原文传递
Federal Railroad Administration, Office of Safety Headquarters Assigned Accident Investigation Report HQ-2006-43, Union Pacific (UP), Monpelier, Idaho, June 6, 2006.
| 题名： | Federal Railroad Administration, Office of Safety Headquarters Assigned Accident Investigation Report HQ-2006-43, Union Pacific (UP), Monpelier, Idaho, June 6, 2006. |
| 关键词： | *Accident-investigations; *Railroad-trains; *Railroad-passenger-service; *Idaho-.;Commuter-transportation; Derailment-. |
| 摘要： | On June 6, 2006, westward Union Pacific Railroad Company (UP) train MNPHK-05 derailed 18 cars 11.3 miles east of Montpelier, Idaho. The manifest train was operating at 37 mph and consisted of three locomotives, 28 loaded and 76 empty cars. The first eight derailed cars remained upright with only the rear set of wheels off the rail. The last ten cars piled up with four cars coming to rest in a waterway leading to the Bear River. The incident occurred at 3:48 p.m. MDT, at milepost 103.5 on the Pocatello Subdivision in Bear Lake County. Two of the derailed cars were carrying hazardous material. The UTLX 662465, loaded with molten phenol, remained upright, and had only the rear set of wheels off the rails. The ECUX 459007, loaded with methyl ethyl ketone remained upright but perpendicular to the rails after the derailment. There were no injuries, no hazardous materials released and no evacuation. At the time of the derailment it was partly cloudy and the temperature was 90 DGF. The probable cause for the derailment is track alignment irregular (buckled/sunkink) T109. Recent track maintenance and a temperature change of 38 DGF between the morning low temperature and the temperature at the time of the derailment suggests thermal distortion of the track as the cause of the derailment. Total damages reported were $776,289 ($582,539 to rail cars and $193,750 to track structure). |
| 报告类型： | 科技报告 |
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