iPod Video - Real railroads have lots of small trestles and bridges along the route and if you put in more small bridges your model railroad's mainline run will seem longer. In part 1 of the Tenmile Creek Series, Joe Fugate shares numerous expert secrets in this video segment on building model train bridges out of styrene.  In the Tenmile Creek series, Joe Fugate takes a scene on his model railroad from bare benchwork to a completely finished, realistic scene.