Union Pacific 6900 Series Centennials DDA40X 6600hp. (6900-6946) built between 4/69 - 9/71. Equipped with two 16-645E3A Diesel Engines, Fuel tank 8200 Gals, (2) 4-axle "D" truck assemb... (more)
An eastbound Union Pacific engineering special approaches Tunnel 1 at Plainview, Colorado, on the afternoon of August 13, 2003. The 11-car passenger train is powered by impressive EMD DDA40X “Cent... (more)
Four Union Pacific DDA40X Centennials stored with GP30B's/SD24A's and B's at UP's Yermo Yard, near Barstow, California.
UP 6938 was retired on May 25, 1985 and was cosmetically restored to be put on display in front of the Jenks Shops where it still sits today.
The Centennials were the largest diesel electric locomotives ever built comprising of two engines on one frame they delivered 6,600 horsepower and were only designed and built for the Union Pacifi... (more)
”Someday, This Will Be Mine!”
An aspiring young engineer holds onto the handrail of one of the world’s largest diesel locomotives as he poses for a portrait. In a few short hours, ... (more)
Union Pacific EMD DDA40X No. 6938 sits on display in front of the railroad’s Downing B. Jenks Shop at North Little Rock, Arkansas, on May 8, 2014.
UP 6937 is the first in a long line of stored DD40s at the Union Pacific yard in Las Vegas. Taken with permission.
UP 6936 looks in very good condition compared to sister UP 6932 as they sit at the south end of Yermo Yard. Photo taken with permission.
Railfans have gathered in the tiny hamlet of Kelso California to watch DD40X 6936 do some switching in the small yard. The 6936 was back in service again earning revenue for the railroad. Cima Hil... (more)
Two UP DDA40X "Centennials" 6922 and 6929 at Council, Bluffs, Iowa in August 1980.
Union Pacific EMD DDA40X “Centennial” No. 6936 powers a westbound engineering passenger special curving through Pinecliffe, Colorado, on October 4, 2001.
A Union Pacific officer special rolls along the Sacramento River on a summer afternoon. In 1997, the railroad was washed away here by floodwaters.
A westbound Union Pacific train changes crews in front of the depot at Cheyenne, Wyoming, in April 1984. The train is led by an imposing UP DDA40X No. 6935. Delivered by EMD in 1969-71, UP Nos. 69... (more)
While it really doesn't 'belong' on the Rio Grande, you can't help but stare in awe at the 6936.