The Harrison Street Bridge is a fixed-trunnion bascule bridge in Chicago, Illinois, crossing the South Branch Chicago River.

The first bridge opened in 1877 as a hand-operated swing bridge after nearby property owners advocated for the crossing.

The "Scherzer" bridge was eventually closed in December 1959 in favor of the current fixed-trunnion bridge, which opened on August 23, 1960.

[2] The western bridge approach, situated above railroad tracks leading to Chicago Union Station, is currently under reconstruction.

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