Natta Building use Perfect Manhole system in Covent Garden Plaza project

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Natta Building, the progressive independent contracting group were appointed as subcontractor for the New Covent Garden Plaza project in Covent Garden, for the Vinci/St Modwen joint venture

The £5.5m project was split into four works packages. All of which have been undertaken whilst the world-famous market was open, which required considerable interface with all stakeholders involved, including stallholders and tourists, all of whom took a keen interest in what was happening.

With such a prestigious project being undertaken, Natta Building looked at how they could use the latest innovations and modern methods of construction (MMC) on the project and turned to Marshalls CPM and their Perfect Manhole system in the design of the pipeline.

With a 120-year design life, the bespoke precast concrete Perfect Manhole will still be working; hidden under the busy market area where thousands of locals and tourists walk every day long after the project is complete.

James Hibberd of Natta Building said: “We chose to use the Marshalls CPM Perfect Manhole system as the use of the integral cast-in, high-performance seals maintain water tightness and decrease the time taken to install the manholes. So, they are completed faster and because the bespoke inlet and outlet benching is made off-site at the Marshalls CPM factory, the manhole construction is closed quicker on-site. They’re great! As there is limited time in the manhole construction compared to the traditional manhole, it benefits our site personnel which in turn optimises the health and safety of our team onsite.”

The landmark 10-year project is the largest of the Nine Elms regeneration area, and will see the delivery of 500,000 square foot of new state-of-the-art market facilities across a 37-acre site which will house the 200 market businesses currently employing around 2,500 people.

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