Overview

• Regional authorities say the full service will return in November 2025 after three years of closure caused by severe subsidence under San Fernando de Henares.
• Works included injecting roughly 11,000 tonnes of mortar, waterproofing 5.6 kilometers of tunnel, and installing concrete columns to tie the tube to deeper strata.
• A 511-sensor network provides daily stability readings, complemented by a Universidad Politécnica de Madrid satellite program, with €2.5 million assigned for monitoring and €6 million contracted for maintenance.
• The Transport Department reports €120 million spent on works and nearly €180 million including compensation, with €11.5 million in indemnities paid and 37 claims pending before the regional high court.
• The area where more than 70 homes were demolished is being rebuilt as public space set to include a park and new streets, with completion targeted for 2026 and an urban budget of €11 million.