WP1140 - T5D Design Consultant
Key facts
- Estimated value
- £5,000,000
- Closing date
- 09 Jun 2026
- Contract starts
- 06 Aug 2026
- Contract ends
- 01 Dec 2026
- Buyer type
- Other public body
- Source
- Contracts Finder
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 clearance for the Heathrow Rail Tunnels. This improves safety conditions within Heathrow Rail Tunnels and improves resilience of systems. In addition, less maintenance and repair are required for the attenuator. Each attenuator is formed of four quadrants weighing around 1160 kg.
Review MEP systems along the airflow and advise replacement/modification to bring them up to compliance.
Surveys will be carried out by others (Employed by the Client) under the direction of the Design Consultant
Item Question Q1 Do you have experience with Underground rail network ventilation resilience?
Requirement: Ventilation Resilience Report required for the HAL Rail underground network. Q2 What capability do you have of air flow modeling for fans / attenuators etc.?
Requirement: Model the existing configuration with one fan operating, and both fans operating and then repeat the modelling with shaft sub divided to allow one set of attenuators to be replaced while the other is operational. Q3 What capability do you have of understanding the requirements for specifying replacement attenuators etc., Specifically considering the constraints of an operational rail network?
Note: - RIBA 5 onwards including construction is excluded.
Categories (CPV)
- 71320000 Engineering design services
Similar open tenders
Theatre Royal Plymouth - Architect-led Multi-disciplinary Design Team Services
Buyer: Theatre Royal Plymouth
Open tenderCloses 20 Nov, 202616 daysValue £750.00kSource Contracts FinderTheatre Royal Plymouth (TRP) are seeking an experienced Architect and Lead Designer-led multi disciplinary team to assist with the delivery of their Capital Programme - TRP Projects 1 and 2.
Footways Maintenance Survey (Lot 3) (2027)
Location: South EastBuyer: West Sussex County Council
Open tenderCloses 10 Nov, 20266 daysValue £60.00kSource Find a TenderWest Sussex County Council are seeking to and identify suitably qualified and interested organisations to obtain road condition data for the highway network for footways and remote cycleways during 2027.
A, B & C Road Conditions Survey (Lot 2) (2027)
Location: South EastBuyer: West Sussex County Council
Open tenderCloses 10 Nov, 20266 daysValue £90.00kSource Find a TenderWest Sussex County Council are seeking to and identify suitably qualified and interested organisations for the provision of A, B and C road condition surveys during 2027.
Multi-Disciplinary Consultancy Framework - Peterborough City Council
Location: East of EnglandBuyer: Peterborough City Council
Open tenderCloses 30 Nov, 202626 daysValue £30.00mSource Find a TenderThe Services required by the framework agreement, include but are not restricted to the following consultancy services (depending on which lot(s) is applied for, in respect of Peterborough City Council's corporate stock (properties): • Planning Consultancy • Disrepair Surveying • Retrofit Assessment/Coordination • Part
Unclassified Road Conditions Survey (Lot 1) (2027)
Location: South EastBuyer: West Sussex County Council
Open tenderCloses 10 Nov, 20266 daysValue £75.00kSource Find a TenderWest Sussex County Council are seeking to and identify suitably qualified and interested organisations for the provision of Unclassified Road condition surveys during 2027.
Multi-Supplier Framework Agreement for Management Systems Audit Services, Services Relating to Dispute/Claims Advice and Cost Estimation and Quantification Services
Location: ScotlandBuyer: Transport Scotland
Open tenderCloses 4 Dec, 202630 daysValue £14.40mSource Find a TenderTransport Scotland, on behalf of Scottish Ministers, has identified a need to procure services to support the delivery of infrastructure projects across Scotland. The services that have been identified include undertaking audits of Transport Scotland’s contractors' management systems (including their subcontractors) on