A similar fire almost destroyed the Liberty Bridge in Pittsburgh last summer.
In that case a contractor had also left plastic construction materials lying around, which they clamed were not flammable.
One of their welders set it off with a spark.
A crackhead can destroy an interstate bridge? Huh?
“Flammable” has a clinical defintion. Wood and coal are not flammable, just to give you an idea of how the clinical defintions work.