The Foundations of the Railway Bridge Over the B25 in Donauwörth-Video

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Video Summary

The presentation describes replacing a 1931 railway bridge over the B25 in Donauwörth, Germany, while minimizing disruption to a busy rail line. The new bridge was built beside the existing structure, then slid into place after demolition. Because soft, variable soils made excavation impractical, engineers improved the ground with non-grouted ductile iron piles, driven into dense sand and filled with grout. A geogrid-reinforced load-transfer platform separated the inclusions from the abutment foundations. Four crews completed the main work within a 60-hour track possession; the bridge slide took three hours. Traffic resumed on February 1, 2025.

Keywords

Donauwörth railway bridge replacement

bridge slide operation

ductile iron piles

geogrid-reinforced load transfer platform

railway infrastructure construction