International Rhine Regulation Railway

International Rhine Regulation Railway
The railway bridge at Kriessern in 2011, photographed from Switzerland with Austria in the background
Overview
LocaleAustria, Province of Vorarlberg
Switzerland, Canton of St Gallen
Technical
Line length25 km (16 mi)
Track gauge750 mm (2 ft 5+12 in)
Electrification750 V DC
Route diagram

Alpine Rhine
canal mouth
Lustenau depot
Wiesenrain bridge
Widnau depot
Wiesenrain
Heerbrugg–Diepoldsau tram
closed 1956
Unterklien quarry
Kriessern
Kadelberg quarry
Koblach
Kolbenstein quarry
Montlingen

The International Rhine Regulation Railway (German: Internationale Rheinregulierungsbahn) was an industrial railway situated on both banks of the Alpine Rhine canal to the south of its outfall into Lake Constance. As this stretch of the River Rhine forms the border between Austria and Switzerland, the railway is located in both countries (further north the border follows westwards along the Alter Rhein). Large parts of the system have been preserved, and part of the tracks are used as heritage railway.