This is based on the Bloukrans river bridge in South Africa.This version carries double track on top although the original is a road bridge.This can look a little strange if stretched to the wrong length, it should be used at 300m, I suggest using a ruler to set the start and end locations and then laying the bridge to that before raising it to the desired height. The original is at just over 200m high but that would be difficult in Trainz so just make it high enough to look right..