It is the most heavily used railway bridge in Germany with more than 1,200 trains daily.
Originally, the bridge was both a railway and road bridge. However, after its destruction in 1945 and its subsequent reconstruction,,.it was only accessible to rail and pedestrian traffic.
and one more thing love locks have been considered one of Cologne’s most charming traditions. Couples fix padlocks to the railings, to ensure everlasting love, they then throw the key into the Rhein river.