Federal road 38a

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Bundesstrasse 38a in Germany
Federal road 38a
Basic data
Operator: GermanyGermany Federal Republic of Germany
Start of the street: Mannheim-Feudenheim
( 49 ° 29 ′  N , 8 ° 31 ′  E )
End of street: Mannheim-Casterfeld
( 49 ° 27 ′  N , 8 ° 31 ′  E )
Overall length: approx. 6 km

State :


B 38a, junction with the A 656
(Mannheim-Neckarau junction)
Course of the road
Junction Mannheim-Feudenheim
Truck toll Start of the truck toll
Junction Mannheim-Feudenheim-Süd
bridge Neckar
Junction Mannheim-Neuostheim
node (2)  Mannheim-Neckarau A656
Junction Mannheim-Neuhermsheim
bridge Marshalling yard
Junction Mannheim-Mallau
Junction Mannheim-Casterfeld B36
Truck toll End of the truck toll

The federal highway 38a (abbreviation: B 38a), also called Rhein-Neckar-Schnellweg , is a federal highway in Germany . It leads from Mannheim - Feudenheim to Mannheim-Casterfeld and, with a motorway-like expansion, is an important eastern bypass for road traffic in Mannheim .


Driveway to the Carlo-Schmid-Brücke towards Mannheim-Neckarau

The B 38a begins at the entrance to Mannheim- Feudenheim and heads south, where it crosses the Neckar and the tracks of the Upper Rhine Railway on the Carlo-Schmid Bridge, which is in an arch , before passing the Mannheim airport and the Maimarkt area . Then it crosses under the A 656 at the Mannheim-Neckarau junction, which has been developed as a motorway junction. In the further course it leads past the SAP arena before it crosses the Mannheim marshalling yard by means of an elevated bridge structure . Finally, it ends in the southeast of Mannheim with a connection to the B 36 . An extension leads straight ahead towards the large power station to the Rhine ferry Altrip – Mannheim or to the Rheinauhafen. For the B 38a, the truck toll applies on the entire route .


After the development of traffic in the 1960s, there was a large gap between the Neckarbrücken in the city center and the Neckarbrücke in the far east of the Mannheim-Seckenheim district and the A 6 motorway . The gap was to be closed with a new bridge, which was to be part of a middle motorway ring around Mannheim, in order to relieve the inner city of traffic as a tangent.

The B 38a was built in sections as a motorway-like expressway from the 1970s. At the end of 1983, the 2.3 kilometer long section between the marshalling yard and Casterfeldstrasse (B 36) was released for traffic, and in 1992 the junction-free connection to the B 36 was opened ties up.

The actual ring, in the south-west the extension over the Rhine to the B 9 and in the north over the B 38 to the A 659 , was not implemented. The Altrip community on the left bank of the Rhine and nature conservationists fought vigorously against the construction of the gap closure. The city of Ludwigshafen also did not actively support the route. In the meantime, it is no longer in the planning stage - as confirmed again for the 2015 Federal Transport Infrastructure Plan. The originally planned extension to the north through the “Feudenheimer Au” nature reserve towards the B 38 and A 659 has also been out of discussion for years.

Web links

Commons : Bundesstraße 38a  - collection of pictures, videos and audio files

Individual evidence

  1. Toll Collect, Die Mauttabelle 6.3 (Bundesstraßen) , December 10, 2017, p. 22, accessed April 18, 2018 (PDF 327 kB).
  2. Ministry of Transport and Infrastructure Baden-Württemberg: Hearing on the registration list for the Federal Transport Infrastructure Plan 2015. (PDF 828 kB) No. 3.42 B 38a, new Rhine bridge south of Mannheim / Ludwigshafen. (No longer available online.) September 13, 2013, p. 45 , archived from the original on April 3, 2018 ; accessed on April 12, 2018 .