This is a collectionof the many Bridges in the Chicago Area. Chicago is concidered as the "Movable Bridge Capital of the World". The first bridge across the Chicago River was constructed over the north branch near the present day Kinzie Street in 1832. A second bridge, over the south branch near Randolph Street, was added in 1833. The first moveable bridge was constructed across the main stem at Dearborn Street in 1834. Today, the Chicago River has 38 movable bridges spanning it, down from a peak of 52 bridges. These bridges are of several different types, including trunnion bascule, scherzer rolling lift, swing bridges, and vertical lift bridges.