As a subsidiary of one of Denmark’s leading civil engineering contractors, Per Aarsleff A/S, Aarsleff brings decades of experience in motorway groundwork engineering. We support motorway infrastructure projects across the UK through early design collaboration, geotechnical investigation, and full turnkey delivery. Our multi-disciplinary approach ensures groundworks are customised to the design stage of every project, with consideration for ground conditions, sustainability objectives, and future highway usage.
We regularly partner with contractors, consultants, and highway authorities to develop systems that minimise disruption to road users, reduce carbon emissions, and enable long-term improvement in construction and maintenance strategies.
Motorway embankments require optimal stability, particularly when constructed on weak subgrade or unsuitable soil. We deliver embankment support using soil reinforcement systems and mechanically stabilised layers (MSLs). Our engineers work with designers to identify ground parameters early on and utilise geogrids and engineered aggregate layers to improve bearing capacity.
Our methods support increased volume and thickness requirements, allowing faster embankment construction while reducing settlement risk. We ensure each subbase and capping layer meets national standards and site-specific loading requirements, helping road pavement structures to perform consistently over time.
For motorway bridges carrying vehicle loads, groundwork is essential. We deliver concrete and steel piling solutions, tailored through site-specific software analysis. We focus on minimising excavation, accelerating construction time, and ensuring durability against changing environmental and traffic conditions.
From piled abutments to load-bearing columns, our bridge groundworks are delivered in accordance with the DMRB (Design Manual for Roads and Bridges) and highway specifications. We understand the complex interfaces between bridge structures and road pavement, ensuring a safe and seamless connection.
Motorway retaining walls often govern the layout and usability of new or widened carriageways. Our engineered wall systems are modular, cost-effective, and tailored to site requirements such as wall height, surcharge loads, and aesthetic objectives.
We provide both permanent and temporary retaining wall systems to manage level changes, subgrade formation, and drainage around motorway corridors. Whether modular block walls, soil nailing, or anchored sheet piling, each solution is tailored to meet design life, load, and environmental criteria.
Retaining structures can be faced in various materials to suit visual impact or structural demands, including concrete panels, mesh systems, and green walls for increased sustainability. Our team can also deliver retaining walls using geogrid-reinforced soil, precast facing units, or in-situ concrete, ensuring versatility across schemes and projects. Our solutions contribute to landscape integration, speed of installation, and long-term performance, while offering proven savings in volume and time.
Aarsleff specialises in delivering motorway piling for bridge supports and retaining systems. We offer driven precast, CFA, rotary bored, and displacement piles, all dramatically innovative in both speed and environmental improvement.
Piling ensures adequate support where weak subgrade or challenging ground conditions underlie motorway construction zones. Our on-site team evaluates load-bearing capacity and selects the most efficient method to reduce the need for excessive excavation and remove unsuitable soils.
All piling operations are carried out with minimal road closure or disruption, meeting tight programme demands while ensuring structural performance for decades to come.
At Aarsleff, we understand that motorway infrastructure projects often involve challenging soils that require groundworks before construction begins. Through techniques such as vibro stone columns and compaction grouting, we improve subgrade formation to allow for stable and cost-effective foundation layers.
Our engineers use cutting-edge geotechnical equipment and software to analyse soil characteristics, guiding the design stage and ensuring each aggregate, subbase, and capping layer performs reliably. We also implement drainage systems to prevent saturation of weaker layers during and after construction.
These methods ensure the upper structure, including road surface and road pavement, maintains optimal quality, safety, and performance for road users.
Aarsleff has delivered motorway ground engineering, retaining wall and piling solutions across the UK. Each project demonstrates our ability to deliver complex works with precision, compliance, and an eye on savings, resilience, and sustainability.
Location: Rotherham, South Yorkshire, England
Aarsleff was contracted by Welcome Break to deliver soil nailing for a new motorway service station near Rotherham at M1 Junction 33. The project involved steepening an existing natural slope to create access for HGV amenities, ensuring safe construction and long-term durability.
Our team installed 216 soil nails (32mm diameter, totalling 2,271.5 meters), along with structural facing and test nails. The main goal was to modify the slope from about 30° to a steeper 60°, enhancing safety and stability for the development.
Planning a motorway infrastructure scheme? Whether at concept stage or in need of immediate ground engineering expertise, Aarsleff is your ideal partner. As specialist motorway groundwork contractors, we’ll help you identify ground risks, choose appropriate solutions, and develop a design that meets both performance and cost targets.
Our collaborative process ensures that subgrade and structural requirements are integrated seamlessly to provide a complete, compliant solution. Our teams also work flexibly, including night-time and weekend shifts, to minimise lane closures and reduce disruption to motorway traffic during works.
Contact us today to connect with our expert team and find out how Aarsleff can dramatically enhance your motorway infrastructure project.