I have been working on the Hammersmith Flyover in London for over a year. The concrete bridge was built over 50 years ago and is being re-strengthened to last the same again.
Unfortunately, the 600m long flyover has to be closed regularly until the end of August so that precise work replacing bearings under the 15 piers can be carried out. The vibrations of the traffic passing over the bridge can cause sensitive monitoring equipment to be disrupted. This week has seen four night closures to begin the installation of 4 more bearings. Just three more to go!
Further details to follow over the next few weeks...