Editing Union Pacific Railroad (section)

===21st century===
* September 4, 2007: a Union Pacific train derailment split the small town of [[Sergeant Bluff, Iowa]]. About 16 cars derailed, most carrying salt that spilled into snow-like piles. The derailment interrupted traffic for about two hours.<ref>{{Cite web |last=Alicia Ebaugh, Journal staff writer |date=September 4, 2007 |title=Derailment cuts traffic in Sergeant Bluff |url=http://siouxcityjournal.com/news/derailment-cuts-traffic-in-sergeant-bluff/article_ff021c78-42b3-510d-baa7-f70c5404d375.html |access-date=October 29, 2015 |website=Sioux City Journal}}</ref>
* June 24, 2012: three crew members died and caused a property damage of $15 million when two Union Pacific trains collided head-on just east of [[Goodwell, Oklahoma]]. The eastbound train passed a stop signal on the main track and struck the westbound train in a siding about {{Convert|1|mi|spell=in}} east of the meeting point.<ref>{{Cite news |date=June 26, 2012 |title=NTSB: Why didn't train wait before Oklahoma crash? |url=http://www.washingtontimes.com/news/2012/jun/26/ntsb-why-didnt-train-wait-oklahoma-crash/?page=all |access-date=July 19, 2012 |work=The Washington Times}}</ref> The [[National Transportation Safety Board|NTSB]] provided the probable causes as eastbound train's operator's vision problems and failure by the conductor to get backup assistance as required. NTSB stated UP did not comply with its own policies when it medically recertified the operator. The company only had six color tests despite the policy requiring a color test for 10 signals.<ref>{{Cite web |date=June 18, 2013 |title=Train engineer's vision problems led to deadly Oklahoma wreck, NTSB rules |url=https://oklahoman.com/article/3853801/train-engineers-vision-problems-led-to-deadly-oklahoma-wreck-ntsb-rules/ |access-date=November 2, 2019 |website=Oklahoman.com}}</ref> 
* November 15, 2012: A UP train [[Midland train crash|struck a parade float]] in Midland, Texas, killing four and injuring 16 passengers on the parade float.
* May 25, 2013: in [[Chaffee, Missouri]], a Union Pacific train collided with a [[BNSF Railway|BNSF]] train at a [[level junction]], injuring seven, and causing damages exceeding $10 million. The accident caused a [[Missouri Route M]] overpass to partially collapse and caused a fire.<ref>{{Cite web |title=NTSB Launches Go-Team to Missouri to Investigate Collision Between Two Freight Trains That Partially Collapsed a Highway Overpass |url=https://www.ntsb.gov/news/2013/130525.html |access-date=May 26, 2013 |publisher=National Transportation Safety Board}}</ref><ref>{{Cite web |last=Hendricks |first=Christy |title=NTSB investigating after train collision, overpass collapse in Scott County |url=http://www.kfvs12.com/story/22421572/crews-on-scene-of-train-collision-overpass-collapse |url-status=dead |archive-url=https://web.archive.org/web/20171201040216/http://www.kfvs12.com/story/22421572/crews-on-scene-of-train-collision-overpass-collapse |archive-date=December 1, 2017 |access-date=May 26, 2013 |publisher=KFVS12}}</ref> The investigation concluded the engineer most likely fell asleep, due to [[sleep apnea]]. The uncontrolled train violated four progressively more restrictive signals before colliding with the BNSF train at roughly {{Cvt|40|mph}}. Three months later, the Route M overpass reopened with a new design.<ref>{{Cite web |title=HQ-2013-13 (Finalized) &#124; FRA |url=http://www.fra.dot.gov/eLib/details/L17184#p1_z25_gD_lAC |url-status=live |archive-url=https://web.archive.org/web/20160406080441/http://www.fra.dot.gov/eLib/details/L17184 |archive-date=April 6, 2016 |access-date=March 27, 2016}}</ref><ref>{{Cite web |title=Local News Releases |url=http://www.modot.org/southeast/news_and_information/District10Release.shtml?action%3DdisplaySSI%26newsId%3D188581 |url-status=dead |archive-url=https://web.archive.org/web/20160412080744/http://www.modot.org/southeast/news_and_information/District10Release.shtml?action=displaySSI&newsId=188581 |archive-date=April 12, 2016 |access-date=March 27, 2016}}</ref>
