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Höllentalbahn (Black Forest)

From Wikipedia, the free encyclopedia

Höllentalbahn
Hell Valley Railway
Overview
OwnerDeutsche Bahn
Line number4300
Termini
Service
Route number727
History
Opened21 May 1887
Technical
Line length74.7 km (46.4 mi)
Number of trackssingle track
Rack system1887 until 1933; now adhesion
Track gauge1,435 mm (4 ft 8+12 in)
Electrification1936 until 1960:

20 kV 50 Hz AC

since 1960:

15 kV 16.7 Hz AC
Operating speed100 km/h
Highest elevation607 m (1,991 ft)
Maximum incline5.5%
Route map

Km
Height
Rhine Valley Railway from Mannheim
−2.0
Freiburg (Breisgau) Hbf.
278 m
0
Branch point
(replaced by a new route in 1934)
Rhine Valley Railway to Basel
Loretto Tunnel
514 m
Sternwald Tunnel
302 m
2.7
Freiburg Wiehre
280 m
5.7
Freiburg Littenweiler
317 m
7.4
Kappelertal
now closed
11.0
Kirchzarten
392 m
13.9
Himmelreich
455 m
Falkenstein Tunnel
72 m
Lower Hirschsprung Tunnel
121 m
Upper Hirschsprung Tunnel
69 m
18.2
Hirschsprung
now closed
559 m
Kehre Tunnel
203 m
20.6
Posthalde
now closed
657 m
22.2
Höllsteig
now closed
740 m
Ravenna Bridge
224 m
Ravenna Tunnel
47 m
Finsterrank Tunnel
248 m
Löffel Valley Tunnel
82 m
25.4
Hinterzarten
885 m
29.3
Titisee
858 m
Dreiseenbahn to Seebrugg
32.3
Hölzlebruck
now closed
29.3
Neustadt (Schwarzwald)
805 m
39.1
Kappel Gutachbrücke [de]
now closed
Branch line to Bonndorf
Gutach Valley Bridge [de]
Finsterbühl Tunnel
166 m
Hörnle Tunnel
220 m
Setze Tunnel
104 m
Kapf Tunnel
203 m
45.9
Rötenbach
50.9
Löffingen
804 m
53.2
Reiselfingen
now closed
56.3
Bachheim
58.7
Unadingen
Döggingen Tunnel
535 m
64.0
Döggingen
67.7
Hausen vor Wald
now closed
Breg Valley Railway [de] to Bräunlingen
Hüfingen Mitte
72.1
Hüfingen
now closed
Donaueschingen Allmendshofen
Black Forest Railway from Konstanz
74.7
Donaueschingen
677 m
Black Forest Railway to Offenburg
Source: German railway atlas[1]

The Höllentalbahn (literally, "Hell Valley Railway") is a railway line that partially runs through the Höllental valley in the Black Forest of Germany. The line connects Freiburg im Breisgau with Donaueschingen, a distance of 74.7 km (46.4 mi).[2]

Over its entire course the line rises from an altitude of 278 m (912 ft) in Freiburg to 885 m (2,904 ft) in Hinterzarten. Part of the route has a 5.5% gradient, making the line one of the steepest in Germany.

The section Freiburg-Neustadt is electrified since 18 June 1936. Because of this and the steady decrease of traffic between Neustadt and Donaueschingen the route did not represent an operational unit anymore. The last direct connection between Freiburg and Donaueschingen ended in 2003 with the Kleber-Express Freiburg-Munich being discontinued. The missing section was electrified until the end of 2019 in the course of the project “Breisgau-S-Bahn 2020”, in order to enable direct trains from Breisach via Freiburg, Neustand and Donaueschingen to Villingen.[3]

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Transcription

History

The line, which opened as far as Neustadt in 1887, was constructed for the Grand Duchy of Baden State Railways and was the last project of railway architect Robert Gerwig. The 7.2 km (4.5 mi) section of the line between Hirschsprung and Hinterzarten has a maximum gradient of 5.5%, and was initially operated as a rack railway on the Riggenbach system.[2]

The line was extended from Neustadt to Donaueschingen in 1901. In 1932/33, ten powerful Class 85 steam locomotives were built, which enabled traffic to operate over the Hirschsprung and Hinterzarten section without rack assistance, and rack operation ceased in 1933.

