Arthur-von-Weinberg-Steg, Pedestrian and bicycle steel arch bridge in Fechenheim, Germany.

The Arthur-von-Weinberg-Steg is a steel arch bridge carrying a flat deck for pedestrians and cyclists across the Main at river kilometre 44.670, linking Fechenheim in Frankfurt with Bürgel in Offenbach. Integrated into the structure are pipelines that connected the Cassella chemical works in Fechenheim with the former Hoechst AG plant in Offenbach.

The bridge was built in 1981 and named in 1983 after Arthur von Weinberg, a Frankfurt industrialist and patron who died in the Theresienstadt ghetto in 1943. Its pipelines linked the Cassella chemical plant in Fechenheim with the former Hoechst AG plant in Offenbach. From 1984, wastewater from the Offenbach plant was piped across for treatment at Fechenheim; the Offenbach plant closed in 2010.

The bridge joins Fechenheim and Bürgel, creating a connection between two neighboring districts across the Main River. Local residents use it regularly to move between these areas on foot or by bicycle.

The bridge provides a direct, level path for walkers and cyclists crossing the river with no steep sections. The simple flat design makes it easy to use at any time of day or year.

The pipeline was not incidental: from 1984 it carried wastewater from Hoechst's Offenbach plant to the treatment facility at the Cassella works in Fechenheim. That plant closed in 2010, while Cassella is now run by Allessa. The bridge crosses the Main at river kilometre 44.670.