Cable Repair 4 Opt

Fulbourn to Sawston Cable Route

We are completing an upgrade to our underground electricity network between Fulbourn and Sawston. The project will maintain the future resilience of power supplies in the area and facilitate new connections to the network.

The project spans from our Fulbourn Grid Substation (which is close to Fulbourn Tesco) to our Sawston Primary substation (which is to the west of Sawston off the A1301). A summary of the proposals, along with a map showing the project area, can be found below.

The project, which is being delivered by Kier and M&M Contractors on behalf of UK Power Networks, is due to be completed by September 2024. Most of the cable route is being installed under the roads, and UK Power Networks is working with Cambridgeshire County Council, as the local highways authority, and other utilities providers to minimise any impact from the roadworks

In order to work safely, there may need to be temporary traffic lights and in some limited circumstances temporary road closures. We will write to nearby residents to advise in advance, and local signage will be in place ahead of working starting.

What new infrastructure is proposed?

The project will install three new 33kV circuits and will involve excavating trenches to lay pipework (ducting) and pulling though new underground cables. This approach allows us to keep excavations as small as possible. Once the pipework (ducting) is in place we will return to open excavations at intervals along the route to pull the new cables into position and join them to our electricity network.

Map of the Fulbourn to Sawston Cable Route area

The Stapleford temporary site compound

As part of the project we require a temporary site compound in Sawston. The site, to the east of Haverhill Road, will be used for the storage of plant and machinery. As well as technical equipment, we will have temporary offices and welfare facilities for our workforce.

Several alternative sites were considered before choosing the site on Haverhill Road. Alternative locations on Babraham Road and in Sawston were unsuitable due to safety concerns or availability issues. We also considered multiple locations on Haverhill Road with the chosen location the only option considered suitable by the local landowner.