About 300 freight trains have left the tracks across 5,000 miles of railroad across the state. Most of the derailments have been relatively minor, causing less than $100,000 in damage and occurring at low speeds. But some, such as an oil train derailment in Westmoreland County last year, have been more severe. Get more details on the past 10 years of derailments by clicking on each county on the map and viewing our data below.

Source: Federal Railroad Administration