Project Description: Overview Two tunnels of the Cologne-Frankfurt high-speed rail line are crossing under the Kreuz and is situated at the northeastern corner of Frankfurt Airport, the usage of approximately 320,000 cars daily, it is the most heavily used interchange in the Europe This ten lane crossing with eight bridges is one of the most complex in Europe.
The new construction of the Cologne-Rhine / Main railway rapid-transit route, which crosses the Autobahnkreuz in the Frankfurter Kreuz tunnel, began on 13 December 1995, and construction began on 18 March 1996 In the four quadrants of the clover leaf; The new central building spans the main and parallel tracks of the A 5 over a total length of over 100 meters with four fields. The four individual bridges now reach a total width of almost 80 meters. The Frankfurter Kreuz is also crossed from the two eastern access tunnels of the Flughafen- Fernbahnhof. It was also a particular challenge that no lane could be blocked during the entire reconstruction. This led to the fact, for example, that the railway underpass of the A 3 was mined and not in the more cost-effective open construction.
On completion of the construction work on 19 December 2000, a quarter earlier than originally planned - Deutsche Bahn's work had already been completed 19 months earlier - a memorial was erected, and the entire building was officially handed over by Federal Finance Minister Hans Eichel. A total of 173 million euros were used in the conversion, of which 45 million euros were accounted for by the actual cross.