Skansbron (Swedish: "The Fortlet Bridge") is a bascule bridge in central , 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.
Delayed by World War I, the works were finally begun in 1923, and by 1925 a double leaf steel drawbridge was completed, 14.9 metres wide, with a 10.7-metre wide roadway, and a horizontal clearance of 12.5 metres.
During the construction of the bridge, the north–south traffic flow was confined to a temporary 98-metre long wooden viaduct with a central main span 32.5 metres long and pipes for water, electricity, gas, and sewer underlying the roadway.
Coordinates: 59°18′12″N 18°04′47″E / 59.3033333333°N 18.0797222222°E