State authorities reported that civil works for Monterrey’s Metro Lines 4 and 6, including the extension toward the airport, were 85% complete on October 12. Metrorrey director Abraham Vargas separately said the viaduct on the original routes was 97% complete.
Those are different measures: the 85% covers civil construction across both lines and the airport extension, while the 97% refers to the viaduct on the original routes. The state separately put station progress at 60%.
Stations may open in stages after safety checks
Milenio reported that Metrorrey is considering progressive service once required testing is complete. Reporte Indigo says the 21 new stations could open in stages after safety reviews; no service-start date has been set.
- 85%: civil works for Lines 4 and 6, including the airport extension.
- 97%: viaduct progress on the original routes.
- 60%: station progress, according to the state.
- 21 new stations may open in phases after safety reviews.
- No calendar date for service start has been announced.