On August 3, 1977, traffic on Interstate 35W ground to a halt between County Road 42 and Highway 13 on the south side of the Twin Cities.
There was no accident – just thousands of people heading for the same new building at the same time.
By the end of the afternoon, roughly 29,000 people had walked into Burnsville Center, and workers had counted about 10,800 cars in the parking lot…