Judging by the bar code stickers, these appear to be new wheels.
I've never seen an MKT logo with this "wording" before.
This bridge was built in 1909.
EMD units rule the DGNO.
Just a few moments earlier these 4 locomotives were part of the 8 unit consist shown in: http://www.railpictures.net/viewphoto.php?id=153895
CEFX 9330 & CEFX 9373 , both "Tunnel Motors"
8 (fully operational) DGNO locomotives in one picture ...
This appears to be a "NEW" unit for the DGNO