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DD40X Centennial Engine 

Southern California Chapter
Railway and Locomotive Historical Society







     Thank you for your interest in locomotive No. 6915.  This unit is the largest and most powerful diesel locomotive ever built.  It was retired in 1984 and donated to the Southern California Chapter of the Railway & Locomotive Historical Society in 1986.  Engines in this class were custom built for the Union Pacific Railroad and were called Centennials in honor of the 100th anniversary of the driving of the Golden Spike at Promontory, Utah in 1869.
     No. 6915 is one of 46 units constructed, and is one of only a handful of Centennials left, the nearest examples being at Portola, CA several hundred miles to the North, and at Cheyenne Wyoming, where unit 6936 is kept in running condition for special events, by Union Pacific.  No. 6915 was built by the Electro-Motive Division of General Motors in October, 1969, and produced 6,600 hp. from two V-16 diesel engines.  No. 6915 had a top speed of 90 mph and weighed 545,432 lbs.  We are currently restoring No. 6915 to its configuration at the time of its retirement.  We have a long way to go, and any help, information or donations will be welcomed.
 

UP Centennial Photo Gallery

Photos below used by permission and are copyright of the authors as noted, all rights reserved

Number 6915 on display in Pomona

UP's No. 6936 "on the road" and seen in Portland, Oregon's Union Station - photo by "Shasta"
 

Sunny day in Pomona with UP 9000 in background

"Roster shot"


The UP 6915 in all its glory.  Enjoy!!

 

A Piece of History 
Was Stolen  

Sometime during the first two weeks of April, someone climbed on top of the UP 6915 (Centennial) and STOLE the "Leslie 5 Chime Horn".  If anyone knows any information about the horn, please contact any of our members at (909) 623-0190.  Your help in finding and returning this piece of history is greatly appreciated.

 


 
 



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Page last revised - 7/6/07