 The first five bridges were built at Clybourn Place (later Cortland Avenue) in 1902, Division Street over both the North Branch Canal (1903) and the Chicago River (1904), 95th Street over the Calumet River (1903) and at Western Avenue over the North Branch Canal (1904).During the same period of time, the Scherzer Company built seven of their rolling lift bridges over the Chicago Sanitary and Ship Canal, which was widened to accommodate larger flows from the recently reversed Chicago River.These bridges, built under the authority of the Chicago Sanitary District, only needed to be approved by the Corps of Engineers, not the Department of Public Works.