It’s an anniversary many of those involved would rather forget.
September 3, 1999 began like any other day, but for those travelling on the 401 between Chatham and Windsor, it quickly descended into chaos.
Around 8 o’clock that morning, a patch of extremely dense fog covered the highway near Manning Road, reducing visibility to less than a metre.
A transport slowed down suddenly, setting off a fiery chain reaction crash that involved a total of 87 vehicles.
In the end, eight people were killed and 45 others hurt.
A number of safety measure have come into effect since that tragic crash, including widening of the highway and adding rumble strips to the shoulders.