Following the identification of structural weakness in the cables supporting it, the popular and much used Hammersmith flyover in West London was closed to traffic in both directions.
The impact on traffic was immediate with widespread traffic jams affecting West London, and along the diversion routes.
The problem seemed to stem from water leaking into the structure, particularly salt water (from de-icing salt laid during the winter), causing corrosion and weakening the supporting cables.
On 13th January, the flyover was reopened partially, following a thorough assessment of the damage. One lane in each direction was opened to allow cars, vans and other light traffic to pass. Lorries and larger vehicles were still blocked from passing due to safety concerns and a 6"6' width restriction put in place to assure this.
TfL's assessment work has identified further work requirements to strengthen the key sections of the flyover. This is likely to take upto four months after which it is hoped Hammersmith flyover can be fully opened and operate as normal.