Tranebergsbron

Story

Tranebergsbron is a double arch bridge in central Stockholm, Sweden. Stretching over the strait Tranebergssund it connects the major island Kungsholmen to the western suburb Bromma. It has a road and also metro tracks.HistoryPart of the ambition of King Gustav III (1746–1792) to construct a road from the city to the palace at Drottningholm Palace, the first bridge at this location was a floating bridge finished in 1787, defrayed by the funds granted the king as christening gift while named crown prince in 1779. As neglected maintenance made it necessary to rebuild the bridge by the 1850s, the new floating bridge was then relocated slightly southwards, thus reaching into the valley on the western shore.As population in the western suburbs grew in the early 20th century, the necessity of a bridge allowing cars, trucks, and trams became increasingly apparent, and 1911-1914 a pontoon bridge was built in parallel to the old bridge. With its concrete abutments, and steel rafts and superstructure, the bridge was 227 metres in length, 6,3 metres wide, and had a 37 metres long swing span to allow the passage of ships. Soon insufficient, it was widened to 8,5 metres in 1921-22, and at the same time the old floating bridge closed for traffic.