.
What are Legato® Interlocking Blocks?
What Is Coastal Erosion Control?
Coastal erosion control structures are designed to:
Protect shorelines from wave and tidal action
Prevent land loss and infrastructure damage
Stabilise embankments and coastal slopes
Reduce scouring and undermining
Manage sediment movement in dynamic environments
Legato® interlocking concrete blocks form gravity-based coastal defence structures that rely on mass, interlock and geometry rather than steel reinforcement or mortar, making them ideal for exposed marine locations.
Why Choose Elite Precast
With decades of precast expertise, in-house engineering support and a proven delivery record on projects of every scale, Elite Precast is the partner specifiers trust. We pair robust, repeatable manufacturing with the flexibility to engineer bespoke solutions when a standard product will not do.
Key Applications
Typical Coastal Applications
Legato® interlocking concrete blocks are widely used for:
Coastal retaining walls
Shoreline stabilisation
Sea defence walls
Embankment protection
Tidal river and estuary walls
Harbour and marina protection
Flood defence structures
Temporary coastal works and emergency protection
Benefits
High Strength & Stability
Manufactured using high-performance concrete
High unit weight resists wave impact and hydraulic forces
Interlocking design minimises movement under cyclic loading
Marine-Grade Durability
No steel reinforcement to corrode
Resistant to saltwater, freeze-thaw and abrasion
Suitable for tidal, splash-zone and fully exposed environments
120-year design life
Flexible and Modular Construction
Dry-stack installation
Easily adapted to irregular coastlines and changing profiles
Can be reconfigured, extended or repaired as conditions evolve
Rapid Installation
Cast-in lifting pins for safe handling
No curing time required
Reduced construction windows in tidal zones
Engineered for Your Environment
Design, Stability and Engineering Considerations
Coastal erosion control structures must account for:
Wave loading and overtopping
Tidal variation and hydraulic pressure
Scour and ground stability
Wind loading
Wall height and geometry
Ground bearing capacity
Elite Precast provides access to its Stability and Loadings Directory, offering guidance on block selection, wall heights and foundation requirements.
⚠️ Important: All coastal erosion control structures must be reviewed and approved by a qualified structural or coastal engineer prior to installation.
Installation and Safety Guidance
Construct on a suitable, level and stable base
Assess scour risk and provide protection if required
Inspect blocks and lifting pins before use
Avoid impact damage during installation
Consider strapping top layers in highly exposed locations
Compliance and Performance
Designed in accordance with BS EN 1992-1-2004 (Eurocode 2)
Class A1 Fire Resistant
Suitable for public sector and infrastructure projects
Why Choose Legato® Interlocking Blocks for This Application?
Why Choose Elite Precast?
Leading UK manufacturer of interlocking concrete block systems
Proven performance in harsh environments
Large stock availability for rapid deployment
Nationwide delivery with vehicle and offload options
Experienced technical and engineering support
Elite Precast – Protecting Coastlines with Strength, Stability and Sustainability.
