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Herbertingen–Isny railway
Overview
Native name	Württembergische Allgäubahn
Status	Leutkirch–Isny not in operation
Owner	Deutsche Bahn
Line number	4550
Locale	Baden-Württemberg, Germany
Termini	Herbertingen Isny
Stations	6
Service
Route number	752 (Aulendorf–Bad Wurzach) 753 (Sigmaringen–Memmingen/Hergatz) 754 (Aulendorf–Pfullendorf)
History
Opened	25 July 1869
Completed	15 August 1874
Technical
Line length	84.539 km (52.530 mi)
Number of tracks	1
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Minimum radius	573 m (1,880 ft)
Electrification	15 kV 16.7 Hz AC (Kißlegg–Leutkirch)
Operating speed	100 km/h (62 mph)
Signalling	PZB
Maximum incline	1.06%
Route map Legend km elev from Sigmaringen 0.000 Herbertingen 548 m to Ulm 1.914 Herbertingen Ort 560 m 3.200 Mieterkingen 8.997 Bad Saulgau 593 m 13.100 Hochberg 617 m from Schwackenreute 19.463 Altshausen (Keilbahnhof) 572 m 23.600 Steinenbach-Blönried 567 m from Friedrichshafen 28.012 Aulendorf 547 m to Ulm 37.487 Bad Waldsee 597 m from Bad Wurzach 45.345 Roßberg 651 m 48.146 Alttann 50.853 Wolfegg 677 m 55.600 Hahnensteig-Krumbach from Hergatz 57.700 Kißlegg 651 m 60.400 Reipertshofen 63.400 Gebrazhofen 66.000 Heggelbach 68.612 Leutkirch (Keilbahnhof) 652 m to Memmingen Rauns Eschach 73.800 Urnau 74.000 Urnau yard (from 1976) to Urnau munition facility (1935–1948) Eschach 77.300 Friesenhofen (until 1976) 80.800 Aigeltshofen (until 1976) Untere Argen (34 m) from Kempten 84.539 Isny 697 m Source: German railway atlas

The Herbertingen–Isny railway (also known in German as the Württembergische Allgäubahn or Württemberg-Allgäu-Bahn—Württemberg Allgäu Railway) is a single-track railway in the German state of Baden-Württemberg. The Leutkirch–Kißlegg section is part of an upgraded long-distance route between Munich and Lindau, which was completed in 2020.

The line is operated by Deutsche Bahn’s subsidiary DB ZugBus Regionalverkehr Alb-Bodensee under contract to Nahverkehrsgesellschaft Baden-Württemberg (NVBW), an agency of the government of Baden-Württemberg responsible for providing public transport.

The line originally connected Herbertingen on the Danube with Isny im Allgäu, but the section from Leutkirch to Isny is closed. Originally it was 84.539 kilometres long and classified as a main line, but the section that is now closed was later reclassified as a branch line. The Kißlegg–Leutkirch section was electrified as part of the upgrading and rerouting of the main line between Munich and Lindau, which was completed in December 2020. The Herbertingen–Aulendorf section used to be part of the so-called Zollernalbbahn (Zollernalb Railway) from Tübingen to Aulendorf.

History

In 1860, a so-called Eisenbahn Comite (railway committee) was established with the aim of having the cities of Leutkirch and Isny connected to the network of the Royal Württemberg State Railways (Königlich Württembergischen Staats-Eisenbahnen). On 13 August 1865, the lower house of the parliament of Württemberg (württembergische Abgeordnetenkammer) finally approved the construction of a line from Herbertingen via Saulgau, Aulendorf, Waldsee, Kißlegg and Leutkirch to Isny. This was opened in five sections as follows:

The new line connected with the Ulm–Friedrichshafen railway, running from Ulm to Lake Constance in Aulendorf, making it an important railway junction for Upper Swabia. The line crosses the main European watershed between the Rhine and the Danube at the former Reipertshofen station at a height of 658 metres.

Further development

After the Leutkirch–Memmingen railway was opened in 1889, the section from Leutkirch to Isny lost its importance in terms of traffic and was consequently reclassified as a branch line in 1890. The last section was always lightly used as few passengers used its en route stations, all three of which were at some distance from the settlements they were intended to serve:

• Urlau station was about 600 metres from the centre of the municipality of the same name,
• Friesenhofen station was about 1300 metres from the centre of the municipality of the same name,
• Aigeltshofen station was about 1000 metres from the centre of the municipality of Rohrdorf. Aigeltshofen itself is only a hamlet.

In addition, the terminus in Isny was about 900 metres from the market square. The last section became more important, at least for freight traffic, when the Wehrmacht began to build the Urlau ammunition factory near the line in the Urlauer Tann forest in 1935. A 2.5 kilometre-long connecting railway was built from Urlau to the grounds of the ammunition factory. Extensive track systems were laid within the restricted area, including five loop tracks. The new infrastructure installed to carry out the numerous shunting movements meant that Urlau station was reclassified from a halt to a full station. Although the siding was dismantled in 1948 at the behest of the French occupation troops, the newly founded Bundeswehr resumed military traffic as early as 1961, although the ammunition was now reloaded onto trucks in Friesenhofen to be transported to the ammunition depot.

