Three nights of work are necessary to demolish the pedestrian bridge which spans the A15. The footbridge was built at the time of the creation of the highway, in the early 1970s.
It had been closed since 2014, for security reasons. If traffic can be restored less than three hours later, a page in the history of Sannois has been turned. The two cranes of 250 and 350 tonnes assembled for the occasion handle the end of the bridge weighing more than 80 tonnes, in impressive silence.