Cortland Street Drawbridge

The Cortland Street Drawbridge (originally known as the Clybourn Place drawbridge) over the Chicago River is the original Chicago-style fixed-trunnion bascule bridge, designed by John Ericson and Edward Wilmann. When it opened in 1902 on the north side of Chicago, it was the first such bridge built in the United States. The bridge was a major advance in American movable bridge engineering, and the type was employed for over 50 additional bridges in Chicago alone. The bridge was designated as an ASCE Civil Engineering Landmark in 1981, and a Chicago Landmark in 1991.