SALFORD RISE ELEVATED BRIDGE DEVELOPMENT

As part of the transformative Salford Rise development, over 3,000m³ of Leca® Lightweight Aggregate (LWA) was specified for use in the construction of a new elevated bridge walkway. The project, located adjacent to the University of Salford, aims to remove longstanding physical barriers and establish seamless connectivity between surrounding communities and the evolving innovation district.

Funded in part by a £13.17m Levelling Up Fund grant, the scheme represents a major investment in the urban regeneration of Greater Manchester.

Geotechnical Challenge

The construction of the bridge abutments presented challenging ground conditions, requiring a solution that would:

• Minimise settlement and structural pressure

• Address long-term risks such as sliding, tilting, and bearing failure

• Accelerate installation to reduce time on site

Traditional fill materials were deemed unsuitable due to their weight and the corresponding structural demands.

FACTS

Amount of material: 3000m3 of LECA LWA (10-20mm)

Interesting Fact: The project, located adjacent to the University of Salford, aims to remove longstanding physical barriers and establish seamless connectivity between surrounding communities and the evolving innovation district.

Delivery Method: Walking Floor

Main Contractor: Eric Wright Group

Engineering Solution: Leca® Lightweight Aggregate

The Eric Wright Group is the main contractor leading the delivery phase and Leca® LWA was selected by the designers for its exceptional strength-to-weight ratio, reducing load by up to 75% compared to traditional fill.

Key Advantages:

• Lightweight: Reduces vertical and lateral pressures on the structure

• High permeability: Supports integrated drainage systems

• Installation efficiency: Speeds up construction and simplifies logistics

• Improved design outcomes: Enables leaner structural profiles, reducing costs and materials

The use of Leca® LWA enabled faster abutment construction, minimised ground disturbance, and contributed to the resilience and long-term performance of the structure.

Conclusion

The Salford Rise project demonstrates how Leca® LWA provides a geotechnically sound, sustainable solution for infrastructure developments with complex ground conditions. By significantly lowering structural load and installation time, Leca® plays a key role in delivering safer, more efficient civil engineering outcomes — supporting urban regeneration and infrastructure resilience.