Bad Godesberg tunnel
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Bad Godesberg tunnel Bad Godesberg tunnel
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 North portal of the Godesberg tunnel
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| use | Road tunnel | |||
| traffic connection | Bundesstrasse 9 | |||
| place | Bonn-Bad Godesberg , Germany | |||
| length | 1950 m | |||
| vehicles per day | 36,000 | |||
| Number of tubes | 2 | |||
| construction | ||||
| building-costs | 250 million euros | |||
| start of building | September 13, 1992 | |||
| completion | August 28, 1999 | |||
| business | ||||
| release | August 29, 1999 | |||
| location | ||||
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| Coordinates | ||||
| North portal | 50 ° 41 ′ 27 " N , 7 ° 8 ′ 56" E | |||
| South portal | 50 ° 40 ′ 49 " N , 7 ° 9 ′ 47" E | |||
Map with all coordinates: The bath Godesberger tunnel (also Tunnel Bad Godesberg ) is a less than two kilometers long road tunnels of B9 . It leads under the inner city of Bonn - Bad Godesberg .
The tunnel, which opened on August 28, 1999 after a seven-year construction period, has two tubes separated according to the direction of travel, each of which leads to two shared exits at both ends. The northern tunnel portal leads to Godesberger Allee , the southern one to Koblenzer Straße. In addition to the tunnel entrances of the B 9, there is an exit towards Heiderhof at the southern end and an exit to Friesdorf at the northern end .
history
The first plans to build the tunnel came from the 1970s, when the federal government began to prepare for a longer-term stay in the former federal capital and therefore found it necessary to expand the transport infrastructure. These plans have long been controversial. In addition to the high costs, there were fears that the construction work would have a negative impact on the Godesberg retail trade. The construction costs were initially set at 280 million euros, but were ultimately below 250 million euros.
Following the commitment of the federal government, which was reached in 1985 by the city of Bonn, to assume 86% of the total costs, the city council decided on December 17 of that year to build the Bad Godesberg tunnel. The Reuter tunnel in the north of the city, which had been planned for a long time in connection with the Godesberg tunnel, was put on hold and never realized. The planning approval procedure for the construction of the tunnel lasted from 1989 to 1992. After the Higher Administrative Court gave the green light in June 1992, the first pile-driving took place on September 13, 1992. The road tunnel was ceremoniously opened on August 28, 1999 and opened to traffic the next day, the Friesdorf entrance and exit followed in September 2000. According to plans by the Bonn architect Karl-Heinz Schommer , the north and south fan buildings were built at both tunnel entrances.
The two tunnel tubes do not run parallel, because during the planning it was important that they run primarily in public land. Therefore, the tube leads southwards exactly below the formerly above-ground B 9 and the other tube runs behind the eastern row of houses on the federal road. Only four private buildings had to be acquired and demolished before the tunnel was built. The realization was made more difficult by the crossing under densely built-up area as well as two railway lines, the left Rhine line of the Deutsche Bahn and the railway line Bonn – Bad Godesberg of the Bonn light rail.
The tunnel brought about reorganizations in the above-ground Bad Godesberg road network. So was z. B. the first (narrow) part of Koblenzer Straße (between Aennchenplatz and Am Kurpark) is closed to private traffic. So far, the tunnel has proven itself well, the vehicle load in Bad Godesberg city center has decreased significantly.
Tunnel properties
As the tunnel does not have hard shoulders or emergency bays , the permissible speed is continuously limited to 50 km / h. Four speed monitors were installed to maintain the speed limit . Around 36,000 vehicles pass through the tunnel every day. In the 2004 ADAC tunnel test, the tunnel was rated “good” . The Godesberg tunnel no longer fully complied with the increased safety guidelines for road tunnels after serious accidents. The construction work necessary to adapt to these requirements should be carried out between 2008 and 2009 in two construction phases at a cost of around five million euros. Because, according to the city of Bonn, the state of North Rhine-Westphalia had not yet paid out its share of the financing for the measure, the modernization was initially put on hold. The first construction phase finally took place from April to November 2012 and cost 2.3 million euros. The second construction phase began in July 2018 and was completed in February 2020, it cost 9.35 million euros according to the latest status.
The tunnel as a protective structure
The Godesberg tunnel is one of the last shelters ( bunkers ) to be subsidized by the federal government. In total, there is space here for up to 7,200 people seeking protection. To close the bunker, there are huge black swing gates at the ends of the main tubes. Access to the shelter is then only possible via locks and emergency exits. The two tunnel tubes are connected to one another via two cross tunnels. The social and technical rooms are also located between the tubes. The bunker has appropriate facilities to ensure the drinking water supply. A reference to this protective device, however, requires some preparation time, as z. B. Food must first be stored.
Individual evidence
- ↑ a b Dagmar Blesel: Loudspeakers and lights are missing in the tunnel. In: General-Anzeiger . June 21, 2007, accessed November 28, 2014 .
- ↑ The prehistory. In: General-Anzeiger. August 28, 2009. Retrieved November 28, 2014 .
- ↑ a b Bad Godesberg road tunnel: Safety retrofitting before completion ( Memento from December 5, 2014 in the Internet Archive ), press release from the Federal City of Bonn, November 14, 2012
- ^ Ingeborg flag (ed.): Karl-Heinz Schommer: Buildings and projects . Junius Verlag, Hamburg 1998, ISBN 3-88506051-5 , pp. 110/111.
- ↑ Stefan Pieper, Head of Department at the Office for Civil Engineering and Transport Technology of the City of Bonn, according to Marcel Dörsing: The bomb-proof tunnel. In: ga-bonn.de. 2014, accessed November 28, 2014 .
- ↑ Bernd Linnarz: City has to postpone renovation of the road tunnel. In: General-Anzeiger. January 30, 2009, accessed November 28, 2014 .
- ^ Even more safety in the Bad Godesberg road tunnel ( Memento from December 5, 2014 in the Internet Archive ), press release from the Federal City of Bonn, March 28, 2012
- ^ Safety- related renovation of the road tunnel ( Memento from December 21, 2019 in the Internet Archive ), City of Bonn
- ↑ Road tunnel Bad Godesberg: Retrofitting of the safety technology has begun ( Memento from July 23, 2018 in the Internet Archive ), City of Bonn
- ↑ City will set up left-turners in the road tunnel if necessary , General-Anzeiger , February 19, 2020
Web links
- Interest group for historical military, industrial and transport buildings. In: geschichtsspuren.de (formerly lostplaces.de)
- City of Bonn