Grafenwerther Bridge

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Coordinates: 50 ° 38 ′ 36 ″  N , 7 ° 13 ′ 0 ″  E

Grafenwerther Bridge
Grafenwerther Bridge
Subjugated Rhine
place Bad Honnef
construction Reinforced concrete bridge
overall length 130 m
width 8 m
Number of openings 5
Clear width 26 m
building-costs 167,190  marks
start of building 1911
opening April 15, 1912
construction time
planner Ottomar Stein
location
Grafenwerther Bridge (North Rhine-Westphalia)
Grafenwerther Bridge

The Grafenwerther Bridge is a bridge in Bad Honnef over the oxbow lake of the Rhine , which was built between 1911 and 1912. It connects the mainland bank of the Rhine with the Grafenwerth island . The Graf Werther bridge stands as a monument under monument protection .

history

The bridge was created as the first permanent connection between Honnef and Grafenwerth and goes back to a plan by the city planner Karl Henrici . As early as 1908, a landing stage for steamships was opened on the island . Only the tourist restaurant on the island benefited from the associated increase in tourism , but not the city, which could only be reached by another boat trip followed by a walk. The Honnef-based architect Ottomar Stein was therefore commissioned in 1910 to design a bridge over the oxbow lake, which should simplify the route from the island to the city. After the ministerial approval was granted in June of the same year, the implementation planning began . The construction work began in March 1911 by the Cologne-based construction company Helff & Heinemann and on April 15, 1912 (according to another source October 1, 1912) the first permanent connection to the island was ceremoniously inaugurated. The construction costs of 167,190 marks had to be borne largely by the city of Honnef after start-up financing of 30,000  marks by the newspaper publisher Wilhelm Girardet . The structure was documented in specialist journals at the time and is considered to be one of the early reinforced concrete bridges in Germany. One year after completion, the bridge's parapet buckled in some places, and the city had to pay for the repair of the damage.

At the end of the Second World War , in March 1945, the commander of the local German engineer unit intended to blow up the bridge. This project could be averted , possibly due to an intervention by the then Honnef town builder .

Since October 13, 1993 the bridge has been entered in the list of monuments of the city of Bad Honnef. On June 11, 2005, Mayor Wally Feiden christened the previously unnamed building with its current name as part of the Aranka Festival . The inside of the parapet has been secured by massive steel girders since 2015, and the bridge will have to be completely refurbished in the near future (as of November 2017). Since March 2017, access to the bridge has been regulated by an electronic bollard .

  • Securing the parapet with steel girders (2019)

description

The Grafenwerther Bridge, located in the north of the island, is an arched bridge made of reinforced concrete made of five flat basket arches with a clear width of 26, 22 and 18 m. Around 4000  m³ of concrete and 20 t of iron were used. The total length is 130 m, the useful width of 8 m is made up of 5 m for the roadway and 1.5 m each for the sidewalks . Both sides of the abutments and the two central pillars have balcony-like bulges. Immediately to the east is the pedestrian bridge built in the 1950s over Bundesstrasse 42 and the railway on the right bank of the Rhine, and to the south-east is the Honnefer Kreuz bridge structure . A set of stairs leads down to the Rhine promenade , which leads to the Bad Honnef tram stop of the Siebengebirgsbahn . The Aalschokker Aranka has been anchored in the oxbow lake north of the bridge since 1990 , and there is a notice board on the bridge.

Web links

Commons : Grafenwerther Brücke  - Collection of images, videos and audio files

literature

  • Eva-Maria Gerstkamp: Building a bridge a hundred years ago. In: Rheinländer , 5th year 2012, issue 44, pp. 18-20. ( online )

Individual evidence

  1. ↑ a b Announcements on cement, concrete and reinforced concrete construction , 9th year 1912, p. 20. (Supplement to the Deutsche Bauzeitung , 46th year 1912)
  2. ↑ a b The history of the island Grafenwerth. (No longer available online.) The Bad Honnef weekly newspaper online, March 28, 2013, archived from the original on April 8, 2013 ; Retrieved June 12, 2013 .
  3. ↑ List of monuments of the city of Bad Honnef, number A 180
  4. ^ Landeskonservator Rheinland (Ed.): Bad Honnef. Urban development and urban structure. Rheinland-Verlag, Cologne 1979, ISBN 3-7927-0414-5 , p. 20.
  5. ^ August Haag : From winegrowing village to bathing town. A century of economic development. In the S. (Ed.): Bad Honnef am Rhein. Contributions to the history of our home community on the occasion of their city elevation 100 years ago. Verlag der Honnefer Volkszeitung, Bad Honnef 1962, p. 106.
  6. ↑ a b Deutsche Bauzeitung , Volume 48, 1914, No. 69 (from August 29, 1914), p. 650 (note on the inauguration)
  7. ↑ Zement und Beton, illustrated monthly for cement and concrete construction , 10th year 1911, p. 680 ( excerpt from Google book search)
  8. ^ Karl Günter Werber : Honnefer walks. 2nd revised edition, Verlag Buchhandlung Werber, Bad Honnef 2002, ISBN 3-8311-2913-4 , p. 91.
  9. ↑ J [ohann] J [oseph] Brungs : The city of Honnef and its history . Verlag des St. Sebastianus-Schützenverein, Honnef 1925, p. 197/198 (reprinted 1978 by Löwenburg-Verlag, Bad Honnef).
  10. ↑ Jakob Wolfgarten: Experiences and reports from eventful times (1923 and 1945) . In: August Haag (ed.): Bad Honnef am Rhein. Contributions to the history of our home community on the occasion of their city elevation 100 years ago. Verlag der Honnefer Volkszeitung, Bad Honnef 1962, p. 71.
  11. ↑ Bad Honnef celebrates twice on the weekend. In: General-Anzeiger of June 11, 2005, p. 8.
  12. ↑ Bad Honnef has to invest a lot of money in its buildings , Bonner Rundschau , July 29, 2016
  13. ↑ Many bridges are in disrepair , General-Anzeiger , August 5, 2016
  14. ↑ Two million euros for the future of Grafenwerth Island , General-Anzeiger , November 21, 2017
  15. ↑ Access to the island regulated by electronic bollards , press release of the city of Bad Honnef, February 24, 2017