An official website of the City of Chicago

The .gov means it's official

Municipal government websites often end in .gov or .org. Before sharing sensitive information, make sure you're on a City of Chicago government site.

The site is secure.

The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Get the new, updated COVID-19 and flu vaccines. They're safe, effective, and can be taken together. Learn more at Chicago.gov/COVIDVax.

Chicago Movable Bridge Preservation Plan and Historic American Engineering Record (HAER)

CDOT is responsible for more than 300 bridge and viaduct structures, including 37 operable movable bridges along the Chicago and Calumet Rivers. CDOT designs, builds and maintains the structures that are a critical part of the city’s transportation network through its Capital Bridge and Bridge Maintenance Programs.

Below is a fully executed Programmatic Agreement Regarding the Preservation of Movable Bridges in the City of Chicago

Programmatic Agreement Regarding the Preservation of Movable Bridges in the City of Chicago

Below is the final HAER documentation for the Chicago Avenue Bridge over the North Branch of the Chicago River.
Final HAER Chicago Ave Bridge