Neuenkamp bridge over the Rhine
Coordinates: 51 ° 26 ′ 13 ″ N , 6 ° 42 ′ 46 ″ E
 Neuenkamp bridge over the Rhine
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| Official name | Neuenkamp bridge over the Rhine | |
| use | Highway bridge | |
| Convicted | Federal motorway 40 | |
| Crossing of | Rhine | |
| place | Duisburg | |
| construction | Cable-stayed bridge | |
| overall length | 1st construction: 777.4 m 2nd construction: 802 m |
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| width | 1st construction: 36.3 m 2nd construction: 68.3 m |
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| Longest span | 1st construction: 350 m 2nd construction: 380 m |
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| height | 1st construction: 50 m 2nd construction: 75 m |
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| vehicles per day | 91,500 (2010) | |
| building-costs | 1st construction: 37 million DM 2nd construction: 365.5 million euros (planned) |
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| start of building | 1st construction: 1966 2nd construction: December 2019 |
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| completion | 1st construction: 1970 2nd construction: 2026 (planned) |
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| opening | 1st construction: October 16, 1970 2nd construction: 2026 (planned) |
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| construction time | 1st construction: just under 4 years 2nd construction: 6 years (planned) |
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| location | ||
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| Above sea level | 20 m | |
The Rheinbrücke Neuenkamp is a motorway bridge over the Rhine in Duisburg at Rhine kilometer 778.34. The federal motorway 40 connects the Ruhr area with the Lower Rhine between the districts of Neuenkamp and Homberg or Rheinhausen . Since it is now used by around 100,000 vehicles every day, but was only designed for 30,000 vehicles at the time of construction, the bridge will be replaced by a new building, the completion of which is planned for 2026.
Today's bridge
History, technical details
After the end of the Second World War , there was not a single intact Rhine bridge between Basel and Emmerich am Rhein . By 1970 17 railway bridges and 34 road bridges had been rebuilt. At the time of commissioning, the Neuenkamper Bridge was the longest cable-stayed bridge in the world. The construction of the originally four-lane bridge lasted from 1966 to 1970, when it was opened to traffic by Federal Transport Minister Georg Leber on October 16, 1970 . The construction costs at that time amounted to about 37 million DM (today about 63.4 million euros).
The bridge is 777.4 meters long and provides a bridge area of 27,830 square meters for the motorway and its cycle paths and footpaths. The construction of the bridge was taken over by Gutehoffnungshütte (GHH) in Oberhausen-Sterkrade . The Neuenkamper Bridge was the last bridge built by the GHH. It was built from both banks by 80 workers under the direction of the engineer Gerhard Fischer over almost four years.
The Neuenkamper Bridge is constructed as a double-hipped central girder cable-stayed bridge made of steel with two accessible 50 meter high steel pylons in the middle of the carriageway. The stay cables are divided into twelve groups of nine cables each, with each individual cable having a diameter of 57 to 83 millimeters.
The spans of the 8- span bridge are 46.8 m + 50.0 m + 45.0 m + 45.0 m + 350.0 m + 105.0 m + 60.0 m + 75.6 m. The cross-section of the bridge is formed by a steel, continuous, two-cell and 12.7 meter wide box girder with a construction height of 3.75 meters, above which the 36.3 meter wide carriageway cantilevered from an orthotropic plate . On the side of the box girder, 8.1 meter wide strips of the carriageway slab are supported with inclined struts against the lower edge of the box girder. The 3.7 meter wide sidewalks and cycle paths are self-supporting.
Changes
The Neuenkamp Rhine Bridge was designed for a maximum of 30,000 vehicles per day, each with two lanes and one hard shoulder. Obviously no one could foresee the development of traffic on the motorways. As a result of this increase, traffic on the Neuenkamp Rhine Bridge increased to around 100,000 vehicles per day, including 11,000 trucks. During the same period, the permissible axle loads of the trucks were increased from 8 tons to 10 or 11.5 tons for driven single axles.
