Rollbahnbrücke, Road bridge in Kelsterbach, Germany

The Rollbahnbrücke is a road bridge in Kelsterbach that crosses over the A3 motorway and links two sections of the airport system. It enables traffic flow between the northern and southern areas of this important transportation corridor.

Construction of the two taxiway bridges began on 8 May 2009 and ended in 2010, when the deck slabs were lifted into place over several weekend closures of the A3. They link the existing airport operating areas with the new 2,800-metre northwest runway north of the motorway and the Cologne–Rhine/Main high-speed line.

The two taxiway bridges are named Rollweg Ost and Rollweg West, with the eastern crossing lying closer to the terminals. The five structures together span the A3, the Cologne–Rhine/Main high-speed line and the Airportring road, linking the 220-hectare North-West runway area to the existing airfield. The bridges were built unusually wide so drivers on the motorway below see little of the aircraft.

The bridge is part of a tunnel structure and offers four traffic lanes in each direction with separate emergency lanes. Vehicles travel under a continuous roof while aircraft land and take off above.

The bridges were built unusually wide so that drivers on the A3 below would see little of the aircraft above, avoiding unnecessary braking and gawking. The motorway passes beneath in a tunnel-like passage fitted with lighting and escape routes, and the eastern bridge, closer to the terminals, is over 200 metres long and up to 220 metres wide.