Approaching the Watson interchange Southern Indiana Railroad (SIND) is a small railroad servicing a cement plant that operates from Sellersburg to the interchange with CSX at Watson, Indiana. They operate with two rebuilt Alco switches, now fitted with 600-horsepower Cummins diesel engines, on former interuban right-of-way. Here S-2m No. 103 approaches the CSX interchange on August 10, 2012, with eleven hoppers and boxcars of cement.