In 1977 the road crossings were exchanged for the first time. In the years 1996 to 1998 and again from 2010 to 2013 the road slab was renovated due to cracks that had occurred.
Due to the increase in traffic, the Neuenkamp Rhine bridge was expanded to six lanes by converting the hard shoulder to a lane so that the heavy trucks drove on the outermost edge of the carriageway slab still supported by inclined struts. The associated increased leverage increased the impact on the bridge from the increased loads of the increased traffic. In 2007, four lanes were reduced again.
Renovation from 2004 to 2006
After the bridge had existed for over thirty years, extensive renovation was necessary, which cost around seven million euros. It started in 2004 and lasted about three years until the end of 2006.
The rehabilitation of the rope groups was particularly urgent. The individual ropes of each of these groups were coated to prevent corrosion, but rubbed against each other due to the loads on the bridge, so that the protective coating was damaged over the years. The nine ropes of each rope group had to be spread very laboriously and spacers were installed. Now every single rope was given a coat of paint to protect against corrosion. These now spread rope groups can now be better checked with a simple visual inspection.
In parallel with the rope work, the superstructure expansion joints that were repaired in 1990 were replaced by modern, low-noise joints. Finally, the road surface was partially and completely renewed in August 2007. Since then the bridge has had four lanes again.
Renovation from 2014 to 2015
Ten years after the aforementioned renovation, another one was necessary. On some weekends it led to the blocking of heavy goods traffic in order to be able to carry out the necessary welding work in the substructure without loading from above. In the summer of 2015, the bridge in the direction of Essen was temporarily closed to vehicles over 3.5 tons due to bridge damage similar to that on the Leverkusen Rhine Bridge near Cologne. In the direction of the Netherlands, it was repeatedly blocked for vehicles over 3.5 tons. In the medium term, the bridge can still be preserved through ongoing monitoring and maintenance measures; in the longer term, it will need to be replaced by a new building.
Temporary closure in 2017
On August 2, 2017, the bridge had to be completely closed due to a rupture in the rope anchorage that was detected during a routine inspection. Pedestrians and cyclists were still allowed to use the bridge. The blockage was lifted on August 17th, but the bridge will be under constant and daily observation from now on.
Restriction by weighing system since 2018
Since the bridge is particularly heavily loaded by heavy trucks and the current construction can only withstand this to a limited extent, the bridge journey for vehicles over 40 tonnes total weight or more than 11.5 tonnes axle weight was prevented by a measuring and weighing device. For this purpose, a maximum speed of 40 km / h is set in the weighing systems so that the trucks are weighed while driving and vehicles that are too heavy can be flagged out to an avoidance area through a traffic light and barrier system. There a legally binding re-weighing by the police and the Federal Office for Goods Transport takes place. The plant has been in operation in a west-east direction since November 9, 2018 and also in an east-west direction since May 30, 2019. It was designed similarly to the one at the Leverkusen Rhine Bridge .
New building from 2019
The start of construction was planned for 2020, but could start earlier due to early building permits and faster tendering procedures. The plan approval procedure began in December 2017, after which the plan approval decision by the Düsseldorf district government became legally binding on March 10, 2019. The tender for the construction work followed. Deges is responsible for the planning and implementation . The total costs are given as around 365.5 million euros and are borne by the federal government.
On December 16, 2019, the groundbreaking ceremony was carried out by the Federal Minister for Transport and Digital Infrastructure, Andreas Scheuer , and the North Rhine-Westphalian Transport Minister Hendrik Wüst for the new eight-lane bridge, which will consist of two parallel bridge sections, one bridge for each direction of travel. The bridge will be 802 meters long and 68.25 meters wide. With this, and with a pillar spacing of 380 meters, it will be the largest cable-stayed bridge in Germany. It should have a lifespan of 80 to 100 years. This takes into account that traffic is expected to increase to 126,500 vehicles per day by 2030. There will also be new bike and footpaths across the bridge, 2.67 meters wide, on both sides, separated from vehicle traffic by a 6.5 meter high protective wall.
