Engineering works

As you might have noticed, this year will see plenty of engineering works and disruptions, including on major railways. Here is a (non-exhaustive) list, it will be updated regularly but we cannot follow all disruptions. Feel free to post your questions on r/Interrail too.

[last edit : 22nd August 2025]

Austria

Arlberg (Switzerland/Western Austria – Innsbruck)

6th October – 2nd November 2025: trains replaced by buses between Sargans/Feldkirch and Ötztal. EC Zurich – Graz and NJ rerouted through Germany.

For more: https://www.oebb.at/de/fahrplan/baustelleninformation

NIGHTJET

NightJet services from Munich & Vienna to Florence & Rome cancelled from 29.09.2025 to 13.12.2025. Services from Munich & Vienna to La Spezia operate as far as Milan only.

AUSTRIA/CZECHIA

Nothing major at the moment.

AUSTRIA/ITALY

See Austria above for Nightjet disruptions.

AUSTRIA/SLOVAKIA

(Vienna -) Marchegg – Bratislava

One of the 2 railways linking Vienna and Bratislava closed until 10th October 2025 for maintenance and electrification. Trains running via Kittsee.

https://www.oebb.at/de/fahrplan/baustelleninformation/wien-marchegg-bratislava

AUSTRIA/SLOVENIA

Villach – Jesenice

Closure on the following dates. Buses running. Night trains already rerouted with the Tauern closure (see above).

  • (4-5th October to be confirmed)

AUSTRIA/SWITZERLAND

Nothing at the moment. See above for Arlberg closures.

Belgium

Brussels-France HS1

16-31st August: high-speed line closed for maintenance. Trains are rerouted. Less capacity from/to Paris.

For more: https://www.belgiantrain.be/en/travel-info/current/ongoing-disturbances-and-works/ongoing-works

https://www.belgiantrain.be/fr/travel-info/train-network-travel-info/overview-2025

Czechia

For more: https://www.cd.cz/jizdni-rad/omezeni-provozu/ (note that even minor delays/disruptions are included)

https://grapp.spravazeleznic.cz

Denmark

Padborg – Copenhagen

For more info: https://www.bane.dk/-/media/Bane/Dokumenter/Jernbanevirksomhed/Netredegoerelse/2025/Bilag/3_5A-Kapacitetsrestriktioner-i-K25.pdf

For more: https://www.dsb.dk/trafikinformation/

https://www.snalltaget.se/en/traffic-information

Finland

Haparanda – Tornio

The works on the cross-border railway have been completed but trains will not run until 2026.

For more: https://www.vr.fi/en/on-track/planned-track-work

Real-time info: https://www.vr.fi/en/on-track/traffic-news

France

Ligne des Merveilles (Nice – Breil-sur-Roya)

This beautiful line is undertaking major maintenance works until 15th December 2025. Replacement buses run between Drap and Breil.
https://www.ter.sncf.com/sud-provence-alpes-cote-d-azur/se-deplacer/info-trafic/travaux/fermeture-nice-breil

For more: https://www.sncf-voyageurs.com/fr/voyagez-avec-nous/horaires-et-itineraires/informations-trafic/gl/

https://www.ter.sncf.com/auvergne-rhone-alpes/se-deplacer/info-trafic/travaux

https://www.ter.sncf.com/bourgogne-franche-comte/se-deplacer/info-trafic/travaux etc.

Similar pages exist for all regions, no nationwide (useful) page.

FRANCE/ITALY

Lyon – Turin (Paris – Milan)

Engineering works are planned on the Italian side of the line.

  • 4-6th October
  • 8-10th November (tbc)

Replacement buses are running between Bardonecchia and Bussoleno but this is not particularly convenient for international travellers.

Alternative routes include:

  • Paris – Zurich/Geneva/Lausanne – Milan
  • Paris – Nice – Ventimiglia – Milan
  • Paris – Lyon – Flixbus to Turin

Germany

Hamburg-Berlin

  • 2nd August 2025 – April 2026: full closure, one of the Generalsanierungen projects. ICEs rerouted via Uelzen = 45-60 min longer/50% usual service.

Berlin – Leipzig – Erfurt – Munich

  • 25th August – 8th September: line closed between Nürnberg and Bamberg. ICEs rerouted (+60-90 min travel time).
  • 24th September – 13rd December: line closed between Leipzig and Berlin (Anhalter-Bahn). ICEs rerouted (+45-60 min travel time).

