NuGen Properties

Super sewer enters testing phase

Progress on Acton storm tanks, as seen from the sky earlier this year

With the main tunnel and its connection tunnels now fully excavated and more than 85% of the construction work complete, the Tideway team is preparing to enter the testing phase.

During ‘system acceptance’ thousands of infrastructure assets will be checked to make sure that they function as designed.

As part of this, Tideway is seeking a contractor to undertake approximately 3,000 planned maintenance activities per year across 21 London sites, on mechanical & electrical (MEICA) and civils assets located at the surface and just below. The contractor will also be responsible for any reactive maintenance activities.

The super sewer’s main tunnel, its connection tunnels and shafts are not included in the scope of this contract.

Contract value is estimated at £7m per year for an initial 27 months, possibly stretching to 10 years.

Andy Forestiero, Tideway’s systems performance & maintenance manager, said: “We’re entering a new phase of works on Tideway as we continue toward our ultimate goal of cleaning up the River Thames for generations to come.

“And with this change of emphasis comes new opportunities. We’re fortunate to have worked with some world-class contractors on this job and I look forward to engaging with the market again to fulfil this unique opportunity.”

Assets that fall within the scope of this maintenance contract include ventilation equipment, pumps, penstocks, electrical equipment, instrumentation, civils structures, and more.

For more information, see

Albert embankment
Albert embankment

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Dan Morten 18/01/22

Easy to work with, Jordan and the team were professional and were easy to communicate with.
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Di Hayes 20/08/22

NuGen Properties built an extension to the rear of my property, replacing the old conservatory. I am so pleased I chose this company. From the initial quotation, through the build and after they were professional, polite & well mannered. They kept the site tidy throughout the build and kept me informed of each stage as it happened. The work was finished to a good standard and I have had nothing but compliments on their work. I am already planning for them to come back and do some more work for me in a few months. I would 100% recommend them.

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Nugen were fantastic throughout the works they carried out on my property, Jordan provided constant updates and ensure any questions I had were always answered. All works were completed in a timely fashion, on budget and exceptional customer service. Highly recommend!

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