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Accident Report Detail

Railroad Accident Brief: Collision of Two Union Pacific Railroad Freight Trains, Texarkana, Texas

Executive Summary

​On September 8, 2015, at 12:34 a.m. central daylight time, westbound Union Pacific Railroad (UP) freight train AMNML-07 (striking train) collided into the side of northbound UP freight train ALDAS-06 (struck train) near Texarkana, Texas. The striking train was traveling west on the main track of the Pine Bluff Subdivision, and the struck train was traveling north on the Little Rock Subdivision. The trains collided at a diamond crossing (Texarkana Interlocking) of the two subdivisions. Two locomotives of the striking train and seven cars (numbers 13–19) of the struck train derailed. The engineer and conductor of the striking train sustained minor injuries; neither crewmember in the struck train was injured. The lead locomotive of the striking train released about 4,000 gallons of diesel fuel. The locomotive event recorder data indicated the striking train was traveling at 19 mph when the engineer made an emergency brake application. At the time of the collision, the train had slowed to about 6 mph. The estimated damage was $4.66 million. At the time of the accident, it was dark, the sky was clear, the visibility was 10 miles or more, and the temperature was 82°F.

Probable Cause

​The National Transportation Safety Board determines that the probable cause of the accident was the failure of the westbound train crewmembers to respond to the wayside signal indications that required them to slow and to stop the train prior to the Texarkana Interlocking, because they were likely asleep. Contributing to the accident was the lack of a functioning positive train control system.

Accident Location: Texarkana , TX USA  
Accident Date: 9/8/2015
Accident ID: DCA15FR014

Date Adopted: 10/12/2017
NTSB Number: RAB1708
NTIS Number:  

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