Stuttgart-Zurich (Gäubahn)

  • 20-21st September: line closed between Oberndorf and Rottweil. Buses running between Singen and Oberndorf.
  • 26th July – 5th September: closure of the Stuttgart tunnel. Some ICs start/terminate in Vaihingen -> buses and U-Bahn available. Plan extra time.

Karlsruhe – Konstanz (Schwarzwaldbahn)

13rd September – 17th October, 15th November – 12th December: line closed between Villingen and Donaueschingen. Buses running between Villingen and Engen.
(1-5th, 22-27th October), 3rd November: line closed between Hornberg and Triberg.

Stuttgart – Munich

  • 23rd August, 14-30th September: line closure between Ulm and Augsburg. ICEs are rerouted (+60-90 min travel time).
  • 13th January – 6th February 2026: Ulm station closed. Expect diverted long-distance trains.

Karlsruhe – Freiburg – Basel

  • 4-5th October: full closure south of Freiburg. Hourly replacement buses. Times to be published.
  • 4-9th October: Karlsruhe – Durmersheim – Rastatt closed, divertions through Ettlingen.

Cologne – Bonn-Beuel – Koblenz (rechte Rheinstrecke/right-bank Rhine route)

  • weekend closures: 13-14th, 20-21st September, 8-9th, 15-16th, 22-23rd, 29-30th November

Other important works or disruptions in Germany

https://www.bahn.de/service/fahrplaene/bauarbeiten
https://karte.bahn.de/region/DB_Fernverkehr
https://strecken-info.de
https://www.zuginfo.nrw/index.html

Use the DB Navigator app. Timetables are generally correct or at least there’s an advance notice. Regional train timetables are usually adapted later.

GERMANY/AUSTRIA

Deutsches Eck (Munich/Innsbruck – Salzburg)

  • 15-18th November: full closure between Rosenheim and Salzburg. Expect the usual divertions (Zell am See and Passau).

GERMANY/BELGIUM

Köln (Cologne) – Aachen

  • 8-12th December: full closure. Expect divertions through Mönchengladbach (45-60 min longer travel time).

GErmany/Czechia

Dresden-Prague

The mainline is closed on various dates. Buses running between Dresden and Usti:

  • 20-26th September (8am-7pm)
  • 28th October – 6th November: night train from/to Zurich cancelled. European Sleeper might run as far as Berlin or Dresden (unknown).
  • 3-10th December: night train from/to Zurich cancelled.

Munich-Prague

  • 11-30th October: full closure between Regensburg and Schwandorf. Replacement buses running, allow extra travel time.

Germany/Denmark

For more info regarding long-distance trains, see Denmark.

GERMANy/Netherlands

Arnhem – Emmerich – Oberhausen

That line is upgraded until 2026. Frequent full closures. RE19 replaced by buses, ICEs rerouted via Venlo/M’gladbach.

  • 28th June – 24th August
  • 20th October – 2nd November
  • 6-7th December

https://www.emmerich-oberhausen.de/Material%20Mediathek/240325-Sperrpausen%20Kalender-ABS%202025-2026.pdf

GErmany/Poland

Berlin – Frankfurt (Oder)

Full closure on the following dates:

  • 20-21st October
  • 8-9th November

Direct buses running between Berlin Hbf and Frankfurt (Oder). Regional buses between Erkner and Fürstenwalde.

18-23rd October: closure across the Oder river too. Expect buses to Rzepin.

Hungary

HUNGARY/SLOVENIA

Budapest – Ljubljana (Citadella)

Partial bus replacement until further notice:
– Budapest <-> Őriszentpéter from 1st July to at least 13th December 2025 (4h journey)

Connections are guaranteed. For more: https://potniski.sz.si/en/rail-replacement-buses-in-hungary-from-11-december-2024-onwards-for-international-trains-246-and-247

Italy

Simplon (Domodossola – Milan)

Next full closures in 2025:

  • 30th August – 13th September
  • 4-5th October
  • 11-12th October
  • 8-9th November
  • 20-21st December

Direct buses between Domodossola and Milan run: 2h20 travel time incl. significant margin. Regional replacement buses as well. More details in the Trenord links further down.

In addition, throughout the year weekday 10am-3pm closures with less EC and regional trains. 2 buses Arona -> Domodossola, 1 back.

Milan – Tirano

15th June – 14th September: full closure between Lecco and Tirano/Chiavenna. Upgrading works for the 2026 Olympics. Buses run connecting to the trains.

