In a fully loaded Infrastructure Insider, we go over the recent bridge troubles in Chicago and the Chicagoland area. Associate Editor Tim Bruns talked with the Chicago DOT after bridge cracking was discovered on Lake Shore Drive (5:45). The I-80 bridge in Joliet also is in trouble. We talked to Joliet Mayor Bob O'Dekirk (22:45) and the Illinois DOT's Sarah Wilson (28:05) on next steps. Managing Editor Brian Budzynski interviews 3M's Andy Dubner on automated vehicles and pavement markings (39:12).