Overview
- The Besòs surged on Sunday, October 4, to about 936 cubic metres per second and 3.6 metres high, a record crecida that drove large volumes of vegetal debris downstream.
- Reeds, trunks and other plant material now completely obstruct the river mouth beneath the Sant Adrià rail viaduct, a condition documented by local group La Marea Verde and visible in recent footage.
- The Diputación de Barcelona reopened the park’s left bank while the right bank and the area under the viaduct remain closed pending targeted clearing operations.
- Adif says it has contacted the Agència Catalana de l’Aigua to plan a coordinated removal to protect the viaduct and guarantee R1 rail service, but it has not announced a start date and the Sant Adrià mayor has demanded an inspection and formal guarantees.
- City and regional officials note the incident renews long‑running calls to raise or replace the low viaduct to reduce future plug risk, a project that would require major engineering work and dedicated funding and that could reduce flood and service disruption for nearby communities.