Bundesstrasse 37

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Template: Infobox high-ranking street / Maintenance / DE-B
Bundesstrasse 37 in Germany
Bundesstrasse 37
Course of the B 37
Basic data
Operator: GermanyGermany Federal Republic of Germany
Start of the street: Kaiserslautern
( 49 ° 26 ′  N , 7 ° 43 ′  E )
End of street: Mosbach
( 49 ° 20 ′  N , 9 ° 6 ′  E )
Overall length: 108 km

State :

Development condition: two-lane
Old Bridge B 37.JPG
Bundesstrasse 37 in Heidelberg
Course of the road
State of Rhineland-Palatinate
Independent city of Kaiserslautern
Locality KaiserslauternB270
Locality Kaiserslautern
District of Kaiserslautern
Locality Hochspeyer B48
Locality Frankenstein B39
Bad Dürkheim district
flow 5 × Isenach
Locality Bad Dürkheim OT Hardenburg
Locality Bad Dürkheim OT Grethen
flow Isenach
Locality Bad Dürkheim
crossing (1)  Bad Dürkheim-East / Middle B271
Start of expressway Beginning of the motor road
Motorway junction (2)  Symbol: Down Bad Dürkheim-East / Middle-South
Junction (3)  Friedelsheim A650
Expressway end Autobahn beginning Transition in A650
Autobahn beginning replaced by A650
Independent city of Ludwigshafen am Rhein
Junction (9)  Ludwigshafen-Bruchwiesenstrasse A650 B44
Autobahn end Start of expressway Transition off A650
Junction (10)  Ludwigshafen -HeinigstrasseB44
Junction (11)  Ludwigshafen-Center
flow Rhine ( Konrad Adenauer Bridge 274 m)
State of Baden-Württemberg
Mannheim city district
Locality beginning Beginning of  Mannheim
Locality Lindenhof B36 B38
Locality Schwetzingerstadt / Oststadt
Start of expressway Beginning of the motor road
Village end End of Mannheim
Junction (1)  Mannheim-center
node (2)  Mannheim- Neckarau B38a
Expressway end Autobahn beginning Transition in A656
Autobahn beginning replaced by A656
City district of Heidelberg
node (5)  Cross Heidelberg A5 E35
Autobahn end Start of expressway Transition off A656
Junction (6)  Heidelberg- Wieblingen
Junction (7)  Heidelberg- Bergheimer Strasse
Expressway end End of the highway
Locality Heidelberg B3
Rhein-Neckar district
Locality Neckargemünd B45
Template: AB / Maintenance / Empty together with B45direction Eberbach
flow Neckar
State of Hesse
Bergstrasse district
Locality Neckarsteinach
flow Steinach
Locality Neckarhausen
Bypass Hirschhorn bypass 
flow Neckar
tunnel (340 m)  tunnel
flow Neckar
State of Baden-Württemberg
Rhein-Neckar district
Template: AB / Maintenance / Empty together with B45direction Neckargmünd
Locality Eberbach B45
Neckar-Odenwald district
Locality Zwingenberg am Neckar
Bypass Binau bypass
Bypass Mosbach OT Neckarelz bypass 
node Mosbacher Cross B27 B292
Formerly the motorway entrance in Mannheim, today the B 37

The federal highway 37 (abbreviation: B 37 ) is a federal highway in Germany. It leads from Kaiserslautern - Vogelweh am Dreieck with the B 270 to Neckarelz , where it joins the B 27 .


Starting in Rhineland-Palatinate in Kaiserslautern, the B 37 runs through the Palatinate Forest past Hochspeyer to Bad Dürkheim . There it runs almost two kilometers together with the B 271 and a few kilometers later merges with the A 650 .

The second eight-kilometer section begins in Ludwigshafen am Rhein , at the end of the A 650 , crosses Ludwigshafen main station on a bridge and runs as an elevated road south to the Konrad-Adenauer-Brücke over the Rhine to Mannheim in Baden-Württemberg . In Mannheim, the B 37 leads past Mannheim Castle through Schwetzingerstadt to merge with the A 656 at Mannheim Airport.

