The Demka railway bridge is a railway bridge over the Amsterdam-Rhine Canal in Utrecht. The bridge is a steel braced bar arch bridge and was built in 1966 to replace the old, much smaller railway bridge that had to disappear due to the widening of the canal. The span is 173 meters. The bridge is named after the nearby former Demka steel factory. After a second bridge, the Werkspoorbrug, was opened next to the Demka railway bridge in 2002, the old bridge was temporarily decommissioned and renovated. In April 2007, the Demka railway bridge was put back into service at the same time as the doubling of the track between Amsterdam Bijlmer and Utrecht Centraal was completed. The bridge has since been used by trains from Utrecht to Amsterdam, trains to Utrecht run over the Werkspoorbrug. Pedestrians, cyclists and the like can also use the bridge in both directions over a narrow lane.