* June 3, 2016: [[2016 Union Pacific oil train fire|a 96-car oil train derailed]] in the [[Columbia River Gorge]] near [[Mosier, Oregon]]. Eleven cars derailed, at least one caught on fire, and {{Cvt|42000|gal|m3}} of [[Bakken Shale|Bakken]] crude oil spilled, some going into the [[Columbia River]]. Some {{Convert|10000|gal|m3}} were eventually recovered.[[File:Going Street Column.jpg|thumb|upright|Support column damaged in September 2019 Portland accident|alt=]]
* Mid-late 2018: the [[Niland Geyser]], a moving mud pot, encroached on the railroad near the eastern shore of the [[Salton Sea]], requiring extensive engineering work to first delay the movement and then build a temporary diversion.<ref name="latimes">{{Cite news |last1=Reyes-Velarde |first1=Alejandra |last2=Lin II |first2=Rong-Gong |date=November 1, 2018 |title=A San Andreas fault mystery: The 'slow-moving disaster' in an area where the Big One is feared |url=https://www.latimes.com/local/lanow/la-me-ln-niland-mud-pot-20181101-story.html |work=Los Angeles Times}}</ref><ref name="natgeo">{{Cite news |last=Andrews |first=Robin George |date=November 9, 2018 |title=A bubbling pool of mud is on the move, and no one knows why |url=https://www.nationalgeographic.com/science/article/bubbling-pool-mud-moving-california-dont-know-why-geology |url-status=dead |archive-url=https://web.archive.org/web/20210225163129/https://www.nationalgeographic.com/science/article/bubbling-pool-mud-moving-california-dont-know-why-geology |archive-date=February 25, 2021 |work=National Geographic}}</ref><ref name="hgs">{{Cite journal |last1=Francuch |first1=Dean G |last2=Deane |first2=Travis |last3=Zamora |first3=Carol |date=2019 |title=The meandering Mundo Mud Pot: Or how Salton Sea tectonics affect international trade |url=https://trid.trb.org/view/1692604 |journal=Proceedings of the 70th Highway Geology Symposium |pages=439–456}}</ref>
* September 7, 2019: a Union Pacific train of two locomotives and three tank cars carrying [[liquefied petroleum gas]] derailed and crashed into an overpass support column at the [[Albina Yard]] in [[Portland, Oregon]].<ref>{{Cite news |date=September 7, 2019 |title=Union Pacific train with liquefied gas derails in Portland |url=https://www.apnews.com/18aeb3b85d7d4f1ab6264fdc40170fa5 |access-date=September 9, 2019 |work=Associated Press}}</ref><ref>{{Cite news |date=September 7, 2019 |title=Union Pacific train derails in Portland's Albina Yard, cracks support beam of overpass |url=https://www.kptv.com/news/union-pacific-train-derails-in-portland-s-albina-yard-cracks/article_3af68c88-d1ac-11e9-90c1-b78a34e9b1f1.html |access-date=September 9, 2019 |work=Fox 12 Oregon}}</ref> The support column is for the eastbound lanes of the six-lane Going Street overpass, which is the only public access to the major industrial area [[Swan Island Industrial Park|Swan Island]] for cars and trucks. Four lanes were left unsafe after the derailment.<ref>{{Cite news |last=Young |first=Molly |date=September 8, 2019 |title=Swan Island traffic could be backed up for months after train slams into vital Going Street bridge |url=https://www.oregonlive.com/news/2019/09/swan-island-traffic-could-be-backed-up-for-months-after-train-slams-into-vital-going-street-bridge.html |access-date=September 9, 2019 |work=The Oregonian}}</ref><ref name="Theen 2019">{{Cite web |last=Theen |first=Andrew |date=September 25, 2019 |title=Portland approves $1 million repair contract for Going Street bridge smashed by train |url=https://www.oregonlive.com/commuting/2019/09/portland-approves-1-million-repair-contract-for-going-street-bridge-smashed-by-train.html |access-date=October 16, 2019 |website=oregonlive}}</ref> Two of six lanes remain closed as of November 14, 2019.