Definition and Hazards Pyrophoric materials are substances that ignite instantly upon exposure to oxygen. They can also be water-reactive, where heat and hydrogen (a flammable gas) are produced. Other ...

In 2018, after a fire in Atlanta, the National Transportation Safety Board advised state departments of transportation to "evaluate materials under bridges and remove those that could pose the ...

"Allowing these types of hazardous material to be transported across the Ambassador Bridge — a bridge that is over 90 years old, not up to the same level of inspections, traffic safety features ...