BNSF Railway says human error caused a train derailment in November that sent more than 20,000 gallons of ethanol into the Mississippi River in Wisconsin.
In an accident report filed with the Federal Railroad Administration, BNSF says a train operator applied the dynamic brakes too rapidly, causing 25 cars to jump the tracks near Alma. The derailment remains under investigation by the agency.
The the 112-car train was traveling south at 26 mph when it derailed on Nov. 7. Five of its tankers leaked a combined 20,413 gallons of ethanol. There were no injuries in the derailment, which caused about $2.1 million damage to rail equipment and track. Those damages do not reflect the cost of monitoring the Mississippi River, which BNSF is paying for.