Rio Tinto Group, the world’s biggest iron ore exporter, warned shipments of the steelmaking material will be impacted this ...

A trestle bridge collapsed while a freight train was crossing on Saturday, sending a railcar carrying urea into Mary’s River, according to the Portland & Western Railroad.

PORTLAND, Ore. (KOIN) — A railroad bridge collapsed ... a spokesperson for Portland & Western Railroad said one car that derailed into the river was carrying urea, a chemical compound used ...