<ref>{{Cite web |last=Stein |first=Rosemarie |date=November 14, 2019 |title=Portland metro Thursday traffic: PBOT gets a fourth lane open on Going Street Bridge |url=https://www.oregonlive.com/commuting/2019/11/portland-metro-thursday-traffic-pbot-gets-a-fourth-lane-open-on-going-street-bridge.html |access-date=January 6, 2020 |website=oregonlive}}</ref> The cause of the crash was broken rails.<ref>{{Cite news |date=September 9, 2019 |title=Union Pacific identifies broken rail as cause of Portland train derailment, crash into columns |url=https://www.kptv.com/news/union-pacific-identifies-broken-rail-as-cause-of-portland-train/article_6a95ee52-d364-11e9-a560-771c3619a5ac.html |access-date=September 10, 2019 |work=Fox 12 Oregon}}</ref> There was nobody on board the train which was remotely operated at the time of crash.<ref name="Theen 2019" /> In May 2020, another Union Pacific derailment damaged a different overpass which ''[[The Skanner]]'' described as an ongoing safety concern.<ref>{{Cite web |last=Sorenson |first=Saundra |title=Three-Car Derailment in North Portland Signals Ongoing Safety Concerns |url=https://www.theskanner.com/news/northwest/30001-three-car-derailment-in-north-portland-signals-ongoing-safety-concerns |access-date=October 14, 2020 |website=The Skanner News}}</ref>
* March 21, 2022: A Union Pacific freight train derailed and fell from a viaduct in [[Colton, California|Colton]], California.<ref>{{Cite web |date=March 21, 2022 |title=Freight train derails in Colton |url=https://ktla.com/news/local-news/freight-train-carrying-lumber-derails-in-colton/ |access-date=March 22, 2022 |website=KTLA}}</ref>
*September 2023: The railroad furloughed 138 workers, a small fraction of its 50,000 employees, but enough to cause a reprimand from the [[Federal Railroad Administration]] (FRA) that indicated its inspection of UP trains determined the rates of defects in locomotives and cars was double the national average, which the FRA said, was caused by a dearth of personnel.<ref>{{Cite web |last=Fung |first=Esther |date=21 September 2023 |title=Union Pacific Draws Safety Regulator's Ire After Worker Furloughs |url=https://www.wsj.com/business/logistics/union-pacific-draws-safety-regulators-ire-after-worker-furloughs-ebc7952e |access-date=19 March 2024 |website=[[The Wall Street Journal]]}}</ref>
*December 18, 2024: A Union Pacific train crashed into a semi-truck that was hauling an oversize load in [[Pecos, Texas]], resulting in all four locomotives and multiple freight cars with metal shipping containers derailing, including three that were carrying potentially hazardous materials (lithium-ion batteries and airbags), but none were released. Leaked diesel fuel was also contained. The Pecos Chamber of Commerce was also damaged as it was hit by the train during the derailment. Both Union Pacific crew members were killed and 3 others were injured.<ref>{{cite web|title=Union Pacific train derails after hitting tractor-trailer on Texas railroad tracks, killing two: video|url=https://www.foxnews.com/us/union-pacific-train-derails-after-hitting-tractor-trailer-on-texas-railroad-tracks-killing-two-video|date=December 19, 2024}}</ref>

====San Antonio area====
On June 28, 2004, a UP train collided with an idle [[BNSF Railway|BNSF]] train in [[Macdona, Texas|a San Antonio suburb]]. In the course of the derailment, a 90-ton [[tank car]] carrying liquified [[chlorine]] was punctured. As the chlorine vaporized, a toxic "yellow cloud" formed, killing three and causing 43 hospitalizations. The costs of cleanup and property damaged during the incident exceeded $7 million.<ref>{{Cite web |title=Chlorine Rail Car Incident |url=http://www.aristatek.com/newsletter/0708August/TechSpeak.pdf |access-date=April 18, 2010 |publisher=Aristatek}}</ref> [[File:UP Macdona Derailment.jpg|thumb|Deadly [[derailment]] in [[Macdona, Texas]], on June 28, 2004|alt=]]
