Maccaferri was appointed by Barratt Homes to design and deliver a tailored retaining wall solution to address the complex site conditions. Following a detailed site assessment, a combination of reinforced soil walls and gabion retaining walls was specified to stabilise the الأرض and form a series of terraces suitable for residential construction.

The primary structure consisted of a Terramesh® System reinforced soil wall, extending 250 metres in length and covering a face area of 1,082m². The Terramesh® System is a proven, modular retaining wall solution widely used in civil engineering projects for its durability, flexibility, and cost-effectiveness. It combines double-twisted wire mesh units with high-performance ParaGrid geogrids, which provide essential soil reinforcement at multiple levels within the structure. These geogrids deliver high tensile strength, enabling the wall to support heavy loads and maintain long-term stability. The units were filled with locally sourced stone, while site-won fill material was used as backfill, enhancing both sustainability and project efficiency.

To complement the main structure, two lower-height gabion retaining walls were constructed, with a combined length of 144 metres and a total volume of 430m³. These mass gravity walls played a key role in completing the terracing system, ensuring effective load distribution and additional slope support across the development.

Maccaferri’s integrated approach provided a fast, efficient, and cost-effective installation process. By offering a range of retaining wall systems rather than a single-product solution, the design was fully optimised to meet the specific geotechnical and structural requirements of the site. The result was a robust and sustainable ground engineering solution that enabled Barratt Homes to successfully deliver their housing development in Bonhill.