Articles & Case Studies

Haseley Rising Main replacement solved in record time by NMCNomenca

Posted: Friday 29th April 2016

Utilising trenchless technology and working collaboratively has proved successful in delivering this emergency scheme, with customer impact significantly reduced.

Residents of Five Ways Road, Haseley nr Hatton in Warwickshire have been suffering for some time from a defective sewage pumping main with a history of bursts. Each burst resulted in local pollution, and disruptive road closures and tankering operations whilst repairs were carried out. After another serious burst towards the end of last month, Severn Trent Water made the decision that the pipe was in need of an entire replacement.

NMCNomenca were contacted by Severn Trent to carry out the emergency replacement works to the 840m long rising main as quickly as possible. Within one week, NMCNomenca were mobilised on site to carry out the replacement of the defective pipeline. The majority of the new pumping main was installed by trenchless methods using a directional drilling system to reduce overall construction time and impact on nearby residents.

Within 2 weeks of starting on site, the new sewage pumping main was installed, tested and put into service. This is a remarkable achievement, and demonstrates the benefits of collaborative working and planning. By close co-operation between Severn Trent Asset Creation and Service Delivery, the NMCNomenca Infrastructure Team, and Warwickshire County Highways; who organised an emergency road closure to enable the works to be carried out safely.

Although Five Ways Road is a narrow carriageway, by adopting trenchless methods and careful siting of drive and reception pits, the team were able to maintain access to all residents' properties throughout the project, significantly reducing the impact on customers. Whilst on site, the crew carried out environmental improvements at a nearby residential school for bullied children, resulting in sincere thanks from the Chair of Trustees who praised the team for their helpfulness and positive attitude.

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