Further inspection would reveal the slight increase in the boiler shell and driving piston diameters as well as five additional inches on the driver wheelbase.These upgrades netted the locomotive a few thousand more pounds of weight over the drivers.
Moreover, time-dependent behavior was investigated for all mixes in terms of drying shrinkage test.
A group of 82 slightly heaver consolidations were acquired between 18 from Baldwin and Grant Locomotive Works and were designated as Class 60.
A number of these revered diamond stack kettles survived into the 20th century.
A relatively ‘newer’ design to the D&RG, these little engines proved that they were more than up to the task of helping to expand the young railroad.
In 1877, the first steam locomotives with a 2-8-0 wheel arrangement arrived for service on the Denver and Rio Grande Railway.