Combination bridges - sample sizes/prices
A combo unit consists of two trestle segments joined by a deck bridge. This type of design is perfect for a railroad spanning a river or gorge. The photo shows a unit built for a gorge crossing, with bents of various heights to match landscape contours. It can also be built with bents at equal heights for different landscape options. 

This particular style of combination unit is offered in N/n3, sized at 14" long by 3.75 " in height and priced at $99.99.  

The HO/HOn3 version is 22" long by 6" high, priced at $119.99. Like all my work, if you have a need for something in different measurements, then please email for a quote.