Investigations of the Macdona incident revealed several serious safety lapses on the part of the Union Pacific and its employees, including employees not following the company's own safety rules.<ref name="nytimes.com">{{Cite news |last1=Nordberg |first1=Jenny |last2=Bogdanich |first2=Walt |date=November 17, 2004 |title=Regulators Plan to Step Up Union Pacific Safety Checks |url=https://www.nytimes.com/2004/11/17/politics/17rail.html |work=The New York Times}}</ref> While the immediate cause of the derailment was the UP crew's "fatigue", chlorine [[tank car]]s had been improperly placed near the front of the train, a danger in the case of derailment.<ref>{{Cite web |title=NTSB – Remarks by Robert L. Sumwalt |url=https://www.ntsb.gov/speeches/sumwalt/rls070522.htm |access-date=April 19, 2010 |publisher=National Transportation Safety Board}}</ref>

The Macdona incident was not the first derailment in the [[San Antonio]] area. Between May and November 1994, Union Pacific trains derailed five times, killing at least 4 people.<ref>{{Cite news |date=November 11, 2004 |title=Man Killed in Fifth Train Derailment in San Antonio Since May |url=https://www.nytimes.com/2004/11/11/national/11derail.html |access-date=April 18, 2010 |work=The New York Times}}</ref> Between June 2004 and March 2005, 10 trains derailed, killing as many people.<ref name="query.nytimes.com">{{Cite news |last=Bogdanich |first=Walt |date=March 19, 2005 |title=Texas Has Pact With Railroad To Move Lines |url=https://query.nytimes.com/gst/fullpage.html?res=950DE7DA113CF93AA25750C0A9639C8B63 |work=The New York Times}}</ref>

In the aftermath of Macdona, the [[Federal Railroad Administration]] signed a compliance agreement with the railroad in which the railroad promised to rectify the "notable deficiencies" that regulators found.<ref name="nytimes.com" /><ref name="query.nytimes.com" /> But the relative impunity UP seemed to exhibit regarding the derailment led to suggestions that the FRA was far "too cozy&nbsp;... to the railroads."<ref name="nytimes.com" /> In March 2005, Texas Governor [[Rick Perry]] supported a plan to reroute trains around large urban population centers in Texas, including San Antonio, but such a plan was purely voluntary and had no timetable associated.<ref name="query.nytimes.com" />

Trains have continued to derail in the area<ref>{{Cite web |title=Train derailment leaves big mess |url=http://www.pro8news.com/news/local/86466522.html |url-status=dead |archive-url=https://web.archive.org/web/20100308133352/http://www.pro8news.com/news/local/86466522.html |archive-date=March 8, 2010 |access-date=April 18, 2010 |publisher=pro8news}}</ref><ref>{{Cite news |title=Train derails near New Braunfels |url=http://www.mysanantonio.com/news/Train_derails_near_New_Braunfels_without_injuries.html |access-date=April 18, 2010 |work=San Antonio Express News}}{{dead link|date=September 2017|bot=InternetArchiveBot|fix-attempted=yes}}</ref><ref>{{Cite news |last=Davila |first=Vianna |date=November 4, 2009 |title=UP train derails in Atascosa County |url=http://www.mysanantonio.com/news/local_news/Union_Pacific_train_derails_in_Atascosa_County.html |archive-url=https://archive.today/20120904012918/http://www.mysanantonio.com/news/local_news/article/UP-train-derails-in-Atascosa-County-840581.php |archive-date=September 4, 2012 |access-date=April 18, 2010 |work=San Antonio Express News}}</ref> including an incident in June 2009 where tank cars containing [[chlorine]] and [[Naphtha|petroleum naptha xylene]] derailed, but did not spill.<ref>{{Cite news |title=Train derails near Schulenburg, spills chemical |url=http://www.victoriaadvocate.com/news/2009/jun/15/er_train_derailment_061609_54757/ |access-date=April 15, 2010 |work=The Victoria Advocate}}</ref><ref>{{Cite web |title=Schulenburg Train Derailment |url=http://www.epaosc.org/site/site_profile.aspx?site_id=5112 |access-date=April 18, 2010 |publisher=United States Environmental Protection Agency}}</ref>{{Update inline|date=September 2018}}