Karl Lehr Bridge

Coordinates: 51 ° 26 ′ 40 ″  N , 6 ° 44 ′ 44 ″  E

Karl Lehr Bridge
use	Road bridge
Subjugated	Dysentery
place	Duisburg
overall length	179.38
width	21.86
Longest span	118.88
location

The Karl-Lehr-Brücke is a road bridge over the Ruhr at river kilometer  1.934. It is the last bridge over the river before it flows into the Rhine and connects the districts of Kaßlerfeld and Ruhrort in Duisburg . The bridge is named after Duisburg's Lord Mayor Karl Lehr , who did a great job of expanding the Duisburg-Ruhrorter ports into a world-famous inland port and connecting the formerly independent cities of Ruhrort and Meiderich to Duisburg. State road  140 and tram line 901 of the Duisburg transport company run over the Karl-Lehr-Brücke .

history

Karl-Lehr-Brücke, 1907–1945 (historical picture postcard, sent by post in 1915)

Prince Bridge in Münster-Hiltrup

The first bridge over the Ruhr and the harbor was built by Franz Haniel in 1864 . In 1907 it was replaced by a new building 70 meters upstream, as the old bridge no longer met the requirements of the growing traffic in terms of clearance height and width. Three arches spanned the Ruhr, two further bridges, each with a bascule bridge section, spanned the port canal and the Kaiserhafen . The northernmost bridge over the Vinckekanal was completed by 1914 by filling in part of the shipyard and relocating Ruhrorter Strasse in this area. The Ruhr Bridge was blown up in 1945 by the retreating Wehrmacht and only rebuilt in 1949 with a section of the Hohenzollern Bridge in Cologne, which was also destroyed . Short, structurally uncomplicated girder bridges were built between the larger arch bridge and the abutments. A still usable section of the old bridge, which was no longer needed in Duisburg, was transported to Münster-Hiltrup at the beginning of the 1950s , where it bridges the Dortmund-Ems Canal under the name Prinzbrücke to this day .

At the beginning of 2007, a Dutch ship with its overhead crane rammed the bridge over the Ruhrort harbor at the entrance. A 2 meter long crack developed with damage to the cable duct. After several hours and an examination by structural engineers, the bridge was opened to traffic again.

technology

The bridge has a half-timbered arch with a suspended carriageway that rests on bank pillars . At the side of this are bar fields over the floodplain. The arch ribs are connected to one another with a diamond framework.

The bridge was in great need of renovation. There was a risk that the bridge would be closed to traffic. In 2014/2015 the partial bridge over the Vincke Canal was renovated. From 2016, the connecting bridges were renovated in a second construction phase. The bridge is to be replaced by 2025.

Individual evidence

1. ↑ Prinzbrücke: "Preservation is unthinkable". Westfälische Nachrichten , August 3, 2010.
2. ↑ http://www.ruhrort.com/aktuell/berichte/berichte.html#SchiffsunfallBruecke
3. ↑ http://www.derwesten.de/staedte/duisburg/Ringen-um-Ruhrorts-Bruecken-id2413698.html
4. ^ Ingo Blazejewski: Karl-Lehr-Brückenzug in Duisburg finished later and more expensive. In: DerWesten, August 13, 2014.
5. ↑ Mike Michel: Largest infrastructure project in Duisburg: New bridges should be ready in 2025. In: RP Online. July 23, 2020, accessed July 24, 2020 . 

Web links

Commons : Karl-Lehr-Brücke  - Collection of pictures, videos and audio files

• Description of this sight on the route of industrial culturehttp: //vorlage.rik.test/~1~10146
• Lord Mayor Teaching Bridge. In: Structurae