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At Union Pacific’s Downing B. Jenks Shop at North Little Rock, Arkansas, A welder from the boiler shop (boilermaker by trade) carefully repairs a locomotive snow plow on May 19, 2015. In the bac... (more)

A view from above inside the main shop building at Union Pacific’s Downing B. Jenks Shop at North Little Rock, Arkansas, sees locomotives gathered for rebuild and overhaul, including UP EMD SD40... (more)

Union Pacific EMD SD40-2 No. 3071 is in the process of being remanufactured into a SD40N at railroad’s capable shop at North Little Rock, Arkansas, on May 18, 2015.

SD70ACe-T4 3071 is rolling through the openness of Erda, Utah, with a 8800 ton train. It's about to enter the city of Tooele/Warner on the Lynndyl Subdivision.

My opportunities to catch EMD Tier 4's has been few and far between. I was elated to catch one tonight. It was neat to hear it by itself working it's guts out, to get an idea of what they really s... (more)

UP 3071, an SD70ACe-T4 model, leads this export coal train, which was loaded on the North Fork branch south of Grand Junction, Colorado. This ex. D&RGW trackage parallels the majestic Book Cliffs ... (more)

One of the Union Pacific’s newer Tier 4’s leads a Global 3 – Global 4 transfer across its own tracks at JB Tower in West Chicago, Illinois. The train has arrived from Rochelle on the UP (CN... (more)

Passing one of the few remaining single track sections on the Sunset Route in CA, UP 3071 nears the west end of Mortmar siding as it races west leading the KG4LB.

Working it's way up the east side of Beaumont Pass, UP 3071 is down on it's knees as it struggles upgrade leading a long KG4LB at Cabazon.

UP 3071 leads a westbound KG4LB through Garnet in the late afternoon as it works across the Yuma Sub.

Two welders get horizontal to replace a worn out floor in the nose of Union Pacific SD40-2 No. 3071 during the locomotive’s transformation into a SD40N at UP’s Downing B. Jenks Shop at North L... (more)

Several welders replace worn out floors and sheet metal during Union Pacific SD40-2 No. 3071’s transformation into a SD40N at the railroad’s Downing B. Jenks Shop at North Little Rock, Arkansa... (more)

Now that’s a super vac!
During a locomotive rebuild process of cutting, welding, grinding, etc., a lot of debris and other contaminants is generated, in addition to all the dirt accum... (more)

A welder grinds some fresh weld repairs to a plow at Union Pacific’s Downing B. Jenks Shop at North Little Rock, Arkansas, on May 19, 2015. On the left is EMD SD40-2 No. 3071 which is in the pro... (more)

A welder puts some elbow grease into it as he grinds fresh welds on repairs to the nose of Union Pacific SD40-2 No. 3071 at the Downing B. Jenks Shop in North Little Rock, Arkansas, on May 19, 201... (more)