Athens – Thessaloniki railway modernisation (PATHE)

Upgrade of the existing line from the Acharnes Railway Centre (SKA) to Oinoi station: widening of the formation within the existing corridor, loading gauge to current standards, freight passing loops, a rebuilt Oinoi junction station and new stops at Kryoneri and Oinofyta. ERGOSE gives about 52 km and reports the project at design stage; its page is undated. The length recorded is the OSE Network Statement 2020 figure for the SKA – Oinoi route.

New double track from Tithorea station east through the Kallidromo twin tunnel and across the Spercheios plain to Lianokladi station, with the new Molos station. ERGOSE gives each bore as 9,036 m; Greek Wikipedia gives 9,259 m and 9,262 m (km 169+608 to 178+878). GEK TERNA lists the Kallidromo tunnel among its projects, built in a joint venture whose partners it does not name. No length is published for this part alone: 55 km is the OSE length of the new Tithorea – Domokos line (107.33 km) less the 31 km and 21 km ERGOSE gives for the two later openings. ERGOSE puts the cost of the whole Tithorea – Domokos section at about EUR 1.8 billion, not split by part, and dates the start of construction of the section to 1997; the line was completed under contract no. 635, which covers the whole section.

New double track from Lianokladi station through the Othrys twin tunnel to the Xyniada plain and the Aggeies stop, with the new Agios Stefanos (Xyniada) station listed by OSE; 10 railway bridges. Put into service on 7 January 2019. ERGOSE describes the tunnel as 7 km (its project page says 6,380 m per bore); Greek Wikipedia gives 7,036 m and 7,045 m (km 235+624 to 242+669) and dates the start of tunnel construction to 1998. ERGOSE's 1997 construction start is for the whole Tithorea – Domokos section, so none is recorded for this part. Cost is part of the roughly EUR 1.8 billion ERGOSE gives for the whole Tithorea – Domokos section.

Last missing part of the new Tithorea – Domokos line, from the Aggeies stop via the Thavmakos stop to Domokos station, crossing the SG26 steel arch bridge (404.80 m) at Ekkara. Opened on 29 January 2019 with diesel trains; ERGOSE planned electric operation of Lianokladi – Domokos by the end of February 2019. Cost is part of the roughly EUR 1.8 billion ERGOSE gives for the whole Tithorea – Domokos section; its 1997 construction start is also for the whole section, so none is recorded for this part.

Rebuilding of the double track from the exit of Domokos station (km 288+600) to the entrance of Krannon station (km 328+840) after storms Daniel and Elias in 2023: formation and track, slope protection, drainage, and a temporary bypass of about 2.5 km. Tendered on 11 December 2024; contract signed 28 April 2025 for 15 months. A completion certificate was issued on 31 August 2026, but trains between Domokos and Larissa still ran on a single track in late September 2026 while work continued. Signalling, ETCS and electrification between Palaiofarsalos and Krannon are restored under a separate tender with a budget of EUR 37.2 million (including VAT). Length is the difference between the two chainages.

New double track of about 35 km from Evangelismos station to Leptokarya station, replacing the line through the Vale of Tempe and along the coast at Platamon. Slab track was used for the first time in Greece in the Tempi area. Two tunnels of about 8.3 km in total, 4 cut-and-cover sections of about 1 km, 21 railway bridges; stations at Rapsani, Neoi Poroi and Leptokarya and a stop at Evangelismos. By OSE chainage the two end stations are 41.7 km apart (km 369+000 and 410+700).