The bridge is closed to traffic this weekend as two huge cranes put in place a 28-metre, 75-tonne piece of steel.
The Jean-Pierre Buchler bridge in Luxembourg City's Quartier de la gare is to become a multimodal bridge, i.e. a structure which can be used by pedestrians, cyclists, buses, cars, and trams.
Work has been underway since January 2019, but the site entered a delicate phase this weekend with the installation of a gigantic piece of steel that will be used to widen the bridge.
Two other similar pieces will be installed over the next two weekends.
This work is necessary for the tram to be able to use the bridge as part of the extension of the line to Cloche d'Or.
The work will involve closing the Jean-Pierre Buchler bridge to traffic between Place de la Gare and the access roads to the southern ring road.
It should be completed by the beginning of 2022.