Overview
- From March 1 to 7, the Tigre branch will run only to Belgrano C and the José León Suárez and Bartolomé Mitre branches will operate to Belgrano R.
- Trenes Argentinos confirmed full service to Retiro will restart on March 8 following the testing and training period.
- Works included renewing about 29 kilometers of track, upgrades across 13 station sections, 16 level crossings and 12 bridges on the Tigre branch.
- The modernization forms part of the national Emergency Railway Action Plan and the Retiro signaling switchover is in its final stage after disconnecting the century‑old system.
- Overnight works will continue to limit daytime disruptions, with projected travel‑time cuts of roughly 10 minutes by mid‑year and up to 17 minutes by late 2026.