Some 72h smaller closures as well throughout the year:

  • (26-28th September)
  • 10-12th October (Lecco-Colico)
  • 14-16th November (Lecco-Colico)
  • 19-21st December (Morbegno-Tirano)

Malpensa – Varese – Stabio (Lugano)

28th July – 24th August: line closed between Gallarate and the Swiss border.

Milano through line (Passante)

28th July – 24th August: the line between Milano Bovisa, Repubblica and Rogoredo is closed. Trams, subways and other options on hand.

Milan – Genova

21th July – 29th August: the bridge over the Po is under maintenance. Full closure between Voghera and Pavia.

  • Regional services every 2h between Milano Rogoredo and Genova P. Principe/Brignole
  • some Intercity trains rerouted through Piacenza
  • Buses Milano Centrale – Voghera – Pavia in connection to the remaining ICs

Bologna – Prato (Florence)

29th September – 14th December: classic line closed, not the high-speed line. Some buses running, otherwise rely on the frequent high-speed trains. Night trains rerouted.

Verona – Vicenza (- Venice)

22-23rd November: weekend closure.

5-25th August: full closure. Long-distance trains rerouted via the Bologna bypass, regional services via Cerea – Legnago.

Brescia – Verona

Works on connecting the high-speed line to the classic line. Weekend closures:

  • 4-5th October
  • 18-19th October
  • 1-2nd November
  • 15-16th November
  • 29-30th November
  • 6-7th December

Catania – Siracusa

1st September – 30th November: full closure. Augusta bypass works.

For more: https://www.trenitalia.com/it/informazioni/Infomobilita/notizie-infomobilita.html

https://www.rfi.it/it/rete/i-nostri-progetti/principali-interventi-lavori-programmati.html

https://www.trenord.it/news/cantieri/area-nord-ovest
https://www.trenord.it/news/cantieri/area-nord-est/
https://www.trenord.it/news/cantieri/area-sud-est/
https://www.trenord.it/news/cantieri/area-sud-ovest/

Luxembourg

Luxembourg-Bettembourg

Closure on most weekends as well as between 16th July – 14th September 2025. Very frequent buses running, simply plan enough margin.

For more: https://www.cfl.lu/fr-fr/works

The Netherlands

Brussels – Amsterdam

Engineering works are taking place on multiple weekends between Amsterdam and Brussels. Expect longer travel times. Tickets may be released later than usual.

Planned engineering works: https://www.ns.nl/reisinformatie/werk-aan-het-spoor/

Live information on disruptions: https://www.ns.nl/reisinformatie/actuele-situatie-op-het-spoor/

Norway

https://www.vy.no/en/traffic-and-routes/engineering-works-summer

https://www.vy.no/en/traffic-and-routes/traffic-info-for-train-and-bus

Slovenia

For more: https://potniski.sz.si/en/help-and-travel-updates/#rail-replacement-buses

Spain

About works: https://www.renfe.com/es/es/grupo-renfe/comunicacion/renfe-al-dia/avisos

Catalonia: https://rodalies.gencat.cat/es/alteracions_del_servei/afeccions_programades/

Sweden

For more: https://www.trafikverket.se/trafikinformation/tagkarta/ and https://www.trafikverket.se/trafikinformation/tag/

Switzerland

Laufental (Laufen-Aesch)

28th April – 28th September: closure for double-tracking. Buses every 15 min. Travellers between Basel and Romandie go via Olten.

Fribourg-Bern

28th June – 24th August: mainline closed, replacement buses running every 10 minutes. Travellers are asked to travel via Biel/Bienne-Neuchâtel.

For more: mostly follow the SBB app. Some press releases are also available on https://news.sbb.ch/medien/kategorie/3473/mitteilungen

SWITZERLAND/FRANCE

Basel – Saint-Louis/Mulhouse

  • all October weekends: line closed. Passengers asked to use tram 1 and 3 between Basel and Saint-Louis. TGV passengers will take buses between Basel and Mulhouse.

Turkey

Mersin – Yenice Branch Line

The line between Mersin and Yenice is being shut down starting from April 22, 2024 for a minimum of 24 months as part of HSR construction. During this time, the Mersin – Adana regionals will not run. The Mersin – İskenderun regionals will probably terminate at Yenice, but this is not confirmed as of April 5, 2024. No sleeper or mainline services seem to be affected at this time. TCDD will not offer any rail replacement services. Travelers wishing to visit or otherwise go to Mersin should take a bus to/from Yenice or Adana.

United Kingdom

For more: https://www.nationalrail.co.uk/status-and-disruptions/