T5D Rail-Tunnel Ventilation Shaft Attenuator Replacement
Costain Limited (H7-Heathrow) · United Kingdom
Time Left to Bid
Closed
Basic information
- Reference number
- C4N113536273
- Issuing organization
- Costain Limited (H7-Heathrow) · Find award history →
- Government level
- Federal
- Solicitation type
- Construction & Infrastructure
- Title
- T5D Rail-Tunnel Ventilation Shaft Attenuator Replacement
- Source
- Contracts Finder (UK)
- Source ID
- 2a1ded63-c1d7-4984-9540-4dd819838020-900110
Details
- Location
- United Kingdom
Summary
Consulting project to design replacement of four end-of-life attenuators in Heathrow Airport's T5D rail tunnel shaft. The project focuses on improving ventilation system safety, reducing maintenance risks, and ensuring continuous operational resilience for underground rail networks.
Description
The T5D Rail-tunnel Ventilation Shaft is located adjacent to T5D at its North and can be accessed from the bottom (Level 6) via the trackside of the HEX tunnel or from the top (level 7) via Airside. The objective is to replace the four attenuators in the T5D Shaft because they are at their end of life. The renewal of the T5D attenuators aims to reduce the risk of debris entering fans, tunnels and station, prevent the fans from failing in any fire scenario and provide ventilation and smoke clear...
Dates
- Publication
- 2026/06/02 09:20:04 AM UTC
- Closing date
- 2026/06/09 08:34:00 PM UTC
Estimated value
$5.0M GBP
How to bid
Classification
Normalized category