In 1934, a new and partially tunnelled route within the city of Freiburg was opened. This enabled the original route, which passed closer to the city centre and over congested level crossings, to be closed.[4]

In 1936, the Deutsche Reichsbahn electrified the line between Freiburg and Neustadt, installing a 20 kV, 50 Hz AC. This led to the subsequent adoption of the 25 kV AC 50 Hz system in France and elsewhere.[5] Since the electrification of Mannheim–Karlsruhe–Basle railway had been completed in 1958, the Höllentalbahn was linked to the nationwide electric railway system. Therefore, in 1960, the electrified section of the Höllentalbahn was converted to the standard 15 kV, 1623 Hz system used throughout the German railway network.

The Höllentalbahn was used successfully to test designs for the DB Class 144. Later, electric motive power was supplied by the Series 145, which was itself replaced by the DB Class 139. 1996–2019, the electric line used modern double-decker rolling stock pulled by DB Class 143 locomotives. Exceptions were the two long distance Trains that brought their regular locomotives to the Höllentalbahn: Regional-Express Kleber-Express Freiburg-Munich did no longer change its locomotive in Neustadt 1988-2003 as last remaining direct train between Freiburg and Donaueschingen thus the diesel DB Class 218 operated also on the electrified part of the route on this train. The InterRegio Höllental Emden-Seebrugg ran with its DB Class 101 1996–2002. On the stretch of line between Neustadt and Donaueschingen DB Class 215 operated the trains until they were replaced by DB Class 628 in 1988 ending direct connections over Neustadt. From the 2000s onward DB Class 611 took over until this part of the Höllentalbahn got electrified in 2019. Since then Alstom Coradia Units (DB Class 1440) operate the S1 Breisach-Seebrugg and S10 Freiburg-Villingen lines.

Development during the era of the German National Railway (1919–1945)

On 14 December 1927 the old Ravenna bridge that crossed the Ravennaschlucht (Ravenna ravine), close to Hinterzarten, was replaced with a new viaduct, because it could not cope with the demand anymore. With the construction of the new viaduct, the railway section of the Höllentalbahn was straightened in that area. The costs were about 1.7 million ℛ︁ℳ︁, and only the abutments are still leftovers of the old bridge. The Ravenna tunnel which follows immediately after the bridge was originally 85 metres long. It was partially split open so that nowadays it only has a length of 47 metres.

At the beginning of the 1930s, the Höllentalbahn between Freiburg main station and Freiburg- Littenweiler was relocated, so that the station of Freiburg-Wiehre had to be moved as well. The relocation was made in order to avoid the intersection with the Rheintalbahn, to create a bridge instead and especially to get rid of the railroad crossings in the city area.[6]

Furthermore, the intersection with the already existing line to Günterstal of the Freiburg im Breisgau tramway, which existed since 1901, could be discontinued. There was a severe accident on 12 October 1916 because a tram, which was heading into town, disregarded the closed barrier in the darkness and collided with a railroad train going uphill. The tram and the line-keepers lodge got shattered while the tram driver, the conductor and the only passenger got slightly injured.[7][8][9]

Two new tunnels had to be built for the new line: the one going through the Lorettoberg and the one beneath the Sternwald. The eastern border fault of the Upper Rhine Plain goes through the Lorettoberg. It can be seen through a ‘window’, which has been left open whilst bricking the tunnel so the further subsidence can be measured.[10] In the course of the construction works, the line from the central station to Wiehre was increased to two tracks. The former train station Alter Wiehre Bahnhof (Old Wiehre Station) is now used for cultural activities, for example as a building for film and literature with the ‘Kommunales Kino Freiburg’ (municipal cinema Freiburg), the 'Literaturbüro Freiburg' (lit.: literature office Freiburg) and it also houses a café.

Route

After leaving Freiburg Hauptbahnhof, the main station for the city of Freiburg, the Höllentalbahn diverges from the mainline Mannheim–Karlsruhe–Basel railway to the east. It the crosses over the mainline on a flyover and serves two further stops within the city, before starting its ascent of the Höllental.[2]

High points on the stretch of the line through the Höllental include the Hirschsprungfelsen (a rock formation) and a crossing of the Ravenna Gorge on the 40-metre (131 ft) high Ravenna Bridge. The section of the line between Hirschsprung and Hinterzarten has a steep maximum gradient of 5.5%, betraying its origin as a rack railway.[2]

After leaving the Höllental, the Dreiseenbahn railway to Seebrugg diverges at the spa town of Titisee, close to the Titisee lake. The town of Neustadt follows; since the electrification of the section to Donaueschingen in 2019, passengers do not have to change trains there anymore.[2]

Further on, between Neustadt and Donaueschingen, the viaduct at the former Kappel Gutachbrücke station [de] crosses the Wutach at the beginning of its long gorge. While in a 535-metre (1,755 ft) tunnel near Döggingen station, the line crosses a main European watershed, between the Rhine drainage basin (flowing into the North Sea) and the Danube drainage basin (flowing into the Black Sea).