First of all, south of the old bridge, the first part of the structure will be built for the eastward direction, and completion is planned for 2023. The traffic that continues to run on the old bridge until then will be relocated to the new bridge section in six lanes with three lanes in each direction of travel.
The demolition of the old bridge will begin in 2023. The northern second part of the bridge is expected to be completed by 2026. As a result, the first southern part of the structure will be moved into its final position over a distance of around 14 meters. Ultimately, each sub-structure will have four lanes. For this purpose, the A 40 is to be adapted to eight lanes over a length of 3.5 kilometers between the Duisburg-Homberg and Duisburg-Häfen junction with ongoing traffic.
Web links
- Rhine bridge Duisburg-Neuenkamp. In: Structurae
- Deutsche Einheit Fernstraßenplanungs- und -bau GmbH : 40: Expansion of the motorway and replacement of the Rhine bridge Duisburg-Neuenkamp ; accessed on December 16, 2019
- Roads in North Rhine- Westphalia: Neuenkamp bridge over the Rhine must be renewed ; accessed on December 16, 2019
- Photo of the Rheinbrücke Neuenkamp 1988 (digit.wdr.de) ; accessed on December 16, 2019
Individual evidence
- ↑ Manual road traffic census 2010. (PDF) (No longer available online.) Federal Highway Research Institute, archived from the original on March 3, 2016 ; accessed on February 28, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b Press release from the Ministry of Transport of the State of North Rhine-Westphalia: Groundbreaking ceremony (PDF); accessed on December 17, 2019
- ↑ a b c Anika Bloemers, Rosali Kurtzbach: A new Rhine crossing for the region ; In: Westdeutsche Allgemeine Zeitung from December 16, 2019
- ^ DIE ZEIT (archive): "The thing is highly political" And art comes to technology . In: The time . November 27, 1970, ISSN 0044-2070 ( zeit.de [accessed April 13, 2019]).
- ^ Holger Svensson: Cable-stayed bridges. 40 years of experience worldwide . Ernst & Sohn, Weinheim 2011, ISBN 978-3-433-02977-0 , p. 76
- ^ Karlheinz Roik, Gert Albrecht , Ulrich Weyer: Cable-stayed bridges . Ernst, Publishing House for Architecture and Technical Sciences, Berlin 1986, ISBN 3-433-00924-4 , p. 26
- ↑ a b c A40: Rheinbrücke Neuenkamp must be renewed in the long term. on Strassen.NRW.de
- ↑ Development of the mileage of all motor vehicles in Germany. ( Memento of the original from June 18, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. on ADAC.de
- ↑ Schematic representation of the increase in traffic on the motorways
- ↑ § 34 StVZO
- ↑ a b Riss discovered: Complete closure of the A40-Rheinbrücke-Neuenkamp. ( Memento of the original from August 2, 2017 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Press release of the State Office for Road Construction NRW from August 2, 2017 (accessed: August 2, 2017).
- ^ Duisburg - Rhine bridge of the A40 fully closed - crack in the rope anchoring . In: Kölner Stadtanzeiger , August 2, 2017 (accessed: August 2, 2017).
- ↑ Press release ( Memento of the original from August 10, 2017 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. of the State Office for Road Construction in North Rhine-Westphalia on August 9, 2017 (accessed: August 10, 2017): Transport Minister Hendrik Wüst: The Neuenkamp Rhine bridge will be closed next week.
- ↑ RP-Online : A40-Rheinbrücke near Duisburg: This is how the truck scales work (accessed: May 13, 2020 on youtube)
- ↑ Press release of the State Office for Road Construction NRW , undated, is constantly updated, accessed on April 9, 2019: A40: Rheinbrücke Neuenkamp must be renewed in the long term .
- ↑ Visualization of the planned new construction of the Rheinbrücke Neuenkamp by DEGES ( accessed : May 13, 2020 on youtube)
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