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3/19/2026
 
 
 
 
 
Owner: Union Pacific Railroad Company
Model:EMD DDA40XBuilt As:UP 6931 (DDA40X)
Serial Number:35505Order No:7198
Frame Number:7198-7Built:8/1970
Notes:blt 8/70
Other locos with this serial:  UP 6931(DDA40X)
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UP 6931
Title:  UP 6931
Description:  UP 6931 has just crossed the Espee east/west mainline as it assists an eastbound freight
Photo Date:  6/29/1977  Upload Date: 1/26/2011 8:57:37 PM
Location:  Colton, CA
Author:  Ron Hawkins
Categories:  Roster
Locomotives:  UP 6931(DDA40X)
Views:  1024   Comments: 1
1092-17 Westbound UP freight
Title:  1092-17 Westbound UP freight
Description: 
Photo Date:  10/1/1977  Upload Date: 4/29/2007 1:59:14 PM
Location:  Bushnell, NE
Author:  John Hill
Categories:  Action
Locomotives:  UP 6931(DDA40X) UP 8009(SD40-2) UP 8072(SD40-2) UP 6913(DDA40X)
Views:  2517   Comments: 2
1092-18 Westbound UP freight
Title:  1092-18 Westbound UP freight
Description: 
Photo Date:  10/1/1977  Upload Date: 4/29/2007 1:59:36 PM
Location:  Bushnell, NE
Author:  John Hill
Categories:  Action
Locomotives:  UP 6913(DDA40X) UP 8072(SD40-2) UP 8009(SD40-2) UP 6931(DDA40X)
Views:  2127   Comments: 1
UP 6931 East
Title:  UP 6931 East
Description:  Randy Curlin Collection
Photo Date:  10/8/1978  Upload Date: 8/24/2025 10:27:26 PM
Location:  Cajon Pass, CA
Author:  Randy Curlin Collection
Categories:  Bridge,Action
Locomotives:  UP 6931(DDA40X)
Views:  294   Comments: 0
UP 6931
Title:  UP 6931
Description:  One of the 25 Centennials refurbished and returned to service during the Spring of 1984, UP 6931 was working up Cajon Pass as the trailing unit on an eastbound intermodal in this view. Retired for good 5/85, she was traded in to EMD and scrapped 5/86. Date of photo approximate.
Photo Date:  4/1/1984  Upload Date: 1/28/2010 6:50:58 PM
Location:  Silverwood, CA
Author:  Mike Woodruff
Categories: 
Locomotives:  UP 6931(DDA40X)
Views:  766   Comments: 2


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