This happened at 3:30pm as we had a torrential downpour of rain yesterday afternoon. Traffic on I-75 was closed for hours.
I decided to head north after work to avoid the traffic as I normally take I-75 south for a few exits. The exit I normally take is the University Parkway exit where this 50 car pile up happened. I barely found a way to travel north to avoid bumper to bumper gridlock and this was even several hours later at 7pm.
By the time I was heading home it was 1AM and I drove through where the accident was and it was all clear by then and like it never happened.