2-8-4 replaced by even more powerful 2-10-4 Texas type locomotives. Six years after the Atchison, Topeka and Santa Fe Railway experimented with the first 2-10-4, the first 2-8-4s were built for the Boston & Albany (B&A) by Lima Locomotive Works in 1925. The railroad's route over the Berkshires was a substantial test for the new locomotives, but the type proved its worth, outpacing the 2-8-2 Mikados already in use there. This mountain range lent its name to the locomotive type, though the Chesapeake and Ohio Railway preferred the name "Kanawha" for their 2-8-4s. Buoyed by the success of the demonstrations on
2-8-8-2 still used on steel mill lines and other railroads until 1983. Other equivalent classifications are: UIC classification: 1DD1 (also known as German classification and Italian classification) French classification: 140+041 Turkish classification: 45+45 Swiss classification: 4/5+4/5 The first 2-8-8-2 was built in 1909 by Baldwin, who sold two to the Southern Pacific Railroad (classified MC-1), and then three each to the Union Pacific Railroad and UP-owned Oregon Railroad and Navigation Company. Baldwin conceived the type as an expansion of the 2-6-6-2 permitting a greater tractive effort. The next order for the type was from the Southern Pacific; these differed in being