Selly Oak Bypass, Birmingham, UK

Detail feasibility study for construction of new structures under existing railway and canal and an Alternative Bridge Design
Birse Rail / Birmingham City Council

Tony Gee was initially employed by Birmingham City Council to undertake a feasibility study into the construction of a 100m long tunnel to carry the proposed Selly Oak Bypass through the 14m high embankment supporting both the Birmingham to Gloucester railway line and the Worcester to Birmingham Canal.

The project was then successfully tendered as an Early Contractor Involvement scheme and Tony Gee teamed up with Birse Rail to bid for the work.

As well as spending time on the design and pricing of the compliant tunnel, Tony Gee developed an alternative bridge design solution based on two 70 metre long, three-span reinforced concrete decks. This provided significant construction benefits as well as an elegant architectural solution and a more appealing environment for pedestrians compared to the tunnel.

Top-down construction, careful phasing of the works upon the existing embankment and a temporary canal diversion combined to minimise disruption to this busy transport corridor. The bridge supporting the railway was constructed offline and moved into its final location on transporter during a possession.

Quick Links
 A40 Western Bridges