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8/5/2025
 
 
 
 
 
Owner: Union Pacific Railroad Company
Model:EMD SD70MBuilt As:UP 3831 (SD70M)
Serial Number:M20036559-9Order No:M20036559
Frame Number:M20036559-9Built:6/2004
Other locos with this serial:  UP 3831(SD70M)
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UP 3831
Title:  UP 3831
Description:  At Ferrier Road between Vader and Winlock
Photo Date:  7/8/2004  Upload Date: 3/26/2010 2:12:41 AM
Location:  Winlock, WA
Author:  Rob Jacox
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  763   Comments: 0
Onto the Chicago Wye
Title:  Onto the Chicago Wye
Description:  Railfans watch as UP 3831 pulls a container train onto the High Wye at the Durand depot.
Photo Date:  4/30/2005  Upload Date: 6/15/2005 5:30:37 PM
Location:  Durand, MI
Author:  Gregg Pullano
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  825   Comments: 0
UP 3831
Title:  UP 3831
Description: 
Photo Date:  8/28/2005  Upload Date: 8/29/2005 3:43:55 AM
Location:  Fort Worth, TX
Author:  Richard Whitenight
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  622   Comments: 0
UP 3831
Title:  UP 3831
Description: 
Photo Date:  5/30/2006  Upload Date: 5/31/2006 12:13:36 AM
Location:  Arlington, TX
Author:  Richard Whitenight
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  617   Comments: 0
UP 3831
Title:  UP 3831
Description: 
Photo Date:  5/30/2006  Upload Date: 5/31/2006 12:13:37 AM
Location:  Arlington, TX
Author:  Richard Whitenight
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  580   Comments: 0
UP 3831 Leads a Doublestack Train Slowly Over the Kate Shelley High Bridge at the end of a Snow Storm
Title:  UP 3831 Leads a Doublestack Train Slowly Over the Kate Shelley High Bridge at the end of a Snow Storm
Description: 
Photo Date:  11/10/2006  Upload Date: 11/12/2006 11:01:44 PM
Location:  Boone, IA
Author:  Robert Garton
Categories:  Bridge,Winter,Action
Locomotives:  UP 3831(SD70M) UP 8397(SD70ACe)
Views:  1402   Comments: 2
Tied Down Northbound Auto Train
Title:  Tied Down Northbound Auto Train
Description:  I found UP Train AMXAS 25 tied down on Dexter Siding. The trailing Unpatched SP was shut down, the SD70M was in autostart mode. The message center read, "Won't crank, ground cutout open."
Photo Date:  5/27/2007  Upload Date: 5/28/2007 2:38:13 AM
Location:  Dexter, MO
Author:  Zach Pumphery
Categories: 
Locomotives:  UP 3831(SD70M) SP 144(AC44CW)
Views:  1483   Comments: 1
UP 3831
Title:  UP 3831
Description: 
Photo Date:  6/23/2007  Upload Date: 6/24/2007 8:40:25 PM
Location:  Naviska, AZ
Author:  Eric Rodriguez
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  615   Comments: 0
UP 3831
Title:  UP 3831
Description:  UP 3831
Photo Date:  9/22/2008  Upload Date: 9/22/2008 10:38:11 PM
Location:  Alorton, IL
Author:  Keith B
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  528   Comments: 0
UP 3831
Title:  UP 3831
Description:  UP 3831
Photo Date:  9/22/2008  Upload Date: 9/22/2008 10:38:26 PM
Location:  Alorton, IL
Author:  Keith B
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  556   Comments: 0
UP 3831
Title:  UP 3831
Description:  UP 3831
Photo Date:  9/22/2008  Upload Date: 9/22/2008 10:38:37 PM
Location:  Alorton, IL
Author:  Keith B
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  535   Comments: 0
CSX R602 reroute
Title:  CSX R602 reroute
Description: 
Photo Date:  2/22/2009  Upload Date: 2/22/2009 12:08:27 PM
Location:  Montezuma, GA
Author:  Darryl Hill
Categories: 
Locomotives:  BNSF 7562(ES44DC) BNSF 901(C40-8W) UP 3831(SD70M)
Views:  1154   Comments: 0
UP 2001
Title:  UP 2001
Description:  AASFX 25 crosses the Meramec River.
