The northern bridge at Junction 6 of the M42, Bickenhill Interchange in Solihull, is set to be demolished and rebuilt, National Highways has confirmed. The bridge, which has been closed to traffic since July 13 due to structural damage, will be knocked down during upcoming HS2 works to minimize disruption.
Structural concerns led to closure
The bridge, built 50 years ago, was initially subjected to a 7.5-tonne weight restriction after concrete damage and corrosion of steel reinforcements were discovered. However, further deterioration forced a full closure in July. Detailed assessments concluded that the bridge is at risk of further decline, and strengthening would not offer a long-term solution.
Ian Doust, head of network planning and development at National Highways, said: "Many of the motorways and structures we manage were built over half a century ago and now need renewing or replacing to ensure they remain fit for purpose. Safety has to be our priority which is why we closed the bridge when we saw such a rapid change in the condition of the structure."
Demolition timed with HS2 works
National Highways plans to demolish the bridge during a weekend when the M42 between Junctions 6 and 9 will already be closed for HS2 works, reducing additional disruption. A temporary bridge will be installed at the junction until a replacement structure is built.
Doust added: "Investigations showed that the most effective and efficient solution is to demolish the bridge and re-build it to modern standards to keep people and goods moving safely and reliably."
Impact on drivers and stakeholders
Current diversions around the bridge closure will remain in place until further notice. National Highways will continue to engage with stakeholders, including Birmingham Airport and the NEC, to provide updates so they and their customers can plan journeys. Further details on the demolition timeline will be announced soon.
