Cofferdam Projects

Case Studies

Aarsleff has installed many cofferdams in various sectors and locations. Click on a project below to read the full case study.

Forest Town, Nottinghamshire

Our Role: Cofferdam Contractor
Location: Mansfield, Nottinghamshire, UK

In October 2023, Rock Civil Engineering were working to upgrade the wastewater facilities in Forest Town and Aarsleff were contracted to install a temporary sheet piled cofferdam to allow excavations to take place. We worked in collaboration with MGF, who are market leaders in the design, manufacture and supply of modular and bespoke excavation support systems. Aarsleff installed a cofferdam including 246 sheet piles in various lengths. This excavation created a dry working environment for the installation of attenuation tanks.

Birmingham Resilience Scheme, Worcestershire

Our Role: Cofferdam Contractor
Location: Lickhill Quarry, Stourport-on-Severn, Worcestershire

From 21st July 2017 to 13th Sep 2017, Aarsleff installed a temporary sheet piled cofferdam on the River Severn, as part of the Birmingham Resilience Scheme. This allowed the construction of secant piling to the intake structure. The cofferdam consisted of 154 No. AZ26-700 steel sheet piles, with an integral enhanced toe support system comprising of 53 No. H-Section piles. These were required due to the very shallow underlying bedrock, which only allowed for a limited sheet pile penetration. Aside from delivering the project on time and within budget, Aarsleff were also able to reduce risk and environmental damage.

Newark Re-Sewerage, Nottinghamshire

Our Role: Cofferdam Contractor
Location: Newark, Nottinghamshire, UK

In 2019, Aarsleff installed and extracted a temporary sheet piled cofferdam on Water Lane in Newark, as part of waste and water improvements in the town. Aarsleff utilise temporary sheet piles of 10m to form a cofferdam that extended into the River Trent. The works allowed the BNM Alliance to replace a new outfall structure, along with repairing and relining the current culvert that was situated underneath Water Lane. Aarsleff commenced sheet piling works at the beginning of January, with the install taking 6-weeks to complete. The extraction of the piles took place 5-weeks after installation of the piles.

Woolwich Mast Quays, London

Our Role: Cofferdam Contractor
Location: Mast Quays, Woolwich, London, UK

From November 2020 to January 2021, Aarsleff installed temporary and permanent retaining walls in on the bank of the River James to allow for the 3 tower blocks and residential features to be constructed. Aarsleff utilised a crane suspended vibrator hammer to install a temporary sheet pile cofferdam around the section of the wall that needed to be repaired. This provided a 2-metre wide dry and safe working area. Due to the tidal patterns of the Thames, Aarsleff had to ensure that the 60 metres of cofferdam was high enough to prevent water from overflowing into the working area whilst the repairs were taking place. Aarsleff returned in January to remove the sheet pile cofferdam and allow for the river Thames to flow into the new ecological water feature.

Other Locations

If you’re looking for a cofferdam contractor near you, we have regional managers in all of the following UK cities: London, Birmingham, Manchester, Liverpool and beyond.

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A leading UK ground engineering specialist, focusing on multi-discipline excellence and value engineering. We design and deliver some of the UK’s largest ground engineering projects.

Our vision is to bring confidence to those constructing the landscape of tomorrow .

1947. Central Jutland, Denmark. Per Aarsleff borrowed 10,000 Danish Kroner from his father’s life insurance, bought an excavator, and founded Northern Europe’s leading contracting company.

Our biggest asset, our team is composed of the leading experts in ground engineering. Working with collaboration and cohesion at the core of our business, we can guarantee a quick and founded answer to all your questions.

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The projects that keep society running. Bridges, buildings, transit and rail facilities, embankment support, marine and offshore facilities, mines, airports, and water projects.

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