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1/6/2026
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Home > Union Pacific Railroad Company > Locomotives > Alco 4-8-8-4 > UP 4006
Pictures of UP 4006
 
Owner: Union Pacific Railroad Company
Model:Alco 4-8-8-4Built As:UP 4006 (4-8-8-4)
Serial Number:69577Order No:S-1844
Frame Number:23¾X32 cylinders, 68" driversBuilt:8/1941
Notes:donated 06/1961 to St Louis County Museum Of Transportation
Other locos with this serial:  UP 4006(4-8-8-4)
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Inspection Of 4006
Title:  Inspection Of 4006
Description:  Near Echo, the engineer of UP 4006 inspects the drivers of his big engine. Echo is located on the UPs Evanston-Ogden mainline, and was one of the major refueling points for steam engines on this route. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  1/1/1942  Upload Date: 6/25/2022 1:30:37 AM
Location:  Echo, UT
Author:  Union Pacific Museum
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  567   Comments: 0
Union Pacific 4006
Title:  Union Pacific 4006
Description:  Big Boy 4006 makes a switching move in the yard in Laramie. I assume the man riding on the cab steps is a brakeman, who will ride the Big Boy to the next switch that needs throwing. 4006 was donated to the National Museum of Transport in Kirkwood, Missouri in May, 1961. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  8/7/1948  Upload Date: 7/8/2022 12:36:00 AM
Location:  Laramie, WY
Author:  E.L. DeGolyer
Categories:  Yard,Steam,Action
Locomotives:  UP 4006(4-8-8-4)
Views:  289   Comments: 0
Refueling at Laramie
Title:  Refueling at Laramie
Description:  Four Big Boys are serviced at the coal chute in Laramie. Its around 1953, and the only diesel visible is an F-unit behind the coal chute. UP 4016 would be scrapped, but UP 4006 would survive and is now preserved in Kirkwood, Missouri Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  1/1/1953  Upload Date: 8/7/2021 7:22:22 PM
Location:  Laramie, WY
Author:  B.F.Cutler
Categories:  Yard,Steam,Track,Action
Locomotives:  UP 4016(4-8-8-4) UP 4006(4-8-8-4)
Views:  425   Comments: 0
At The Service Tracks
Title:  At The Service Tracks
Description:  Big Boy 4006 rests between runs at the Laramie engine facilities. 4006 was built in September of 1941, and would be listed as laid aside waiting for repairs as late as November 30, 1958. However, by the end of 1960 it was marked as stored and unserviceable. It would stay on UP property for another five and a half months, before being donated to the National Museum of Transport in Missouri in May of 1961. Obtained from Union Pacific Steam: Big Boy Portraits (Bush, Ehernberger)
Photo Date:  5/8/1954  Upload Date: 7/6/2022 2:26:05 AM
Location:  Laramie, WY
Author:  F.G.Gschwind
Categories:  Roster,Yard,Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  233   Comments: 0
Big Boy
Title:  Big Boy
Description: 
Photo Date:  9/7/2002  Upload Date: 7/23/2013 10:50:09 PM
Location:  Saint Louis, MO
Author:  Hunter Lohse
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1339   Comments: 0
UP 4006
Title:  UP 4006
Description:  UP Big-Boy 4006 is the centerpiece of the NTM collection. Beautiful Locomotive!!!