The third section begins east of the Heidelberg junction at the end of the 656 federal motorway. The rest of the route follows the Odenwald Neckar valley on the left, southern bank (in the direction of flow) upstream from Heidelberg to Neckargemünd . Here it crosses the river on the 173 meter long Friedensbrücke , a steel beam construction, and leads on the north bank through the district of Kleingemünd . Behind the city, the federal road changes over the state border to Hesse and leads through Neckarsteinach and to Hirschhorn . Originally, the road here followed the course of the double Hirschhorn Neckar loop . This loop has been abbreviated to three large structures since 1982: the west bridge below Hirschhorn, a tunnel through the Hirschhorn neck in the Baden district of Moosbrunn and finally the east bridge, which leads above Hirschhorn back to the right bank of the Hessian Neckar. Below the high Igelsbach , the Hessian Neckar Valley ends and the main road changes one last time to Baden in the direction of Eberbach , Neckargerach and Mosbach - Neckarelz . Here it joins the B 27 coming from Würzburg to Heilbronn at the “Mosbacher Kreuz” .

From Neckargemünd to shortly before Eberbach , the route is identical to the B 45 .



The road from Dürkheim to Mannheim was one of the most important connections of the Palatinate as Salinenstraße and from 1753 (initially only from Mannheim to Oggersheim, later also to Dürkheim) was expanded to become an art road.

As the most important east-west connection of the Electoral Palatinate , the road from Mannheim via Heidelberg to Mosbach was expanded to Chaussee from 1765. However, in the 18th century this road did not lead through the Neckar Valley (the northern part of which was already part of Hesse at that time), but from Neckargemünd via Wiesenbach and Aglasterhausen to Mosbach. It was not until 1857 that the Neckartalstraße was built via Hirschhorn and Eberbach (today's Bundesstraße 37) and in 1862 it was elevated to the status of Baden state road.

Previous routes and names

The Palatinate belonged to the Kingdom of Bavaria between 1815 and 1918 and then to the Free State of Bavaria until 1945 . The Bavarian State Road No. 54 began in Kaiserslautern and led via Dürkheim to Ludwigshafen.

The Baden State road no. 3 resulted from Mannheim via Heidelberg and Sinsheim to Heilbronn and took it from Neckargemuend the routes of today's federal highways 39 and 45. In Wiesbachhorn chain, the Baden state road no. 4 from that led to the old highway through Aglasterhausen Mosbach . The Neckartalstraße, which partly ran through Hessian territory, received two different numbers from the Baden road administration. The Baden state road No. 162 led from Neckargemünd to the Hessian border near Neckarsteinach. The Baden state road No. 166 led from the Hessian state border at Eberbach to Neckarelz, where the end of the federal road 37 is today.

It was not until the introduction of so-called " Fernverkehrsstraßen " (FVS) by the Weimar Republic on January 17, 1932, that the former FVS 37 was renamed Reichsstraße 37 (R 37) in 1934, without taking into account the historical national borders through the Neckar valley via Hessian territory to Eberbach and continued to Neckarelz.

At the height of the Hessian municipality of Hirschhorn , an elaborate bypass with two Neckar bridges and a single-tube road tunnel was built during the 1980s , which on the one hand relieves the town center and on the other hand ensures permanent navigability of the B 37 when the Neckar floods. This tunnel was renovated by July 26, 2011 . The old town passage along the river is flooded again and again during floods, so that the important connection from the Neckar valley to Heidelberg used to be regularly interrupted.

Until the mid-1990s, the B 37 ran parallel to the A 656 through the Mannheim districts of Neuostheim and Seckenheim , the municipality of Edingen-Neckarhausen and the Heidelberg district of Wieblingen , before this section was downgraded to Landesstraße  637.

Between the middle of 2008 and the end of 2010, between Hochspeyer and Frankenstein , the 1.5 km long section of the road, bounded by rocks on one side and the Palatinate Ludwig Railway on the other, was widened in order to create a cycle and walkway.


There are repeated discussions in the city of Heidelberg about banning the B 37, which runs directly on the southern bank of the Neckar, for around 2 km underground, in order to let the historic Heidelberg old town border the river again without disturbing road traffic. The future will show whether this wish can be realized in view of the high construction costs and the rocky subsoil.

See also

Web links

Commons : Bundesstrasse 37  - Collection of pictures, videos and audio files

Individual evidence

  1. ^ Four lanes in Kaiserslautern, Ludwigshafen and Mannheim
  2. Map section of the transition from B 37 to A 656. Openstreetmap , accessed on June 19, 2013 .
  3. ^ A b Karl Gotsch: Neckar bridges from Neckarsulm
  4. Hirschhorn: tunnel closure extended . In: Mannheimer Morgen . July 21, 2011.
  5. ^ Die Rheinpfalz , February 7, 2008
  6. Summary of the construction project