Norwich to Wymondham pipeline

We’re building a new network of interconnecting water pipelines, including a pipeline from Norwich to Wymondham.

 

Click here to see a map of the route

 

We shared the route of the 12.5km pipeline, which will start near Little Melton - to the east of the Norwich Southern Bypass - and will end at the existing High Oak reservoir, in Wymondham, in our March newsletter.  

 

It will connect into our existing water network to ensure we can continue to meet demand from population growth in the area, and to replace the supply from local ground water sources, which are subject to environmental restrictions from April 2022. 

 

What have we done so far? 

 

Between April and May this year we completed our ground investigation work, which helped us decide the best route for the pipeline. 


In April 2021, we submitted a request for an Environmental Impact Assessment (EIA) screening opinion to South Norfolk Council, requesting confirmation that the pipeline can be installed using the statutory permitted development powers we have as a water company. The request was granted in August 2021.

 

We will also be applying for planning permission for the construction of the pumping station at Little Melton in the next few weeks. 


Throughout our work on this pipeline, we have engaged with the affected landowners and have used their feedback to inform our processes moving forward

 

What happens next?

 

We have started to prepare areas along the route of the pipeline so the main work – specifically, laying water pipes – can begin.   
  

This is known as 'enabling work' and includes setting up compounds where staff and equipment will be based. We will have one main Compound which will be located very close to the High Oak Water Treatment works at Wymondham.  

 

There will be some smaller areas, known as laydown areas, which will be used to store sections of pipe and other construction materials and equipment which may include welfare cabins. These have been strategically placed along the route. 

 

The main compound and laydown areas will have secure perimeter fences and working sites will have some security or safety lighting which will be used as required. 

 

Click here to see our planned compound locations on a map. 
 
We will also be creating access for our teams to work, building fences and putting up safety signage. Our work has meant the removal of a small number of hedgerows. We have installed specialised camouflaged fences to ensure bats, who use hedgerows for navigation, don’t lose their way. 
  
Construction – which includes laying pipes and the creation of temporary storage lagoons – will start in the autumn of 2021. 

 

One innovation will be the use of a "pipe plough", which cuts through the ground and lays pipe at the same time.

 

It will mean there aren't any open excavations, reduce the space we need to work (to a maximum of 15 metres), quicker installation and a significant reduction in our carbon footprint. 

 

Traffic management

 

We have worked hard to keep disruption to a minimum but, to ensure the safety of our teams and of road users, traffic management will be in place at various points. Click here to see a map showing the impacted areas. 
  
We will be using several techniques, so we are able to keep traffic flowing, including temporary two-way traffic lights and roads cones to section off small areas of a carriageway. 
  
There will also be a limited number of temporary road closures. They will have an official diversion route which will be clearly signposted.  
  
We have worked closely with South Norfolk County Council’s highways department to minimise the impact.  
  
Access for residents will be maintained throughout and where closures are in place, diversions for road users will be available. Please look out for the advance warning signs which will be in place prior to the roads closing.  
  
You can keep up to date with all our planned traffic management on the ‘In Your Area’ section of the Anglian Water website, here.   

 

Contact Us

 

If you would like to contact us about the pipeline or have any questions or queries about our planned work, please email strategicpipelines@anglianwater.co.uk. 

 

Frequently Asked Question (FAQs)