Photo Date:  5/19/2005  Upload Date: 6/25/2005 12:00:35 AM
Location:  Saint Louis, MO
Author:  Richard Vitchner
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  3703   Comments: 2
UP 4006
Title:  UP 4006
Description:  Another View of the 4006 as she rests at NTM
Photo Date:  5/19/2005  Upload Date: 6/25/2005 12:05:29 AM
Location:  Saint Louis, MO
Author:  Richard Vitchner
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  2395   Comments: 0
UP 4006 6944
Title:  UP 4006 6944
Description: 
Photo Date:  5/21/2005  Upload Date: 12/9/2012 1:45:37 PM
Location:  Kirkwood, MO
Author:  Zachary Walters
Categories:  Roster
Locomotives:  UP 4006(4-8-8-4) UP 6944(DDA40X)
Views:  1830   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  6/27/2006  Upload Date: 12/17/2006 10:38:36 AM
Location:  Kirkwood, MO
Author:  paul gmoser
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1298   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  6/27/2006  Upload Date: 12/17/2006 10:39:29 AM
Location:  Kirkwood, MO
Author:  paul gmoser
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1295   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  6/27/2006  Upload Date: 12/17/2006 10:40:22 AM
Location:  Kirkwood, MO
Author:  paul gmoser
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1618   Comments: 0
UP 4006 Firebox
Title:  UP 4006 Firebox
Description: 
Photo Date:  6/27/2006  Upload Date: 12/17/2006 10:41:22 AM
Location:  Kirkwood, MO
Author:  paul gmoser
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1957   Comments: 0
UP 4006 at MofT in St Louis Co, MO
Title:  UP 4006 at MofT in St Louis Co, MO
Description:  Big Boy 4006 at the Museum of Transportation in St Louis Co, MO
Photo Date:  8/14/2006  Upload Date: 9/4/2006 12:38:02 AM
Location:  Saint Louis, MO
Author:  Butch Getz
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  2502   Comments: 1
UP 4006
Title:  UP 4006
Description:  She is bigger then she looks in this Photo
Photo Date:  6/12/2007  Upload Date: 6/18/2007 10:46:28 PM
Location:  Kirkwood, MO
Author:  John J. Poshepny
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1538   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  7/22/2007  Upload Date: 7/23/2007 6:37:47 PM
Location:  Kirkwood, MO
Author:  Tracy Bone
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1045   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  7/22/2007  Upload Date: 7/23/2007 6:38:08 PM
Location:  Kirkwood, MO
Author:  Tracy Bone
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1249   Comments: 0
UP 900081
Title:  UP 900081
Description: 
Photo Date:  7/23/2007  Upload Date: 8/2/2007 3:45:34 PM
Location:  Kirkwood, MO
Author:  Neil Stutzman
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1801   Comments: 0
UP 900082
Title:  UP 900082
Description:  I set my notebook by the blades for scale.
Photo Date:  7/23/2007  Upload Date: 8/2/2007 3:47:10 PM
Location:  Kirkwood, MO
Author:  Neil Stutzman
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1571   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  7/23/2007  Upload Date: 8/2/2007 3:51:58 PM
Location:  Kirkwood, MO
Author:  Neil Stutzman
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1329   Comments: 0
Looking past the pilot of Union Pacific Big Boy No. 4006 to the rotary snow plow no. 9000081 at the Museum of Transportation
Title:  Looking past the pilot of Union Pacific Big Boy No. 4006 to the rotary snow plow no. 9000081 at the Museum of Transportation
Description: 
Photo Date:  8/7/2007  Upload Date: 6/28/2012 12:11:30 PM
Location:  Saint Louis, MO
Author:  Mark Dinkel
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1022   Comments: 0
Union Pacific Big Boy No. 4006 at the Museum of Transportation
Title:  Union Pacific Big Boy No. 4006 at the Museum of Transportation
Description: 
Photo Date:  8/7/2007  Upload Date: 6/28/2012 12:13:18 PM
Location:  Saint Louis, MO
Author:  Mark Dinkel
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1030   Comments: 0
Union Pacific Big Boy No. 4006 at the Museum of Transportation
Title:  Union Pacific Big Boy No. 4006 at the Museum of Transportation
Description: 
Photo Date:  8/7/2007  Upload Date: 6/28/2012 12:13:58 PM
