The blaze was first reported around 6:30 p.m. ET, with the northbound lanes collapsing around 7 p.m. According to the Atlanta Journal-Constitution , there were no injuries to motorists or first responders. The cause of the blaze has not been determined. Officials said the road will be closed indefinitely. City crews are working through the night on an initial damage assessment. A major effect on traffic in a city already known for gridlock is expected after a massive fire caused a bridge on Interstate 85 to collapse in Atlanta. Georgia's top transportation official said there's no way to tell when the highway, which carries 250,000 cars a day, can be safely reopened to traffic in either direction following the collapse, which happened Thursday afternoon during rush hour. "Metro ATL facing another traffic nightmare, especially with people going on Spring Break tomorrow. Plan accordingly!" the Governor's Office of Highway Safety in Georgia...