Case Study Overview
Red7Marine supported Mackley’s / Van Oord as part of its emergency flood prevention works in the historic town of Sandwich in Kent. The project, which was being carried out on behalf of the Environment Agency, needed to be completed quickly and efficiently as the town was at high risk of flooding, posing a safety risk to the public.
At a glance
- Location: Sandwich, Kent
- Plant used: Haven Seajack 4
- What we did: Working collaboratively with the Mackley’s / Van Oord team, we utlised our Haven Seajack 4 jack-up barge which enabled a 38T excavator with Movax and hammer attachments to operate from the water.
It had been identified that a short section of the River Stour’s wall (approximately 35m in length) was on the verge of ‘catastrophic collapse’, potentially leading to serious flooding in the town of Sandwich. This was putting the health and safety of the public at risk.
The Environment Agency required emergency works to construct and install a new anchored sheet pile wall, with a capping beam and new brick wall to match the existing vernacular.
It was important that the solution was delivered as quickly as possible. Part of this included the ability to provide obstruction free access via the water by using Red7Marine’s specialist jack-up barge. Ultimately, this greatly improved the speed by which the project could be delivered. In fact, the project was expected to take three weeks but thanks to our collaborative approach, it was completed in just one week.
The Haven Seajack 4 was used alongside the excavator to carry out a range of work, including installing concrete plugs and partially backfilling the sheet piles and existing wall, wielding and installing the waling to the back of the sheet pile wall and coring and stitch drilling to enable the ground anchor installation.
As a result of the time sensitive nature of this project, Red7Marine responded quickly and efficiently which enabled the works to be completed ahead of schedule, reducing the risk of flooding in the area.
Working collaboratively, the Red7Marine team worked closely with the Mackley’s / Van Oord team to complete these works safely.
Red7Marine’s Haven Seajack 4 was used in the project as a result of its ability to withstand harsh marine environments, providing a stable working platform.
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