WP1140 - T5D Design Consultant
Costain needs design consultancy for replacing four end-of-life attenuators in the T5D Rail-tunnel Ventilation Shaft at Heathrow. The work includes reviewing MEP systems along the airflow path, advising on replacements or modifications for compliance, and modelling airflow configurations with different fan operating scenarios.
- Closed9 June 2026, 21:34
- Published2 June 2026
- Value£5.0m
- BuyerCostain Limited (H7-Heathrow)
- WhereT5D Rail-tunnel Ventilation Shaft, Heathrow
- CategorySurveying, architecture & engineering
- RegionLondon
You'll want to look if you have expertise in underground railway ventilation systems and can model airflow dynamics for attenuator and fan configurations.
You'll need
- Experience with underground rail network ventilation resilience
- Capability in airflow modelling for fans and attenuators
- Ability to produce Ventilation Resilience Report for HAL Rail underground network