CASE STUDY

Boardwalk Foundations, Wales

Ground screw foundations for a 20-metre pedestrian bridge and 110-metre recycled plastic boardwalk, installed within a protected wetland. The project was delivered by No More Digging Wales in partnership with Bison Bridges, using over 330 RADIX PRO ground screws to create a fully sustainable access route with minimal environmental impact.

Client:
Bison Bridges

Location:
Undisclosed

Project:
Foundations for a 20 Metre Bison Bridge & 110 Metres of Recycled Plastic Boardwalk

Install Team
No More Digging Wales

Challenge

The site, situated within an ecologically sensitive wetland, required strict adherence to environmental protection measures. All foundation works had to be completed without disturbing local wildlife or contaminating nearby watercourses.

Access presented further challenges: the installation area lay around one mile from the main compound, with no direct vehicle access and no on-site power supply. All equipment, materials, and tools had to be transported via quad bike and trailer, relying solely on portable generators and hand tools.

The project demanded a durable, low-impact foundation system capable of supporting both a 20-metre bridge and a 110-metre recycled plastic boardwalk, while also accommodating seasonal water-level changes.

Solution

A detailed pre-installation survey and load testing were completed for both the bridge and boardwalk to determine optimal screw specifications. RADIX PRO Ground Screws ranging from 800 mm to 2050 mm in length were installed to achieve the required load-bearing capacity and height variation for the site.

Working in partnership with the local wildlife trust, No More Digging Wales implemented rigorous environmental controls throughout the project. Zoned cutting stations and strict waste-management procedures ensured zero contamination—recovering over 25 rubble sacks of offcuts, swarf, and metal filings during the installation phase.

To address potential winter flooding, longer ground screws were deployed to raise the bridge structure above expected water levels. All foundation, framework, decking, and bridge works were completed in-house, thanks to the inclusion of fully qualified carpenters within the installation team—eliminating the need for subcontractors.

Installation was completed in six weeks, one week ahead of schedule, delivering a resilient, low-maintenance, and environmentally responsible access route that blends naturally into its surroundings while preserving the integrity of the wetland habitat.