Dynamics howl as the engineer on 338 tries to keep the heavy tonnage at speed as they cross the Wapsipinicon River in Independence. Down hill fast, up hill slow, is the name of the game on the Dubuque Sub. 338 is only 25 miles into the daily trek to Kirk Yard. I brought in around 15,000 tons last night from Ft. Dodge on L570 for 338 today, but I see they left some of that behind at Waterloo, but there is still plenty for these 3 horses.