This combination truss and trestle span is based the Greenhorn Trestle on the Nevada
County Narrow Gauge Railroad. Details were sparse and only a single photo was available so this might not
be overly accurate. It was listed as the 2nd longest span on the line so it had to be somewhere between 330
and 740 ft long. I've made it a little over 500 ft. The truss is of unusual design (and darn flimsy looking too)
but the photo showed a 4-4-0 and 2 passenger cars crossing it so apperently its stronger then it looks. It
was bypassed in the 1908 re-alignment.