Helix Heat Network Repair
Project Location:
Newcastle
Client Name:
Bring Energy
Project Description:
Valmech, part of OCU Group, was appointed by Bring Energy to carry out repair works to a leaking section of the district heating network at Corporation Street, Newcastle upon Tyne, adjacent to the Helix development.
The works involved investigatory excavation to locate and expose the leak, followed by mechanical repair or replacement of the affected pipework. Delivered within a live, public-facing environment, the scheme required secure site segregation, controlled access, permit-managed isolations and careful excavation in a utility-dense corridor.
Key Stats:
Excavation and repair of DN200 pre-insulated pipework
Two week programme including excavation, repair, backfilling and reinstatement
Delivered in live public environment
2 Weeks
Duration
Challenge
Locating and safely exposing the leak before confirming the final repair methodology
Delivering excavation works within a busy public-facing environment containing multiple existing utilities and services requiring secure segregation and controlled access
Implementing permit-controlled isolation of a live district heating network, requiring coordination, recording and client approval
Solution
Established a secure working perimeter using Heras fencing and controlled pedestrian access points
Utilised a combination of mechanical excavation, hand digging and vacuum excavation to safely expose the leak
Incorporated flexible temporary works design to allow excavation support if ground conditions or depth requirements changed
Coordinated all repair activities with the client through formal isolation permits, ensuring safe drainage and re-pressurisation of the network
Outcome
Successfully identified and enabled repair of the leaking district heating main with strict adherence to permit and isolation procedures
Ensured operative and public safety through effective site segregation and controlled access throughout the programme
Delivered high-quality reinstatement in line with urban highway standards
Supported continued operation and reliability of the district heating network serving the Helix development