Location:  Saint Louis, MO
Author:  Mark Dinkel
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  2248   Comments: 0
Union Pacific Big Boy No. 4006 at the Museum of Transportation
Title:  Union Pacific Big Boy No. 4006 at the Museum of Transportation
Description: 
Photo Date:  8/7/2007  Upload Date: 6/28/2012 12:14:37 PM
Location:  Saint Louis, MO
Author:  Mark Dinkel
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  3418   Comments: 0
Union Pacific Big Boy No. 4006 at the Museum of Transportation
Title:  Union Pacific Big Boy No. 4006 at the Museum of Transportation
Description: 
Photo Date:  8/7/2007  Upload Date: 6/28/2012 12:15:19 PM
Location:  Saint Louis, MO
Author:  Mark Dinkel
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1571   Comments: 0
Union Pacific Big Boy No. 4006 at the Museum of Transportation
Title:  Union Pacific Big Boy No. 4006 at the Museum of Transportation
Description: 
Photo Date:  8/7/2007  Upload Date: 6/28/2012 12:22:52 PM
Location:  Saint Louis, MO
Author:  Mark Dinkel
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  919   Comments: 0
UP 4066
Title:  UP 4066
Description:  The UP Big Boy cant be appreciated unless you are standing next to it
Photo Date:  11/17/2007  Upload Date: 11/19/2007 5:45:20 PM
Location:  Kirkwood, MO
Author:  Al Culley
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1139   Comments: 1
UP 4006
Title:  UP 4006
Description: 
Photo Date:  1/3/2008  Upload Date: 1/3/2008 11:57:58 PM
Location:  Saint Louis, MO
Author:  Jeff Carlson
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1378   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  1/3/2008  Upload Date: 1/4/2008 12:01:53 AM
Location:  Saint Louis, MO
Author:  Jeff Carlson
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1340   Comments: 0
UP 4006
Title:  UP 4006
Description:  One of 8 surviving Big Boys
Photo Date:  6/15/2008  Upload Date: 6/4/2009 3:18:24 PM
Location:  Kirkwood, MO
Author:  Hunter Lohse
Categories:  Roster,Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  2998   Comments: 0
UP 4006
Title:  UP 4006
Description:  One of 8 surviving Big Boys
Photo Date:  6/15/2008  Upload Date: 6/4/2009 3:21:14 PM
Location:  Kirkwood, MO
Author:  Hunter Lohse
Categories:  Roster,Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1150   Comments: 0
UP 4006
Title:  UP 4006
Description:  One of 8 survivng Big Boys
Photo Date:  6/15/2008  Upload Date: 6/5/2009 6:15:34 PM
Location:  Kirkwood, MO
Author:  Hunter Lohse
Categories:  Roster,Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1391   Comments: 0
The Big Boy
Title:  The Big Boy
Description:  UP #4006 is on static display at the National Museum of Transport.
Photo Date:  7/8/2008  Upload Date: 7/13/2008 10:08:40 AM
Location:  Saint Louis, MO
Author:  Alex Vaughn
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1217   Comments: 1
UP 4006
Title:  UP 4006
Description: 
Photo Date:  4/11/2009  Upload Date: 4/12/2009 1:44:32 PM
Location:  Kirkwood, MO
Author:  Chris Bodkin
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1039   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  4/11/2009  Upload Date: 4/12/2009 2:23:48 PM
Location:  Kirkwood, MO
Author:  Chris Bodkin
Categories: 
Locomotives:  UP 4006(4-8-8-4) EL 3607(SD45)
Views:  1188   Comments: 0
EL 3607
Title:  EL 3607
Description: 
Photo Date:  4/11/2009  Upload Date: 4/12/2009 2:32:18 PM
Location:  Kirkwood, MO
Author:  Chris Bodkin
Categories: 
Locomotives:  EL 3607(SD45) UP 4006(4-8-8-4) SPAX 2740(PCC)
Views:  1307   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  7/18/2009  Upload Date: 7/21/2009 12:41:14 AM
Location:  Kirkwood, MO
Author:  Joe Hughes
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1129   Comments: 0
UP 4006
Title:  UP 4006
Description:  UP Big Boy 4006 sits at the Transportation Museum. It will soon be cosmetically restored.
Photo Date:  8/21/2009  Upload Date: 8/24/2009 9:03:30 PM
Location:  Kirkwood, MO
Author:  Robby Gragg
Categories: 
Locomotives:  UP 4006(4-8-8-4)
Views:  1093   Comments: 0
UP 4006
Title:  UP 4006
Description:  Got to love the big steam locomotives, and this is one of the biggest. UP Big Boy #4006 at the Museum of Transportation.
