Ecobuild show preview; Flood control

Home protection enhanced as Polypipe delivers flood alleviation solution to Kidderminster estate

complete attenuation solution for the £1.3 million Kidderminster Linnet Rise Flood Alleviation Scheme. The lack of capacity in the area’s existing


highway drainage network placed many properties on the residential area of Linnet Rise at risk of flooding, with the consequences most recently seen in 2007, when thousands of pounds’ worth of damage was caused by a flood, following torrential rain. The scheme was designed to ensure a collaborative approach to solving the area’s

flooding issues by providing a SuDS system that would provide long term defence with minimal intrusion to the existing space. Polypipe was approached due to its extensive track record of successfully delivering attenuation systems for developers and contractors. Working closely with contractor NMCNomenca and Severn Trent Water, Polypipe supplied a complete prefabricated solution using Polystorm geocellular tanks, together with pipework, manholes and catchpits all manufactured off site. The solution would also allow the installers to negotiate the very tight parameters of the Linnet Rise site, where space to maneuver plant equipment would be a challenge.

olypipe, one of the UK’s leading manufac- turer of sustainable drainage and water management systems, has supplied a

housing estate. These tanks will safely store flood water in the event of surface water sewers reaching capacity following heavy downpours, before releasing water back into Severn Trent’s watercourse once the downpour has subsided. The two tanks were laid at a 1 in 150 gradient

The solution delivered by Polypipe and

NMCNomenca retrospectively addressed the site’s drainage issues for the long term, while keeping installation time and disruption to a minimum, showcasing the capabilities that Polypipe can offer when improving the standards of flood protection in heavily populated areas. Polypipe’s system was also fully adopted by Severn Trent Water. The final design saw the installation of two

Polystorm geocellular tanks at a depth of 3.2 metres, under two resident owned car parks on the Linnet Rise site, providing 366m3

and 479m3

of storage respectively. The tanks were formed using Polystorm cells, which boast a 95 per cent void fill ratio. This solution maximised the tanks’ storage volume within the limited space available for an attenuation system on this compact

across both length and width, to facilitate draindown to the primary inlet and outlet located in the bottom corner of the crates. This will ensure that any sediment entering the tank from the surface water sewer is flushed out through the same flow path. Three channels were also installed in each tank, to promote water flow dispersal throughout the geocellular crates and provide inspection points along the length of the tanks, which are accessible via six specialist access turrets located outside of the site’s car parking bays. Polypipe’s ability to design and manufacture

pipework, manholes and catch pits off site provided the perfect solution to the project’s limited working space and the need for quick installation. The supply of high quality parts, designed to the project’s exact specification and delivered directly to site, meant that the system could be installed in a single day, reducing both contractor costs and disruption for local residents.

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BBACIT, the UK’s leading expert authority on Cavity Wall Insulation (CWI) and External Wall Insulation (EWI) products now provides essential training for Local Authority and Housing Association staff on how to achieve technically compliant installations, with an in-depth understanding of the circumstances which need to be in place to be assured of a successful retrofit project. Our courses cover a number of essential areas including:

• Detailed information about the range of certified CWI and EWI products which are available for retrofit programmes.

• Comprehensive information about installation methods and pre-installation assessments.

• An insight into determining the source of a potential insulation retrofit failure and what to consider

• Guarantees – pitfalls and opportunities, what to look for and what to demand.

Our main aim is to provide you with a solid, fact based understanding of what to look out for, so that when you’re looking into insulation related housing stock investments, you’re going in with the knowledge that you’re making the right decisions.

Our rolling programme of courses are delivered throughout the UK and can be delivered in your place of work (minimum number of attendees 10).

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© 2018 BBA Consultancy, Investigation & Training Ltd. All Rights reserved. CIT is part of the BBA Group.

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