Photo Date:  7/25/2009  Upload Date: 7/25/2009 3:34:46 PM
Location:  Jedburgh, MO
Author:  Matthew Chapman
Categories: 
Locomotives:  UP 2001(SD70M) UP 8330(SD70ACe) UP 3831(SD70M)
Views:  960   Comments: 1
Westbound UP Auto Train
Title:  Westbound UP Auto Train
Description:  Pulling into UP Fairfax Yard is UP Train AASFX 25 with 1 of the Olympic Torch Relay Units on the point.
Photo Date:  7/25/2009  Upload Date: 7/25/2009 11:04:50 PM
Location:  Fairfax, KS
Author:  Zach Pumphery
Categories: 
Locomotives:  UP 2001(SD70M) UP 8330(SD70ACe) UP 3831(SD70M)
Views:  1229   Comments: 1
UP 3831 east
Title:  UP 3831 east
Description:  Manifest.
Photo Date:  5/3/2010  Upload Date: 5/3/2010 9:52:21 PM
Location:  Omaha, NE
Author:  Allan Love Jr.
Categories: 
Locomotives:  UP 3831(SD70M) CSX 4757(SD70MAC)
Views:  525   Comments: 0
UP 4352
Title:  UP 4352
Description: 
Photo Date:  7/15/2010  Upload Date: 7/16/2010 9:39:48 PM
Location:  Elmhurst, IL
Author:  Larry Amaloo
Categories: 
Locomotives:  UP 4352(SD70M) UP 3831(SD70M)
Views:  749   Comments: 0
UP ZCSSC-12
Title:  UP ZCSSC-12
Description: 
Photo Date:  8/13/2010  Upload Date: 8/18/2010 1:43:10 PM
Location:  Duncan, NE
Author:  Garth McMains
Categories: 
Locomotives:  UP 8403(SD70ACe) UP 4491(SD70M) UP 4882(SD70M) UP 3831(SD70M)
Views:  1177   Comments: 0
UPY 1221
Title:  UPY 1221
Description: 
Photo Date:  11/9/2010  Upload Date: 11/18/2010 10:25:44 PM
Location:  North Platte, NE
Author:  Steven McKay
Categories: 
Locomotives:  UPY 1221(SW1500) UPY 808(SD38-2) UPY 838(SD38-2) UP 3100(SD40-2) UP 3831(SD70M)
Views:  1277   Comments: 0
UP 3831
Title:  UP 3831
Description: 
Photo Date:  1/16/2011  Upload Date: 9/21/2013 11:40:00 AM
Location:  Salem, IL
Author:  Zachary Walters
Categories:  Roster
Locomotives:  UP 3831(SD70M)
Views:  456   Comments: 0
UP-UP-BNSF on NS Train 212
Title:  UP-UP-BNSF on NS Train 212
Description:  Rockefellow Mill Road, 1159 hours.
Photo Date:  3/13/2011  Upload Date: 3/13/2011 7:48:55 PM
Location:  Rockefellows Mills, NJ
Author:  Kim Piersol
Categories: 
Locomotives:  UP 4667(SD70M) UP 3831(SD70M) BNSF 4558(C44-9W)
Views:  838   Comments: 1
UP 4667 212
Title:  UP 4667 212
Description: 
Photo Date:  3/13/2011  Upload Date: 3/13/2011 12:34:52 PM
Location:  Bethlehem, PA
Author:  Alex Berisha
Categories: 
Locomotives:  UP 4667(SD70M) UP 3831(SD70M) BNSF 4558(C44-9W)
Views:  841   Comments: 1
BNSF 4558 203
Title:  BNSF 4558 203
Description: 
Photo Date:  3/14/2011  Upload Date: 3/14/2011 7:33:15 PM
Location:  Lemoyne, PA
Author:  Alex Berisha
Categories: 
Locomotives:  BNSF 4558(C44-9W) UP 3831(SD70M) UP 4667(SD70M)
Views:  792   Comments: 0
UP 3831
Title:  UP 3831
Description: 
Photo Date:  8/6/2011  Upload Date: 8/9/2011 8:31:03 AM
Location:  Homewood, IL
Author:  joshua dudinetz
Categories:  Roster,Yard
Locomotives:  UP 3831(SD70M)
Views:  500   Comments: 0
UP 7797
Title:  UP 7797
Description:  Eastbound intermodal notching up.