Photo Date:  3/7/2010  Upload Date: 2/1/2011 1:25:32 AM
Location:  Saint Louis, MO
Author:  Don Dieckmann
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1156   Comments: 0
Big Steam UP 4006
Title:  Big Steam UP 4006
Description:  UP Big Boy static display
Photo Date:  8/30/2010  Upload Date: 9/18/2010 10:26:43 AM
Location:  Saint Louis, MO
Author:  David Bodkin
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  3325   Comments: 0
UP 4006
Title:  UP 4006
Description:  UP 4006
Photo Date:  11/4/2010  Upload Date: 10/19/2011 10:33:24 AM
Location:  Saint Louis, MO
Author:  Mike Pennington
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1156   Comments: 0
UP 4006
Title:  UP 4006
Description: 
Photo Date:  4/2/2011  Upload Date: 7/5/2011 9:20:25 AM
Location:  Kirkwood, MO
Author:  Zachary Walters
Categories:  Roster
Locomotives:  UP 4006(4-8-8-4)
Views:  873   Comments: 0
Big Boy
Title:  Big Boy
Description: 
Photo Date:  4/2/2011  Upload Date: 4/6/2011 10:44:46 AM
Location:  Kirkwood, MO
Author:  Zachary Walters
Categories:  Roster,Action
Locomotives:  UP 4006(4-8-8-4)
Views:  922   Comments: 0
UP 4006 Big Boy
Title:  UP 4006 Big Boy
Description: 
Photo Date:  4/2/2011  Upload Date: 4/6/2011 10:45:13 AM
Location:  Kirkwood, MO
Author:  Zachary Walters
Categories:  Roster,Action
Locomotives:  UP 4006(4-8-8-4)
Views:  1089   Comments: 2
UP #4006 Big Bo
Title:  UP #4006 Big Bo
Description:  yUP #8006 Big Boy St Louis, Mo Transportation Museum
Photo Date:  5/7/2011  Upload Date: 5/13/2011 4:06:24 PM
Location:  Saint Louis County, MO
Author:  W G Peterson
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1872   Comments: 0
UP #4006 Big Boy
Title:  UP #4006 Big Boy
Description:  UP #4006 Big Boy St Louis, Mo Transportation Museum
Photo Date:  5/7/2011  Upload Date: 5/13/2011 4:07:25 PM
Location:  Saint Louis County, MO
Author:  W G Peterson
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  4377   Comments: 0
UP #4006 Big Boy
Title:  UP #4006 Big Boy
Description:  UP #4006 Big Boy St Louis, Mo Transportation Museum
Photo Date:  5/7/2011  Upload Date: 5/7/2011 12:00:00 AM
Location:  Saint Louis County, MO
Author:  W G Peterson
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1445   Comments: 0
UP #4006 Big Boy
Title:  UP #4006 Big Boy
Description:  UP #4006 Big Boy
Photo Date:  5/7/2011  Upload Date: 5/13/2011 4:09:31 PM
Location:  Saint Louis County, MO
Author:  W G Peterson
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  992   Comments: 0
UP #4006 Big Boy
Title:  UP #4006 Big Boy
Description:  UP #4006 Big Boy St Louis, Mo Transportation Museum
Photo Date:  5/7/2011  Upload Date: 5/13/2011 4:11:04 PM
Location:  Saint Louis County, MO
Author:  W G Peterson
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  1190   Comments: 0
UP #4006 Big Boy
Title:  UP #4006 Big Boy
Description:  UP #4006 Big Boy St Louis, Mo Transportation Museum
Photo Date:  5/7/2011  Upload Date: 5/13/2011 4:12:03 PM
Location:  Saint Louis County, MO
Author:  W B Peterson
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  835   Comments: 0
UP #4006 Big>Boy
Title:  UP #4006 Big>Boy
Description:  UP #4006 Big Boy St Louis, Mo Transportation Museum
Photo Date:  5/13/2011  Upload Date: 5/13/2011 4:05:17 PM
Location:  Saint Louis County, MO
Author:  W G Peterson
Categories:  Steam
Locomotives:  UP 4006(4-8-8-4)
Views:  900   Comments: 0

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