If anyone needs a reminder about just how dangerous truck accidents can be to the public, read this. On July 15, 2009 in Hazel Park, Michigan, a tractor-trailer exploded under an overpass causing the overpass itself to literally melt and disintegrate. The driver of a car was on a winding section of Interstate 75 when it lost control and spun into a passing semi. The semi was hauling over 13,000 gallons of fuel. It lost control and flipped, causing a second tractor-trailer carrying produce to crash as well.
The fuel tanker collided with an overpass rail, and fuel began to spew out over the highway. The fuel caught fire, sending the truck into explosive flames which began burning the overpass. The heat was so intense that the overpass began to melt and fell on top of the already burning big-rig. The collapse caused another, even bigger explosion according to passersby. Fortunately all three drivers escaped with only minor injuries and no deaths were reported.
Boy, were they lucky. This could easily have been an awful tragedy.