Gas main diversions in the Harefield and Ickenham area
I would like to let you know about some work that will be carried out over the coming months in your area
ahead of construction of the new railway, High Speed 2 (HS2). To allow construction of the new railway,
we need to move an underground gas pipeline.
To do this, we will be installing a new pipeline from south of the existing Chiltern Mainline (‘southern
shaft’) to join the existing pipeline to the south-east of the Dogs Trust on Harvil Road (‘northern shaft’).
The pipeline is an important supply for London and we need to carry out this diversion to continue to
ensure a safe and reliable gas supply to the area. While we do not anticipate these works to cause any
major disruption or for there to be any effect on local gas supply, we recognise the disturbance this work
can create and apologise in advance.
The work will be carried out as follows:
1. In mid-August 2017 HS2’s Contractors, will be undertaking works to prepare for installing the
pipeline. This will include vegetation clearance and archaeological works.
2. Murphy, a contractor working on behalf of Cadent Gas who owns the pipeline, will start work on
installing the pipeline in late August 2017. The work is expected to be completed by autumn
Most of the work involves boring underground although some equipment will be visible from Harvil Road.
While the tunnel boring machine is operating, we may need to work 24-hours a day. However, as this work
is underground we do not anticipate any noise or disruption for local people, although you may notice
people on-site during the night or in the early hours of the morning.
4 August 2017