Photo Date:  1/10/2012  Upload Date: 1/13/2012 4:47:06 PM
Location:  Wymola, AZ
Author:  Jeff Hollingshead
Categories:  Roster,Action
Locomotives:  UP 7797(AC45CCTE) UP 3831(SD70M)
Views:  1087   Comments: 2
UP 7797
Title:  UP 7797
Description:  Eastbound intemodal splits the signals.
Photo Date:  1/10/2012  Upload Date: 1/13/2012 4:47:31 PM
Location:  Wymola, AZ
Author:  Jeff Hollingshead
Categories:  Roster,Signal,Action
Locomotives:  UP 7797(AC45CCTE) UP 3831(SD70M)
Views:  931   Comments: 0
Southbound UP Loaded Grain Train
Title:  Southbound UP Loaded Grain Train
Description:  An ACe leads UP Train GSPFCP 14 south across the diamonds at Birmingham on the CP Kansas City Sub.
Photo Date:  7/15/2012  Upload Date: 7/18/2012 11:25:08 PM
Location:  Birmingham, MO
Author:  Zach Pumphery
Categories: 
Locomotives:  UP 8646(SD70ACe) UP 3831(SD70M)
Views:  816   Comments: 2
UP 3831
Title:  UP 3831
Description:  As the sun begins to set, M-VPDM heads out of town.
Photo Date:  10/28/2012  Upload Date: 11/18/2012 7:26:28 PM
Location:  Mankato, MN
Author:  Dillon Petrowitz
Categories: 
Locomotives:  UP 3831(SD70M)
Views:  552   Comments: 0
UP 3831
Title:  UP 3831
Description: 
Photo Date:  7/19/2015  Upload Date: 9/1/2015 9:41:33 PM
Location:  Brady, NE
Author:  Glenn Laux
Categories:  Roster
Locomotives:  UP 3831(SD70M)
Views:  534   Comments: 0
UP 3831
Title:  UP 3831
Description: 
Photo Date:  9/6/2015  Upload Date: 2/10/2015 11:50:40 AM
Location:  Elmhurst, IL
Author:  Jacob Francois
Categories:  Action
Locomotives:  UP 3831(SD70M)
Views:  404   Comments: 0
UP 7452
Title:  UP 7452
Description: 
Photo Date:  8/27/2016  Upload Date: 5/23/2018 11:10:44 PM
Location:  Montebello, CA
Author:  Dom Blevins
Categories: 
Locomotives:  UP 7452(AC45CCTE) UP 3831(SD70M)
Views:  584   Comments: 0
UP 3831 leads the UP MHOSH-20
Title:  UP 3831 leads the UP MHOSH-20
Description:  UP 3831 and UP 8687 lead the UP MHOSH-20
Photo Date:  1/20/2018  Upload Date: 1/21/2018 1:35:15 AM
Location:  Spring, TX
Author:  Cole Boyer
Categories:  Roster,Track,Action
Locomotives:  UP 3831(SD70M) UP 8687(SD70ACe)
Views:  520   Comments: 2
UP 3831 and UP 8687 lead UP MHOSH-20
Title:  UP 3831 and UP 8687 lead UP MHOSH-20
Description:  UP 3831 and UP 8687 lead the UP MHOSH-20
Photo Date:  1/20/2018  Upload Date: 1/21/2018 1:37:20 AM
Location:  Spring, TX
Author:  Cole Boyer
Categories:  Roster,Track,Action
Locomotives:  UP 3831(SD70M) UP 8687(SD70ACe)
Views:  571   Comments: 1
UP 3831 departing Colton
Title:  UP 3831 departing Colton
Description:  UP 3831 is 2nd in Consist on a Northbound Manifest
Photo Date:  3/23/2020  Upload Date: 1/20/2021 1:48:25 AM
Location:  West Colton, CA
Author:  Ryan Hahn
Categories:  Roster,Bridge,Action
Locomotives:  UP 3831(SD70M)
Views:  439   Comments: 0


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