Overview
- The City Council gave definitive approval to reconfigure Avinguda Diagonal between Passeig de Sant Joan and Plaça Francesc Macià to close the gap between Trambaix and Trambesòs, pairing the tram works with a major sewer collector upgrade.
- The plan schedules 40 months of construction and includes added greenery and a renewed bike lane, alongside doubling the underground collector to reduce flood risk from torrential rains.
- The vote split followed party lines, with PSC, Barcelona en Comú and ERC in favor, and Junts, PP and Vox against; all parties backed the collector upgrade except Vox, which abstained.
- Estimated costs total roughly €200 million, with about €110 million for city-side urbanization and around €80 million for rail infrastructure to be managed through the ATM.
- Officials expect the ATM board to decide on the rail project in April, with procurement potentially late 2026, collector works starting in the second half of 2027, and a possible full connection by mid‑2031, while the city also launched a separate €22 million Paral·lel revitalization program for 2026–2028.