This is a PDF found on the City of Chicago Web site homepage on February 25, 2009 under the link, "Know about Current City Construction Projects". There are tons of specific locations and addresses for various projects all over the city controlled by many different departments.
This document was meant to serve as a current status for Mayor Daley and his staff, so that he knew what was up ("MONTHLY MAYORAL INFRASTRUCTURE PRESENTATION"). Certainly much may have changed in the ensuing months. It would be cool if people could provide their own updates on what's going on at these locations.