The Camden Winding Vaults are a Grade II* listed structure and were built to house two large steam engines and winding gear used to pull trains up the incline from Euston, on the London-Birmingham Main Line. This was to avoid disturbing residents with the noise of steam-hauled trains.

As part of the HS2 route, the TBM tunnels from Euston Station will pass in close proximity to the existing vaults. As such there may be a need to carry out some mitigation works and there is a requirement to monitor the vaults during the tunnelling works. The project was to provide access to the underground structure to facilitate the initial surveys and investigation works, as well as ongoing monitoring works. The purpose of the project is to provide safe access to the underground structure to facilitate the initial surveys and investigation works, as well as ongoing monitoring works. In addition to level access scaffold the vaulted area is to be provided with lighting, ventilation, pumped drainage and fire detection system.

Temporary site lighting was provided by 110V linear LED luminaires, selected from Blakley Electrics, i-Site Intelligent Lighting System using pre-wired 3-core 4mm2 LS0H cable with Flori-67/3P sockets for additional temporary lighting where required to boost illuminance levels for the inspection purposes. Power supply is also required for a drainage pump to stop flooding of the vaults. Fire alarm and a ventilation system are also provided within the vaults to ensure safety of personnel carrying out inspections. We also provided for Form C temporary works design covering the MEP services.

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