Our work in Danescourt
We’re carrying out this work to facilitate growth in Cardiff, working closely with the local authority and the developer to ensure that the Cardiff wastewater network has the capacity to continue to serve the wider community as the development progresses. We have identified that the waste network in Llandaff North has sufficient capacity for us to transfer some of the flows into this network which will then be taken to Cardiff Wastewater Treatment Works to be treated.
We have looked at various solutions to do this. Where possible, some of the new properties will be connecting into our nearby existing sewers where there is sufficient capacity. Where this is not feasible, the only viable option is to pass flows into one of our existing trunk sewers which carries wastewater flows to Cardiff Wastewater Treatment Works.
To achieve this, we need to be able to cross the Cardiff to Radyr railway line and the River Taff, and we are working closely with both Transport for Wales and Natural Resources Wales in respect of this. The area behind De Braose Close has been identified as the most suitable workable location to do this with the civil engineering techniques that are required. Mobilisation work began in September 2023.
Our working area
Our work behind De Braose Close will be carried out next to the river Taff and railway line. We will have a temporary compound set up during this time, which is shown on the map below.
Our site was established in October 2023 and in November 2023 work in Danescourt got underway. Unfortunately, progress on site at Hailey Park has been delayed due to unforeseen circumstances. An ingress of water event occurred at the base of the shaft at Hailey Park, causing significant flooding and damage to the tunnel boring machine (TBM).
Following a thorough investigation with our tunnelling contractor, it has been confirmed that the damage sustained to the TBM cannot be repaired in its current location. As such, the machine will need to be removed from the tunnel and shaft for off-site repairs.
We currently anticipate that the work will resume in January 2026 and will provide an updated timeline when work is underway.
Construction traffic
There will be construction traffic travelling to and from the site on a regular basis. The amount of traffic will vary depending on the construction activities at the time, but we’ll do our best to keep this to a minimum wherever possible. All construction traffic will be travelling via Danescourt Way, Timothy Rees Close and De Braose Close.
Access track
We have previously carried out some investigatory work in this area to look at the ground conditions and confirm whether it would be suitable for us to do our work. To do this safely, we constructed a stone track from the end of De Braose Close into the working area. The access track took three weeks to build, so to minimise disruption to both residents and the local environment we have left this track in place in readiness for our work.
We were originally planning to make the access track permanent. However, after consulting with the community we have decided to remove the track and will fully reinstate the area to its original state once our work has been completed. However, should our operational team require access to our assets to carry out maintenance or access our assets in the event of an incident, then we will follow the necessary procedures in line with Water Industry Act 1991.
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