Construction engineering

The Höllentalbahn has 15 tunnels[11] on its railway section. Nine of them are on the section between Freiburg and Neustadt (front section) and six of them are on the section between Neustadt and Donaueschingen (back section). The longest tunnel is the Dögginger Tunnel with a length of 535 metres. It passes beneath the European watershed between the Black Sea and the North Sea. All the tunnels on the back section between Neustadt and Donaueschingen were built with the building of the railway section; in contrast to the front section between Freiburg and Neustadt, where the Sternwald-Tunnel with a length of 514 metres and the Loretto-Tunnel with a length of 302 metres were built with the relocation of the railway section between Freiburg main station and Freiburg-Littenweiler in 1934. The lower Hirschsprung tunnel was originally 121 metres long but was then shortened to 114 metres after World War II.[12]

References

  1. ^ Eisenbahnatlas Deutschland [German railway atlas]. Schweers + Wall. 2017. pp. 101, 110, 111. ISBN 978-3-89494-146-8.
  2. ^ a b c d e Eisenbahnatlas Deutschland. Verlag Schweers + Wall GmbH. 2009. pp. 101, 110–111. ISBN 978-3-89494-139-0.
  3. ^ "Höllentalbahn Ost". www.bsb2020.de (in German). Retrieved 2015-08-22.
  4. ^ Deacon, Ray (1998). Freiburg: From classic tramway to light rail. LRTA. pp. 18, 33. ISBN 0-948106-22-0.
  5. ^ Hollingsworth, Brian; Cook, Arthur (2000). "SNCF Class 12000 Bo-Bo". Modern Locomotives. Pavilion Books. pp. 112–113. ISBN 0-86288-351-2.
  6. ^ Joachim Scheck (2010-05-25). "Geschichte der Höllentalbahn: Mit Volldampf durch die Wiehre" (in German). Badische Zeitung. Retrieved 2011-03-13.
  7. ^ Freiburger Zeitung, Morgenausgabe, Freitag, 13. Oktober 1916
  8. ^ Freiburger Zeitung, Abendausgabe, Freitag, 13. Oktober 1916
  9. ^ Freiburger Verkehrs AG (2001), Mobile Stadt Die Geschichte der Straßenbahn in Freiburg (in German) (2 500 ed.), Freiburg im Breisgau: Freiburger Verkehrs AG, p. 51, ISBN 3-00-008339-1
  10. ^ "Riss im Lorettoberg" (PDF) (in German). Archived from the original (PDF; 4,3 MB) on 2014-02-22. Retrieved 2013-06-13.
  11. ^ "Bilder aller Tunnelportale der Höllentalbahn (VzG 4300)". Eisenbahntunnel-portal.de (in German). Retrieved 2014-03-03.
  12. ^ "Bilder des Ravenna-Tunnels". Eisenbahntunnel-portal.de (in German). Retrieved 2014-03-03.

Sources

  • Sauter, Jörg (2007). Die Eisenbahn im Höllental – Von Freiburg in den Hochschwarzwald. Eisenbahn-Bildarchiv (in German). Freiburg: EK-Verlag. ISBN 978-3-88255-370-3.
  • Scharf, Wolfgang; Wollny, Burkhart (1987). Die Höllentalbahn. Von Freiburg in den Hochschwarzwald (in German). Freiburg im Breisgau: Eisenbahn-Kurier-Verlag. ISBN 3-88255-780-X.
  • DB Regio Südbaden, ed. (2011). "Die Höllentalbahn – ein gutes Stück Schwarzwald". 125. Jubiläum der Höllentalbahn (in German). Freiburg.{{cite book}}: CS1 maint: location missing publisher (link)

Gallery

External links

47°54′09″N 8°09′31″E / 47.90250°N 8.15861°E / 47.90250; 8.15861

This page was last edited on 4 October 2023, at 16:00
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