This section of trail parallel to the River Besós collapsed with the flooding of the river in April 2020. You can go through it, just walking, but you have to juggle.
Before the disaster, it was very good to go jogging or on an MTB bike connecting the end of the Riera de Tenes with the River Besós, without having to go through Avenida de Can Prat de Mollet del Vallés, which is a paved street with a polygon , which I always try to avoid in any sports discipline of my outings.