Illinois Governor JB Pritzker gets out from a Chicago water taxi after a news conference, Monday, Aug. 25, 2025, in Chicago. (AP Photo/Nam Y. Huh) (Nam Y. Huh/AP)Illinois on Wednesday unveiled its latest six-year, $50.6 billion infrastructure plan for the state’s roads, bridges, railways, airports and more. It covers 8.4 million square feet of bridges and 7,107 miles of state roads, according to the Illinois Department of Transportation. How Illinois funds transportationState funding is largely made possible by legislation dubbed “Rebuild Illinois” that passed on bipartisan lines in Gov. Road and bridge funding comes mostly from the state’s Road Fund, which is separate from the General Revenue Fund, which largely sustains the state’s day-to-day operations.