RADIX Ground Screw Foundations for 100% Recycled Plastic Boardwalk

Over 330 RADIX PRO Ground Screws were installed to support a 20-metre pedestrian bridge and 110-metre recycled-plastic boardwalk, designed and built by Bison Bridges and No More Digging Wales. The project, located within a protected wetland, required a fully off-grid installation method and strict environmental controls to protect local wildlife while delivering a durable, low-impact access route built entirely on sustainable foundations.

Client:
Bison Bridges

Location:
Undisclosed

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

Sector:
Leisure & Tourism / Transport & Infrastructure

Services:

Site Survey and Load Testing for both the bridge and boardwalk

Products:

RADIX PRO Ground Screws 76x800mm – 76x2050mm

Overview

Sustainable Foundations for Access Infrastructure in a Sensitive Wetland Environment

No More Digging Wales was commissioned by Bison Bridges to deliver the full foundation and installation package for a 20-metre bridge and 110-metre 100% recycled plastic boardwalk within an environmentally sensitive wetland. Working under strict environmental controls, the team provided site surveys, load testing, foundation design, and the installation of over 330 no. 76mm RADIX PRO Ground Screws ranging from 800mm to 2050mm in length. The project required both bridge and boardwalk foundations to be installed without disturbance to surrounding wildlife or contamination of watercourses, achieved through specialist working methods, off-site manufacturing facilities, and strict waste management, ensuring no residue entered the lake or surrounding habitats.

Access to site was particularly challenging, with the off-site compound located approximately one mile from the installation area. All equipment, materials and tools were transported via quad bike and trailer, with no power supply available, requiring the use of portable generators and hand tools throughout.

The project was completed in six weeks, one week ahead of schedule.

Solution

Precision Installation in a Protected Environment

Working closely with the local wildlife trust, No More Digging Wales maintained full environmental compliance and achieved two perfect site inspections over the course of the project. To accommodate rising water levels during the winter months, deeper screw foundations were selected to raise the bridge structure safely above regular water levels.

The combined installation of ground screws, structural framework, decking, and bridge elements was carried out entirely in-house, meeting the client’s requirement for a single-contractor delivery model. The inclusion of fully qualified carpenters and ground screw installation teams enabled the project to progress seamlessly from foundation works through to superstructure assembly without sub-contractor involvement.

The end result is a durable, low-maintenance and environmentally responsible access route that blends naturally into the landscape, providing year-round accessibility while preserving the integrity of the site.