T5D Rail Tunnel Ventilation Shaft Attenuator Replacement
Costain Limited (H7-Heathrow) · United Kingdom
Time Left to Bid
Closed
Basic information
- Reference number
- C4N113536520
- 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
- e2e89ebe-cb92-4ba4-9e90-1788e7eaa3ad-900115
Details
- Location
- United Kingdom
Summary
Complex infrastructure project to replace end-of-life attenuators in a critical rail tunnel ventilation shaft at Heathrow Airport. The project involves surveying, design, and replacement of four quadrant attenuators to enhance safety, prevent debris entry, and improve ventilation system performance.
Description
Expression of Interest T5D MEP Subcontractor T5D Attenuator Overhaul (Survey / RIBA 4iii) Scope 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 sta...
Dates
- Publication
- 2026/06/02 09:30:03 AM UTC
- Closing date
- 2026/06/09 08:34:00 PM UTC
Estimated value
$5.0M – $1.5M GBP
How to bid
Classification
Normalized category