HS2’s six 450m Old Oak Common platforms: integration notes for engineers
Reviewed by Tom Sullivan
First reported on New Civil Engineer
30 Second Briefing
HS2 has completed six 450m-long high speed rail platforms at Old Oak Common station, forming the core of what is planned to be the UK’s largest new rail hub. The platforms are designed to accommodate full-length HS2 trains and interface with a complex multi-level station box that will sit beneath existing Great Western Main Line infrastructure. For geotechnical and civil teams, the works signal the transition from heavy excavation and box construction to fit-out, track installation and integration with surrounding tunnelling and approach structures.
Technical Brief
- Longitudinal drainage, cable routes and under-platform services must be threaded through a constrained box footprint.
- Structural design must accommodate dynamic loading from full-length high-speed trainsets at design line speed.
- Fire and evacuation strategy is influenced by the 450m platform length and multi-level station geometry.
Our Take
Old Oak Common station’s six long platforms sit alongside other recent HS2 Phase One milestones in our coverage, such as the completed viaducts on the southern approach to Interchange station (12 August 2026), signalling that key civil and rail systems interfaces are now moving from earthworks into operational layouts.
With HS2 Ltd currently seeking 10‑year professional services partnering arrangements (13 August 2026), the completion of major station infrastructure at Old Oak Common in the United Kingdom gives bidders a clearer view of the remaining design and integration workload, particularly around systems, passenger circulation, and urban realm tie‑ins rather than core structural works.
The scale of Old Oak Common as a multi‑platform hub reinforces a pattern in our Infrastructure database where HS2‑related pieces dominate UK rail project coverage, indicating that contractors and consultants able to demonstrate delivery on this node may have an advantage in subsequent HS2 and wider UK station upgrade competitions.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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