At Ridgeway Rockbags, innovation is shaped by the real challenges engineers and contractors face every day — whether stabilising a riverbank or protecting offshore infrastructure in high-energy marine environments.
As infrastructure demand increases on land and at sea, so does the need for flexible, reliable, and fast-to-install scour protection solutions. In response, Ridgeway is proud to announce the expansion of the Filter Unit® Rockbags range with the introduction of two new purpose-built units:
- 1 Tonne Eco Green
- 12 Tonne S Type
This expansion enables project teams to specify one trusted system across a broader range of applications — from compact civil works to major offshore developments.
1 Tonne Eco Green Filter Unit® Rockbag – Designed for Civil Engineering Applications.
The new 1 Tonne Eco Green Filter Unit® Rockbag has been engineered specifically for civil environments where ease of handling, speed of installation and flexibility are essential.
Applications include:
- Riverbanks and waterways
- Drainage channels and outfalls
- Culverts and bridge protection
- Temporary or permanent erosion control works
12 Tonne S Type Filter Unit® Rockbag – Engineered for Offshore Applications
At the opposite end of the spectrum, the 12 Tonne S Type Filter Unit® Rockbag has been developed to perform in demanding offshore and high-energy marine environments where stability and durability are critical.
Applications include:
- Offshore wind turbine foundations
- Scour protection around monopiles and jackets
- Subsea pipelines and cable protection
- Coastal and marine infrastructure projects
Proven Performance, Same Trusted Design
Both new sizes retain the core features that make Ridgeway Filter Unit® Rockbags a trusted solution:
– Manufactured with high-performance geotextiles
– Designed for rapid production and deployment
– Available in a wider size range (1, 2, 4, 8, and 12 Tonne)
– Consistent quality and repeatable installation.
Whether on land or at sea, the same engineering principles apply — reliability, speed, and safety.
One System. More Applications.
The introduction of the 1 Tonne Eco Green and 12 Tonne S Type Filter Unit® Rockbags means specifiers can now utilise a single, proven system for both civil and offshore projects. This results in simpler procurement, greater on-site flexibility, and a solution that adapts to your project — not the other way around.
If you would like to discuss how the expanded range can support your next project, the Ridgeway Rockbags team is ready to assist you.



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