JLE Tunnel Ventilation Control System
Status
Completed 2025
Project Type
NEC3 Design & Build
Project Duration
2022-2025
Project Value
£7.8m
Project description
The Jubilee Line Extension between Westminster and Stratford has been operational since 1999, the extension improves access for commuters from South-East to Central London. The new stations constructed consist mainly of deep-level platforms whereas those further East such as Canning Town, West Ham and Stratford are surface-level. The JLE stations now include a number of busy interchanges between other London Underground lines and National Rail such as Waterloo Station.
A number of the mechanical systems on this London Underground line now require a mid-life intervention to ensure they remain operational. This involves replacing life expired assets that are no longer maintainable due to the asset’s obsolescence.
Scope of Works
The scope of works comprised the following activities:
Delatim carried out a mid-life intervention of the Tunnel Ventilation Control System for the JLE consisting of;
- Restoring the redundancy of the current SCADA headend at Neasden and Stratford Market Depot.
- Updating the existing Graphical User Interface (GUI) for the SCADA to a more intuitive system in line with the recently completed NLE.
- Replacing all the major components in the field panels (LCP, MCC & ECP) with modern equivalents through backplate like-for-like replacement.
Key Details
- Location: London Underground Stations – Westminster, Waterloo, Southwark, London Bridge, Bermondsey, Canada Water, Canary Wharf, North Greenwich. LU Shafts/Portals – Wardens Grove, Druid Street, Culling Road, Durand’s Wharf, Preston’s Road, Canning Town Portal.
- Category: Public Sector
- Type of work: M&E
- Client: London Underground
What we did
Collaboration
Worked collaboratively with key project stakeholders, third-party contractors, and station/depot operational staff to ensure effective coordination and seamless delivery of the works.
Health and Safety
Implemented rigorous Health, Safety and Environmental (HSE) planning, ensuring all identified risks were appropriately assessed, controlled, and mitigated throughout the project lifecycle.
Programme Management
Developed and executed a robust programme of works to ensure all project activities were completed safely within restricted engineering shifts, with no disruption to the operational railway.
Logistics
Safe delivery of heavy and bulky back panels from street level to equipment rooms located within underground station sub-levels, requiring meticulous planning and close coordination with station operational staff.
Tunnel Ventilation Fan Isolations
Delivered safety-critical fan isolations across the network, coordinating key stakeholders while maintaining uninterrupted railway operations.