A serious accident occurred near Kisslegg on 26 June 1973. A school bus collided with a detached locomotive at a level crossing protected with flashing lights after the bus driver disregarded the flashing light. Seven people were killed and 13 injured.

In Herbertingen, Herbertingen Ort (town) station was opened nearer the centre of the town before the Second World War because the junction station is poorly located. The best-known train on the line was the Kleber-Express, a Heckeneilzug ("hedge express", that is a service that stops at every station in rural areas) from Freiburg to Munich, which ran from 1954 to 2003.

Gradual closure of the Leutkirch–Isny section

On 1 June 1969 with the beginning of the summer timetable, passenger traffic between Leutkirch and Isny was discontinued and taken over by Bahnbus, the bus division of Deutsche Bundesbahn. The operation of freight traffic ended on the line and the Friesenhofen–Isny section was closed on 30 May 1976, again at the beginning of the summer timetable. Only the Leutkirch–Friesenhofen section continued to operate due to the extensive military traffic to the Urlau ammunition facility. Immediately after the line was cut back, Deutsche Bundesbahn began to build a loading point a little south of Urlau station for military traffic. When it was put into operation on 7 December 1976, the Urlau–Friesenhofen loading point was closed and the ammunition was now reloaded in Urlau. The loading point was also used for civilian traffic. The line to the Urlau loading station was only a siding of Leutkirch station from 1976. Nevertheless, it was extensively renovated between 1990 and 1993. At that time it received both a new track base and new rails, as well as the kilometre boards used on modern main lines in Germany, which replaced the old kilometre stones. At the same time as operations began in the 1990s, military traffic declined with the end of the Cold War. The siding was seldom used and it was closed on 31 December 2001 and it was dismantled in the summer of 2004.

The southern end point of Isny, on the other hand, was still connected to the railway network via the Kempten line until 18 April 1983. The Leutkirch–Isny route is still served by buses on route 7551 operated by DB ZugBus Regionalverkehr Alb-Bodensee. Through tickets can still be purchased from any station in Germany to destinations on the former Leutkirch–Isny line.

In July 2020, the Baden-Württemberg Ministry of Transport announced that the Leutkirch-Isny line would be included in a study on reactivating local rail passenger transport.

Integration into the Allgäu-Swabia regular interval timetable

Under the Allgäu-Swabian regular interval timetable (Allgäu-Schwaben-Takt) introduced in 1993, passenger services on the Aulendorf–Leutkirch–Memmingen route became hourly. In the 2005 timetable services were thinned out to run every two hours—supposedly because of insufficient numbers of passengers. These figures are disputed. Studies show an increase in ridership of 386% on the Aulendorf–Kißlegg–Memmingen route between 1993 and 2003.

Since early 2005, there has been an initiative called Allgäubahn im Stundentakt (hourly services on the Allgäu railway) that aims to restore the hourly service on the line. It achieved a partial success in the timetable change in December 2005, with the restoration of some services for commuters and school transport. In October 2006, the Initiative Allgäubahn was founded to campaign for improvements to the perceived inadequate basic two-hour interval service for the cities and municipalities on the Württemberg Allgäu Railway and the Kißlegg-Memmingen line. The mayor of Kißlegg, Dieter Krattenmacher coordinated the initiative and as a first step commissioned an opinion from the Tübingen-based transport consultant Ulrich Grosse, who proposed a concept with buses no longer running parallel to the railway line, but instead running at right angles to it. This was realised in the 2007/2008 timetable change for Aichstetten and in the summer of 2008 for the Kißlegg/Bad Wurzach area.

Since the timetable change to the winter timetable of 2011/2012, the timetable has returned to an approximately hourly service, but there remain gaps in the less busy times of the day. Baden-Württemberg's new Minister of Transport, Winfried Hermann has continued to finance the additional services that are required because of the loss of revenue due to the failure of tilting technology, among other things.

Freight

In the 21st century, freight transport has been limited mainly to the delivery of raw materials for the Saint-Gobain glass plant in Bad Wurzach, with trains continuing over the Roßberg Railway. Gravel trains also operate in the summer and the Shell tank farm in Aichstetten-Altmann Mayrhofen is also served.

References

Footnotes

1. Eisenbahnatlas Deutschland (German railway atlas). Schweers + Wall. 2009. ISBN 978-3-89494-139-0.
2. Ritzau, Hans Joachim. Katastrophen der deutschen Bahnen – Teil 2 / Chronik (in German). p. 241.
3. Ministerium untersucht Reaktivierung der Bahnlinie Leutkirch - Isny. Official website of the town of Leutkirch. 16 July 2020.

Sources

• Peter-Michael Mihailesch; Matthias Michalke (1985). Vergessene Bahnen in Baden-Württemberg (in German). Stuttgart. ISBN 3-8062-0413-6.{{cite book}}: CS1 maint: location missing publisher (link)
• Thomas Scherer (1981). Eisenbahnen in Württemberg. Die württembergische Allgäubahn (in German). Vol. Band I. Ulm.{{cite book}}: CS1 maint: location missing publisher (link)

External links

• "Württemberg Allgäu line in 1944 timetable" (in German). Retrieved 26 November 2021.

• Railway lines in Baden-Württemberg
• Buildings and structures in Ravensburg (district)
• Buildings and structures in Biberach (district)
• Railway lines opened in 1869