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    BBV completes HS2’s tallest Curzon 2 bridge: lift and bearing lessons for engineers

    May 13, 2026|

    Reviewed by Tom Sullivan

    BBV completes HS2’s tallest Curzon 2 bridge: lift and bearing lessons for engineers

    First reported on New Civil Engineer

    30 Second Briefing

    BBV has completed assembly of HS2’s tallest bridge, Curzon 2, ahead of its planned weekend launch over a live rail corridor in central Birmingham. The structure, part of the Curzon Street station approaches, will be installed during a tightly constrained possession window over a busy existing line, requiring precise control of lift tolerances and rail clearance. For civil and geotechnical teams, the operation centres on managing crane outrigger loads, ground bearing pressures and real‑time monitoring to protect adjacent track and signalling assets.

    Technical Brief

    • Curzon 2’s status as HS2’s tallest bridge drives stringent stability checks during staged assembly and launch.
    • BBV’s pre‑assembly strategy away from the live corridor reduces work‑at‑height and rail‑adjacent exposure hours.
    • Interface management with the rail infrastructure manager requires detailed method statements, isolation plans and contingency sequences for over‑line operations.
    • Temporary works for the launch demand formal independent design checks under UK rail and CDM safety regimes.
    • HS2’s assurance framework obliges the contractor to evidence lift planning, exclusion zones and competency of all critical personnel.
    • Real‑time monitoring data are expected to feed into a live “permit to proceed” decision process during the possession.
    • Emergency recovery and abort procedures must be pre‑agreed with rail operators, including safe bridge stabilisation states.

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    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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