Engine info courtesy of logging engine expert Martin Hansen and John Taubeneck.
There were very few times in the age of steam that there was only one example built of a particular wheel arrangement. Well, here is one such example.
Built in July, 1927 by ALCO for the Sugar Pine Lumber Co. of Pinedale, California, this was the only 2-10-2T ever built. She was the 5th in a series of saddle tank rod-engines built by ALCO for the Sugar Pine Lumber Co. The first 4 were the very first 2-8-2T's built by ALCO and they proved themselves quite well after those 4 were delivered in 1923, 1924 and 1925.
Given the success of 2-8-2T's #1-4, SPL returned to ALCO and asked for an even larger version and thus, the 2-10-2T we see her was built in 1927. ALCO dubbed this unique wheel arrangement the "Minaret" after the SPL common carrier, the Minarets & Western RR.
Despite her long and ridged set of drivers, ALCo devised a means of still making her flexible enough to handle the rigors of the SPL logging railroad trackage. She was an impressive machine and her 52,800#s of tractive force was nearly 18,000#s more than her sister 2-8-2T's on the SPL roster.
Sadly, the Sugar Pine Lumber Co. shut down for good in 1933 and the assets, inlucing 2-10-2T #5, were sold off in bankrupcy in 1935. For the next 12 years, #5 worked for a series of construction contractor companies, with H.J Kaiser being her last owner as we see her at their yard in Fontana, California in 1947 as their #1119.
By the end of 1947, #1119 would fall to the scrappers torch. Thus would end the short 20-year life of the only 2-10-2T built for service in the U.S.
07-27 2-10-2T 22x28 134 tons
Sugar Pine Lbr. Co. #5 Pinedale, CA
Pensacola Co. (D) Pinedale, CA 11-35
Mason-Walsh-Atkinson-Kier & Co. #800 Mason City, WA (Grand Coulee Dam)
Consolidated Builders #800 Mason City, WA 03-18-38
H. J. Kaiser Co. #1119
ALCO builders photo of Sugar Pine Lumber Co. #5, dated June 1927.
See more about the engines that helped build the dam here.