Skansbron

Skansbron is a bascule bridge in central Stockholm, Sweden. Stretching over the canal Hammarbykanalen, it connects the major island Södermalm to the southern mainland district Södra Hammarbyhamnen.

Before the lake Hammarbysjön was transformed into a canal in the 1920s, Skanstull, the southern tollgate of the city, was surrounded by fortifications, including a moat over which a simple wooden bridge led into the city.

In 1914, the City Council had determined the double traffic load at Slussen, caused by west-east going ships and north-south bound vehicles, would be solved by rerouting the ships south of Södermalm through a canal to be built.

Source: Wikipedia