Hochdonn High Bridge

The Hochdonn High Bridge is a railway bridge in the Marsh Railway crossing the Kiel Canal near Hochdonn, Germany. It is a riveted steel bridge, "exposed to extreme railway traffic".
The central part of the main span suffered from general deterioration, but damage caused by two ship collisions made it necessary to substitute a new center part. On 6 November 2006 the 1.465-metric-ton 121.10-meter long span was removed and carefully passed between the 120-meter gap of the two existing support points. Once removed, the steel structure was lowered onto a transport barge. The new structure that arrived the night before on another transport barge was lifted into place. While lowering and lifting work was going on, this section of the canal was closed and a large number of ships were waiting to pass; the alternative was to navigate around the northern tip of Denmark.

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