Nomenca - Uttlesford Bridge

Project Overview

Uttlesford Bridge is a major treatment works supplying Saffron Waldon and surrounding villages. The plant was dated and was causing nuisance maintenance issues. Nomenca's client, Affinity Water, wanted to replace the dated equipment with a new, more efficient system. It was essential that the plant remained operational until the new process had been commissioned and 'proven'.

The use of innovative technology has massively improved the delivery of this project right from the start. Initially Nomenca undertook a 3D laser scan of the site in order to capture all of the assets using a FARO focus scanner. Nomenca also produced a full utility survey of the underground services using a ground penetrating radar (GPR), meaning that even prior to the scope of works being confirmed Nomenca were able to provide the client with a virtual reality view of the site following an extensive site survey.

The 3D model was imported into Nomenca's virtual reality software, and showcased to the client at final review meetings, to the construction teams for constructability reviews, and even to the local residents and council for planning application meetings.

The fact that Nomenca used their innovative SAFE approach to construction meant that the design and development of a 20m x 4.5m chemical treatment plant could be fully built and tested in our construction facility, prior to being transported to site. The treatment plant consisted of, fill points and panels, storage tanks, dosing rigs, sample boards, UV reactors, pipework, structural steelwork and a main site MCC. It is the biggest of its kind in the country. This innovative approach to offsite construction means that products are produced in a safe environment resulting in a reduced programme of works, improved health and safety, and reduction in wastage of raw materials.

Accompanying the SAFE approach to construction was the use of precast concrete supports for the treatment plant which Nomenca were able to fit straight into the ground rather than pouring them onsite. There was no requirement for a concrete base to be poured for the treatment plant as a base had been included as part of the construction, meaning that when it was transported to site it was simply placed onto the pre cast supports. Nomenca also initiated the use of the Saint Gobain 'Universal Rapid Vi Pipe' which with its innovative gasket and steel teeth can withstand the high water pressure produced around bends without the need of thrust blocks.

The open, legible and welcoming architecture of the building and dramatic central timber roof support the innovative teaching facilities provided within.

 

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