Bundesautobahn 661
- also called Osttangente Frankfurt (easttangent Frankfurt) or Taunusschnellweg - is a 40 km (25 mi) long Autobahn in Germany. It starts in Oberursel and goes along Bad Homburg, Frankfurt am Main, Offenbach am Main and Neu-Isenburg until it is ending in Egelsbach. Today's A 661 was opened with the sections Bad Homburg (today junction 3) and Frankfurt-Bonames (formerly junction 5b). While the road's extension to Oberursel-Nord was easy to build, the construction to Frankfurt-Eckenheim got significantly delayed. There was an interim end between Bonames and Eschersheim near the Bonameser Platz. After many years the extension to the Friedberger Landstraße followed. The section between Offenbach and Egelsbach was also already constructed, but at this time as a part of the A 49 which was planned as an Autobahn between Kassel and Darmstadt. After this plan had been abandoned this section became a part of the A 661. The section between the two others had been finalized step-by-step and was closed in 1995. At the newest section between the Friedberger Landstraße and Frankfurt-Ost (close to the Eissporthalle the lanes are very tight because of economy measures. There is no hard shoulder at the moment and the lanes are only separated by